diff --git a/Action.c b/Action.c
index 1d373efb2..07e21dcaa 100644
--- a/Action.c
+++ b/Action.c
@@ -1,7 +1,7 @@
 /*
 htop - Action.c
 (C) 2015 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
@@ -519,7 +519,7 @@ static Htop_Reaction actionHelp(State* st) {
    int line = 0;
 
    mvaddstr(line++, 0, "htop " VERSION " - " COPYRIGHT);
-   mvaddstr(line++, 0, "Released under the GNU GPLv2. See 'man' page for more info.");
+   mvaddstr(line++, 0, "Released under the GNU GPLv2+. See 'man' page for more info.");
 
    attrset(CRT_colors[DEFAULT_COLOR]);
    line++;
diff --git a/Action.h b/Action.h
index 4a59072b6..e1d14e4f5 100644
--- a/Action.h
+++ b/Action.h
@@ -3,7 +3,7 @@
 /*
 htop - Action.h
 (C) 2015 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Affinity.c b/Affinity.c
index c1e73cc36..dc6a7fba0 100644
--- a/Affinity.c
+++ b/Affinity.c
@@ -2,7 +2,7 @@
 htop - Affinity.c
 (C) 2004-2011 Hisham H. Muhammad
 (C) 2020 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Affinity.h b/Affinity.h
index cf08cce7c..5e7bfe2e6 100644
--- a/Affinity.h
+++ b/Affinity.h
@@ -4,7 +4,7 @@
 htop - Affinity.h
 (C) 2004-2011 Hisham H. Muhammad
 (C) 2020 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/AffinityPanel.c b/AffinityPanel.c
index d50d5542c..9875a5ce8 100644
--- a/AffinityPanel.c
+++ b/AffinityPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - AffinityPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/AffinityPanel.h b/AffinityPanel.h
index 183e447d7..87b1b850f 100644
--- a/AffinityPanel.h
+++ b/AffinityPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - AffinityPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/AvailableColumnsPanel.c b/AvailableColumnsPanel.c
index 08cbb1756..7720bef4e 100644
--- a/AvailableColumnsPanel.c
+++ b/AvailableColumnsPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - AvailableColumnsPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/AvailableColumnsPanel.h b/AvailableColumnsPanel.h
index 828f7e6ca..aca59060d 100644
--- a/AvailableColumnsPanel.h
+++ b/AvailableColumnsPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - AvailableColumnsPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/AvailableMetersPanel.c b/AvailableMetersPanel.c
index c00aec182..ae289ec42 100644
--- a/AvailableMetersPanel.c
+++ b/AvailableMetersPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - AvailableMetersPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/AvailableMetersPanel.h b/AvailableMetersPanel.h
index 5d77c5d4a..f5f7a2ddd 100644
--- a/AvailableMetersPanel.h
+++ b/AvailableMetersPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - AvailableMetersPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/BatteryMeter.c b/BatteryMeter.c
index 26a5ac486..33d17b734 100644
--- a/BatteryMeter.c
+++ b/BatteryMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - BatteryMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 
 This meter written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
diff --git a/BatteryMeter.h b/BatteryMeter.h
index fa6d503cc..d0818b701 100644
--- a/BatteryMeter.h
+++ b/BatteryMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - BatteryMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 
 This meter written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
diff --git a/CPUMeter.c b/CPUMeter.c
index 28fb730a4..9974db994 100644
--- a/CPUMeter.c
+++ b/CPUMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - CPUMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/CPUMeter.h b/CPUMeter.h
index 6dbf815d8..7f2ddb1b0 100644
--- a/CPUMeter.h
+++ b/CPUMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - CPUMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/CRT.c b/CRT.c
index 5f1d5dd00..ce59994d0 100644
--- a/CRT.c
+++ b/CRT.c
@@ -1,7 +1,7 @@
 /*
 htop - CRT.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/CRT.h b/CRT.h
index f2c2c22ed..037279b8d 100644
--- a/CRT.h
+++ b/CRT.h
@@ -3,7 +3,7 @@
 /*
 htop - CRT.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/CategoriesPanel.c b/CategoriesPanel.c
index 21010b3c7..30867ee9a 100644
--- a/CategoriesPanel.c
+++ b/CategoriesPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - CategoriesPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/CategoriesPanel.h b/CategoriesPanel.h
index 451a483db..825cd0696 100644
--- a/CategoriesPanel.h
+++ b/CategoriesPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - CategoriesPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ClockMeter.c b/ClockMeter.c
index 79bdecd92..8e3b66e64 100644
--- a/ClockMeter.c
+++ b/ClockMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - ClockMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ClockMeter.h b/ClockMeter.h
index 675df3d9f..def046086 100644
--- a/ClockMeter.h
+++ b/ClockMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - ClockMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ColorsPanel.c b/ColorsPanel.c
index 79f001c0a..0ea215838 100644
--- a/ColorsPanel.c
+++ b/ColorsPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - ColorsPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ColorsPanel.h b/ColorsPanel.h
index 047f7afa0..373ec65ce 100644
--- a/ColorsPanel.h
+++ b/ColorsPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - ColorsPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ColumnsPanel.c b/ColumnsPanel.c
index d0c2b88ed..a1450bb0b 100644
--- a/ColumnsPanel.c
+++ b/ColumnsPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - ColumnsPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ColumnsPanel.h b/ColumnsPanel.h
index 8bc806eb2..d9360f46d 100644
--- a/ColumnsPanel.h
+++ b/ColumnsPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - ColumnsPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/CommandLine.c b/CommandLine.c
index f0d22557b..a352e4e3f 100644
--- a/CommandLine.c
+++ b/CommandLine.c
@@ -2,7 +2,7 @@
 htop - CommandLine.c
 (C) 2004-2011 Hisham H. Muhammad
 (C) 2020-2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
@@ -47,7 +47,7 @@ static void printVersionFlag(const char* name) {
 static void printHelpFlag(const char* name) {
    printf("%s " VERSION "\n"
           COPYRIGHT "\n"
-          "Released under the GNU GPLv2.\n\n"
+          "Released under the GNU GPLv2+.\n\n"
           "-C --no-color                   Use a monochrome color scheme\n"
           "-d --delay=DELAY                Set the delay between updates, in tenths of seconds\n"
           "-F --filter=FILTER              Show only the commands matching the given filter\n"
diff --git a/CommandLine.h b/CommandLine.h
index b1f157ea8..99579f5d5 100644
--- a/CommandLine.h
+++ b/CommandLine.h
@@ -4,7 +4,7 @@
 htop - CommandLine.h
 (C) 2004-2011 Hisham H. Muhammad
 (C) 2020-2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Compat.c b/Compat.c
index 1077c08b2..2d06c4812 100644
--- a/Compat.c
+++ b/Compat.c
@@ -1,7 +1,7 @@
 /*
 htop - Compat.c
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Compat.h b/Compat.h
index 94c2ee2fc..2b5e20522 100644
--- a/Compat.h
+++ b/Compat.h
@@ -3,7 +3,7 @@
 /*
 htop - Compat.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/DateMeter.c b/DateMeter.c
index d01f464d4..96285963d 100644
--- a/DateMeter.c
+++ b/DateMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - DateMeter.c
 (C) 2004-2020 Hisham H. Muhammad, Michael Schönitzer
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/DateTimeMeter.c b/DateTimeMeter.c
index a042a61ad..1044ff39d 100644
--- a/DateTimeMeter.c
+++ b/DateTimeMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - DateTimeMeter.c
 (C) 2004-2020 Hisham H. Muhammad, Michael Schönitzer
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/DiskIOMeter.c b/DiskIOMeter.c
index 67122a155..c5f147683 100644
--- a/DiskIOMeter.c
+++ b/DiskIOMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - DiskIOMeter.c
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/DiskIOMeter.h b/DiskIOMeter.h
index 68ea638a9..3b03e321c 100644
--- a/DiskIOMeter.h
+++ b/DiskIOMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - DiskIOMeter.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/DisplayOptionsPanel.c b/DisplayOptionsPanel.c
index 7e05ae079..516fb5088 100644
--- a/DisplayOptionsPanel.c
+++ b/DisplayOptionsPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - DisplayOptionsPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/DisplayOptionsPanel.h b/DisplayOptionsPanel.h
index 745f125f3..5e87a63b9 100644
--- a/DisplayOptionsPanel.h
+++ b/DisplayOptionsPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - DisplayOptionsPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/DynamicColumn.c b/DynamicColumn.c
index c6a0cc033..bd038df4e 100644
--- a/DynamicColumn.c
+++ b/DynamicColumn.c
@@ -3,7 +3,7 @@ htop - DynamicColumn.c
 (C) 2021 Sohaib Mohammed
 (C) 2021 htop dev team
 (C) 2021 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/DynamicMeter.c b/DynamicMeter.c
index 16c27f836..a8cd76cc9 100644
--- a/DynamicMeter.c
+++ b/DynamicMeter.c
@@ -2,7 +2,7 @@
 htop - DynamicMeter.c
 (C) 2021 htop dev team
 (C) 2021 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/FunctionBar.c b/FunctionBar.c
index 1c260ab79..fc3304ae0 100644
--- a/FunctionBar.c
+++ b/FunctionBar.c
@@ -1,7 +1,7 @@
 /*
 htop - FunctionBar.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/FunctionBar.h b/FunctionBar.h
index 1f52658e7..ebe405f39 100644
--- a/FunctionBar.h
+++ b/FunctionBar.h
@@ -3,7 +3,7 @@
 /*
 htop - FunctionBar.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Hashtable.c b/Hashtable.c
index d040afa68..c880cf7f6 100644
--- a/Hashtable.c
+++ b/Hashtable.c
@@ -1,7 +1,7 @@
 /*
 htop - Hashtable.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Hashtable.h b/Hashtable.h
index d6b7be228..f51a29476 100644
--- a/Hashtable.h
+++ b/Hashtable.h
@@ -3,7 +3,7 @@
 /*
 htop - Hashtable.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Header.c b/Header.c
index 26cd92364..16525206e 100644
--- a/Header.c
+++ b/Header.c
@@ -1,7 +1,7 @@
 /*
 htop - Header.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Header.h b/Header.h
index 060ad02d1..954d434c3 100644
--- a/Header.h
+++ b/Header.h
@@ -3,7 +3,7 @@
 /*
 htop - Header.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/HeaderLayout.h b/HeaderLayout.h
index 7be236e61..46cca14f4 100644
--- a/HeaderLayout.h
+++ b/HeaderLayout.h
@@ -3,7 +3,7 @@
 /*
 htop - HeaderLayout.h
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/HeaderOptionsPanel.c b/HeaderOptionsPanel.c
index 701f6d600..d8148dfe7 100644
--- a/HeaderOptionsPanel.c
+++ b/HeaderOptionsPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - HeaderOptionsPanel.c
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/HeaderOptionsPanel.h b/HeaderOptionsPanel.h
index 0d15aceb5..aee93282b 100644
--- a/HeaderOptionsPanel.h
+++ b/HeaderOptionsPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - ColorsPanel.h
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/HostnameMeter.c b/HostnameMeter.c
index b1570c8c7..78444ea8d 100644
--- a/HostnameMeter.c
+++ b/HostnameMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - HostnameMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/HostnameMeter.h b/HostnameMeter.h
index 85d94d845..ec1b63a7f 100644
--- a/HostnameMeter.h
+++ b/HostnameMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - HostnameMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/IncSet.c b/IncSet.c
index 909741375..cee3565bf 100644
--- a/IncSet.c
+++ b/IncSet.c
@@ -1,7 +1,7 @@
 /*
 htop - IncSet.c
 (C) 2005-2012 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/IncSet.h b/IncSet.h
index e2062c6d9..a98e7f8d4 100644
--- a/IncSet.h
+++ b/IncSet.h
@@ -3,7 +3,7 @@
 /*
 htop - IncSet.h
 (C) 2005-2012 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ListItem.c b/ListItem.c
index e5464d27d..9161a1cce 100644
--- a/ListItem.c
+++ b/ListItem.c
@@ -1,7 +1,7 @@
 /*
 htop - ListItem.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ListItem.h b/ListItem.h
index 0bbca2f48..2c7ae4ea5 100644
--- a/ListItem.h
+++ b/ListItem.h
@@ -3,7 +3,7 @@
 /*
 htop - ListItem.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/LoadAverageMeter.c b/LoadAverageMeter.c
index bb3b05ed8..3fe3d9000 100644
--- a/LoadAverageMeter.c
+++ b/LoadAverageMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - LoadAverageMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/LoadAverageMeter.h b/LoadAverageMeter.h
index d575ad53e..a34a4a355 100644
--- a/LoadAverageMeter.h
+++ b/LoadAverageMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - LoadAverageMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/MainPanel.c b/MainPanel.c
index e7033bf45..e43610a31 100644
--- a/MainPanel.c
+++ b/MainPanel.c
@@ -2,7 +2,7 @@
 htop - ColumnsPanel.c
 (C) 2004-2015 Hisham H. Muhammad
 (C) 2020 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/MainPanel.h b/MainPanel.h
index 04f347d6e..04f4c0a89 100644
--- a/MainPanel.h
+++ b/MainPanel.h
@@ -4,7 +4,7 @@
 htop - ColumnsPanel.h
 (C) 2004-2015 Hisham H. Muhammad
 (C) 2020 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/MemoryMeter.c b/MemoryMeter.c
index 75ad7e8c4..4c6672d82 100644
--- a/MemoryMeter.c
+++ b/MemoryMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - MemoryMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/MemoryMeter.h b/MemoryMeter.h
index 6d7dd8257..d23021e90 100644
--- a/MemoryMeter.h
+++ b/MemoryMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - MemoryMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/MemorySwapMeter.c b/MemorySwapMeter.c
index 612549d12..46b2a6b73 100644
--- a/MemorySwapMeter.c
+++ b/MemorySwapMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - MemorySwapMeter.c
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/MemorySwapMeter.h b/MemorySwapMeter.h
index b4180a1e5..a98d5e6cb 100644
--- a/MemorySwapMeter.h
+++ b/MemorySwapMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - MemorySwapMeter.h
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Meter.c b/Meter.c
index 73e99ce50..8df851708 100644
--- a/Meter.c
+++ b/Meter.c
@@ -1,7 +1,7 @@
 /*
 htop - Meter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Meter.h b/Meter.h
index 0e6b3f9f6..be8207c73 100644
--- a/Meter.h
+++ b/Meter.h
@@ -3,7 +3,7 @@
 /*
 htop - Meter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/MetersPanel.c b/MetersPanel.c
index 13c102d18..1bdefdb3c 100644
--- a/MetersPanel.c
+++ b/MetersPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - MetersPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/MetersPanel.h b/MetersPanel.h
index cf4de6042..679c12d56 100644
--- a/MetersPanel.h
+++ b/MetersPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - MetersPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Object.c b/Object.c
index f3613949a..f00914809 100644
--- a/Object.c
+++ b/Object.c
@@ -2,7 +2,7 @@
 htop - Object.c
 (C) 2004-2012 Hisham H. Muhammad
 (C) 2020 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Object.h b/Object.h
index e18fb972b..d5b3bb39c 100644
--- a/Object.h
+++ b/Object.h
@@ -4,7 +4,7 @@
 htop - Object.h
 (C) 2004-2012 Hisham H. Muhammad
 (C) 2020 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/OpenFilesScreen.c b/OpenFilesScreen.c
index 75eb2d34a..e0bede0f7 100644
--- a/OpenFilesScreen.c
+++ b/OpenFilesScreen.c
@@ -1,7 +1,7 @@
 /*
 htop - OpenFilesScreen.c
 (C) 2005-2006 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/OpenFilesScreen.h b/OpenFilesScreen.h
index f3c129cc9..43f95ea3f 100644
--- a/OpenFilesScreen.h
+++ b/OpenFilesScreen.h
@@ -3,7 +3,7 @@
 /*
 htop - OpenFilesScreen.h
 (C) 2005-2006 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/OptionItem.c b/OptionItem.c
index 437f7ead0..7ab690021 100644
--- a/OptionItem.c
+++ b/OptionItem.c
@@ -1,7 +1,7 @@
 /*
 htop - OptionItem.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/OptionItem.h b/OptionItem.h
index 8dd802d9d..35c850621 100644
--- a/OptionItem.h
+++ b/OptionItem.h
@@ -3,7 +3,7 @@
 /*
 htop - OptionItem.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Panel.c b/Panel.c
index dea64019b..64e6d4e69 100644
--- a/Panel.c
+++ b/Panel.c
@@ -1,7 +1,7 @@
 /*
 htop - Panel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Panel.h b/Panel.h
index 41dba2166..cf110c901 100644
--- a/Panel.h
+++ b/Panel.h
@@ -3,7 +3,7 @@
 /*
 htop - Panel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Process.c b/Process.c
index 556acf420..70110a073 100644
--- a/Process.c
+++ b/Process.c
@@ -2,7 +2,7 @@
 htop - Process.c
 (C) 2004-2015 Hisham H. Muhammad
 (C) 2020 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Process.h b/Process.h
index 1ba36de32..4080d98c9 100644
--- a/Process.h
+++ b/Process.h
@@ -4,7 +4,7 @@
 htop - Process.h
 (C) 2004-2015 Hisham H. Muhammad
 (C) 2020 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ProcessList.c b/ProcessList.c
index daf871a75..1ce6b76de 100644
--- a/ProcessList.c
+++ b/ProcessList.c
@@ -1,7 +1,7 @@
 /*
 htop - ProcessList.c
 (C) 2004,2005 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ProcessList.h b/ProcessList.h
index 7cd2fab57..a12ffa130 100644
--- a/ProcessList.h
+++ b/ProcessList.h
@@ -3,7 +3,7 @@
 /*
 htop - ProcessList.h
 (C) 2004,2005 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ProcessLocksScreen.c b/ProcessLocksScreen.c
index 57596156f..b842d2b95 100644
--- a/ProcessLocksScreen.c
+++ b/ProcessLocksScreen.c
@@ -1,7 +1,7 @@
 /*
 htop - ProcessLocksScreen.c
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ProcessLocksScreen.h b/ProcessLocksScreen.h
index c84822860..cf34de4fe 100644
--- a/ProcessLocksScreen.h
+++ b/ProcessLocksScreen.h
@@ -3,7 +3,7 @@
 /*
 htop - ProcessLocksScreen.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ProvideCurses.h b/ProvideCurses.h
index 4eb08a24d..06602ff06 100644
--- a/ProvideCurses.h
+++ b/ProvideCurses.h
@@ -3,7 +3,7 @@
 /*
 htop - RichString.h
 (C) 2004,2011 Hisham H. Muhammad
-Released under the GNU GPL, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/RichString.c b/RichString.c
index 558c7430d..3dac08321 100644
--- a/RichString.c
+++ b/RichString.c
@@ -1,7 +1,7 @@
 /*
 htop - RichString.c
 (C) 2004,2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/RichString.h b/RichString.h
index 5c456d218..cbcbe48b7 100644
--- a/RichString.h
+++ b/RichString.h
@@ -3,7 +3,7 @@
 /*
 htop - RichString.h
 (C) 2004,2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ScreenManager.c b/ScreenManager.c
index 914c510b7..54dec6432 100644
--- a/ScreenManager.c
+++ b/ScreenManager.c
@@ -1,7 +1,7 @@
 /*
 htop - ScreenManager.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/ScreenManager.h b/ScreenManager.h
index bf55f17d5..455be7053 100644
--- a/ScreenManager.h
+++ b/ScreenManager.h
@@ -3,7 +3,7 @@
 /*
 htop - ScreenManager.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Settings.c b/Settings.c
index 5ca998ada..b91c12f72 100644
--- a/Settings.c
+++ b/Settings.c
@@ -1,7 +1,7 @@
 /*
 htop - Settings.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Settings.h b/Settings.h
index 20f583c35..f8caa31fa 100644
--- a/Settings.h
+++ b/Settings.h
@@ -3,7 +3,7 @@
 /*
 htop - Settings.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/SignalsPanel.c b/SignalsPanel.c
index 055e3e65a..f1c537955 100644
--- a/SignalsPanel.c
+++ b/SignalsPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - SignalsPanel.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/SignalsPanel.h b/SignalsPanel.h
index 0dfe24c92..da9711a19 100644
--- a/SignalsPanel.h
+++ b/SignalsPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - SignalsPanel.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/SwapMeter.c b/SwapMeter.c
index 63f58c5af..081967fe6 100644
--- a/SwapMeter.c
+++ b/SwapMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - SwapMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/SwapMeter.h b/SwapMeter.h
index 9c4e31225..485485a19 100644
--- a/SwapMeter.h
+++ b/SwapMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - SwapMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/SysArchMeter.c b/SysArchMeter.c
index 64b96c9d7..1985caaeb 100644
--- a/SysArchMeter.c
+++ b/SysArchMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - SysArchMeter.c
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/SysArchMeter.h b/SysArchMeter.h
index fa6adfe3c..50b386911 100644
--- a/SysArchMeter.h
+++ b/SysArchMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - SysArchMeter.h
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 #include "Meter.h"
diff --git a/TasksMeter.c b/TasksMeter.c
index 29d3dd1b3..64c9837c8 100644
--- a/TasksMeter.c
+++ b/TasksMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - TasksMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/TasksMeter.h b/TasksMeter.h
index 4ae6ce61c..9f9ba634d 100644
--- a/TasksMeter.h
+++ b/TasksMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - TasksMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/TraceScreen.c b/TraceScreen.c
index 93981c58b..c726394a4 100644
--- a/TraceScreen.c
+++ b/TraceScreen.c
@@ -1,7 +1,7 @@
 /*
 htop - TraceScreen.c
 (C) 2005-2006 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/TraceScreen.h b/TraceScreen.h
index fd34ceed7..7b2101e18 100644
--- a/TraceScreen.h
+++ b/TraceScreen.h
@@ -3,7 +3,7 @@
 /*
 htop - TraceScreen.h
 (C) 2005-2006 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/UptimeMeter.c b/UptimeMeter.c
index 9036e539a..d4b3175e1 100644
--- a/UptimeMeter.c
+++ b/UptimeMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - UptimeMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/UptimeMeter.h b/UptimeMeter.h
index 36a5d88ba..5a852adf0 100644
--- a/UptimeMeter.h
+++ b/UptimeMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - UptimeMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/UsersTable.c b/UsersTable.c
index fdbfd68fb..8c4a0ed0e 100644
--- a/UsersTable.c
+++ b/UsersTable.c
@@ -1,7 +1,7 @@
 /*
 htop - UsersTable.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/UsersTable.h b/UsersTable.h
index ef7d0bba4..ecfd2143f 100644
--- a/UsersTable.h
+++ b/UsersTable.h
@@ -3,7 +3,7 @@
 /*
 htop - UsersTable.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Vector.c b/Vector.c
index 40e6203f1..52ed44a7e 100644
--- a/Vector.c
+++ b/Vector.c
@@ -1,7 +1,7 @@
 /*
 htop - Vector.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/Vector.h b/Vector.h
index 5347ad786..0fdb70695 100644
--- a/Vector.h
+++ b/Vector.h
@@ -3,7 +3,7 @@
 /*
 htop - Vector.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/XUtils.c b/XUtils.c
index c589d780c..b6999f92d 100644
--- a/XUtils.c
+++ b/XUtils.c
@@ -1,7 +1,7 @@
 /*
 htop - StringUtils.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/XUtils.h b/XUtils.h
index 13f4be4b6..eeb214d1f 100644
--- a/XUtils.h
+++ b/XUtils.h
@@ -3,7 +3,7 @@
 /*
 htop - StringUtils.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/darwin/DarwinProcess.c b/darwin/DarwinProcess.c
index 20e91f77a..7a70f10f0 100644
--- a/darwin/DarwinProcess.c
+++ b/darwin/DarwinProcess.c
@@ -1,7 +1,7 @@
 /*
 htop - DarwinProcess.c
 (C) 2015 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/darwin/DarwinProcess.h b/darwin/DarwinProcess.h
index 0a49eea6a..5ff75fc2c 100644
--- a/darwin/DarwinProcess.h
+++ b/darwin/DarwinProcess.h
@@ -3,7 +3,7 @@
 /*
 htop - DarwinProcess.h
 (C) 2015 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/darwin/DarwinProcessList.c b/darwin/DarwinProcessList.c
index 7dd86ff58..a7db0e43c 100644
--- a/darwin/DarwinProcessList.c
+++ b/darwin/DarwinProcessList.c
@@ -1,7 +1,7 @@
 /*
 htop - DarwinProcessList.c
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/darwin/DarwinProcessList.h b/darwin/DarwinProcessList.h
index af1140b3b..393e65674 100644
--- a/darwin/DarwinProcessList.h
+++ b/darwin/DarwinProcessList.h
@@ -3,7 +3,7 @@
 /*
 htop - DarwinProcessList.h
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/darwin/Platform.c b/darwin/Platform.c
index 93262bb69..4df11b2d5 100644
--- a/darwin/Platform.c
+++ b/darwin/Platform.c
@@ -2,7 +2,7 @@
 htop - darwin/Platform.c
 (C) 2014 Hisham H. Muhammad
 (C) 2015 David C. Hunt
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/darwin/Platform.h b/darwin/Platform.h
index e7647dbc3..c03a9b453 100644
--- a/darwin/Platform.h
+++ b/darwin/Platform.h
@@ -4,7 +4,7 @@
 htop - darwin/Platform.h
 (C) 2014 Hisham H. Muhammad
 (C) 2015 David C. Hunt
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/darwin/ProcessField.h b/darwin/ProcessField.h
index 25dbb450e..05fbc3ba6 100644
--- a/darwin/ProcessField.h
+++ b/darwin/ProcessField.h
@@ -3,7 +3,7 @@
 /*
 htop - darwin/ProcessField.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/dragonflybsd/DragonFlyBSDProcess.c b/dragonflybsd/DragonFlyBSDProcess.c
index 13cef0af1..a091cc6ad 100644
--- a/dragonflybsd/DragonFlyBSDProcess.c
+++ b/dragonflybsd/DragonFlyBSDProcess.c
@@ -2,7 +2,7 @@
 htop - dragonflybsd/DragonFlyBSDProcess.c
 (C) 2015 Hisham H. Muhammad
 (C) 2017 Diederik de Groot
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/dragonflybsd/DragonFlyBSDProcess.h b/dragonflybsd/DragonFlyBSDProcess.h
index 22cf97595..e0a77ef17 100644
--- a/dragonflybsd/DragonFlyBSDProcess.h
+++ b/dragonflybsd/DragonFlyBSDProcess.h
@@ -4,7 +4,7 @@
 htop - dragonflybsd/DragonFlyBSDProcess.h
 (C) 2015 Hisham H. Muhammad
 (C) 2017 Diederik de Groot
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/dragonflybsd/DragonFlyBSDProcessList.c b/dragonflybsd/DragonFlyBSDProcessList.c
index 08e3d7b67..721fc1796 100644
--- a/dragonflybsd/DragonFlyBSDProcessList.c
+++ b/dragonflybsd/DragonFlyBSDProcessList.c
@@ -2,7 +2,7 @@
 htop - DragonFlyBSDProcessList.c
 (C) 2014 Hisham H. Muhammad
 (C) 2017 Diederik de Groot
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/dragonflybsd/DragonFlyBSDProcessList.h b/dragonflybsd/DragonFlyBSDProcessList.h
index 8a5b31c69..c1bf2d19c 100644
--- a/dragonflybsd/DragonFlyBSDProcessList.h
+++ b/dragonflybsd/DragonFlyBSDProcessList.h
@@ -4,7 +4,7 @@
 htop - DragonFlyBSDProcessList.h
 (C) 2014 Hisham H. Muhammad
 (C) 2017 Diederik de Groot
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/dragonflybsd/Platform.c b/dragonflybsd/Platform.c
index 62a1fb62c..bb603cb7a 100644
--- a/dragonflybsd/Platform.c
+++ b/dragonflybsd/Platform.c
@@ -2,7 +2,7 @@
 htop - dragonflybsd/Platform.c
 (C) 2014 Hisham H. Muhammad
 (C) 2017 Diederik de Groot
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/dragonflybsd/Platform.h b/dragonflybsd/Platform.h
index 48ed1e937..f3f2ec5cd 100644
--- a/dragonflybsd/Platform.h
+++ b/dragonflybsd/Platform.h
@@ -4,7 +4,7 @@
 htop - dragonflybsd/Platform.h
 (C) 2014 Hisham H. Muhammad
 (C) 2017 Diederik de Groot
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/dragonflybsd/ProcessField.h b/dragonflybsd/ProcessField.h
index 03dfc14f4..02b556859 100644
--- a/dragonflybsd/ProcessField.h
+++ b/dragonflybsd/ProcessField.h
@@ -3,7 +3,7 @@
 /*
 htop - dragonflybsd/ProcessField.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/freebsd/FreeBSDProcess.c b/freebsd/FreeBSDProcess.c
index 9f0386b5e..3fa55ae5b 100644
--- a/freebsd/FreeBSDProcess.c
+++ b/freebsd/FreeBSDProcess.c
@@ -1,7 +1,7 @@
 /*
 htop - FreeBSDProcess.c
 (C) 2015 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/freebsd/FreeBSDProcess.h b/freebsd/FreeBSDProcess.h
index 0e0bd59fd..2443f8955 100644
--- a/freebsd/FreeBSDProcess.h
+++ b/freebsd/FreeBSDProcess.h
@@ -3,7 +3,7 @@
 /*
 htop - FreeBSDProcess.h
 (C) 2015 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/freebsd/FreeBSDProcessList.c b/freebsd/FreeBSDProcessList.c
index 48c0648d0..3067a88fa 100644
--- a/freebsd/FreeBSDProcessList.c
+++ b/freebsd/FreeBSDProcessList.c
@@ -1,7 +1,7 @@
 /*
 htop - FreeBSDProcessList.c
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/freebsd/FreeBSDProcessList.h b/freebsd/FreeBSDProcessList.h
index ae8220557..adc70e4f5 100644
--- a/freebsd/FreeBSDProcessList.h
+++ b/freebsd/FreeBSDProcessList.h
@@ -3,7 +3,7 @@
 /*
 htop - FreeBSDProcessList.h
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/freebsd/Platform.c b/freebsd/Platform.c
index 527a455e5..a3f58fdd4 100644
--- a/freebsd/Platform.c
+++ b/freebsd/Platform.c
@@ -1,7 +1,7 @@
 /*
 htop - freebsd/Platform.c
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/freebsd/Platform.h b/freebsd/Platform.h
index e7e274cd1..e99232e9b 100644
--- a/freebsd/Platform.h
+++ b/freebsd/Platform.h
@@ -3,7 +3,7 @@
 /*
 htop - freebsd/Platform.h
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/freebsd/ProcessField.h b/freebsd/ProcessField.h
index 6fba6bcfe..8ed2746e6 100644
--- a/freebsd/ProcessField.h
+++ b/freebsd/ProcessField.h
@@ -3,7 +3,7 @@
 /*
 htop - freebsd/ProcessField.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/generic/gettime.c b/generic/gettime.c
index af06ef349..975457fe7 100644
--- a/generic/gettime.c
+++ b/generic/gettime.c
@@ -1,7 +1,7 @@
 /*
 htop - generic/gettime.c
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 #include "config.h"  // IWYU pragma: keep
diff --git a/generic/gettime.h b/generic/gettime.h
index c124d0358..91fe43d99 100644
--- a/generic/gettime.h
+++ b/generic/gettime.h
@@ -3,7 +3,7 @@
 /*
 htop - generic/gettime.h
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/generic/hostname.c b/generic/hostname.c
index 2e3d5c31c..69a414687 100644
--- a/generic/hostname.c
+++ b/generic/hostname.c
@@ -1,7 +1,7 @@
 /*
 htop - generic/hostname.c
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 #include "config.h"  // IWYU pragma: keep
diff --git a/generic/hostname.h b/generic/hostname.h
index 32f0c4615..1e6c52dbc 100644
--- a/generic/hostname.h
+++ b/generic/hostname.h
@@ -3,7 +3,7 @@
 /*
 htop - generic/hostname.h
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/generic/openzfs_sysctl.c b/generic/openzfs_sysctl.c
index c7d79bcf7..d088da78f 100644
--- a/generic/openzfs_sysctl.c
+++ b/generic/openzfs_sysctl.c
@@ -1,7 +1,7 @@
 /*
 htop - generic/openzfs_sysctl.c
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/generic/openzfs_sysctl.h b/generic/openzfs_sysctl.h
index dab130512..27fa7204a 100644
--- a/generic/openzfs_sysctl.h
+++ b/generic/openzfs_sysctl.h
@@ -3,7 +3,7 @@
 /*
 htop - generic/openzfs_sysctl.h
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/generic/uname.c b/generic/uname.c
index 9263d828f..21f9a3cc0 100644
--- a/generic/uname.c
+++ b/generic/uname.c
@@ -1,7 +1,7 @@
 /*
 htop - generic/uname.c
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 #include "config.h"  // IWYU pragma: keep
diff --git a/generic/uname.h b/generic/uname.h
index 820d08575..940d64c3a 100644
--- a/generic/uname.h
+++ b/generic/uname.h
@@ -3,7 +3,7 @@
 /*
 htop - generic/uname.h
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/htop.c b/htop.c
index 426b59af1..6b9ea48a2 100644
--- a/htop.c
+++ b/htop.c
@@ -2,7 +2,7 @@
 htop - htop.c
 (C) 2004-2011 Hisham H. Muhammad
 (C) 2020-2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/HugePageMeter.c b/linux/HugePageMeter.c
index 8c637fdfc..1efde2f2f 100644
--- a/linux/HugePageMeter.c
+++ b/linux/HugePageMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - HugePageMeter.c
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/HugePageMeter.h b/linux/HugePageMeter.h
index e3b867d10..d74a19e62 100644
--- a/linux/HugePageMeter.h
+++ b/linux/HugePageMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - HugePageMeter.h
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/IOPriority.h b/linux/IOPriority.h
index 2b37cb0d5..78bc4701e 100644
--- a/linux/IOPriority.h
+++ b/linux/IOPriority.h
@@ -3,7 +3,7 @@
 /*
 htop - IOPriority.h
 (C) 2004-2012 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 
 Based on ionice,
diff --git a/linux/IOPriorityPanel.c b/linux/IOPriorityPanel.c
index 1bcbf4ba6..3e91bc4d1 100644
--- a/linux/IOPriorityPanel.c
+++ b/linux/IOPriorityPanel.c
@@ -1,7 +1,7 @@
 /*
 htop - IOPriorityPanel.c
 (C) 2004-2012 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/IOPriorityPanel.h b/linux/IOPriorityPanel.h
index 3aa761010..cb5b338f3 100644
--- a/linux/IOPriorityPanel.h
+++ b/linux/IOPriorityPanel.h
@@ -3,7 +3,7 @@
 /*
 htop - IOPriorityPanel.h
 (C) 2004-2012 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/LinuxProcess.c b/linux/LinuxProcess.c
index 75638e49a..49ae541d4 100644
--- a/linux/LinuxProcess.c
+++ b/linux/LinuxProcess.c
@@ -2,7 +2,7 @@
 htop - LinuxProcess.c
 (C) 2014 Hisham H. Muhammad
 (C) 2020 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/LinuxProcess.h b/linux/LinuxProcess.h
index 20399d98a..577b903da 100644
--- a/linux/LinuxProcess.h
+++ b/linux/LinuxProcess.h
@@ -4,7 +4,7 @@
 htop - LinuxProcess.h
 (C) 2014 Hisham H. Muhammad
 (C) 2020 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/LinuxProcessList.c b/linux/LinuxProcessList.c
index 8d82b00c1..0baf0bb0b 100644
--- a/linux/LinuxProcessList.c
+++ b/linux/LinuxProcessList.c
@@ -1,7 +1,7 @@
 /*
 htop - LinuxProcessList.c
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/LinuxProcessList.h b/linux/LinuxProcessList.h
index a5640e2b7..6c2f7dbe3 100644
--- a/linux/LinuxProcessList.h
+++ b/linux/LinuxProcessList.h
@@ -3,7 +3,7 @@
 /*
 htop - LinuxProcessList.h
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/Platform.c b/linux/Platform.c
index 05023d50e..4cd515543 100644
--- a/linux/Platform.c
+++ b/linux/Platform.c
@@ -1,7 +1,7 @@
 /*
 htop - linux/Platform.c
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/Platform.h b/linux/Platform.h
index 0d6d4a975..9c4e65d4b 100644
--- a/linux/Platform.h
+++ b/linux/Platform.h
@@ -3,7 +3,7 @@
 /*
 htop - linux/Platform.h
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/PressureStallMeter.c b/linux/PressureStallMeter.c
index ff34f9b16..e5089fcc4 100644
--- a/linux/PressureStallMeter.c
+++ b/linux/PressureStallMeter.c
@@ -2,7 +2,7 @@
 htop - PressureStallMeter.c
 (C) 2004-2011 Hisham H. Muhammad
 (C) 2019 Ran Benita
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/PressureStallMeter.h b/linux/PressureStallMeter.h
index 7317b350e..8acf46bca 100644
--- a/linux/PressureStallMeter.h
+++ b/linux/PressureStallMeter.h
@@ -6,7 +6,7 @@
 htop - PressureStallMeter.h
 (C) 2004-2011 Hisham H. Muhammad
 (C) 2019 Ran Benita
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/ProcessField.h b/linux/ProcessField.h
index 69bdff0b5..70475929c 100644
--- a/linux/ProcessField.h
+++ b/linux/ProcessField.h
@@ -3,7 +3,7 @@
 /*
 htop - linux/ProcessField.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/SELinuxMeter.c b/linux/SELinuxMeter.c
index e3b076d3d..c35cb686f 100644
--- a/linux/SELinuxMeter.c
+++ b/linux/SELinuxMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - SELinuxMeter.c
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/SELinuxMeter.h b/linux/SELinuxMeter.h
index 453940c01..d8a04db95 100644
--- a/linux/SELinuxMeter.h
+++ b/linux/SELinuxMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - SELinuxMeter.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/SystemdMeter.c b/linux/SystemdMeter.c
index 245bb7b28..567cfc7c9 100644
--- a/linux/SystemdMeter.c
+++ b/linux/SystemdMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - SystemdMeter.c
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/linux/SystemdMeter.h b/linux/SystemdMeter.h
index 98ce6f76a..a05e0872d 100644
--- a/linux/SystemdMeter.h
+++ b/linux/SystemdMeter.h
@@ -4,7 +4,7 @@
 /*
 htop - SystemdMeter.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/netbsd/NetBSDProcess.c b/netbsd/NetBSDProcess.c
index 2573d0614..1597ed334 100644
--- a/netbsd/NetBSDProcess.c
+++ b/netbsd/NetBSDProcess.c
@@ -4,7 +4,7 @@ htop - NetBSDProcess.c
 (C) 2015 Michael McConville
 (C) 2021 Santhosh Raju
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/netbsd/NetBSDProcess.h b/netbsd/NetBSDProcess.h
index a2647497f..b9e6b26a9 100644
--- a/netbsd/NetBSDProcess.h
+++ b/netbsd/NetBSDProcess.h
@@ -6,7 +6,7 @@ htop - NetBSDProcess.h
 (C) 2015 Michael McConville
 (C) 2021 Santhosh Raju
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/netbsd/NetBSDProcessList.c b/netbsd/NetBSDProcessList.c
index 845205053..8e8aabb13 100644
--- a/netbsd/NetBSDProcessList.c
+++ b/netbsd/NetBSDProcessList.c
@@ -4,7 +4,7 @@ htop - NetBSDProcessList.c
 (C) 2015 Michael McConville
 (C) 2021 Santhosh Raju
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/netbsd/NetBSDProcessList.h b/netbsd/NetBSDProcessList.h
index 7000bd672..d228f4879 100644
--- a/netbsd/NetBSDProcessList.h
+++ b/netbsd/NetBSDProcessList.h
@@ -6,7 +6,7 @@ htop - NetBSDProcessList.h
 (C) 2015 Michael McConville
 (C) 2021 Santhosh Raju
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/netbsd/Platform.c b/netbsd/Platform.c
index 62d90edd5..ac8146421 100644
--- a/netbsd/Platform.c
+++ b/netbsd/Platform.c
@@ -5,7 +5,7 @@ htop - netbsd/Platform.c
 (C) 2021 Santhosh Raju
 (C) 2021 Nia Alarie
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/netbsd/Platform.h b/netbsd/Platform.h
index 0420ad135..1d1115e71 100644
--- a/netbsd/Platform.h
+++ b/netbsd/Platform.h
@@ -6,7 +6,7 @@ htop - netbsd/Platform.h
 (C) 2015 Michael McConville
 (C) 2021 Santhosh Raju
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/netbsd/ProcessField.h b/netbsd/ProcessField.h
index 61e6ca14d..87d4a696d 100644
--- a/netbsd/ProcessField.h
+++ b/netbsd/ProcessField.h
@@ -3,7 +3,7 @@
 /*
 htop - netbsd/ProcessField.h
 (C) 2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/openbsd/OpenBSDProcess.c b/openbsd/OpenBSDProcess.c
index 90994a703..52dcb0e6f 100644
--- a/openbsd/OpenBSDProcess.c
+++ b/openbsd/OpenBSDProcess.c
@@ -2,7 +2,7 @@
 htop - OpenBSDProcess.c
 (C) 2015 Hisham H. Muhammad
 (C) 2015 Michael McConville
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/openbsd/OpenBSDProcess.h b/openbsd/OpenBSDProcess.h
index ce078a036..898c53774 100644
--- a/openbsd/OpenBSDProcess.h
+++ b/openbsd/OpenBSDProcess.h
@@ -4,7 +4,7 @@
 htop - OpenBSDProcess.h
 (C) 2015 Hisham H. Muhammad
 (C) 2015 Michael McConville
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/openbsd/OpenBSDProcessList.c b/openbsd/OpenBSDProcessList.c
index cb4739564..a89303acd 100644
--- a/openbsd/OpenBSDProcessList.c
+++ b/openbsd/OpenBSDProcessList.c
@@ -2,7 +2,7 @@
 htop - OpenBSDProcessList.c
 (C) 2014 Hisham H. Muhammad
 (C) 2015 Michael McConville
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/openbsd/OpenBSDProcessList.h b/openbsd/OpenBSDProcessList.h
index 524570514..89fdb0998 100644
--- a/openbsd/OpenBSDProcessList.h
+++ b/openbsd/OpenBSDProcessList.h
@@ -4,7 +4,7 @@
 htop - OpenBSDProcessList.h
 (C) 2014 Hisham H. Muhammad
 (C) 2015 Michael McConville
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/openbsd/Platform.c b/openbsd/Platform.c
index a62381f0f..b941ba757 100644
--- a/openbsd/Platform.c
+++ b/openbsd/Platform.c
@@ -2,7 +2,7 @@
 htop - openbsd/Platform.c
 (C) 2014 Hisham H. Muhammad
 (C) 2015 Michael McConville
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/openbsd/Platform.h b/openbsd/Platform.h
index bf43ae5ff..b6823b50e 100644
--- a/openbsd/Platform.h
+++ b/openbsd/Platform.h
@@ -4,7 +4,7 @@
 htop - openbsd/Platform.h
 (C) 2014 Hisham H. Muhammad
 (C) 2015 Michael McConville
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/openbsd/ProcessField.h b/openbsd/ProcessField.h
index be4e51e76..b8e8d6b1a 100644
--- a/openbsd/ProcessField.h
+++ b/openbsd/ProcessField.h
@@ -3,7 +3,7 @@
 /*
 htop - openbsd/ProcessField.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp-htop.c b/pcp-htop.c
index 855bb3f90..2713c896c 100644
--- a/pcp-htop.c
+++ b/pcp-htop.c
@@ -2,7 +2,7 @@
 htop - pcp-htop.c
 (C) 2004-2011 Hisham H. Muhammad
 (C) 2020-2021 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp/PCPDynamicColumn.c b/pcp/PCPDynamicColumn.c
index 29dc9f91f..aab25253c 100644
--- a/pcp/PCPDynamicColumn.c
+++ b/pcp/PCPDynamicColumn.c
@@ -3,7 +3,7 @@ htop - PCPDynamicColumn.c
 (C) 2021 Sohaib Mohammed
 (C) 2021 htop dev team
 (C) 2021 Red Hat, Inc.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp/PCPDynamicMeter.c b/pcp/PCPDynamicMeter.c
index ccea81345..7c55e4bfe 100644
--- a/pcp/PCPDynamicMeter.c
+++ b/pcp/PCPDynamicMeter.c
@@ -2,7 +2,7 @@
 htop - PCPDynamicMeter.c
 (C) 2021 htop dev team
 (C) 2021 Red Hat, Inc.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 #include "config.h" // IWYU pragma: keep
diff --git a/pcp/PCPMetric.c b/pcp/PCPMetric.c
index c8cfe716a..d1afc8014 100644
--- a/pcp/PCPMetric.c
+++ b/pcp/PCPMetric.c
@@ -2,7 +2,7 @@
 htop - PCPMetric.c
 (C) 2020-2021 htop dev team
 (C) 2020-2021 Red Hat, Inc.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp/PCPMetric.h b/pcp/PCPMetric.h
index 7d6250353..aa0e2a7aa 100644
--- a/pcp/PCPMetric.h
+++ b/pcp/PCPMetric.h
@@ -4,7 +4,7 @@
 htop - PCPMetric.h
 (C) 2020-2021 htop dev team
 (C) 2020-2021 Red Hat, Inc.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp/PCPProcess.c b/pcp/PCPProcess.c
index fa61506fc..a983a968b 100644
--- a/pcp/PCPProcess.c
+++ b/pcp/PCPProcess.c
@@ -3,7 +3,7 @@ htop - PCPProcess.c
 (C) 2014 Hisham H. Muhammad
 (C) 2020-2021 htop dev team
 (C) 2020-2021 Red Hat, Inc.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp/PCPProcess.h b/pcp/PCPProcess.h
index e8440971e..46ba07fee 100644
--- a/pcp/PCPProcess.h
+++ b/pcp/PCPProcess.h
@@ -5,7 +5,7 @@ htop - PCPProcess.h
 (C) 2014 Hisham H. Muhammad
 (C) 2020 htop dev team
 (C) 2020-2021 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp/PCPProcessList.c b/pcp/PCPProcessList.c
index b55b5a42e..e324e3378 100644
--- a/pcp/PCPProcessList.c
+++ b/pcp/PCPProcessList.c
@@ -3,7 +3,7 @@ htop - PCPProcessList.c
 (C) 2014 Hisham H. Muhammad
 (C) 2020-2021 htop dev team
 (C) 2020-2021 Red Hat, Inc.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp/PCPProcessList.h b/pcp/PCPProcessList.h
index 07f6c3990..a3a7372af 100644
--- a/pcp/PCPProcessList.h
+++ b/pcp/PCPProcessList.h
@@ -3,7 +3,7 @@
 /*
 htop - PCPProcessList.h
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp/Platform.c b/pcp/Platform.c
index 29055b997..cd7b1f487 100644
--- a/pcp/Platform.c
+++ b/pcp/Platform.c
@@ -3,7 +3,7 @@ htop - linux/Platform.c
 (C) 2014 Hisham H. Muhammad
 (C) 2020-2021 htop dev team
 (C) 2020-2021 Red Hat, Inc.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp/Platform.h b/pcp/Platform.h
index 14e574697..37a879961 100644
--- a/pcp/Platform.h
+++ b/pcp/Platform.h
@@ -5,7 +5,7 @@ htop - pcp/Platform.h
 (C) 2014 Hisham H. Muhammad
 (C) 2020-2021 htop dev team
 (C) 2020-2021 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/pcp/ProcessField.h b/pcp/ProcessField.h
index 979addc08..b3ba2657a 100644
--- a/pcp/ProcessField.h
+++ b/pcp/ProcessField.h
@@ -5,7 +5,7 @@ htop - pcp/ProcessField.h
 (C) 2014 Hisham H. Muhammad
 (C) 2021 htop dev team
 (C) 2020-2021 Red Hat, Inc.  All Rights Reserved.
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/solaris/Platform.c b/solaris/Platform.c
index 743919599..eabbab592 100644
--- a/solaris/Platform.c
+++ b/solaris/Platform.c
@@ -3,7 +3,7 @@ htop - solaris/Platform.c
 (C) 2014 Hisham H. Muhammad
 (C) 2015 David C. Hunt
 (C) 2017,2018 Guy M. Broome
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/solaris/Platform.h b/solaris/Platform.h
index 0a379a19c..a60b97843 100644
--- a/solaris/Platform.h
+++ b/solaris/Platform.h
@@ -5,7 +5,7 @@ htop - solaris/Platform.h
 (C) 2014 Hisham H. Muhammad
 (C) 2015 David C. Hunt
 (C) 2017,2018 Guy M. Broome
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/solaris/ProcessField.h b/solaris/ProcessField.h
index 727c641f8..65dbcdcde 100644
--- a/solaris/ProcessField.h
+++ b/solaris/ProcessField.h
@@ -3,7 +3,7 @@
 /*
 htop - solaris/ProcessField.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/solaris/SolarisProcess.c b/solaris/SolarisProcess.c
index 57071ab05..c1f49585f 100644
--- a/solaris/SolarisProcess.c
+++ b/solaris/SolarisProcess.c
@@ -2,7 +2,7 @@
 htop - SolarisProcess.c
 (C) 2015 Hisham H. Muhammad
 (C) 2017,2018 Guy M. Broome
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/solaris/SolarisProcess.h b/solaris/SolarisProcess.h
index 0fd458dce..13a2bc1fc 100644
--- a/solaris/SolarisProcess.h
+++ b/solaris/SolarisProcess.h
@@ -4,7 +4,7 @@
 htop - SolarisProcess.h
 (C) 2015 Hisham H. Muhammad
 (C) 2017,2018 Guy M. Broome
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/solaris/SolarisProcessList.c b/solaris/SolarisProcessList.c
index 45bc5ba3a..33c647778 100644
--- a/solaris/SolarisProcessList.c
+++ b/solaris/SolarisProcessList.c
@@ -2,7 +2,7 @@
 htop - SolarisProcessList.c
 (C) 2014 Hisham H. Muhammad
 (C) 2017,2018 Guy M. Broome
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/solaris/SolarisProcessList.h b/solaris/SolarisProcessList.h
index f653b7cf5..91fd4f413 100644
--- a/solaris/SolarisProcessList.h
+++ b/solaris/SolarisProcessList.h
@@ -4,7 +4,7 @@
 htop - SolarisProcessList.h
 (C) 2014 Hisham H. Muhammad
 (C) 2017,2018 Guy M. Broome
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/unsupported/Platform.c b/unsupported/Platform.c
index 6fbe518dc..9be56ea63 100644
--- a/unsupported/Platform.c
+++ b/unsupported/Platform.c
@@ -2,7 +2,7 @@
 htop - unsupported/Platform.c
 (C) 2014 Hisham H. Muhammad
 (C) 2015 David C. Hunt
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/unsupported/Platform.h b/unsupported/Platform.h
index cdf1d0f84..ace7aae1b 100644
--- a/unsupported/Platform.h
+++ b/unsupported/Platform.h
@@ -4,7 +4,7 @@
 htop - unsupported/Platform.h
 (C) 2014 Hisham H. Muhammad
 (C) 2015 David C. Hunt
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/unsupported/ProcessField.h b/unsupported/ProcessField.h
index 8c07107d5..0c908ea9f 100644
--- a/unsupported/ProcessField.h
+++ b/unsupported/ProcessField.h
@@ -3,7 +3,7 @@
 /*
 htop - unsupported/ProcessField.h
 (C) 2020 htop dev team
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/unsupported/UnsupportedProcess.c b/unsupported/UnsupportedProcess.c
index 1b9159b3c..af88a3e2a 100644
--- a/unsupported/UnsupportedProcess.c
+++ b/unsupported/UnsupportedProcess.c
@@ -1,7 +1,7 @@
 /*
 htop - UnsupportedProcess.c
 (C) 2015 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/unsupported/UnsupportedProcess.h b/unsupported/UnsupportedProcess.h
index f39a3fbc9..e30169c5d 100644
--- a/unsupported/UnsupportedProcess.h
+++ b/unsupported/UnsupportedProcess.h
@@ -3,7 +3,7 @@
 /*
 htop - UnsupportedProcess.h
 (C) 2015 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/unsupported/UnsupportedProcessList.c b/unsupported/UnsupportedProcessList.c
index 0486e49f0..470c65b76 100644
--- a/unsupported/UnsupportedProcessList.c
+++ b/unsupported/UnsupportedProcessList.c
@@ -1,7 +1,7 @@
 /*
 htop - UnsupportedProcessList.c
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/unsupported/UnsupportedProcessList.h b/unsupported/UnsupportedProcessList.h
index 08dae0c78..cbf25afa5 100644
--- a/unsupported/UnsupportedProcessList.h
+++ b/unsupported/UnsupportedProcessList.h
@@ -3,7 +3,7 @@
 /*
 htop - UnsupportedProcessList.h
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/zfs/ZfsArcMeter.c b/zfs/ZfsArcMeter.c
index 7653a3515..f124272f6 100644
--- a/zfs/ZfsArcMeter.c
+++ b/zfs/ZfsArcMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - ZfsArcMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/zfs/ZfsArcMeter.h b/zfs/ZfsArcMeter.h
index 19a04542a..3f6ea5ad8 100644
--- a/zfs/ZfsArcMeter.h
+++ b/zfs/ZfsArcMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - ZfsArcMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/zfs/ZfsArcStats.h b/zfs/ZfsArcStats.h
index d891dc2fa..e2cb4117d 100644
--- a/zfs/ZfsArcStats.h
+++ b/zfs/ZfsArcStats.h
@@ -3,7 +3,7 @@
 /*
 htop - ZfsArcStats.h
 (C) 2014 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/zfs/ZfsCompressedArcMeter.c b/zfs/ZfsCompressedArcMeter.c
index 29ac3c44d..2e494736d 100644
--- a/zfs/ZfsCompressedArcMeter.c
+++ b/zfs/ZfsCompressedArcMeter.c
@@ -1,7 +1,7 @@
 /*
 htop - ZfsCompressedArcMeter.c
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
diff --git a/zfs/ZfsCompressedArcMeter.h b/zfs/ZfsCompressedArcMeter.h
index 9a5343035..6e2f45fba 100644
--- a/zfs/ZfsCompressedArcMeter.h
+++ b/zfs/ZfsCompressedArcMeter.h
@@ -3,7 +3,7 @@
 /*
 htop - ZfsCompressedArcMeter.h
 (C) 2004-2011 Hisham H. Muhammad
-Released under the GNU GPLv2, see the COPYING file
+Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */