diff --git a/12-Home computer/changelog-64k.txt b/12-Home computer/changelog-64k.txt
index 0d1e9c4..caa84ce 100644
--- a/12-Home computer/changelog-64k.txt	
+++ b/12-Home computer/changelog-64k.txt	
@@ -8,7 +8,13 @@ The following file reports the changelog of the firmware developed by Leonardo M
 for the LM80C 64K Color Computer. More info at www DOT leonardomiliani DOT com
 
 P.S.: for the changelog of the LM80C Color Computer see the corresponding changelog file
-P.S.: for the changelog of the LM80C DOS see the corresponding changelog files
+
+---------------------------------------------------------------------------------------------
+1.13    - 20210316
+
+- SAVE now can be used to change the name to a file, too;
+- disk access speeded up by using OTIR & INIR statements;
+- code size optimization.
 
 ---------------------------------------------------------------------------------------------
 1.12    - 20210310
diff --git a/12-Home computer/changelog-dos.txt b/12-Home computer/changelog-dos.txt
deleted file mode 100644
index 61e1864..0000000
--- a/12-Home computer/changelog-dos.txt	
+++ /dev/null
@@ -1,39 +0,0 @@
----------------------------------------------------------------------------------------------
-
-                                 LM80C DOS - Changelog
-
----------------------------------------------------------------------------------------------
-
-The following file reports the changelog of the LM80C DOS developed by Leonardo Miliani
-for the LM80C Color Computer series. More info at www DOT leonardomiliani DOT com
-
-P.S.: for the changelog of the LM80C firmwares see the corresponding changelog files
-
----------------------------------------------------------------------------------------------
-1.03    - 20210316
-
-- SAVE now can be used to change the name to a file, too;
-- disk access speeded up by using OTIR & INIR statements;
-- code size optimization.
-
----------------------------------------------------------------------------------------------
-1.02    - 20210310
-
-- Code size optimization; new "undelete file" feature for DISK
-
----------------------------------------------------------------------------------------------
-1.01    - 20210309
-
-- Better error managemenet for LM80C DOS routines;
-- full erase mode for ERASE, to wipe out the file data & entry;
-- code cleaning and optimizations for LM80C DOS.
-
----------------------------------------------------------------------------------------------
-1.00    - 20210307
-
-- Introduction of LM80C DOS with ability to access a Compact Flash memory card to be used
-  ad a mass storage device;
-- new commands: DISK, to format/rename the disk or rewrite the Master Sector; FILES, to list
-  files stored on disk; LOAD, to load a BASIC program, a binary file, or a single disk sector;
-  SAVE, to save a BASIC program, a binary file, or some data into a disk sector; ERASE, to 
-  erase a file.
\ No newline at end of file
diff --git a/12-Home computer/changelog.txt b/12-Home computer/changelog.txt
index b41a0c5..407d76e 100644
--- a/12-Home computer/changelog.txt	
+++ b/12-Home computer/changelog.txt	
@@ -8,13 +8,14 @@ The following file reports the changelog of the LM80C firmware developed by Leon
 for the LM80C Color Computer. More info at www DOT leonardomiliani DOT com
 
 P.S.: for the changelog of the LM80C 64K Color Computer see the corresponding changelog file
-P.S.: for the changelog of the LM80C DOS see the corresponding changelog files
 
 ---------------------------------------------------------------------------------------------
 3.23    - 20210316
 
 - New LM80C DOS 1.03;
-- SAVE features expanded to add file renaming
+- SAVE now can be used to change the name to a file, too;
+- disk access speeded up by using OTIR & INIR statements;
+- code size optimization.
 
 ---------------------------------------------------------------------------------------------
 3.22    - 20210310