diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-baremetal/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-baremetal/main.c
index a6c524be47..fced8f1e9f 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-baremetal/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-baremetal/main.c
@@ -12,13 +12,14 @@ uint64_t mg_millis(void) {          // Let Mongoose use our uptime function
   return (uint64_t) HAL_GetTick();  // Return number of milliseconds since boot
 }
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   extern RNG_HandleTypeDef hrng;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void timer_fn(void *arg) {
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos-lwip/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos-lwip/main.c
index 89a4e842fa..cf0db6c601 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos-lwip/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos-lwip/main.c
@@ -21,13 +21,14 @@ void SysTick_Handler (void) {
     xPortSysTickHandler();
 }
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   extern RNG_HandleTypeDef hrng;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void server(void *args) {
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos-tcp/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos-tcp/main.c
index 4dc46eee8f..125653cadb 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos-tcp/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos-tcp/main.c
@@ -18,12 +18,13 @@ void SysTick_Handler (void) {
     xPortSysTickHandler();
 }
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void server(void *args) {
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos/main.c
index 577ec6dee9..cea30d6b3b 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos/main.c
@@ -17,13 +17,14 @@ void SysTick_Handler(void) {
     xPortSysTickHandler();
 }
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   extern RNG_HandleTypeDef hrng;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void timer_fn(void *arg) {
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2-lwip/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2-lwip/main.c
index 0db1657384..6b98788bfa 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2-lwip/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2-lwip/main.c
@@ -14,13 +14,14 @@
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
 
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   extern RNG_HandleTypeDef hrng;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void server(void *args) {
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2/main.c
index 57f128cf6c..715e9bdbc3 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2/main.c
@@ -9,13 +9,14 @@
 
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   extern RNG_HandleTypeDef hrng;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void timer_fn(void *arg) {
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx-mdk/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx-mdk/main.c
index 3bd039abbe..13e2736b79 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx-mdk/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx-mdk/main.c
@@ -10,13 +10,14 @@
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
 
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   extern RNG_HandleTypeDef hrng;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void server(const void *args) {
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx/main.c
index d5a1edef3c..436075f28c 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx/main.c
@@ -9,13 +9,14 @@
 
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   extern RNG_HandleTypeDef hrng;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void timer_fn(void *arg) {
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5-lwip/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5-lwip/main.c
index 1fc921779c..e559875903 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5-lwip/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5-lwip/main.c
@@ -14,13 +14,14 @@
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
 
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   extern RNG_HandleTypeDef hrng;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void server(void *args) {
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5-mdk/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5-mdk/main.c
index 9e82356957..d5b90b8ca1 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5-mdk/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5-mdk/main.c
@@ -10,13 +10,14 @@
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
 
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   extern RNG_HandleTypeDef hrng;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void server(void *args) {
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5/main.c b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5/main.c
index 1c297dd90b..5537ceafa6 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5/main.c
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5/main.c
@@ -9,13 +9,14 @@
 
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
 
-void mg_random(void *buf, size_t len) {  // Use on-board RNG
+bool mg_random(void *buf, size_t len) {  // Use on-board RNG
   extern RNG_HandleTypeDef hrng;
   for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
     uint32_t r;
     HAL_RNG_GenerateRandomNumber(&hrng, &r);
     memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
   }
+  return true;
 }
 
 static void timer_fn(void *arg) {
diff --git a/extra/cmsis-pack/Cesanta.Mongoose.pdsc b/extra/cmsis-pack/Cesanta.Mongoose.pdsc
index 43227b46ce..5e4d5c0403 100644
--- a/extra/cmsis-pack/Cesanta.Mongoose.pdsc
+++ b/extra/cmsis-pack/Cesanta.Mongoose.pdsc
@@ -9,8 +9,8 @@
   <license>License.txt</license>
   <repository type="git">https://github.com/cesanta/mongoose.git</repository>
   <releases>
-    <release version="7.13.0" date="2024-02-28" tag="7.13">
-      See https://github.com/cesanta/mongoose/releases/tag/7.13
+    <release version="7.16.0" date="2024-11-20" tag="7.16">
+      See https://github.com/cesanta/mongoose/releases/tag/7.16
     </release>
   </releases>
 
@@ -29,12 +29,12 @@
   </taxonomy>
 
   <components>
-    <component Cclass="Network Library" Cgroup="Mongoose" Cversion="7.13.0">
+    <component Cclass="Network Library" Cgroup="Mongoose" Cversion="7.16.0">
       <description>Mongoose HTTP/MQTT/Websocket Library</description>
       <files>
         <file category="header" name="Mongoose/mongoose.h"/>
         <file category="source" name="Mongoose/mongoose.c"/>
-        <file category="header" name="Mongoose/config/mongoose_custom.h" attr="config" version="1.0.0"/>
+        <file category="header" name="Mongoose/config/mongoose_config.h" attr="config" version="1.0.0"/>
       </files>
     </component>
   </components>
diff --git a/extra/cmsis-pack/Mongoose/config/mongoose_custom.h b/extra/cmsis-pack/Mongoose/config/mongoose_config.h
similarity index 100%
rename from extra/cmsis-pack/Mongoose/config/mongoose_custom.h
rename to extra/cmsis-pack/Mongoose/config/mongoose_config.h