diff --git a/README.md b/README.md
index 2e40f6d4..80d47839 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,9 @@
 
 <img align="right" src="https://raw.githubusercontent.com/AFLplusplus/Website/main/static/aflpp_bg.svg" alt="AFL++ logo" width="250" height="250">
 
-Release version: [4.30c](https://github.com/AFLplusplus/AFLplusplus/releases)
+Release version: [4.31c](https://github.com/AFLplusplus/AFLplusplus/releases)
 
-GitHub version: 4.31a
+GitHub version: 4.31c
 
 Repository:
 [https://github.com/AFLplusplus/AFLplusplus](https://github.com/AFLplusplus/AFLplusplus)
diff --git a/TODO.md b/TODO.md
index 81196339..b12b81b0 100644
--- a/TODO.md
+++ b/TODO.md
@@ -2,6 +2,7 @@
 
 ## Must
 
+ - afl_fsrv_deinit cmplog
  - ijon support?
  - check for null ptr for xml/curl/g_ string transform functions
  - hardened_usercopy=0 page_alloc.shuffle=0
diff --git a/docs/Changelog.md b/docs/Changelog.md
index 1d97dc5c..595c59d0 100644
--- a/docs/Changelog.md
+++ b/docs/Changelog.md
@@ -4,9 +4,11 @@
   release of the tool. See README.md for the general instruction manual.
 
 
-### Version ++4.31a (dev)
+### Version ++4.31c (release)
+  - SAND mode added (docs/SAND.md) for more effecient fuzzing with sanitizers
+    (thanks to @wtdcode !)
   - afl-fuzz:
-    - splicing is now DISABLED by default because research showed
+    - splicing phase is now DISABLED by default because research showed
       it is counterproductive. New command line parameter `-u` to enable
       it. Splicing is auto-enabled if two cycles without finds happen.
     - Python 3.13+ support
diff --git a/include/config.h b/include/config.h
index 4ef78c6a..88ba84d2 100644
--- a/include/config.h
+++ b/include/config.h
@@ -26,7 +26,7 @@
 /* Version string: */
 
 // c = release, a = volatile github dev, e = experimental branch
-#define VERSION "++4.31a"
+#define VERSION "++4.31c"
 
 /******************************************************
  *                                                    *