diff --git a/doc/CHANGELOG.md b/doc/CHANGELOG.md
index f39c6928c6..e9020a81f0 100755
--- a/doc/CHANGELOG.md
+++ b/doc/CHANGELOG.md
@@ -1,4 +1,4 @@
-## Version 4.0 (TBA)
+## Version 4.0 (2024-12-20)
 * Fixed: Multiple bug-fixes regarding several reported unhandled exceptions.
 * Revised: Minor bug-fix regarding tamper script "backticks.py"
 * Revised: Improvements regarding shell options `reverse_tcp`, `bind_tcp`.
@@ -24,6 +24,8 @@
 * Added: New option `--abort-code` for aborting on (problematic) HTTP error code(s) (e.g. 401)
 * Added: New option `--time-limit` for running with a time limit in seconds (e.g. 3600).
 
+_Note: For more check the [detailed changeset](https://github.com/commixproject/commix/compare/v3.9...v4.0)._
+
 ## Version 3.9 (2024-01-19)
 * Fixed: Multiple bug-fixes regarding several reported unhandled exceptions.
 * Revised: Minor improvement regarding logging user-supplied command(s) (i.e. `--os-cmd` option) to a file.
diff --git a/setup.py b/setup.py
index 8050b15f93..c7b142998c 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
 
 setup(
       name='commix',
-      version='4.0-dev',
+      version='4.0-stable',
       description='Automated All-in-One OS Command Injection Exploitation Tool',
       long_description=open('README.md').read(),
       long_description_content_type='text/markdown',
diff --git a/src/utils/settings.py b/src/utils/settings.py
index 47029b6d19..8e1df78f4c 100755
--- a/src/utils/settings.py
+++ b/src/utils/settings.py
@@ -263,7 +263,7 @@ def sys_argv_errors():
 AUTHOR  = "Anastasios Stasinopoulos"
 VERSION_NUM = "4.0"
 REVISION = "121"
-STABLE_RELEASE = False
+STABLE_RELEASE = True
 VERSION = "v"
 if STABLE_RELEASE:
   VERSION = VERSION + VERSION_NUM + "-stable"