diff --git a/changelogs/5.11.md b/changelogs/5.11.md
index 9ec0a3a6cc8..96c05bf1b6c 100644
--- a/changelogs/5.11.md
+++ b/changelogs/5.11.md
@@ -24,3 +24,16 @@ Consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if
 - Restructured GitHub Actions CI workflows to make them easier to maintain (no need to update PHP versions in multiple places anymore).
 - GitHub Actions CodeStyle workflow now uses php-cs-fixer 3.49.x.
 - Dependabot updates are now processed weekly instead of daily.
+
+# 5.11.1
+Released 23rd February 2024.
+
+## Fixes
+- Fixed subchunk count calculation in `ChunkSerializer` for non-overworld dimension (useful for dimension plugins).
+- Harden options used for processing JSON data, particularly on the network, to close security issues.
+
+## Documentation
+- Fixed PHPStan signature for `Utils::cloneObjectArray()`.
+
+## Internals
+- Updated GitHub Actions versions to get rid of deprecation warnings.
diff --git a/src/VersionInfo.php b/src/VersionInfo.php
index c87bc899b8c..4072fb95913 100644
--- a/src/VersionInfo.php
+++ b/src/VersionInfo.php
@@ -32,7 +32,7 @@
 final class VersionInfo{
 	public const NAME = "PocketMine-MP";
 	public const BASE_VERSION = "5.11.1";
-	public const IS_DEVELOPMENT_BUILD = true;
+	public const IS_DEVELOPMENT_BUILD = false;
 	public const BUILD_CHANNEL = "stable";
 
 	/**