docs(changelog): update release notes

CHANGELOG.md

@@ -1,12 +1,21 @@
 # CHANGELOG
 
-## [v2.20.0](https://github.com/Checkmarx/ast-vscode-extension/releases/tag/v2.20.0) - 2024-09-16 12:38:10
+## [v2.20.1-2.20.0-prerelease.0](https://github.com/Checkmarx/ast-vscode-extension/releases/tag/v2.20.1-2.20.0-prerelease.0) - 2024-09-18 08:11:28
 
-<!-- Release notes generated using configuration in .github/release.yml at v2.20.0 -->
+<!-- Release notes generated using configuration in .github/release.yml at main -->
 
-## [v2.19.1-2.20.0-prerelease.0](https://github.com/Checkmarx/ast-vscode-extension/releases/tag/v2.19.1-2.20.0-prerelease.0) - 2024-09-16 08:02:25
+## What's Changed
+### Bug Fixes 🐛
+* Changelog and prereleases should appear in vscode (AST-66013) by @elchananarb in https://github.com/Checkmarx/ast-vscode-extension/pull/952
+### Other Changes
+* Itay feature: Show SCS results include group by and Filter and Vulnerability Tab (AST-63908) by @Korjen97 in https://github.com/Checkmarx/ast-vscode-extension/pull/946
 
-<!-- Release notes generated using configuration in .github/release.yml at main -->
+
+**Full Changelog**: https://github.com/Checkmarx/ast-vscode-extension/compare/v2.20.0...v2.20.1-2.20.0-prerelease.0
+
+## [v2.20.0](https://github.com/Checkmarx/ast-vscode-extension/releases/tag/v2.20.0) - 2024-09-16 12:38:10
+
+<!-- Release notes generated using configuration in .github/release.yml at v2.20.0 -->
 
 ## [v2.19.1-0](https://github.com/Checkmarx/ast-vscode-extension/releases/tag/v2.19.1-0) - 2024-09-04 05:21:24