diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9cdb238..fc082b9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## [1.4.0](https://github.com/PathoGenOmics-Lab/VIPERA/compare/v1.3.1...v1.4.0) (2026-02-11)
+
+
+### Features
+
+* add low-confidence site filtering ([f447478](https://github.com/PathoGenOmics-Lab/VIPERA/commit/f447478fe409e01e64c7a9d077a18c8518f460aa))
+* remove demix module from rule core ([#30](https://github.com/PathoGenOmics-Lab/VIPERA/issues/30)) ([cb01079](https://github.com/PathoGenOmics-Lab/VIPERA/commit/cb0107939b82a2d7cc0dc94ca69448f9e6cf5b83))
+* use site quality filter to calculate evolutionary rate ([#33](https://github.com/PathoGenOmics-Lab/VIPERA/issues/33)) ([29d75e5](https://github.com/PathoGenOmics-Lab/VIPERA/commit/29d75e5e30d93b7c1048d93cda99dabc5a21690f))
+
+
+### Bug Fixes
+
+* deduplicate variants and handle missing annotation ([#32](https://github.com/PathoGenOmics-Lab/VIPERA/issues/32)) ([c70dfe0](https://github.com/PathoGenOmics-Lab/VIPERA/commit/c70dfe0a606705807c3f912a21a89338a9f88625))
+* init missing columns ([#37](https://github.com/PathoGenOmics-Lab/VIPERA/issues/37)) ([fa5f624](https://github.com/PathoGenOmics-Lab/VIPERA/commit/fa5f6240f4eac915eda1a61c53fbce0db8370732))
+* pin setuptools to avoid deprecation error in Snakemake 7 ([395696c](https://github.com/PathoGenOmics-Lab/VIPERA/commit/395696c8f1231d8e94c5eaf330a6dda59045d210))
+* pin setuptools version to avoid deprecation error ([#31](https://github.com/PathoGenOmics-Lab/VIPERA/issues/31)) ([395696c](https://github.com/PathoGenOmics-Lab/VIPERA/commit/395696c8f1231d8e94c5eaf330a6dda59045d210))
+
 ## [1.3.1](https://github.com/PathoGenOmics-Lab/VIPERA/compare/v1.3.0...v1.3.1) (2025-11-24)
 
 
diff --git a/version.txt b/version.txt
index 3a3cd8c..88c5fb8 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.3.1
+1.4.0