diff --git a/CHANGELOG.md b/CHANGELOG.md
index 51fca05ca..3d6b29991 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this packages will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.126] - 2026-04-30
+
+### Added
+
+- Add vendor auto-discovery from file contents (#1195)
+
 ## [0.1.125] - 2026-04-22
 
 ### Fixed
diff --git a/src/allotropy/__about__.py b/src/allotropy/__about__.py
index e995d4e97..7ab5f7787 100644
--- a/src/allotropy/__about__.py
+++ b/src/allotropy/__about__.py
@@ -1 +1 @@
-__version__ = "0.1.125"
+__version__ = "0.1.126"