diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7aeea40f0..f978ef072 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).
 
+## [0.1.149] - 2026-10-21
+
+### Fixed
+
+- NovaBio Flex2 - do not emit measurements that have no measured value CUST-12697 (#1278)
+
 ## [0.1.148] - 2026-10-07
 
 ### Fixed
diff --git a/src/allotropy/__about__.py b/src/allotropy/__about__.py
index 031da9bca..8148d2dc1 100644
--- a/src/allotropy/__about__.py
+++ b/src/allotropy/__about__.py
@@ -1 +1 @@
-__version__ = "0.1.148"
+__version__ = "0.1.149"