Update changelog with changes from v3.19.0

Author: newrelic-coreint-bot

CHANGELOG.md

@@ -7,9 +7,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
 
-### security
+## v3.19.0 - 2026-05-18
+
+### 🛡️ Security notices
 - update github.com/apache/thrift to v0.23.1-0.20260429145742-d2acd3c49e58
 
+### ⛓️ Dependencies
+- Updated source
+
 ## v3.18.0 - 2026-04-15
 
 ### 🛡️ Security notices