diff --git a/CHANGELOG.md b/CHANGELOG.md
index d4f8c925..551d7bdd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 1.42.0 [unreleased]
+## 1.42.0 [2024-04-17]
 
 ### Bug Fixes
 1. [#648](https://github.com/influxdata/influxdb-client-python/pull/648): Fix `DataFrame` serialization with `NaN` values
diff --git a/influxdb_client/version.py b/influxdb_client/version.py
index 3ea7c0e4..86f24fc9 100644
--- a/influxdb_client/version.py
+++ b/influxdb_client/version.py
@@ -1,3 +1,3 @@
 """Version of the Client that is used in User-Agent header."""
 
-VERSION = '1.42.0dev0'
+VERSION = '1.42.0'