diff --git a/CHANGELOG.md b/CHANGELOG.md
index d517da13f..3cae55428 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ All notable changes to this project will be documented in this file.
 ## [9.5.0.7]
 ### Added
 - Turn HTTP API (command ``SetOption128 1``) default on for backward compatibility
+- Support for IEM3155 Wattmeter (#12950)
 
 ## [9.5.0.6] 20210820
 ### Added
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 0ad02bc4f..d94765d47 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -119,6 +119,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl http://ota.tasmo
 - Support for CAN bus and Freedom Won Battery Management System by Marius Bezuidenhout [#12651](https://github.com/arendst/Tasmota/issues/12651)
 - Optional IP filter to command ``TCPStart`` [#12806](https://github.com/arendst/Tasmota/issues/12806)
 - Inital support for Wi-Fi extender [#12784](https://github.com/arendst/Tasmota/issues/12784)
+- Support for IEM3155 Wattmeter [#12950](https://github.com/arendst/Tasmota/issues/12950)
 
 ### Changed
 - Move firmware binaries to https://github.com/arendst/Tasmota-firmware/tree/main/release-firmware