diff --git a/release_notes/Release-Notes-v26.2.0.md b/release_notes/Release-Notes-v26.2.0.md
index 4ca99a4..82b5683 100644
--- a/release_notes/Release-Notes-v26.2.0.md
+++ b/release_notes/Release-Notes-v26.2.0.md
@@ -75,6 +75,7 @@ See [here](https://github.com/ISISComputingGroup/IBEX/wiki#instrument-informatio
 | ------ | ------| ------------- |
 | [#24](https://github.com/ISISComputingGroup/genie/issues/24) | Patch | Allow `g.begin()` when DBSVR is down |
 | [#8724](https://github.com/ISISComputingGroup/IBEX/issues/8724) | Minor | Added `change_autosave` command to change autosave frequency. |
+| [#8850](https://github.com/ISISComputingGroup/IBEX/issues/8850) | Minor | Added validation for block name in waitfor() |
 
 
 ### Bluesky
@@ -123,3 +124,4 @@ Dependency | Version | last updated/checked
 Dependency | Version | last updated/checked
 |---- | ------- | --------------------|
 
+