diff --git a/releasenotes/notes/deprecate-climate-filter-f1ffca52a7a4e70c.yaml b/releasenotes/notes/deprecate-climate-filter-f1ffca52a7a4e70c.yaml
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+++ b/releasenotes/notes/deprecate-climate-filter-f1ffca52a7a4e70c.yaml
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+---
+deprecations:
+  - |
+    The Blazar-specific Nova scheduler filter named *ClimateFilter* is now
+    deprecated and will be removed in the next release. Please use
+    *BlazarFilter* instead. This change is part of the transition from Climate
+    (the old name of this project) to Blazar.