diff --git a/docs/releasenotes.rst b/docs/releasenotes.rst
index 6903f49d42c681c45a749cae3c3ccab06c982264..6dbbfe07e3fcae94f2cd25fb611d7481bd76f96f 100644
--- a/docs/releasenotes.rst
+++ b/docs/releasenotes.rst
@@ -5,6 +5,20 @@ Release notes
 NEXT RELEASE
 ------------
 
+.. warning::
+
+   This release contains the following breaking changes:
+
+   - Support for Python 3.5, 3.6, and 3.7 has been dropped. Make sure
+     that you are using one of the supported Python versions prior to
+     upgrading *Gimmecert*.
+
+Resolves issues:
+
+- **Tasks**:
+
+  - `GC-45: Drop support for Python 3.5, Python 3.6, and Python 3.7 <https://projects.majic.rs/gimmecert/issues/GC-45>`_
+
 
 0.5.0
 -----