diff --git a/doc/release_notes.rst b/doc/release_notes.rst
index 4500cbc9..9b494b32 100644
--- a/doc/release_notes.rst
+++ b/doc/release_notes.rst
@@ -10,6 +10,11 @@ Release Notes
 Upcoming Release
 ================
 
+* Upgrade to Snakemake v8.5+. This version is the new minimum version required.
+  To upgrade an existing environment, run ``conda install -c bioconda
+  snakemake-minimal">=8.5"`` and ``pip install snakemake-storage-plugin-http``
+  (https://github.com/PyPSA/pypsa-eur/pull/825).
+
 * Corrected a bug leading to power plants operating after their DateOut
   (https://github.com/PyPSA/pypsa-eur/pull/958). Added additional grouping years
   before 1980.