diff --git a/Cabal/ChangeLog.md b/Cabal/ChangeLog.md
index 20f081114e3e1a25405354152d3fd793d4acb5ba..dc2ccb157834582be882b1fa3aac5f32b1d76550 100644
--- a/Cabal/ChangeLog.md
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@@ -1,4 +1,7 @@
 # 3.0.0.0 [Mikhail Glushenkov](mailto:mikhail.glushenkov@gmail.com) August 2019
+  * The 3.0 migration guide gives advice on adapting Custom setup
+    scripts to backwards-incompatible changes in this release:
+    https://github.com/haskell/cabal/wiki/3.0-migration-guide.
   * Introduce set notation for `^>=` and `==` operators
     ([#5906](https://github.com/haskell/cabal/pull/5906)).
   * 'check' reports warnings for various ghc-\*-options fields separately