diff --git a/CHANGES b/CHANGES
index 15a7680..2822774 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4,6 +4,10 @@
     - `Torsor` class for transitive group actions
     - `Regular` and `Conjugate` newtypes for groups acting on themselves
 
+- r1 (27 March 2023):
+  - allow `semigroupoids-6.0`
+  - allow `base-4.18` and test on GHC 9.6.
+
 * 0.6.1: 16 Nov 2021
 
 - Add more efficient `stimes` implementations for several `Semigroup`