diff --git a/RELEASE.rst b/RELEASE.rst
index 11f1b2048..e3c3fd3f7 100644
--- a/RELEASE.rst
+++ b/RELEASE.rst
@@ -6,6 +6,16 @@ Release Notes
 These are the major changes made in each release. For details of the changes
 see the commit log at https://github.com/pydata/bottleneck
 
+Bottleneck 1.4.0
+================
+
+*Release date: 2024-05-xx
+
+Enhancements
+~~~~~~~~~~~~
+- Building against numpy 2.0rc1, which ships new backwards compatible ABI
+- Update CI config
+
 Bottleneck 1.3.8
 ================