diff --git a/pub/CHANGELOG b/pub/CHANGELOG
index 5adb31512d59f3c7904cbaf967be7581c6227a7f..576b4c2480bc4ac7c397835f452b1c2c4894933d 100644
--- a/pub/CHANGELOG
+++ b/pub/CHANGELOG
@@ -1,3 +1,17 @@
+Release 2.3.1a of 11sep15:
+
+- Updated dependence:
+  - now requires libyaml-cpp0.5 instead of obsolete 0.3
+- New functionality:
+  - reference 'nk' for number of files
+- Bugfixes:
+  - repaired man page building (was broken since conversion to cmake)
+  - update man page contents
+  - don't require test directory to be in path
+- New tests:
+  - loading SPHERES raw data
+  - convoluting two functions (really?)
+
 Release 2.3.0d of 1jul15:
 
 - New functionality: