diff --git a/WHATS_NEW b/WHATS_NEW
index e69554303..0544823cf 100644
--- a/WHATS_NEW
+++ b/WHATS_NEW
@@ -1,5 +1,8 @@
 Version 2.03.28 - 
 ==================
+  Replace use of dm_hash with radix_tree for lv names and uuids.
+  Refactor vg_validate with uniq_insert and better use of CPU caches.
+  Add radix_tree_uniq_insert.
   Update DM cache when taking next VG lock instead of dropping it.
   Generate json string id only for json reporting.
   For vgsummary use new API call dm_config_parse_only_section().