diff --git a/GorgonMeducer.perf_counter.pdsc b/GorgonMeducer.perf_counter.pdsc
index e05424d..2419959 100644
--- a/GorgonMeducer.perf_counter.pdsc
+++ b/GorgonMeducer.perf_counter.pdsc
@@ -19,6 +19,11 @@
     <release version="9.9.9" tag"9.9.9">
       Active development ...
     </release>
+    <release date="2024-12-08" version="2.4.0" tag="v2.4.0" url="https://github.com/GorgonMeducer/perf_counter/releases/download/v2.4.0/GorgonMeducer.perf_counter.2.4.0.pack">
+      - Avoid time roll-back in some rare cases
+      - Add macros for protoThread
+      - Some minor changes
+    </release>
     <release date="2024-07-27" version="2.3.3" tag="v2.3.3" url="https://github.com/GorgonMeducer/perf_counter/releases/download/v2.3.3/GorgonMeducer.perf_counter.2.3.3.pack">
       Release v2.3.3
       - Enhance foreach() and with() with __typeof__()