Update RELEASENOTES.md

diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 05782d228020ccd700ce4649ee5c9450fed7b177..f2e153ebb08ad4865c501b3494db55c4c6a174a1 100644 (file)
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -1,3 +1,7 @@
+Version 3.1s3
+====
+More extensive changes have been made to improve the stability by making some operations reentrant. The instabilities occur sometimes when interrupting a play session by another.
+
 Version 3.1s1 and 3.1s2
 ====
 **Bug fix**