Mention the backwards-incompatible change to imp.cache_from_source()/source_from_cache().
diff --git a/Misc/NEWS b/Misc/NEWS
index 120b57f..732cd9b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -61,6 +61,11 @@
Library
-------
+- Issue #13959: imp.cache_from_source()/source_from_cache() now follow
+ os.path.join()/split() semantics for path manipulation instead of its prior,
+ custom semantics of caring the right-most path separator forward in path
+ joining.
+
- Issue #2193: Allow ":" character in Cookie NAME values.
- Issue #14629: tokenizer.detect_encoding will specify the filename in the