Issue #12050: zlib.decompressobj().decompress() now clears the unconsumed_tail
attribute when called without a max_length argument.
diff --git a/Misc/NEWS b/Misc/NEWS
index f96ed7b..06c1d62 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -69,6 +69,9 @@
 Library
 -------
 
+- Issue #12050: zlib.decompressobj().decompress() now clears the unconsumed_tail
+  attribute when called without a max_length argument.
+
 - Issue #12062: Fix a flushing bug when doing a certain type of I/O sequence
   on a file opened in read+write mode (namely: reading, seeking a bit forward,
   writing, then seeking before the previous write but still within buffered