NEWS.md in fluent-plugin-concat-2.4.0 vs NEWS.md in fluent-plugin-concat-2.5.0

@@ -1,6 +1,12 @@
 # ChangeLog
 
+## next
+
+### Improvements
+
+* adds `partial_metadata_format` to support Docker 20.10 journald log driver improvements [moby/moby#41407](https://github.com/moby/moby/pull/41407) 
+
 ## v2.3.0
 
 ### Improvements
 
 * Support `partial_key`, `partial_value` to concatenate split log lines. See #46, #52