Add deprecation of NewConnectionError.pool to changelog
@@ -14,6 +14,8 @@ Changes
favor of overriding the ``_render_part`` method. #2257
* Make all parameters after `method` and `url` for `urllib3.request()`
keyword only. #2283
+* The ``NewConnectionError.pool`` deprecated and will be removed
+ in a later urllib3 v2.x release. #2271
1.26.5 (2021-05-26)
