Bump 2.5.1

Signed-off-by: Joffrey F <joffrey@docker.com>
diff --git a/docker/version.py b/docker/version.py
index 3b899fb..273270d 100644
--- a/docker/version.py
+++ b/docker/version.py
@@ -1,2 +1,2 @@
-version = "2.6.0-dev"
+version = "2.5.1"
 version_info = tuple([int(d) for d in version.split("-")[0].split(".")])
diff --git a/docs/change-log.md b/docs/change-log.md
index 199e5ce..9fe15e1 100644
--- a/docs/change-log.md
+++ b/docs/change-log.md
@@ -1,6 +1,18 @@
 Change log
 ==========
 
+2.5.1
+-----
+
+[List of PRs / issues for this release](https://github.com/docker/docker-py/milestone/37?closed=1)
+
+### Bugfixes
+
+* Fixed a bug where patterns ending with `**` in `.dockerignore` would
+  raise an exception
+* Fixed a bug where using `attach` with the `stream` argument set to `False`
+  would raise an exception
+
 2.5.0
 -----