diff --git a/.mailmap b/.mailmap
index 50a5b1c2..ecb82155 100644
--- a/.mailmap
+++ b/.mailmap
@@ -9,6 +9,7 @@ Audun Skaugen <audun@skaugen.name> <audunskaugen@gmail.com>
 Bas van Dijk <v.dijk.bas@gmail.com>
 Ben Boeckel <mathstuf@gmail.com>
 Ben Weitzman <benweitzman@gmail.com>
+Bogdan Sinitsyn <bogdan.sinitsyn@gmail.com>
 Brandon S Allbery KF8NH <allbery.b@gmail.com>
 Brandon S Allbery KF8NH <allbery.b@gmail.com> <allbery@ece.cmu.edu>
 Brent Yorgey <byorgey@gmail.com> <byorgey@cis.upenn.edu>
diff --git a/CHANGES.md b/CHANGES.md
index b4f809fc..026941cb 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -8,6 +8,9 @@
     changed from `KeySym` to `(KeyMask, KeySym)`. The default value
     for this is still binded to `Tab` key.
 
+  * New constructor `CenteredAt Rational Rational` added for
+    XMonad.Prompt.XPPosition.
+
 ## 0.12 (December 14, 2015)
 
 ### Breaking Changes