diff --git a/src/main/resources/changelog.txt b/src/main/resources/changelog.txt
index dd491c3fb..8204716d3 100644
--- a/src/main/resources/changelog.txt
+++ b/src/main/resources/changelog.txt
@@ -1,6 +1,21 @@
 Spring Data Elasticsearch Changelog
 ===================================
 
+Changes in version 1.4.0.M1 (2016-02-12)
+----------------------------------------
+* DATAES-232 - Add code of conduct.
+* DATAES-231 - Release 1.4 M1 (Hopper).
+* DATAES-230 - Remove unnecessary type check in AbstractElasticsearchRepository.
+* DATAES-224 - ElasticsearchTemplate discards newlines in mappings and settings files.
+* DATAES-221 - Adapt to changes in Spring Data Commons.
+* DATAES-216 - Add support to Indices Boost.
+* DATAES-210 - Typo in error message.
+* DATAES-209 - Handle dynamic mapping annotation at field level.
+* DATAES-194 - Tests should clean up "data" directory.
+* DATAES-171 - findByIdNotIn not work.
+* DATAES-94 - Bump to support ES 1.2.0.
+
+
 Changes in version 1.3.2.RELEASE (2015-12-18)
 ---------------------------------------------
 * DATAES-223 - Release 1.3.2 (Gosling).