diff --git a/CHANGELOG-3.1.md b/CHANGELOG-3.1.md
index 8b2959413d..33ad4d3196 100644
--- a/CHANGELOG-3.1.md
+++ b/CHANGELOG-3.1.md
@@ -7,6 +7,51 @@ in 3.1 minor versions.
 To get the diff for a specific change, go to https://github.com/symfony/symfony/commit/XXX where XXX is the change hash
 To get the diff between two versions, go to https://github.com/symfony/symfony/compare/v3.1.0...v3.1.1
 
+* 3.1.5 (2016-10-03)
+
+ * bug #20102 [Validator] Url validator not validating hosts ending in a number (gwkunze)
+ * bug #20132 Use "more entropy" option for uniqid() (javiereguiluz)
+ * bug #20122 [Validator] Reset constraint options (ro0NL)
+ * bug #20116 fixed AddConstraintValidatorsPass config (fabpot)
+ * bug #20078 Fix #19943 Make sure to process each interface metadata only once (lemoinem)
+ * bug #20080 [Form] compound forms without children should be considered rendered implicitly (backbone87)
+ * bug #20087 [VarDumper] Fix PHP 7.1 compat (nicolas-grekas)
+ * bug #20086 [VarDumper] Fix PHP 7.1 compat (nicolas-grekas)
+ * bug #20077 [Process] silent file operation to avoid open basedir issues (xabbuh)
+ * bug #20079 fixed Twig support for 1.26 and 2.0 (fabpot)
+ * bug #20051 Fix indexBy type extraction (lemoinem)
+ * bug #19951 [Finder] Trim trailing directory slash in ExcludeDirectoryFilterIterator (ro0NL)
+ * bug #19980 [Ldap] Fixed issue with legacy find() method not working as expected (csarrazi)
+ * bug #20026 [Cache] Fixed password used to make the redis connection. (ErikSaunier)
+ * bug #20018 [VarDumper] Fix test (nicolas-grekas)
+ * bug #20011 Use UUID for error codes for Form validator. (Koc)
+ * bug #20010 [DX] Fixed regression when exception message swallowed when logging it. (Koc)
+ * bug #19983 [TwigBridge] removed Twig null nodes (deprecated as of Twig 1.25) (fabpot)
+ * bug #19946 [Console] Fix parsing optionnal options with empty value in argv (chalasr)
+ * bug #19636 [Finder] no PHP warning on empty directory iteration (ggottwald)
+ * bug #19784 [HttpKernel] Fixed the nullable support for php 7.1 and below (iltar)
+ * bug #19923 [bugfix] [Console] Set `Input::$interactive` to `false` when command is executed with `--quiet` as verbosity level (phansys)
+ * bug #19811 Fixed the nullable support for php 7.1 and below (2.7, 2.8, 3.0) (iltar)
+ * bug #19853 [PropertyInfo] Make ReflectionExtractor compatible with ReflectionType changes in PHP 7.1 (teohhanhui)
+ * bug #19904 [Form] Fixed collapsed ChoiceType options attributes (HeahDude)
+ * bug #19872 [Filesystem] Consider the umask setting when dumping a file (leofeyer)
+ * bug #19908 [Config] Handle open_basedir restrictions in FileLocator (Nicofuma)
+ * bug #19893 [FrameworkBundle] Remove cache clearer default value in config (nicolas-grekas)
+ * bug #19924 [DoctrineBridge][PropertyInfo] Treat Doctrine decimal type as string (teohhanhui)
+ * bug #19932 Fixed bad merge (GrahamCampbell)
+ * bug #19922 [Yaml][TwigBridge] Use JSON_UNESCAPED_SLASHES for lint commands output (chalasr)
+ * bug #19928 [Validator] Update IpValidatorTest data set with a valid reserved IP (jakzal)
+ * bug #19813 [Console] fixed PHP7 Errors are now handled and converted to Exceptions (fonsecas72)
+ * bug #19879 [Form] Incorrect timezone with DateTimeLocalizedStringTransformer (mbeccati)
+ * bug #19878 Fix translation:update command count (tgalopin)
+ * bug #19859 [ClassLoader] Fix ClassCollectionLoader inlining with declare(strict_types=1) (nicolas-grekas)
+ * bug #19780 [FrameworkBundle] Incorrect line break in exception message (500 debug page) (pedroresende)
+ * bug #19595 [form] lazy trans `post_max_size_message`. (aitboudad)
+ * bug #19870 [DI] Fix setting synthetic services on ContainerBuilder (nicolas-grekas)
+ * bug #19848 Revert "minor #19689 [DI] Cleanup array_key_exists (ro0NL)" (nicolas-grekas)
+ * bug #19842 [FrameworkBundle] Check for class existence before is_subclass_of (chalasr)
+ * bug #19827 [BrowserKit] Fix cookie expiration on 32 bit systems (jameshalsall)
+
 * 3.1.4 (2016-09-03)
 
  * bug #19812 [WebProfilerBundle] Fix margin on toolbar route panel when no route is found in the request (jameshalsall)