2.10.0 readiness

Updates the CHANGELOG.md to set the release date.

CHANGELOG.md

@@ -2,16 +2,12 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
-## 2.10.0 - TBD
+## 2.10.0 - 2020-10-31
 
 ### Added
 
 - [#35](https://github.com/laminas/laminas-session/pull/35) Adds PHP 8.0 support
 
-### Changed
-
-- Nothing.
-
 ### Deprecated
 
 - [#35](https://github.com/laminas/laminas-session/pull/35) Marks some methods in `StandardConfig` and `SessionConfig` as deprecated as the functionality behind these methods was dropped in PHP 7.1
@@ -32,9 +28,22 @@ All notable changes to this project will be documented in this file, in reverse
 
 - [#35](https://github.com/laminas/laminas-session/pull/35) Removed compatibility with laminas-eventmanager v2
 
-### Fixed
 
-- Nothing.
+-----
+
+### Release Notes for [2.10.0](https://github.com/laminas/laminas-session/milestone/2)
+
+
+
+### 2.10.0
+
+- Total issues resolved: **0**
+- Total pull requests resolved: **1**
+- Total contributors: **1**
+
+#### Enhancement,hacktoberfest-accepted
+
+ - [35: PHP 8 support](https://github.com/laminas/laminas-session/pull/35) thanks to @rieschl
 
 ## 2.9.3 - 2020-03-29