2.10.0 readiness

Updates the CHANGELOG.md to set the release date.

CHANGELOG.md

@@ -2,27 +2,28 @@
 
 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 - 2021-01-01
 
 ### Added
 
 - [#20](https://github.com/laminas/laminas-filter/pull/20) Adds PHP 8.0 support
 
-### Changed
 
-- Nothing.
+-----
 
-### Deprecated
+### Release Notes for [2.10.0](https://github.com/laminas/laminas-filter/milestone/1)
 
-- Nothing.
 
-### Removed
 
-- Nothing.
+### 2.10.0
 
-### Fixed
+- Total issues resolved: **0**
+- Total pull requests resolved: **1**
+- Total contributors: **1**
 
-- Nothing.
+#### Enhancement
+
+ - [20: PHP 8.0 support](https://github.com/laminas/laminas-filter/pull/20) thanks to @svycka
 
 ## 2.9.4 - 2020-03-29