diff --git a/CHANGELOG.md b/CHANGELOG.md
index a98eab32..0ec66a6d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,9 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ### Added
 
+- Namespacing phase 2 - styles.
+[PR #2471](https://github.com/PHPOffice/PhpSpreadsheet/pull/2471)
+
 - Improved support for passing of array arguments to Excel function implementations to return array results (where appropriate). [Issue #2551](https://github.com/PHPOffice/PhpSpreadsheet/issues/2551)
 
   This is the first stage in an ongoing process of adding array support to all appropriate function implementations, 
@@ -50,6 +53,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 ### Fixed
 
 - Fixed `ReferenceHelper@insertNewBefore` behavior when removing column before last column with null value
+[PR #2541](https://github.com/PHPOffice/PhpSpreadsheet/pull/2541)
 - Fix bug with `DOLLARDE()` and `DOLLARFR()` functions when the dollar value is negative [Issue #2578](https://github.com/PHPOffice/PhpSpreadsheet/issues/2578) [PR #2579](https://github.com/PHPOffice/PhpSpreadsheet/pull/2579)
 - Fix partial function name matching when translating formulae from Russian to English [Issue #2533](https://github.com/PHPOffice/PhpSpreadsheet/issues/2533) [PR #2534](https://github.com/PHPOffice/PhpSpreadsheet/pull/2534)
 - Various bugs related to Conditional Formatting Rules, and errors in the Xlsx Writer for Conditional Formatting [PR #2491](https://github.com/PHPOffice/PhpSpreadsheet/pull/2491)
@@ -71,6 +75,15 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 - Xlsx Reader fix height and width for oneCellAnchorDrawings.
 [PR #2492](https://github.com/PHPOffice/PhpSpreadsheet/pull/2492)
 - Fix rounding error in NumberFormat::NUMBER_PERCENTAGE, NumberFormat::NUMBER_PERCENTAGE_00. [PR #2555](https://github.com/PHPOffice/PhpSpreadsheet/pull/2555)
+- Don't treat thumbnail file as xml.
+[Issue #2516](https://github.com/PHPOffice/PhpSpreadsheet/issues/2516)
+[PR #2517](https://github.com/PHPOffice/PhpSpreadsheet/pull/2517)
+- Eliminating Xlsx Reader warning when no sz tag for RichText.
+[Issue #2542](https://github.com/PHPOffice/PhpSpreadsheet/issues/2542)
+[PR #2550](https://github.com/PHPOffice/PhpSpreadsheet/pull/2550)
+- Fix Xlsx/Xls Writer handling of inline strings.
+[Issue #353](https://github.com/PHPOffice/PhpSpreadsheet/issues/353)
+[PR #2569](https://github.com/PHPOffice/PhpSpreadsheet/pull/2569)
 
 
 ## 1.21.0 - 2022-01-06