Update CHANGELOG.md for 4.69.1 (#5168)

* Update CHANGELOG.md

* Apply suggestions from code review

Co-authored-by: Gladwin Johnson <[email protected]>

---------

Co-authored-by: Gladwin Johnson <[email protected]>

Author: trwalke

CHANGELOG.md

@@ -1,3 +1,14 @@
+4.69.1
+==========
+### Features
+- Enabled broker support on the Linux platform. See [Issue #5086](https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/pull/5086)
+- Added a `WithCertificate(..., bool associateTokensWithCertificateSerialNumber)` overload to enable the use of the certificate's serial number as part of the cache key for tokens. [Issue #5150](https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/issues/5150)
+
+### Bug Fixes
+- MSAL will now stop replacing "%20" with "+" since it is obsolete. See [Issue #5061](https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/issues/5061)
+- Exposed client capabilities in AssertionRequestOptions for MSI FIC scenarios [Issue #4948](https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/issues/4948)
+- Added the missing claims in SignedAssertion when using the AssertionRequestOptions Delegate [Issue #5143](https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/issues/5143)
+
 4.68.0
 ==========
 ### Features