Update changelog.txt (#1483)

changelog.txt

@@ -1,7 +1,14 @@
-Version 4.4.3
+Version 4.5.0
 ===============
+
+New features: 
+- Developers can inject an HttpClient via a new AuthenticationContext constructor, allowing better control in scenarios such as setting a proxy
+
+Bug fixes:
 - **When using ADAL v4.4.2 and MSAL v2.6 in the same Xamarin project, a Duplicate Java type error was encountered**. The Android AuthenticationActivity defined name has been changed and is now distinct from the one in MSAL. [ADAL issue](https://github.com/AzureAD/azure-activedirectory-library-for-dotnet/issues/1479)
 - **When using brokered authentication, if the UID was not present, broker was unable to find the UID in the Android package**. Now ADAL sends the UID and package name as part of the broker options so silent authentication with broker works consistently. [ADAL PR](https://github.com/AzureAD/azure-activedirectory-library-for-dotnet/pull/1468)
+- Fix a bug preventing an access token to be returned from the cache in scenarios involving Android Broker and cross resource access (https://github.com/AzureAD/azure-activedirectory-library-for-dotnet/issues/1463)
+- Add more logging to the Android broker flow to help investigate customer issues
 - **The token cache instance was not available in debug logs**. Now the token cache is set from the request object and is available in debug logs. [ADAL issue](https://github.com/AzureAD/azure-activedirectory-library-for-dotnet/issues/1471)
 
 Version 4.4.2