Identity update changelogs for 1.7.0-beta.1 release (Azure#30437)

* Identity update changelogs for 1.7.0-beta.1 release

* fix

Author: schaabs

sdk/identity/Azure.Identity.BrokeredAuthentication/CHANGELOG.md

@@ -1,14 +1,9 @@
 # Release History
 
-## 1.0.0-beta.3 (Unreleased)
-
-### Features Added
+## 1.0.0-beta.3 (2022-08-09)
 
 ### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
+- Added required constructor parameter `parentWindowHandle` to `InteractiveBrowserCredentialBrokerOptions`, to require setting the parent window for the authentication broker.
 
 ## 1.0.0-beta.2 (2022-04-05)
 

sdk/identity/Azure.Identity/CHANGELOG.md

@@ -1,14 +1,9 @@
 # Release History
 
-## 1.7.0-beta.1 (Unreleased)
+## 1.7.0-beta.1 (2022-08-09)
 
 ### Features Added
-
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
+- `ManagedIdentityCredential` will now internally cache tokens, so applications can call `GetToken` and `GetTokenAsync` directly without needing to cache to avoid throttleling.
 
 ## 1.6.1 (2022-08-08)