Prepare azidentity v1.2.0-beta.1 release (Azure#18329)

Author: chlowell

sdk/azidentity/CHANGELOG.md

@@ -1,14 +1,18 @@
 # Release History
 
-## 1.0.2 (Unreleased)
+## 1.2.0-beta.1 (2022-06-07)
 
 ### Features Added
+* `EnvironmentCredential` reads certificate passwords from `AZURE_CLIENT_CERTIFICATE_PASSWORD`
+  ([#17099](https://github.com/Azure/azure-sdk-for-go/pull/17099))
 
-### Breaking Changes
-
-### Bugs Fixed
+## 1.1.0 (2022-06-07)
 
-### Other Changes
+### Features Added
+* `ClientCertificateCredential` and `ClientSecretCredential` support ESTS-R. First-party
+  applications can set environment variable `AZURE_REGIONAL_AUTHORITY_NAME` with a
+  region name.
+  ([#15605](https://github.com/Azure/azure-sdk-for-go/issues/15605))
 
 ## 1.0.1 (2022-06-07)
 

sdk/azidentity/version.go

@@ -11,5 +11,5 @@ const (
 	component = "azidentity"
 
 	// Version is the semantic version (see http://semver.org) of this module.
-	version = "v1.0.2"
+	version = "v1.2.0-beta.1"
 )