Prepare Key Vault release (Azure#24740)

Author: heaths

sdk/keyvault/Azure.Security.KeyVault.Administration/CHANGELOG.md

@@ -1,17 +1,11 @@
 # Release History
 
-## 4.1.0-beta.2 (Unreleased)
+## 4.1.0-beta.2 (2021-10-14)
 
 ### Features Added
 
 - Support multi-tenant authentication against Managed HSM when using Azure.Identity 1.5.0 or newer. ([#18359](https://github.com/Azure/azure-sdk-for-net/issues/18359))
 
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
-
 ## 4.1.0-beta.1 (2021-08-10)
 
 ### Fixed

sdk/keyvault/Azure.Security.KeyVault.Certificates/CHANGELOG.md

@@ -1,21 +1,17 @@
 # Release History
 
-## 4.3.0-beta.2 (Unreleased)
+## 4.3.0-beta.2 (2021-10-14)
 
 ### Features Added
 
 - Added `KeyVaultCertificateIdentifier.TryCreate` to parse certificate URIs without throwing an exception when invalid. ([#23146](https://github.com/Azure/azure-sdk-for-net/issues/23146))
 - Support multi-tenant authentication against Key Vault and Managed HSM when using Azure.Identity 1.5.0 or newer. ([#18359](https://github.com/Azure/azure-sdk-for-net/issues/18359))
 
-### Breaking Changes
-
 ### Bugs Fixed
 
 - Added certificate version to distributed tracing. ([#12907](https://github.com/Azure/azure-sdk-for-net/issues/12907))
 - Added `DownloadCertificateOptions` to pass `X509KeyStorageFlags` appropriate for different host applications. ([#23016](https://github.com/Azure/azure-sdk-for-net/issues/23016))
 
-### Other Changes
-
 ## 4.3.0-beta.1 (2021-08-10)
 
 ### Fixed

sdk/keyvault/Azure.Security.KeyVault.Keys/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Release History
 
-## 4.3.0-beta.2 (Unreleased)
+## 4.3.0-beta.2 (2021-10-14)
 
 ### Features Added
 
@@ -10,14 +10,10 @@
 - Added `KeyVaultKeyIdentifier.TryCreate` to parse key URIs without throwing an exception when invalid. ([#23146](https://github.com/Azure/azure-sdk-for-net/issues/23146))
 - Support multi-tenant authentication against Key Vault and Managed HSM when using Azure.Identity 1.5.0 or newer. ([#18359](https://github.com/Azure/azure-sdk-for-net/issues/18359))
 
-### Breaking Changes
-
 ### Bugs Fixed
 
 - Added key version to distributed tracing. ([#12907](https://github.com/Azure/azure-sdk-for-net/issues/12907))
 
-### Other Changes
-
 ## 4.3.0-beta.1 (2021-08-10)
 
 ### Features Added

sdk/keyvault/Azure.Security.KeyVault.Secrets/CHANGELOG.md

@@ -1,20 +1,16 @@
 # Release History
 
-## 4.3.0-beta.2 (Unreleased)
+## 4.3.0-beta.2 (2021-10-14)
 
 ### Features Added
 
 - Added `KeyVaultSecretIdentifier.TryCreate` to parse secret URIs without throwing an exception when invalid. ([#23146](https://github.com/Azure/azure-sdk-for-net/issues/23146))
 - Support multi-tenant authentication against Key Vault and Managed HSM when using Azure.Identity 1.5.0 or newer. ([#18359](https://github.com/Azure/azure-sdk-for-net/issues/18359))
 
-### Breaking Changes
-
 ### Bugs Fixed
 
 - Added secret version to distributed tracing. ([#12907](https://github.com/Azure/azure-sdk-for-net/issues/12907))
 
-### Other Changes
-
 ## 4.3.0-beta.1 (2021-08-10)
 
 ### Fixed