Add TOC and changelog (Azure#50066)

Author: nick863

sdk/ai/Azure.AI.Agents.Persistent/CHANGELOG.md

@@ -1,14 +1,14 @@
 # Release History
 
-## 1.0.0-beta.2 (Unreleased)
-
-### Features Added
+## 1.0.0-beta.2 (2025-05-14)
 
 ### Breaking Changes
+- ThreadRunSteps methods were moved to Runs.
+- VectorStoreFileBatches and VectorStoreFiles methods were moved to VectorStores.
+- The AzureAISearchResource was replaced by AzureAISearchToolResource.
 
-### Bugs Fixed
-
-### Other Changes
+### Sample updates
+- Added sample demonstrating uploading single file to vector store and listing run steps.
 
 ## 1.0.0-beta.1 (2025-05-09)
 

sdk/ai/Azure.AI.Agents.Persistent/samples/README.md

@@ -31,4 +31,6 @@ description: Samples for the Azure.AI.Agents.Persistent client library.
 | [Sample16_PersistentAgents_Azure_AI_Search_Streaming](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/ai/Azure.AI.Agents.Persistent/samples/Sample16_PersistentAgents_Azure_AI_Search_Streaming.md) | Sample using agents with Azure AI Search tool with streaming. |
 | [Sample17_PersistentAgents_ImageUrlInputs](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/ai/Azure.AI.Agents.Persistent/samples/Sample17_PersistentAgents_ImageUrlInputs.md) | Sample using agents with Image URL as an input. |
 | [Sample18_PersistentAgents_ImageFileInputs](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/ai/Azure.AI.Agents.Persistent/samples/Sample18_PersistentAgents_ImageFileInputs.md) | Sample using agents with Image Fileas an input. |
+| [Sample19_PersistentAgents_VectorStoreFile_WithSteps](https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/ai/Azure.AI.Agents.Persistent/samples/Sample19_PersistentAgents_VectorStoreFile_WithSteps.md) | Sample file search using `VectorStoreFile` and agents. |
+