Update M.E.AI to 9.1.0-preview.1.25064.3

[stephentoub]

No description provided.

[tghamm]

Hi @stephentoub after updating Microsoft.Extensions.AI and Microsoft.SemanticKernel to the latest on this PR, I now get an exception in my test that attempts to bootstrap SK and make a call using a function. This seemed to work fine in the previous iteration. Is this iteration simply incompatible or am I missing something? Thanks in advance.

[tghamm]

For context:
System.MissingMethodException: 'Method not found: 'Microsoft.Extensions.AI.ChatResponseFormatJson Microsoft.Extensions.AI.ChatResponseFormat.ForJsonSchema(System.String, System.String, System.String)'.'
When invoking var result = await chatCompletionService.GetChatMessageContentAsync( history, executionSettings: promptExecutionSettings, kernel: kernel );

[stephentoub]

The property name changed from AdditionalProperties to AdditionalCounts, and the type of it changed as well; this was a necessary break to support summing these additional counts. This now happens e.g. in the FunctionInvokingChatClient, which might generate an additional N roundtrips to the LLM as part of invoking requested functions, in which case we want the final message it returns to include all counts and not just those associated with the final request.

Unfortunately, such binary breaks mean that two different libraries using two different incompatible versions will result in failure... I'm assuming the error you're getting is MissingMethodException or something like that? SK needs to merge and ship microsoft/semantic-kernel#10199 to resolve the issue.

[tghamm]

Makes sense, I appreciate the explanation! I can merge/ship this with release notes for SK users about waiting to upgrade until your PR has been merged and shipped over in SK.

[stephentoub]

cc: @markwallace-microsoft