Azure/azure-sdk-for-net Azure.AI.Projects.Agents_3.0.0-beta.4

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3.0.0-beta.4 (2026-10-12)

Features Added

• Expanded Agent Optimization with cost estimation, a dedicated candidate-listing client, and new models for optimization configuration, evaluation sets, candidate mutations, results, token usage, and latency metrics.
• Added toolbox support for browser automation tool, and added external web access configuration for web-search toolbox tools.
• Added language and keyword metadata to voice telephony call records.
• Added support for starting an agent's initiated process from a memory snapshot.

Breaking Changes

• Redesigned the Agent Optimization API and model hierarchy. Job creation now uses optimization model and configuration objects, job listings return AgentOptimizationJob, and the previous dataset input, job input, options, progress, and list-item models were removed.
• Renamed the Teams Phone Extension telephony APIs to Teams Phone Extensibility and renamed MCPToolboxToolConnectorId to McpToolConnectorId.
• Replaced voice response status, output modality, semantic VAD eagerness, and web-search context-size types with the corresponding shared OpenAI types.
• Moved CallableToolAllowedCaller, VoiceAgentAudioInputConfigTranscriptionDelay, RealtimeFunctionToolParameters, ContainerSkill, InlineSkillParam, InlineSkillSourceParam, and SkillReferenceParam from the OpenAI namespace to Azure.AI.Projects.Agents.

Other Changes

• Agent Optimization no longer requires the AAIP001 warning suppression or the AgentsOptimization=V2Preview feature opt-in.

Sample Updates

• Updated the Agent Optimization samples for the redesigned job configuration and candidate APIs.