Changelog

New Features:

PgVector: added similarity_threshold parameter for filtering search results by minimum similarity score.
Team: Added streaming event support for TeamMode.tasks, enabling real-time event emission during autonomous task execution.
Workflows HITL: Add support for HITL in workflows at Step level to pause for confirmation and user input. See docs

Metrics: Redesigns the metrics system to provide per-model, per-component granular tracking across the entire agent/team/workflow lifecycle.
WebsearchTools: expose timelimit, region and backend params in DuckDuckGoTools
SeltzTools: Updated to use Seltz SDK 0.1.3

AWS Bedrock: Fixed to refresh AWS credentials on every Bedrock request when using boto3 session.
@tool decorator: Fixed @tool decorator to not fail for Agent/Team type annotations
Pydantic model serialization: Fixed Pydantic model serialization in tool cache.

chore: update quickstart by @ashpreetbedi in #6656
chore: new cookbook by @ashpreetbedi in #6663
feat: add similarity_threshold parameter for filtering search for PgVector [SDK-441] by @harshsinha03 in #6216
cookbook: agent level by @ysolanky in #6665
chore: split team tests into 4 balanced parallel jobs by @ysolanky in #6628
fix: handle Pydantic model serialization in tool cache by @fehmisener in #6678
[feat] expose timelimit, region and backend params in DuckDuckGoTools by @hztBUAA in #6650
fix: @tool decorator fails with Agent/Team type annotations by @ysolanky in #6610
chore: openai pdf input bytes by @kausmeows in #6685
fix: add CI guard for split test coverage + fix 3 missing knowledge tests by @Mustafa-Esoofally in #6668
fix: use fresh OpenAI clients in memori multi-registration tests by @Mustafa-Esoofally in #6691
fix: refresh AWS credentials on every Bedrock request when using boto3 session by @Mustafa-Esoofally in #6657
feat: metrics update by @harshsinha03 in #6405
feat: support streaming for team task mode by @kausmeows in #6622
[feat] Update SeltzTools for Seltz SDK 0.1.3 by @WilliamEspegren in #6292
fix: include member response metrics in team session metrics by @ysolanky in #6704
feat: step level workflow HITL by @kausmeows in #6211
refactor: replace heavyweight RunOutput collectors with RunMetrics by @ysolanky in #6703
fix: harden hook execution and PII guardrail by @Mustafa-Esoofally in #6483
chore: Release v2.5.4 by @kausmeows in #6661

Full Changelog: v2.5.3...v2.5.4