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v0.173.1

Zipstack/unstractv0.173.1Jun 11, 2026by zipstack-push-to-main[bot]

AI Summary

This release introduces significant backend improvements related to queue fairness and barrier management, alongside dependency updates and bug fixes.

Key Highlights

  • Implemented PG Queue Phase 6a and 6b (Barrier interface + RedisDecrBarrier)
  • Upgraded Snowflake connector to 4.x for security (CVE fixes)
  • Fixed LlamaParse schema field naming (url to base_url)
  • Plumbed fairness key through ExecutionDispatcher

New Features

  • PG Queue Barrier interfaces
  • Fairness key propagation
  • Snowflake connector upgrade
  • Group-shared adapters in Prompt Studio

Full Release Notes

## What's Changed
* UN-3501 [FEAT] Plumb fairness key on every dispatch() call site by @muhammad-ali-e in https://github.com/Zipstack/unstract/pull/2003
* Bump the uv group across 10 directories with 5 updates by @dependabot[bot] in https://github.com/Zipstack/unstract/pull/2011
* Bump the uv group across 9 directories with 5 updates by @dependabot[bot] in https://github.com/Zipstack/unstract/pull/2017
* [FIX] Upgrade snowflake-connector-python to 4.x to unblock cryptography 48.0.0 (CVE fixes) by @jaseemjaskp in https://github.com/Zipstack/unstract/pull/2018
* UN-3508 [FEAT] Plumb fairness through ExecutionDispatcher by @muhammad-ali-e in https://github.com/Zipstack/unstract/pull/2009
* fix(llama-parse): rename schema field url to base_url (#1972) by @jaseemjaskp in https://github.com/Zipstack/unstract/pull/2019
* UN-3513 [FEAT] Type chord-callback boundary with BatchExecutionResult / FileExecutionResult by @muhammad-ali-e in https://github.com/Zipstack/unstract/pull/2020
* UN-3522 [FEAT] PG Queue Phase 6a — Barrier interface + CeleryChordBarrier wrapper + lift chord call sites + plumb fairness by @muhammad-ali-e in https://github.com/Zipstack/unstract/pull/2024
* UN-3522 [FEAT] Address Phase 6a Barrier review feedback by @muhammad-ali-e in https://github.com/Zipstack/unstract/pull/2025
* UN-3523 [FEAT] PG Queue Phase 6b — RedisDecrBarrier + WORKER_BARRIER_BACKEND flag by @muhammad-ali-e in https://github.com/Zipstack/unstract/pull/2026
* UN-3166 [FIX] Use group-shared adapters in Prompt Studio & workflows by @kirtimanmishrazipstack in https://github.com/Zipstack/unstract/pull/2028


**Full Changelog**: https://github.com/Zipstack/unstract/compare/v0.173.0...v0.173.1