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Changelog

Synth Workshop v0.5.0

First broadly distributed Synth Workshop release. Increase your Experiments Per Minute with local and API-native evals, environment QA, GEPA, and SFT.

Monday, August 17, 20261 min read
workshopreleasemacosv0.5

Synth Workshop v0.5 is the first release intended for meaningful external distribution. The public name is Synth Workshop. Desktop describes the macOS application; it is not a second product identity.

The headline is Increase your Experiments Per Minute.

The v0.5 macOS ZIP is published for Apple silicon Macs. It is ad-hoc signed and not Apple-notarized, so first launch uses the documented Control-click → Open flow.

Product

  • Speed: compress the distance between an idea and trustworthy evidence.
  • Visualize data: runs, traces, scores, candidates, and artifacts stay inspectable.
  • Core data and algorithm infrastructure: evals, environments, GEPA, SFT, traces, and provenance.
  • Local first-class and API first-class: ChatGPT login, local models, direct provider APIs, and Synth API.

Workflows

  • Evals and comparative evidence.
  • Environment QA and debugging.
  • Prompt and policy optimization with GEPA.
  • Supervised fine-tuning.
  • CUA where direct interaction with software is useful, without displacing the research loop.

Distribution

  • Catalog pin: 0.5.0 in the frontend release authority.
  • SHA-256: b0195e7b3daba45340e95b0c92e4a895201421e78783a8673a282a23dd1378e4.
  • Source: synth-laboratories/workshop@6adaeb85149801df7b6b0354abfc6ced57f664c6.
  • Signing: ad-hoc signed and not Apple-notarized.
  • Download, update manifest, and this changelog share one catalog.

Download

  • Download v0.5 from usesynth.ai/download.
  • Verify the ZIP against the SHA-256 above before opening it.
  • Release history: usesynth.ai/workshop/releases.
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