0.5.2

What's Changed

• Add GPT-5.6 models by @piscue in #438
• Chore: Add API breakage gate, platform CI matrix and changelog (Phase 0) by @Krivoblotsky in #440
• Chore/sync latest openapi spec by @nezhyborets in #443
• Update copyright holder to MacPaw Way Ltd. by @ivira in #450
• Migrate Demo to ExyteChat 3.x and unblock the build on Xcode 27 by @nezhyborets in #448
• Fix Demo crashes on reasoning-model and web-search Responses requests by @nezhyborets in #451
• Filter models by MCP tool support, add GPT-6 models via ModelSpec, update Demo defaults by @nezhyborets in #453
• Bug: Add matching encode(to:) to ResponseStreamEvent and OutputItem by @taekop in #454
• Add provider configuration to Demo by @GtechGovind in #442
• feat: Add response cancellation, retrieval, and context management by @tqtifnypmb in #445
• Add GPT-5.6 ModelSpecs, per-chat model selection in Demo, and a Demo release-check skill by @nezhyborets in #456

New Contributors

• @ivira made their first contribution in #450
• @taekop made their first contribution in #454
• @GtechGovind made their first contribution in #442
• @tqtifnypmb made their first contribution in #445

Full Changelog: 0.5.1...0.5.2