v3.3.0a0

argo-proxy 3.3.0a0 — Gateway Migration (Pre-release)

Breaking change: aiohttp is no longer a dependency. The HTTP server and upstream transport are now provided by llm-rosetta's gateway module (zero external HTTP deps).

Highlights

• Zero-dep HTTP stack — vendored httpserver (server) + httpclient (upstream), no more aiohttp
• ~2400 lines removed — dispatch.py, passthrough.py, performance.py, image_processing.py, dev_proxy.py replaced by gateway pipeline + 3 thin ARGO override layers
• New architecture — bridge.py (config adapter), auth.py (credential passthrough), transport.py (ArgoTransport with auth warning detection + anthropic_stream_mode retry)
• All 4 API formats verified — OpenAI Chat, OpenAI Responses, Anthropic Messages, Google GenAI
• agentabi E2E matrix — 115/116 passed (4 agents × 29 models)

Migration notes

• Config format unchanged (YAML) — no user action needed
• anthropic_stream_mode (force/retry/passthrough) preserved
• ARGO auth warning detection preserved
• Username passthrough preserved
• --dev passthrough mode → added in v3.3.0a1

Test matrix

Agent	Inbound Format	Result
codex	OpenAI Chat/Responses	29/29
opencode	OpenAI Chat	29/29
claude_code	Anthropic Messages	28/29
gemini_cli	Google GenAI	29/29

Full Changelog: v3.2.3...v3.3.0a0