Agent Collab v6.0.0

6.0.0 — 2026-10-22

• Breaking: require Python 3.11 or newer. Python 3.10 reached end of life on 2026-10-01, and doctor now flags it. CI tests the oldest supported release, 3.11, and the latest stable, 3.15.
• Breaking: accept only ASCII decimal numbers for AGENT_COLLAB_TIMEOUT_SECONDS and every numeric command-line flag, as integer settings already required; Unicode digits, underscores, and exponents are rejected.
• start refuses a Git repository when git is not on PATH instead of moving the worktree guard out of the repository, where it would not exclude a run started with Git available.
• Pin Codex agents.max_depth=1 for models on multi-agent V1, which still expose per-spawn model and effort overrides, and drop the legacy features.memory_tool alias; features.memories=false already disables memory.
• Raise Claude hook timeouts from 5 to 30 seconds, so a slow interpreter start on Windows or macOS neither blocks a legitimate Agent call nor loses Stop effort evidence.
• Name the actual deadline in timeout results instead of AGENT_COLLAB_TIMEOUT_SECONDS.
• Write skill commands with literal placeholders instead of shell variables, so they also run in PowerShell, where $host is reserved.
• Move CI to actions/checkout@v7 and actions/setup-python@v7, which run on Node.js 24, and require the latest stable release of every selected dependency in AGENTS.md.
• Correct the documentation against the implementation and current Claude Code and Codex documentation: the isolated workspace's fresh /tmp, minimal /dev, and which sockets stay reachable; credential paths; the startup gates' scope; macOS Codex safe mode; multi-agent V1 overrides; the effective Codex ultra effort; mods as a spawn channel outside the Agent counter; Claude Code's refusal of bypassPermissions as root; WinGet updates; and the workflow and agent-team environment pins.