release aidev SIG 3/5

Hermes Agent v0.20.3: patch rollup of ~125 PRs including MCP 2.x, bot mode, cron self-heal

Patch release bundling ~125 merged PRs since v0.20.2 into a stable tag. Notable changes include the MCP 2.x SDK migration, stateless protocol support, a bundled Bot Mode plugin with teammate protocol, the CommandCode provider plugin, Python subprocess isolation, Cua Driver 0.20, cron scheduler self-healing (EMFILE, stale-claim, wedged-job recovery), and session handoff data-loss fixes. Full curated release notes deferred to v0.21.0.

PUBLISHED2026-08-17
OBSERVED2026-08-21
AGE8d
SOURCES1
  • MCP 2.x SDK migration and 2026-07-28 stateless protocol support
  • Bot Mode plugin (hermes-bots) bundled with core teammate protocol
  • CommandCode provider plugin
  • Python subprocess hardening: PYTHONHOME/PYTHONPATH isolation
  • Cua Driver 0.20 runtime contracts for computer use
  • Kanban worktree/dispatch fixes
  • Cron continuity flags and scheduler self-heal (EMFILE recovery, stale-claim reconciliation, wedged-job re-arm)
  • Desktop remote-gateway headers and connection self-healing
  • Session handoff data-loss fixes
  • Ecosystem scout ports: plugin install security scanning, /worktree, /rollback hand-edit preservation, UTF-16 file reads, Gemini 3 tool-call ID preservation
  • Full curated notes promised with v0.21.0

COMMUNITY

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