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Open Source changelog digest

Oct 20 - Oct 26, 2025. Useful releases, risky migrations, and noisy updates from the Open Source channel.

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Open Source updates in 2025-w43

2025-10-20, Version 22.21.0 'Jod' (LTS), @aduh95

  • Added built‑in proxy support (CLI env proxy, HTTP/HTTPS request and Agent) and a new `shouldUpgradeCallback` for server‑controlled HTTP upgrades.
  • Introduced percentage‑based `max_old_space_size` configuration and various performance optimizations across the runtime.
  • Extended documentation (proxy usage, .env files, migration guides, security escalation policy) and updated key dependencies (OpenSSL 3.5.x, Undici 6.22.0, npm 10.9.4).