Release 0.2.1

[renmengye]

Version, citation and changelog for 0.2.1, following RELEASING.md step 2. The release covers everything merged since 0.2.0 (#409 to #429).

Persisted-state checklist (RELEASING.md step 1)

The PRs that change state read across kernel versions each carry a compatibility statement, a fixture or tolerance, and an Upgrading line. They are:

• The leaderboard lives on research-log: pending at publish, confirmed at merge #419: ledger on research-log.
• The author may fold a moved base with one merge commit #421: base-moved message key.
• Kernel messages render as the kernel's instructions, not as data #424: quoted_text in inbox messages.
• An author can withdraw a superseded PR with end --withdraw #425: withdraw_reason on the run record.
• The sweep re-asks the ancestry question and observes its own merges in the same tick #428: blessing fields on the run record.
• An author's report-only answer to the panel updates the PR; a cleared draft becomes ready #429: report_only in the publish journal.

#419 predates the rule; its Upgrading lines were written in #423. The full test suite, including those fixtures, passes on this head: 2144 passed, 9 serial.

Soak on Torch

Proven live:

• The ledger path, publish → pending → merge → confirm: speedrun Design: fail-safe wake delivery #23, Phase 4: compute seam, run-state machine, fail-safe tick, chain shim #27, Design: environments and containers on Torch #28.
• The fold after a moved base: Design: fail-safe wake delivery #23.
• Withdrawal: Design sketch: planned search, experiment ladder, multi-agent scaling #25.
• Blessing on a research line, including self-merge: Design: environments and containers on Torch #28.
• Clean ticks on every new main.

Not exercised live yet:

• The sweep re-bless (The sweep re-asks the ancestry question and observes its own merges in the same tick #428) and report-only updates (An author's report-only answer to the panel updates the PR; a cleared draft becomes ready #429), which are covered by tests. Speedrun Phase 5 core: contained sessions + single-benchmark climb (tsp first) #29's pending gate should exercise An author's report-only answer to the panel updates the PR; a cleared draft becomes ready #429.
• A LocalCompute publish-to-merge cycle on cluster0.

Changelog edits

Two entries described fixes to features first shipped in this release, so a 0.2.0 user never saw those bugs; they are dropped. Blank lines between bullets are tidied.

After merge: tag v0.2.1, watch the release workflow, install in a fresh venv, then create the GitHub release.

🤖 Generated with Claude Code

[github-actions]

Round 1 — reviewed head 8f0ffa50 — reviewer summarizer:hermes/gpt-5.6-terra over coverage+credentials+deployment+general+lifecycle+prose.

terra
Advisory findings from outerloop — the code owner decides. Reply to disagree; the outerloop:no-review label opts this PR out.

Verdict: no defects found.

No findings were proposed by any review lens. Rejected findings: none.