029acd9158
* fix(#4434): win32 unmeasured test files weigh the documented ~2.2x Windows-cost floor, not the Linux-measured mean test(#4434): failing-first — win32 unmeasured-file weight must use the documented Windows-cost multiplier, not the plain table mean fix(#4434): makeFileWeigher takes a platform and applies WINDOWS_UNMEASURED_COST_MULTIPLIER (2.2) to the unmeasured-file fallback on win32 only; measured files and other platforms are unaffected chore(#4434): changeset fragment Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * test(#4434): add fast-check property coverage for the win32 unmeasured-file weight multiplier CLAUDE.md requires a fast-check property test for budget-limit logic; the prior example-based #4434 tests didn't satisfy that. Adds two seeded, bounded property tests: the unmeasured-file fallback matches the platform rule for any measured table, and a measured file's weight is platform-invariant for any measured table. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * chore(#4434): backfill changeset PR number (4903) Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(#4434): the Windows unmeasured-file multiplier must not apply when there is no timings table at all Real Windows CI on this PR caught a regression my own linux-only gsd-test verification couldn't see: makeFileWeigher applied WINDOWS_UNMEASURED_COST_MULTIPLIER even when `timings` is null (missing/ corrupt/empty table), breaking the pre-#2456 "no table degrades to uniform weight 1" invariant several existing tests depend on. The multiplier now only applies to a file absent from an otherwise-loaded table — the actual #4434 mechanism (a real, loaded, Linux-measured table with unmeasured entries) — never to the no-table-at-all path. Six pre-existing tests that called makeFileWeigher/pack helpers with no explicit platform (silently inheriting whatever OS runs them) now pin an explicit 'linux' platform, since they test the platform-agnostic mean-vs- median and Object.prototype-safety invariants, not #4434's Windows behavior. One subprocess-level test is isolated from the real committed tests/test-timings.json via RUN_TESTS_TIMINGS_FILE, matching this file's existing isolation convention for cost-profile-sensitive assertions. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
Changeset Fragments
This directory holds per-PR CHANGELOG fragments. Every PR with user-facing changes drops one (or more) <random-name>.md files here describing its CHANGELOG entry. Fragments are consolidated into the top-level CHANGELOG.md at release time.
Why
Two PRs that both edit the ### Fixed block of CHANGELOG.md always conflict on merge — git can't pick a serialization order without human input. Two PRs that each add a fresh .changeset/<unique-name>.md never conflict because they don't share lines.
See #2975 for the full rationale.
Adding a fragment
node scripts/changeset/new.cjs \
--type Fixed \
--pr 1234 \
--body "fix the thing — explain the user-visible change in one sentence"
This writes .changeset/<adjective>-<noun>-<noun>.md with frontmatter and a body. Three random words → concurrent PRs don't collide.
Format
---
type: Fixed
pr: 1234
---
**`/gsd-foo` no longer drops trailing slashes** — explain the user-visible change.
Allowed type: values follow Keep a Changelog: Added, Changed, Deprecated, Removed, Fixed, Security.
Opting out
PRs that legitimately have no user-facing impact can add the no-changelog label. CI honors it. When unsure, add the fragment.
At release time
Promotion is automatic. The release workflow's finalize job runs:
node scripts/changeset/cli.cjs render --version vX.Y.Z --date YYYY-MM-DD --allow-empty
This reads every fragment, groups bullets by type:, replaces ## [Unreleased] with a new ## [vX.Y.Z] - YYYY-MM-DD block, opens a fresh ## [Unreleased] above, and deletes consumed fragments. The --allow-empty flag ensures a no-change release still gets a dated heading (with a _No notable changes._ placeholder). A subsequent verify step confirms the promotion landed correctly. Maintainers do not run this by hand.
Archived fragments
.changeset/archived/ holds fragments for already-shipped releases (≤ 1.3.1), retained for provenance. Their content was hand-curated into the dated ## [1.x.y] sections of CHANGELOG.md during the #690 backfill — they were never consumed by render. All changeset tooling enumerates .changeset/ non-recursively, so archived fragments are never picked up or rendered. Do not move them back to the top level.