chore: release v0.0.40

[sw-release-bot]

🤖 New release

• structured-zstd: 0.0.39 -> 0.0.40

Changelog

0.0.40 - 2026-06-15

Performance

• (huff0) hoist bit-stream state into locals in the encode loop (#423)
• borrowed in-place over-window scan for dfast + row + btlazy2 (#422)
• (encode) cap HC/BT history mirror near the live window (#421)
• (encode) cap dfast history buffer near the live window (#420)
• (encode) cap row history buffer near the live window (#418)

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This PR was generated with release-plz.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[greptile-apps]

Greptile Summary

Automated release PR bumping structured-zstd from 0.0.39 to 0.0.40 and recording the corresponding changelog entry.

• Cargo.toml: single-line version field updated from 0.0.39 → 0.0.40.
• CHANGELOG.md: new 0.0.40 section added under [Unreleased], listing four encoder performance improvements (history-buffer capping for row, dfast, HC/BT, and an in-place over-window scan for dfast + row + btlazy2).

Confidence Score: 5/5

Purely a version bump and changelog update with no logic changes; straightforward to merge.

Only two files change: the version field in Cargo.toml and a new changelog block in CHANGELOG.md. There is no logic, no dependency changes, and no configuration that could regress at runtime.

No files require special attention.

Important Files Changed

Filename	Overview
zstd/Cargo.toml	Version bump from 0.0.39 to 0.0.40; no other changes.
zstd/CHANGELOG.md	Adds 0.0.40 changelog entry documenting four performance improvements merged in PRs #418–#422.

_{Reviews (1): Last reviewed commit: "chore: release v0.0.40" | Re-trigger Greptile}