chore(deps): bump h2 from 0.4.14 to 0.4.16

[dependabot]

Bumps h2 from 0.4.14 to 0.4.16.

Release notes

Sourced from h2's releases.

v0.4.16

What's Changed

• fix: error instead of busy-looping when write returns Ok(0) by @​ArniDagur in hyperium/h2#921
• Revert "perf(header): optimize HeaderValue creation via zero-copy sharing" by @​0x676e67 in hyperium/h2#924
• fix: preserve received END_STREAM across HTTP/2 stream resets by @​howardjohn in hyperium/h2#922
• streams: reject connection-specific header fields in send_trailers (RFC 9113 §8.2.2) by @​scadastrangelove in hyperium/h2#925
• perf: optimize HPACK decoding with 8-bit tables by @​seanmonstar in hyperium/h2#926
• Avoid flushing h2 socket while holding stream locks by @​brentechols in hyperium/h2#918
• perf: reuse HPACK encode buffer across frames by @​dorianverlaine in hyperium/h2#929
• fix: CI failure on nightly due to deprecated std::usize and std::u32 use by @​ArniDagur in hyperium/h2#932
• fix: Missed wakeup in poll_trailers by @​ArniDagur in hyperium/h2#931
• fix: Release flow control capacity when RecvStream is dropped by @​ArniDagur in hyperium/h2#930
• fix: limit excessive amount of small DATA frames by @​seanmonstar in hyperium/h2#935
• fix: prevent double counting pushed streams after 1xx responses by @​seanmonstar in hyperium/h2#936

New Contributors

• @​scadastrangelove made their first contribution in hyperium/h2#925
• @​brentechols made their first contribution in hyperium/h2#918
• @​dorianverlaine made their first contribution in hyperium/h2#929

Full Changelog: hyperium/h2@v0.4.15...v0.4.16

v0.4.15

What's Changed

• fix: Discard buffered DATA when a scheduled reset is pending by @​ArniDagur in hyperium/h2#896
• fix: poll_capacity must not return Ready(Some(Ok(0))) by @​ArniDagur in hyperium/h2#898
• fix: Reject frames on streams whose HEADERS haven't been sent by @​ArniDagur in hyperium/h2#899
• chore(ci): update actions/checkout to v6 by @​seanmonstar in hyperium/h2#910
• fix: Remove unnecessary clones by @​FranciscoTGouveia in hyperium/h2#911
• fix: use HeaderMap::try_append to prevent panics on absurd amounts of headers by @​imlk0 in hyperium/h2#909
• fix: ignore library resets at connection poll loop level by @​seanmonstar in hyperium/h2#913
• fix: remove padded_len() u8 overflow in DATA frame padding release by @​seanmonstar in hyperium/h2#914
• fix: close connection when header size is way too large by @​seanmonstar in hyperium/h2#915
• Prepare v0.4.15 by @​seanmonstar in hyperium/h2#916

New Contributors

• @​FranciscoTGouveia made their first contribution in hyperium/h2#911
• @​imlk0 made their first contribution in hyperium/h2#909

Full Changelog: hyperium/h2@v0.4.14...v0.4.15

Changelog

Sourced from h2's changelog.

0.4.16 (August 17, 2026)

• Fix limiting excessive amount of small DATA frames.
• Fix double counting pushed streams when receiving 1xx responses.
• Fix releasing of flow control capacity earlier, when RecvStream is dropped.
• Fix missed wakeup in poll_trailers.
• Fix extra memory retained when copying HeaderValues.
• Fix resets received after END_OF_STREAM to allow the data to still be received.
• Fix busy-looping when IO write returns 0 to mean connection closed.
• Optimize HPACK decoding tables from 4-bit states to 1-byte states.
• Optimize IO writing contention by not holding lock while flushing.

0.4.15 (June 15, 2026)

• Fix closing a connection when header size is "way too large" (currently x4 configured limit).
• Fix overflow calculating padding length if a DATA frame had 255 bytes of padding.
• Fix ignoring library-initiated resets in the connection state loop.
• Fix decoding panic with an absurd amount of headers and no limit to now use try_append().
• Fix rejecting frames on streams whose HEADERS have not been sent.
• Fix poll_capacity() to not return Some(Ok(0)).
• Fix discarding of buffered DATA frames when a reset is scheduled.

Commits

• b84b96c v0.4.16
• 3a241be fix: prevent double counting pushed streams after 1xx responses (#936)
• 193833e fix: limit excessive amount of small DATA frames (#935)
• c9d619c fix: Release flow control capacity when RecvStream is dropped (#930)
• 4549c4f fix: Missed wakeup in poll_trailers (#931)
• 8fea6b2 refactor: Update deprecated numeric constants (#932)
• 27b730e perf: reuse HPACK encode buffer across frames (#929)
• c2d3fb6 perf: avoid flushing h2 socket while holding stream locks (#918)
• e8da527 perf: optimize HPACK decoding with 8-bit tables
• ec5abb8 perf: add HPACK decoding benchmarks
• Additional commits viewable in compare view

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