Issues

• Interleaved non-final empty DATA frames exhaust the lifetime counter in 0.4.19

  hyperium/h2#964 · Filter by author lixing-lx opened on Oct 3, 2026
  1

• Cannot download files from GCP

  hyperium/h2#961 · Filter by author nicoburns opened on Sep 26, 2026
  2

• Proposal: add support for Extension frames

  hyperium/h2#952 · Filter by author howardjohn opened on Sep 2, 2026
  2

• Proposal: enable an HTTP/2 header-block read timeout

  hyperium/h2#928 · Filter by author infiniteregrets opened on Aug 3, 2026
  1

• Sending and receiving data frames introduces significant overhead

  hyperium/h2#902 · Filter by author NedAnd1 opened on May 5, 2026
  1

• load_hpack takes ~9% of total CPU at high request rates

  hyperium/h2#883 · Filter by author aryehlev opened on Mar 30, 2026
  3

• RecvStream::is_end_stream() is never true. RecvStream::data() never returns None

  hyperium/h2#882 · Filter by author EmilyShepherd opened on Mar 28, 2026
  1

• Implicit RST_STREAM blocked until buffered DATA is fully drained

  hyperium/h2#880 · Filter by author mmishra100 opened on Mar 25, 2026
  1

• Streaming latency spikes: receive loop processes all buffered frames before yielding

  hyperium/h2#879 · Filter by author SeaOtocinclus opened on Mar 5, 2026
  2

• try_assign_capacity triggers debug assertion

  hyperium/h2#878 · Filter by author phu-cinemo opened on Feb 25, 2026
  2

• Outbound HTTP/2 frames can emit conflicting :authority and host headers

  hyperium/h2#876 · Filter by author magurotuna opened on Feb 12, 2026

• h2::Error hides IO error

  hyperium/h2#862 · Filter by author konstin opened on Sep 4, 2025
  2

• Increasing window_size above initial_window_size

  hyperium/h2#857 · Filter by author DjordjeNikolasevic opened on Aug 6, 2025

• Logical connection deadlock occurs under high concurrency - outgoing data transmission stops

  hyperium/h2#853 · Filter by author sandersaares opened on Jul 22, 2025

• SendStream::ready() behaviour does match documentation (always return immediately as Ready)

  hyperium/h2#848 · Filter by author muhamadazmy opened on Jun 26, 2025
  1

• Server sends GoAway to closed connection (resulting in errors on macos/bsd)

  hyperium/h2#843 · Filter by author soundofspace opened on Apr 18, 2025

• Extend hpack mod visibility in 'unstable' feature set

  hyperium/h2#828 · Filter by author cfircohen opened on Jan 2, 2025
  3

• Add options to set h2 keepalive_timeout?

  hyperium/h2#826 · Filter by author taikulawo opened on Dec 24, 2024
  8

• Is there a way to configure h2 client_header_timeout?

  hyperium/h2#823 · Filter by author taikulawo opened on Dec 5, 2024
  2

• Push_promise seems to be stuck

  hyperium/h2#811 · Filter by author DjordjeNikolasevic opened on Nov 6, 2024
  3

• Akamai example is broken on negotiated ALPN

  hyperium/h2#808 · Filter by author GlenDC opened on Nov 4, 2024

• Tolerate send_open() at Closed state?

  hyperium/h2#803 · Filter by author vilicvane opened on Oct 14, 2024
  2

• unexpected window size impact on tls conncetions with h2 large uploads

  hyperium/h2#797 · Filter by author port8080 opened on Aug 28, 2024
  3

• Allow disabling header compression

  hyperium/h2#780 · Filter by author xuorig opened on May 18, 2024
  4

• Allow max_concurrent_reset_streams>0 on browser environments

  hyperium/h2#779 · Filter by author Mubelotix opened on May 12, 2024