Issues

• HTTP/2 body pipe sends 1-byte DATA frames when a stream holds a sliver of capacity

  hyperium/hyper#4211 · Filter by author jeremyjpj0916 opened on Sep 30, 2026

• Upgraded HTTP/2 CONNECT streams cannot be reset, so a failed tunnel looks like a clean close

  hyperium/hyper#4209 · Filter by author jeremyjpj0916 opened on Sep 28, 2026

• HTTP/1 client: SendRequest::is_ready() can stay true while a request is in flight

  hyperium/hyper#4207 · Filter by author shodoco opened on Sep 28, 2026

• hyper-util legacy client: an HTTP/1 request can hang forever when the connection closes while the request is being queued

  hyperium/hyper#4202 · Filter by author jeremyjpj0916 opened on Sep 24, 2026

• Allow connection pools to stop reusing an HTTP/2 connection before its keep-alive timeout

  C-feature
  hyperium/hyper#4186 · Filter by author jiahaoliang opened on Sep 10, 2026
  1

• HTTP/1 client connection is never closed or pooled when a response completes while the request body is still unsent ((Reading::KeepAlive, Writing::Body) is a terminal state)

  C-bugS-waiting-on-author
  hyperium/hyper#4176 · Filter by author BlackRabbitCoder opened on Aug 28, 2026
  4

  

• Change graceful_shutdown function behavior PR can cause tonic servers to hang serve_with_incoming_shutdown in two different cases

  A-http2C-bug
  hyperium/hyper#4170 · Filter by author chamons opened on Aug 27, 2026
  4

  

• Body dropped too late when an h1 handshake hits an error

  C-bug
  hyperium/hyper#4122 · Filter by author alexcrichton opened on Jul 2, 2026
  5

• HTTP CONNECT proxy tunnel has lax response parsing and loses early data

  A-clientC-bugE-pr-welcomeK-hyper-util
  hyperium/hyper#4095 · Filter by author arjan-bal opened on Jun 3, 2026
  7

• Add a strict clippy config

  C-refactorE-easyE-pr-welcome
  hyperium/hyper#4071 · Filter by author seanmonstar opened on May 19, 2026
  

• Parsed Bytes in headers can pin large IO buffers in memory

  C-performanceE-pr-welcome
  hyperium/hyper#4060 · Filter by author sebadob opened on May 4, 2026
  19

  

• hyper-util pool: unnamable types are hard to work with

  E-hardK-hyper-util
  hyperium/hyper#4059 · Filter by author Reza-Darius opened on May 4, 2026
  6

• Excessive per-connection memory cause by channel

  A-clientB-upstreamC-performanceS-blocked
  hyperium/hyper#4057 · Filter by author howardjohn opened on Apr 29, 2026
  5

• hyper_util: expose a timeout on ReadVersion in server::conn::auto

  A-serverC-featureE-pr-welcomeK-hyper-util
  hyperium/hyper#3962 · Filter by author howardjohn opened on Oct 7, 2025
  5

• Allow accepting new connections during a graceful shutdown

  B-rfcC-feature
  hyperium/hyper#3961 · Filter by author howardjohn opened on Oct 7, 2025
  2

• Making preserve_header_order option official

  C-featureS-waiting-on-author
  hyperium/hyper#3914 · Filter by author heiwais25 opened on Jul 14, 2025
  11

• Allow customizing the server's default error response

  A-http1A-serverC-featureE-medium
  hyperium/hyper#3844 · Filter by author stevenj opened on Jan 31, 2025
  6

• hyper-util's "client-legacy" feature forces use of mio, but wasn't required in hyper 0.14.x

  A-clientC-bugE-pr-welcomeK-hyper-util
  hyperium/hyper#3842 · Filter by author erickt opened on Jan 29, 2025
  3

• hyper-util: get info about if the connection is reused in Connected

  A-clientC-featureK-hyper-util
  hyperium/hyper#3835 · Filter by author zino299792 opened on Jan 20, 2025
  2

• Allow option to allow spaces after header name for requests

  C-featureE-pr-welcome
  hyperium/hyper#3834 · Filter by author SnehaGithub opened on Jan 17, 2025
  1

• Add hyper-util helpers to support handling expect: 100-continue header

  C-featureE-pr-welcomeK-hyper-util
  hyperium/hyper#3833 · Filter by author heiwais25 opened on Jan 17, 2025
  9

• Add HTTP/1 max header size limit

  A-http1A-serverC-featureE-mediumE-pr-welcome
  hyperium/hyper#3832 · Filter by author myyrakle opened on Jan 16, 2025
  2

• hyper-util: client connection pool won't clean expired connections after system sleep

  B-upstreamC-bug
  hyperium/hyper#3810 · Filter by author DiscreteTom opened on Dec 13, 2024
  1

• Gracefully shutting down a TLS server sometimes leads to the client not receiving a response

  C-bug
  hyperium/hyper#3792 · Filter by author chinedufn opened on Nov 23, 2024
  13

• hyper-util: Limit number of connections in Pool

  C-featureK-hyper-util
  hyperium/hyper#3785 · Filter by author kuznetsss opened on Nov 17, 2024