mod_h[ttp]2 v1.10.4

• mod_proxy_http2: adding support for Reverse Proxy Request headers.

mod_h[ttp]2 v1.10.3

• fixed possible deadlock that could occur when connections were
  terminated early with ongoing streams. Fixed possible hanger with timeout
  on race when connection considers itself idle.

mod_h[ttp]2 v1.10.2

• MaxKeepAliveRequests now limits the number of times a
  slave connection gets reused.
• Client streams that lack the EOF flag get now forcefully
  closed with a RST_STREAM (NO_ERROR) when the request has been answered.
• Only when 'HttpProtocolOptions Unsafe' is configured, will
  control characters in response headers or trailers be forwarded to the
  client. Otherwise, in the default configuration, a request will eiher
  fail with status 500 or the stream will be reset by a RST_STREAM frame.

mod_h[ttp]2 v1.10.1

• Fixed bug in re-attempting proxy requests after connection error.
  Reliability of reconnect handling improved.
• Fixed two rare deadlocks with new non-nested mutex use.
• No longer mapping Link: header urls in proxy requests when preserve host
  is set.

mod_h[ttp]2 v1.10.0

• better performance, eliminated need for nested locks and
  thread privates. Moving request setups from the main connection to the
  worker threads. Increase number of spare connections kept.
• input buffering and dynamic flow windows for increased
  throughput. Requires nghttp2 >= v1.5.0 features. Announced at startup
  in mod_http2 INFO log as feature 'DWINS'.
• h2 workers with improved scalability for better scheduling
  performance. There are H2MaxWorkers threads created at start and the
  number is kept constant for now.
• obsoleted option H2SessionExtraFiles, will be ignored and
  just log a warning.
• fixed PR60869 by making h2 workers exit explicitly waking up
  all threads to exit in a defined way.

mod_h[ttp]2 v1.9.3

• moving session cleanup to pre_close hook to avoid races with
  modules already shut down and slave connections still operating.
• stream timeouts now change to vhost values once the request
  is parsed and processing starts. Initial values are taken from base
  server or SNI host as before.
• fixed retry behaviour for http2 proxy connections when frontend
  connection uses http/1.1.
• separate mutex instances for each bucket beam, resulting in
  less lock contention. input beams only created when necessary.

mod_h[ttp]2 v1.9.2

• mod_http2: adding allocator mutex to session pool due to reports of rare
  crashes.

mod_h[ttp]2 v1.9.1

• mod_proxy_http2: support for ProxyPreserveHost directive

mod_h[ttp]2 v1.9.0

• not counting file buckets again stream max buffer limits.
  Effectively transfering static files in one step from slave to master
  connection.
• mod_http2: comforting ap_check_pipeline() on slave connections
  to facilitate reuse (see #128).
  [reported by Armin Abfalterer]
• mod_http2: http/2 streams now with state handling/transitions as defined
  in RFC7540. Stream cleanup/connection shutdown reworked to become easier
  to understand/maintain/debug. Added many asserts on state and cleanup
  transitions.

mod_h[ttp]2 v1.8.11

• regression fix on bugzilla PR 59348, on graceful restart, ongoing
  streams are finished normally before the final GOAWAY is sent.
• do not attempt to generated a response on an already aborted slave connection
• fix potential double cleanup of bucket beam memory