mod_h2 v1.15.22

• NOTE: this is a recommended update for anyone running v1.15.21.
• Added a timeout to h2 worker cleanup to exit latest after 5 seconds of
  waiting on idle workers to terminate. This happens after all connections
  have been processed. a WARNING is logged in case workers lagged behind.
  This may happen in busy situations or depending on configurations that
  have slow responses.
  This fixes #212, many thanks to @famzah for his testing and feedback!
• H2 sessions normally log a warning when the connection is torn down
  without them being able to send a last GOAWAY frame. This logging
  happens at DEBUG level during the stopping of a child process.
• configure now checks for apache2ctl if apachectl was not found.
  This fixes #218.
• configure now longer errors when no apachectl was found but warns
  that the test suite will not work.
• The test suite now clears Apache's error log on start and checks after
  the run if unexpected errors or warnings were logged.
• Added top level make target docker-test to run all defined test images.
  This closes #217.

mod_h2 v1.15.21

• Making h2 connection "mood swings" to ignore clients resetting
  requests which have at least produced the response headers and
  one DATA chunk. This targets long-running requests like
  websockets and server-side-events (SSE), where a RST_STREAM
  ius the cleint's only option of terminating such requests.
  With this change, clients are no longer punished for it.
  See also: https://bz.apache.org/bugzilla/show_bug.cgi?id=65402
  (background: "mood swings" influence how many resources are
  available to a connection, e.g. how many h2 workers may be
  working for it at a given point in time.)
• Making H2Min/MaxWorkers behave as intended again. The module will initially
  create H2MinWorkers threads and add up to H2MaxWorkers when needed. These
  additional workers time out when idle after H2MaxWorkerIdleSeconds and
  disappear again.
• When the shutdown of a child is detected (e.g. graceful shutdown), the
  module will terminate all idle workers above H2MinWorkers right away.
  This detection currently only happens when a HTTP/2 connection is active.
  See also #212.
• Restoring compatibility with apache httpd 2.4.48 again.
• Adding a docker image for testing on archlinux. Use:

   > docker-compose build archlinux
   > docker-compose run archlinux

• Adding a docker image for testing on Debian 'sid'. Use:

   > docker-compose build debian-sid
   > docker-compose run debian-sid

mod-h2 v1.15.20 (BROKEN)

• BROKEN, relies on changes in Apache httpd 2.4.49, sorry about that.
• Align handling of 304 response headers with behaviour of http/1.1. [ylavic]
• now shares code with http/1.1 protocol implementation
  for checking validity of methods and other request parameter. [ylavic]

mod-h2 v1.15.19

• Fixed the Makefile to include the test module in the distribution, so that
  tests can be build an run from the tar file. Fixes #210.

mod-h2 v1.15.18

• Fixed a race condition that could lead to streams being aborted
  (RST to the client), although a response had been produced.

mod_h2 v1.15.17

• Integrated changes from Apache trunk.
• Log requests and sent the configured error response in case of early detected
  errors like too many or too long headers. [Ruediger Pluem]
• added test for buffering across a mod_http2+mod_proxy_http2 connection
• added TRACE2 logging to show buffering flag when writing task output
• new option 'H2OutputBuffering on/off' which controls the buffering of stream output.
  The default is on, which is the behaviour of older mod-h2 versions. When off, all
  bytes are made available immediately to the main connection for sending them
  out to the client. This fixes interop issues with certain flavours of gRPC, see
  als #207.
• Eliminated some Python deprecation warnings in test code.

mod-h2 v1.15.16

• Fixed reporting of transferred bytes for mod_logio for modifiers %O (and %S) to
  report the number of transferred header and body lengths. This is still only
  an approximation of the bytes on the connection. The data is subject to header
  compression and h2 framing afterwards. Grain of salt. Fixes #203.

mod-h2 v1.15.14

• Removing support for abandoned draft of http-wg regarding cache-digests.
• in sync with Apache httpd 2.4.46

mod-h2 v1.15.13

• Fixes #200: "LimitRequestFields 0" now disables the limit, as documented.

mod-h2 v1.15.12

• Fixes #201: do not count repeated headers with same name against the field
  count limit. The are merged internally, as if sent in a single HTTP/1 line.
• Refrain from detecting (intermediate) responses, when the connection has
  already been aborted or non-flush meta buckets are encountered.
• Changed terminology to master/secondary connections in the source.
• Test against the installed version of the module. This allows test cases
  to work with other versions.