mod_h[ttp]2 v1.6.0

• handling graceful shutdown gracefully, e.g. processing existing streams to the end.
• h2 status resource follows latest draft, see
  http://www.ietf.org/id/draft-benfield-http2-debug-state-01.txt
  Configure it as

   <Location "/.well-known/h2/state">
        SetHandler http2-status
    </Location>

• support for 'Expect: 100-continue' handling

mod_h[ttp]2 v1.5.13

• new H2CopyFiles directive that changes treatment of file handles in
  responses. Necessary in order to fix broken lifetime handling in modules
  such as mod_wsgi. Use H2CopyFiles off where ever you need it. Should fix issue #110.

• removing timeouts on master connection while requests are being processed.
  Requests may timeout, but the master only times out when no more requests
  are active.

  This addresses the problem that you want a decent timeout for read/write operations, but have a web application that might take longer to produce a response.

mod_h[ttp]2 v1.5.12

• fixed connection flushing when handling SETTINGS and no stream is open. (thanks @matsumoto-r)
• fix for request abort when connections drops, introduced in 1.5.8
• more rigid error handling in DATA frame assembly, leading
  to deterministic connection errors if assembly fails.

mod_h[ttp]2 v1.5.10

• fixed bug in error handling when passing DATA frames.

mod_h[ttp]2 v1.5.9

• more strict error handling and logging in DATA frame assembly.

mod_h[ttp]2 v1.5.8

• mod_http2: improved cleanup of connection/streams/tasks to always have deterministic order regardless of event initiating it. Addresses reported crashes due to memory read after free issues.

mod_h[ttp]2 v1.5.7

• fixed read after free on certain conditions when clients abort connections
• fixed connection shutdown when stream tasks block on reads

mod_h[ttp]2 v1.5.6

• fixed possible null pointer reference in new bucket beams during read on an aborted beam
• improved event handling on master connection (idle/submit/wait) to increase performance

mod_h[ttp]2 v1.5.5

• Fix async write issue that sometimes led to selection of wrong timeout
  vs. keepalive timeout selection for idle sessions.
• Checking LimitRequestLine, LimitRequestFields and
  LimitRequestFieldSize configurated values for incoming streams. Returning
  HTTP status 431 for too long/many headers fields and 414 for a too long
  pseudo header.
• Tracking conn_rec->current_thread on slave connections, so
  that mod_lua finds the correct one. Fixes PR 59542.
• c->aborted also set for slave connections when main connection is closed by client

mod_h[ttp]2 v1.5.3

• slave connections have conn_rec->aborted flag set when a stream
  has been reset by the client.
• Small fixes in bucket beams when forwarding file buckets. Output handling
  on master connection uses less FLUSH and passes automatically when more
  than half of H2StreamMaxMemSize bytes have accumulated.
  Workaround for http: when forwarding partial file buckets to keep the
  output filter from closing these too early.
• elimination of fixed master connectin buffer for TLS connections. New
  scratch bucket handling optimized for TLS write sizes.
  File bucket data read directly into scratch buffers, avoiding one
  copy. Non-TLS connections continue to pass buckets unchanged to the core
  filters to allow sendfile() usage.
• h2_request.c is no longer shared between these modules. This simplifies
  building on platforms such as Windows, as module reference used in
  logging is now clear.