v0.09

• Enhancement: Return a useful error if attempting to use a unix domain socket without a Host header.
• Bugfix: Don't attempt to keepalive a http 1.0 connection with no Connection header (Thanks @guanglinlv for the report).
• Bugfix: Only look for a single 's' in the scheme, and report the uri in any URI parsing errors.
• Bugfix: _handle_continue return value order didn't match with expectation. (Thanks @DilipSimha for the report).

v0.08

• When the Host header is created automatically, we now add the port if the port is non-standard for the scheme. Thanks @therealcmj
• The "reason phrase" is now returned alongside the status code. Thanks @ericl

v0.07

Bugfix: Error handling for when buffer_size isn't set when resuming the body_reader.
Bugfix: Spaces now properly encoded in proxied URIs
Bugfix: A missing path now properly defaults to "/". Thanks @membphis
Bugfix: proxy_response now checks the result of ngx.print, and breaks the loop on error. Thanks @vovapi
Docs: Example code didn't require the module. Thanks @zweite

v0.06

• Bugfix: Fixed Makefile paths (thanks Vijay Panghal)
• Feature: Allow passing a pre-established socket to get_client_body_reader (thanks @kipras)
• Bugfix: Header field pattern matching expanded to a broader range of characters (thanks @kipras)
• Feature: Changed User-Agent format to be more verbose.

v0.05

• Headers are now normalised for case, both request headers passed in and response headers received (thanks @mikz for the report)
• Response headers received with multiple matching field names are now presented as a table of values rather than concatenated, as this caused issues with Set-Cookie and potentially other cases. Note that when evaluating headers you must now consider the type could either be a table or a string. (Thanks to @ngo for the original pull request / suggestion).

v0.04

• SSL cosocket support (thanks @hamishforbes).
• Improved error handling around pipelined responses and timeouts.
• Reset flags between requests so that an instance can safely be reused.
• More gracefully handle attempts to use the client body reader during a subrequest.
• Added proxy_request and proxy_response functions.
• Various documentation improvements.

v0.03

• set_keepalive now returns 2 if the connection was intentionally closed, to distinguish from actual errors.
• Merged pull request from @hamishforbes adding support for "100 Continue" responses.
• Merged pull request from @hamishforbes allowing request bodies to optionally be an iterator function to stream in large bodies.
• Merged pull request from @hamishforbes adding get_client_body_reader utility, which returns an iterator for the current client upstream request body.
• res.body_reader is now always a function, even if there is no body to be read.
• Added res.has_body boolean flag.
• Implemented streaming for HTTP 1.0 responses where no length is advertised. (Thanks @oikomi for the feature request).
• Fixed issue where body readers only honoured the initial chunk size. (Thanks @oikomi for the report).
• Added support for HTTP pipelining.

v0.02

• Detect socket read errors when reading status and headers.
• Added keepalive logic.
• Fixed keepalive assumptions in the simple interface.
• Reimplemented coroutine.wrap to return nil on error, protecting user code from accidental infinite loops.