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Changes with Unit 1.3                                            13 Jul 2018

    *) Change: UTF-8 characters are now allowed in request header field
       values.

    *) Feature: configuration of the request body size limit.

    *) Feature: configuration of various HTTP connection timeouts.

    *) Feature: Ruby module now automatically uses Bundler where possible.

    *) Feature: http.Flusher interface in Go module.

    *) Bugfix: various issues in HTTP connection errors handling.

    *) Bugfix: requests with body data might be handled incorrectly in PHP
       module.

    *) Bugfix: individual PHP configuration options specified via control
       API were reset to previous values after the first request in
       application process.


Changes with Unit 1.2                                            07 Jun 2018

    *) Feature: configuration of environment variables for application
       processes.

    *) Feature: customization of php.ini path.

    *) Feature: setting of individual PHP configuration options.

    *) Feature: configuration of execution arguments for Go applications.

    *) Bugfix: keep-alive connections might hang after reconfiguration.


Changes with Unit 1.1                                            26 Apr 2018

    *) Bugfix: Python applications that use the write() callable did not
       work.

    *) Bugfix: virtual environments created with Python 3.3 or above might
       not have worked.

    *) Bugfix: the request.Read() function in Go applications did not
       produce EOF when the whole body was read.

    *) Bugfix: a segmentation fault might have occurred while access log
       reopening.

    *) Bugfix: in parsing of IPv6 control socket addresses.

    *) Bugfix: loading of application modules was broken on OpenBSD.

    *) Bugfix: a segmentation fault might have occurred when there were two
       modules with the same type and version; the bug had appeared in 1.0.

    *) Bugfix: alerts "freed pointer points to non-freeble page" might have
       appeared in log on 32-bit platforms.


Changes with Unit 1.0                                            12 Apr 2018

    *) Change: configuration object moved into "/config/" path.

    *) Feature: basic access logging.

    *) Bugfix: 503 error occurred if Go application did not write response
       header or body.

    *) Bugfix: Ruby applications that use encoding conversions might not
       have worked.

    *) Bugfix: various stability issues.


Changes with Unit 0.7                                            22 Mar 2018

    *) Feature: Ruby application module.

    *) Bugfix: in discovering modules.

    *) Bugfix: various race conditions on reconfiguration and during
       shutting down.

    *) Bugfix: tabs and trailing spaces were not allowed in header fields
       values.

    *) Bugfix: a segmentation fault occurred in Python module if
       start_response() was called outside of WSGI callable.

    *) Bugfix: a segmentation fault might have occurred in PHP module if
       there was an error while initialization.


Changes with Unit 0.6                                            09 Feb 2018

    *) Bugfix: the main process died when the "type" application option
       contained version; the bug had appeared in 0.5.


Changes with Unit 0.5                                            08 Feb 2018

    *) Change: the "workers" application option was removed, the "processes"
       application option should be used instead.

    *) Feature: the "processes" application option with prefork and dynamic
       process management support.

    *) Feature: Perl application module.

    *) Bugfix: in reading client request body; the bug had appeared in 0.3.

    *) Bugfix: some Python applications might not have worked due to missing
       "wsgi.errors" environ variable.

    *) Bugfix: HTTP chunked responses might be encoded incorrectly on 32-bit
       platforms.

    *) Bugfix: infinite looping in HTTP parser.

    *) Bugfix: segmentation fault in router.


Changes with Unit 0.4                                            15 Jan 2018

    *) Feature: compatibility with DragonFly BSD.

    *) Feature: "configure php --lib-static" option.

    *) Bugfix: HTTP request body was not passed to application; the bug had
       appeared in 0.3.

    *) Bugfix: HTTP large header buffers allocation and deallocation fixed;
       the bug had appeared in 0.3.

    *) Bugfix: some PHP applications might not have worked with relative
       "root" path.


Changes with Unit 0.3                                            28 Dec 2017

    *) Change: the Go package name changed to "nginx/unit".

    *) Change: in the "limits.timeout" application option: application start
       time and time in queue now are not accounted.

    *) Feature: the "limits.requests" application option.

    *) Feature: application request processing latency optimization.

    *) Feature: HTTP keep-alive connections support.

    *) Feature: the "home" Python virtual environment configuration option.

    *) Feature: Python atexit hook support.

    *) Feature: various Go package improvements.

    *) Bugfix: various crashes fixed.


Changes with Unit 0.2                                            19 Oct 2017

    *) Feature: configuration persistence.

    *) Feature: improved handling of configuration errors.

    *) Feature: application "timeout" property.

    *) Bugfix: POST request for PHP were handled incorrectly.

    *) Bugfix: the router exited abnormally if all listeners had been
       deleted.

    *) Bugfix: the router crashed under load.

    *) Bugfix: memory leak in the router.


Changes with Unit 0.1                                            06 Sep 2017

    *) First public release.