<span id="news-2016"></span>
# Changelog - 2016

!!! note
    Please see [news](news.md) for the latest changes


## 19.6.0 / 2016/05/21

### Core & Logging

- improvement of the binary upgrade behaviour using USR2: remove file locking ([Issue #1270](https://github.com/benoitc/gunicorn/issues/1270))
- add the ``--capture-output`` setting to capture stdout/stderr tot the log
  file ([Issue #1271](https://github.com/benoitc/gunicorn/issues/1271))
- Allow disabling ``sendfile()`` via the ``SENDFILE`` environment variable
  ([Issue #1252](https://github.com/benoitc/gunicorn/issues/1252))
- fix reload under pycharm ([Issue #1129](https://github.com/benoitc/gunicorn/issues/1129))

### Workers

- fix: make sure to remove the signal from the worker pipe ([Issue #1269](https://github.com/benoitc/gunicorn/issues/1269))
- fix: **gthread** worker, handle removed socket in the select loop
  ([Issue #1258](https://github.com/benoitc/gunicorn/issues/1258))

## 19.5.0 / 2016/05/10

### Core

- fix: Ensure response to HEAD request won't have message body
- fix: lock domain socket and remove on last arbiter exit ([Issue #1220](https://github.com/benoitc/gunicorn/issues/1220))
- improvement: use EnvironmentError instead of socket.error ([Issue #939](https://github.com/benoitc/gunicorn/issues/939))
- add: new ``FORWARDED_ALLOW_IPS`` environment variable ([Issue #1205](https://github.com/benoitc/gunicorn/issues/1205))
- fix: infinite recursion when destroying sockets ([Issue #1219](https://github.com/benoitc/gunicorn/issues/1219))
- fix: close sockets on shutdown ([Issue #922](https://github.com/benoitc/gunicorn/issues/922))
- fix: clean up sys.exc_info calls to drop circular refs ([Issue #1228](https://github.com/benoitc/gunicorn/issues/1228))
- fix: do post_worker_init after load_wsgi ([Issue #1248](https://github.com/benoitc/gunicorn/issues/1248))

### Workers

- fix access logging in gaiohttp worker ([Issue #1193](https://github.com/benoitc/gunicorn/issues/1193))
- eventlet: handle QUIT in a new coroutine ([Issue #1217](https://github.com/benoitc/gunicorn/issues/1217))
- gevent: remove obsolete exception clauses in run ([Issue #1218](https://github.com/benoitc/gunicorn/issues/1218))
- tornado: fix extra "Server" response header ([Issue #1246](https://github.com/benoitc/gunicorn/issues/1246))
- fix: unblock the wait loop under python 3.5 in sync worker ([Issue #1256](https://github.com/benoitc/gunicorn/issues/1256))

### Logging

- fix: log message for listener reloading ([Issue #1181](https://github.com/benoitc/gunicorn/issues/1181))
- Let logging module handle traceback printing ([Issue #1201](https://github.com/benoitc/gunicorn/issues/1201))
- improvement: Allow configuring logger_class with statsd_host ([Issue #1188](https://github.com/benoitc/gunicorn/issues/1188))
- fix: traceback formatting ([Issue #1235](https://github.com/benoitc/gunicorn/issues/1235))
- fix: print error logs on stderr and access logs on stdout ([Issue #1184](https://github.com/benoitc/gunicorn/issues/1184))


### Documentation

- Simplify installation instructions in gunicorn.org ([Issue #1072](https://github.com/benoitc/gunicorn/issues/1072))
- Fix URL and default worker type in example_config ([Issue #1209](https://github.com/benoitc/gunicorn/issues/1209))
- update django doc url to 1.8 lts ([Issue #1213](https://github.com/benoitc/gunicorn/issues/1213))
- fix: miscellaneous wording corrections ([Issue #1216](https://github.com/benoitc/gunicorn/issues/1216))
- Add PSF License Agreement of selectors.py to NOTICE (:issue: `1226`)
- document LOGGING overriding ([Issue #1051](https://github.com/benoitc/gunicorn/issues/1051))
- put a note that error logs are only errors from Gunicorn ([Issue #1124](https://github.com/benoitc/gunicorn/issues/1124))
- add a note about the requirements of the threads workers under python 2.x ([Issue #1200](https://github.com/benoitc/gunicorn/issues/1200))
- add access_log_format to config example ([Issue #1251](https://github.com/benoitc/gunicorn/issues/1251))

### Tests

- Use more pytest.raises() in test_http.py


## 19.4.5 / 2016/01/05

- fix: NameError fileno in gunicorn.http.wsgi ([Issue #1178](https://github.com/benoitc/gunicorn/issues/1178))

## 19.4.4 / 2016/01/04

- fix: check if a fileobject can be used with sendfile(2.md) ([Issue #1174](https://github.com/benoitc/gunicorn/issues/1174))
- doc: be more descriptive in errorlog option ([Issue #1173](https://github.com/benoitc/gunicorn/issues/1173))