Picamera

* A nasty race condition was discovered which led to crashes with long-running
processes (`40`_)
* An assertion error raised when performing raw captures with an active resize
parameter was fixed (`46`_)
* A couple of documentation enhancements made it in (`41`_ and `47`_)

.. _40: https://github.com/waveform80/picamera/issues/40
.. _41: https://github.com/waveform80/picamera/pull/41
.. _46: https://github.com/waveform80/picamera/issues/46
.. _47: https://github.com/waveform80/picamera/issues/47

========================

In 1.0 the major features added were:

* Debian packaging! (`12`_)
* The new :attr:`~PiCamera.frame` attribute permits querying information about
the frame last written to the output stream (number, timestamp, size,
keyframe, etc.) (`34`_, `36`_)
* All capture methods (:meth:`~PiCamera.capture` et al), and the
:meth:`~PiCamera.start_recording` method now accept a ``resize`` parameter
which invokes a resizer prior to the encoding step (`21`_)
* A new :class:`~PiCameraCircularIO` stream class is provided to permit holding
the last *n* seconds of video in memory, ready for writing out to disk (or
whatever you like) (`39`_)
* There's a new way to specify raw captures - simply use the format you require
with the capture method of your choice. As a result of this, the
:attr:`~PiCamera.raw_format` attribute is now deprecated (`32`_)

Some bugs were also fixed:

* GPIO.cleanup is no longer called on :meth:`~PiCamera.close` (`35`_), and
GPIO set up is only done on first use of the :attr:`~PiCamera.led` attribute
which should resolve issues that users have been having with using picamera
in conjunction with GPIO
* Raw RGB video-port based image captures are now working again too (`32`_)

As this is a new major-version, all deprecated elements were removed:

* The continuous method was removed; this was replaced by
:meth:`~PiCamera.capture_continuous` in 0.5 (`7`_)

.. _7: https://github.com/waveform80/picamera/issues/7
.. _12: https://github.com/waveform80/picamera/issues/12
.. _21: https://github.com/waveform80/picamera/issues/21
.. _32: https://github.com/waveform80/picamera/issues/32
.. _34: https://github.com/waveform80/picamera/issues/34
.. _35: https://github.com/waveform80/picamera/issues/35
.. _36: https://github.com/waveform80/picamera/issues/36
.. _39: https://github.com/waveform80/picamera/issues/39

========================

In 0.8 the major features added were:

* Capture of images whilst recording without frame-drop. Previously, images
could be captured whilst recording but only from the still port which
resulted in dropped frames in the recorded video due to the mode switch. In
0.8, ``use_video_port=True`` can be specified on capture methods whilst
recording video to avoid this.
* Splitting of video recordings into multiple files. This is done via the new
:meth:`~PiCamera.split_recording` method, and requires that the
:meth:`~PiCamera.start_recording` method was called with *inline_headers* set
to True. The latter has now been made the default (technically this is a
backwards incompatible change, but it's relatively trivial and I don't
anticipate anyone's code breaking because of this change).

In addition a few bugs were fixed:

* Documentation updates that were missing from 0.7 (specifically the new
video recording parameters)
* The ability to perform raw captures through the video port
* Missing exception imports in the encoders module (which caused very confusing
errors in the case that an exception was raised within an encoder thread)

* Added ``quantisation`` and ``inline_headers`` options to
:meth:`~PiCamera.start_recording` method
* Fixed bugs in the :attr:`~PiCamera.crop` property
* The issue of captures fading to black over time when the preview is not
running has been resolved. This solution was to permanently activate the
preview, but pipe it to a null-sink when not required. Note that this means
rapid capture gets even slower when not using the video port
* LED support is via RPi.GPIO only; the RPIO library simply doesn't support it
at this time
* Numerous documentation fixes

========================

In 0.6, the major features added were:

* New ``'raw'`` format added to all capture methods (:meth:`~PiCamera.capture`,
:meth:`~PiCamera.capture_continuous`, and :meth:`~PiCamera.capture_sequence`)
to permit capturing of raw sensor data
* New :attr:`~PiCamera.raw_format` attribute to permit control of raw format
(defaults to ``'yuv'``, only other setting currently is ``'rgb'``)
* New :attr:`~PiCamera.shutter_speed` attribute to permit manual control of
shutter speed (defaults to 0 for automatic shutter speed, and requires latest
firmware to operate - use ``sudo rpi-update`` to upgrade)
* New "Recipes" chapter in the documentation which demonstrates a wide variety
of capture techniques ranging from trivial to complex

========================

In 0.5, the major features added were:

* New :meth:`~PiCamera.capture_sequence` method
* :meth:`~PiCamera.continuous` method renamed to
:meth:`~PiCamera.capture_continuous`. Old method name retained for
compatiblity until 1.0.
* *use_video_port* option for :meth:`~PiCamera.capture_sequence` and
:meth:`~PiCamera.capture_continuous` to allow rapid capture of JPEGs via
video port
* New :attr:`~PiCamera.framerate` attribute to control video
and rapid-image capture frame rates
* Default value for :attr:`~PiCamera.ISO` changed from 400 to 0 (auto) which
fixes :attr:`~PiCamera.exposure_mode` not working by default
* *intraperiod* and *profile* options for :meth:`~PiCamera.start_recording`

In addition a few bugs were fixed:

* Byte strings not being accepted by :meth:`~PiCamera.continuous`
* Erroneous docs for :attr:`~PiCamera.ISO`

Many thanks to the community for the bug reports!