---
* BREAKING CHANGE: Dropped support for Python 2.
* Changed alpha channel handling on RGB endpoint. The alpha channel is now
switched off by default. To activate it, add the ``alpha`` query parameter
to the rgb request.
* Added enhancers from the ``PIL.ImageEnhance`` to the tiles endpoints. Tiles
can now be enhanced dynamically.
* The RGB endpoint now supports the band accessor syntax similar to the
regular algebra endpoint.
* Single pixel value lookups by coordinates from algebra expressions can now be
requested.
* Added option to add direct s3 links that download data from s3 using boto3.
This allows specifying private or requester-pays buckets as raster source.
* Made it possible to request TIFF tiles on the TMS, Algebra and RGB endpoints.
* Updated dependency versions to latest respective releases.