Version 5.0.0

Enhancements

• Add HiDPI support (#591, #595)
• Contribute examples to etsdemo. (#494)
• Add Container.components setter. (#387)

Changes

• Accept a PIL Image as input to draw_image (#590)
• Use Pyface-style toolkit selection. (#571)
• Remove the old and outdated pyglet and vtk backends. (#570)
• Remove the PIL/pillow kiva compatibility wrapper code. (#569)
• Remove quartz CGGLContext. (#515)
• Make kiva explorer a popup. (#510)
• Remove import time side effect of creating the font cache in the
  font_manager. (#488)
• Drop support for Python <= 3.6 from the codebase. (#384, #461, #462, #463,
  #464, #465, #479, #506)
• Split out the GL backend. (#392)
• Add opacity to null-toolkit-defined rgba_color_trait. (#374)
• Don't use a GraphicsContext for storage in the Image component. (#251)

Fixes

• Allow scaling in kiva.agg draw_marker_at_points (#594)
• Celiagg's clip_to_rect should respect the transform matrix (#592)
• Handle ETSConfig.toolkit == 'qt' (#587)
• Undo removal of get_mac_context import (#586)
• Allow unhandled key and mouse-wheel events to bubble up. (#552)
• Fix Font.findfontname AttributeError when the default font manager
  has not been initialized. (#531)
• Fix AttributeError on Python 3.9 due to the use of removed API in
  xml. (#492)
• Make font style- and stretch- check case insensitive. (#405)
• Add a missing self argument to a method. (#468)
• WxPython4 fixes. (#403)
• Pass file object into TTCollection and close when done. (#378)
• Fix DeprecationWarning\s due to escape characters. (#371)
• Don't mess with logging configuration. (#370)
• Fix KeyError while parsing ttfFontProperty. (#365)

Documentation

• Add documentation for toolkit/backend selection (#597)
• Add an example of controlling HiDPI usage (#596)
• Add an Image Explorer demo (#589)
• Improve module docstrings in kiva and enable api modules. (#518, #564)
• Mention in the README libglu1-mesa-dev is a build dependency on Linux. (#546)
• Use templates when generating api docs for enable and kiva. (#526)
• Ignore toolkit-specific modules in api documentation. (#522, #527)
• Cleanup and fix errors in demos and examples. (#388, #402, #508, #511)
• Add a click command to build docs. (#499)
• Fix failing documentation build on Python 3. (#478)
• Expand DragTool comments. (#452)
• Add a demo runner for enable. (#383)

Testing

• Clean up some of the agg tests. (#573)
• Add a unit test for drawing images. (#572)
• Unskip most of the TestGLDrawing tests on OSX. (#540)
• Address resource warnings because of open file handles. (#529)
• Rename test module so it gets discovered by unittest. (#528)
• Fix tests for PySide2 and add PySide2 to the testing matrix. (#484)
• Make tests for font manager quieter. (#487)
• Use unittest as the test runner instead of nose. (#475)
• Switch on default warnings flag for CI test command. (#469)
• Replace use of tempfile.mktemp with tempfile.NamedTemporaryFile. (#456)
• Add dclick option to test assistant. (#444)

Maintenance

• Remove files that are not used or needed. (#578)
• Use a standard copyright header. (#577)
• Remove is_string_like. (#568)
• Stop using deprecated trait handlers. (#567)
• Use kiva api modules where possible. (#565)
• Use traits.api, traitsui.api and pyface.api where possible. (#566)
• Remove outdated/broken debugging constructs. (#560)
• Cleanup non-standard use of traitsui.api imports. (#561)
• Add tox.ini for flake8 control. (#559)
• Run black on enable and kiva. (#557, #558)
• Remove outdated/unnecessary files. (#521)
• Remove TODO.txt file from the manifest. (#523)
• Use pyface.undo instead of apptools.undo. (#507)
• Remove module-level findfont in font_manager. (#505)
• Remove USE_FONTCONFIG in font_manager. (#498)
• Warn if attempted pyface and traitsui imports fail. (#481)
• Remove todo files in the repository. (#474)
• Add disclaimer in complaince with FreeType License. (#477)
• Add or update README files to mention what are vendored code. (#476)
• Remove unnecessary empty return statements. (#455)
• Replace default list argument with None. (#467)
• Use is instead of == when comparing to None. (#457)
• Remove dead/commented out code. (#466)
• Remove EOF markers from files. (#453)
• Fix test failures when testing against TraitsUI 7.1.0. (#446)
• Update badges and links in README. (#420)
• Regenerate _cython_speedups.cpp for compatibility with Python 3.8. (#376)
• Defer imports from font_manager in font module. (#368)

Build and Continuous Integration

• Update setup.py to allow creation of release candidates. (#575)
• Provide the right path to the version file on windows. (#563)
• Unconditionally list pillow as a runtime dependency. (#562)
• Move to a single setup.py file. (#535)
• Declare setuptools as a test dependency. (#547)
• Move from Travis, Appveyor CI to GitHub Actions CI. (#538, #539. #542, #544,
  #548, #549, #579)
• Remove code coverage reporting on PRs. (#536)
• Unset and remove use_2to3 from setup.py. (#520)
• Update CI requirements. (#513)
• Require wx toolkit CI job to pass. (#459)
• Use config when bootstrapping an edm environment. (#489)
• Remove install requirement version numbers from README. (#470)
• Make improvements to edmtool utility. (#454)
• Fix missing new dependencies in cron job. (#448)
• Use PyQt5 from EDM instead of PyPI. (#437)
• Re-add Wx as a supported toolkit. (#432)
• Update cron job to install dependencies from git source. (#428)
• Use Python 3.6 as the default runtime in edmtool. (#430)
• Make CI green again and remove Python 3.5 from CI. (#424)
• Add optional demo dependencies to setup.py. (#386)
• Upgrade to EDM 2.0.0. (#373)
• Prevent nose from capturing logs. (#367)
• Fix the environment name used in CI. (#366)