5.9.0 June 21st 2021

• Improved CLI startup time.
• Implemented #1697: Provisional support for PEP 582: skip __pypackages__ directories by default.
• Implemented #1705: More intuitive handling of isort:skip_file comments on streams.
• Implemented #1737: Support for using action comments to avoid adding imports to individual files.
• Implemented #1750: Ability to customize output format lines.
• Implemented #1732: Support for custom sort functions.
• Implemented #1722: Improved behavior for running isort in atomic mode over Cython source files.
• Fixed (#1695): added imports being added to doc string in some cases.
• Fixed (#1714): in rare cases line continuation combined with tabs can output invalid code.
• Fixed (#1726): isort ignores reverse_sort when force_sort_within_sections is true.
• Fixed #1741: comments in hanging indent modes can lead to invalid code.
• Fixed #1744: repeat noqa comments dropped when * import and non * imports exist from the same package.
• Fixed #1721: repeat noqa comments on separate from lines with force-single-line set, sometimes get dropped.

5.8.0 March 20th 2021

• Fixed #1631: as import comments can in some cases be duplicated.
• Fixed #1667: extra newline added with float-to-top, after skip, in some cases.
• Fixed #1594: incorrect placement of noqa comments with multiple from imports.
• Fixed #1566: in some cases different length limits for dos based line endings.
• Implemented #1648: Export MyPY type hints.
• Implemented #1641: Identified import statements now return runnable code.
• Implemented #1661: Added "wemake" profile.
• Implemented #1669: Parallel (-j) now defaults to number of CPU cores if no value is provided.
• Implemented #1668: Added a safeguard against accidental usage against /.
• Implemented #1638 / #1644: Provide a flag --overwrite-in-place to ensure same file handle is used after sorting.
• Implemented #1684: Added support for extending skips with --extend-skip and --extend-skip-glob.
• Implemented #1688: Auto identification and skipping of some invalid import statements.
• Implemented #1645: Ability to reverse the import sorting order.
• Implemented #1504: Added ability to push star imports to the top to avoid overriding explicitly defined imports.
• Documented #1685: Skip doesn't support plain directory names, but skip_glob does.

5.7.0 December 30th 2020

• Fixed #1612: In rare circumstances an extra comma is added after import and before comment.
• Fixed #1593: isort encounters bug in Python 3.6.0.
• Implemented #1596: Provide ways for extension formatting and file paths to be specified when using streaming input from CLI.
• Implemented #1583: Ability to output and diff within a single API call to isort.file.
• Implemented #1562, #1592 & #1593: Better more useful fatal error messages.
• Implemented #1575: Support for automatically fixing mixed indentation of import sections.
• Implemented #1582: Added a CLI option for skipping symlinks.
• Implemented #1603: Support for disabling float_to_top from the command line.
• Implemented #1604: Allow toggling section comments on and off for indented import sections.

5.6.4 October 12, 2020

• Fixed #1556: Empty line added between imports that should be skipped.

5.6.3 October 11, 2020

• Improved packaging of test files alongside source distribution (see: #1555).

5.6.2 October 10, 2020

• Fixed #1548: On rare occasions an unecessary empty line can be added when an import is marked as skipped.
• Fixed #1542: Bug in VERTICAL_PREFIX_FROM_MODULE_IMPORT wrap mode.
• Fixed #1552: Pylama test dependent on source layout.

5.6.1 [Hotfix] October 8, 2020

• Fixed #1546: Unstable (non-idempotent) behavior with certain src trees.

5.6.0 October 7, 2020

• Implemented #1433: Provide helpful feedback in case a custom config file is specified without a configuration.
• Implemented #1494: Default to sorting imports within .pxd files.
• Implemented #1502: Improved float-to-top behavior when there is an existing import section present at top-of-file.
• Implemented #1511: Support for easily seeing all files isort will be ran against using isort . --show-files.
• Implemented #1487: Improved handling of encoding errors.
• Improved handling of unsupported configuration option errors (see #1475).
• Fixed #1463: Better interactive documentation for future option.
• Fixed #1461: Quiet config option not respected by file API in some circumstances.
• Fixed #1482: pylama integration is not working correctly out-of-the-box.
• Fixed #1492: --check does not work with stdin source.
• Fixed #1499: isort gets confused by single line, multi-line style comments when using float-to-top.
• Fixed #1525: Some warnings can't be disabled with --quiet.
• Fixed #1523: in rare cases isort can ignore direct from import if as import is also on same line.

Potentially breaking changes:

• Implemented #1540: Officially support Python 3.9 stdlib imports by default.
• Fixed #1443: Incorrect third vs first party categorization - namespace packages.
• Fixed #1486: "Google" profile is not quite Google style.
• Fixed "PyCharm" profile to always add 2 lines to be consistent with what PyCharm "Optimize Imports" does.

Goal Zero: (Tickets related to aspirational goal of achieving 0 regressions for remaining 5.0.0 lifespan):

• Implemented #1472: Full testing of stdin CLI Options
• Added additional branch coverage.
• More projects added to integration test suite.

5.5.5 [Hotfix] October 7, 2020

• Fixed #1539: in extremely rare cases isort 5.5.4 introduces syntax error by removing closing paren.

5.5.4 [Hotfix] September 29, 2020

• Fixed #1507: in rare cases isort changes the content of multiline strings after a yield statement.
• Fixed #1505: Support case where known_SECTION points to a section not listed in sections.