Version 0.24.0

Features

• Drop python3.9 support
• Add python3.13 support
• Add support for mypy>=1.12
• Add picky exceptions to future_safe decorator like safe has
• Improve inference of ResultLike objects when exception catching
  decorator is applied with explicit exception types
• Add picky exceptions to impure_safe decorator like safe has. Issue #1543
• Add partition function to result module. Issue #1905
• Add default_error parameter to returns.converters.maybe_to_result,
  which provides a default error value for Failure

Version 0.23.0

Features

• Breaking: Remove success_type and failure_type fields from IOResult,
  Maybe and Result types

Misc

• Now requires mypy>=1.10
• Adds [check-laws] extra for installation

Version 0.22.0

Features

• Breaking: Drops python3.7 support
• Now requires mypy>=1.5
• Adds trampolines support

Version 0.21.0

Features

• Now requires mypy>=1.4
• Adds [compatible-mypy] extra for installation

Version 0.20.1

Bugfixes

• Fixed HKT to_str example in documentation
• Fixed backward deserialization compatibility for BaseContainer

Version 0.20.0

Features

• Now requires mypy>=1.2

Bugfixes

• Fixes a problem with do-notation and type aliases
• Fixes custom pickle protocol to handle None values gracefully
• Removes broken drylabs.io link in README
• Revises pointfree documentation

0.19.0 aka The Do Notation

Features

• Adds do notation
• Adds attempt decorator

Misc

• Check __slots__ correctness with slotscheck

Version 0.18.0

New Year Release! 🎄

Features

• Now requires typing_extensions>=4.0
• Now requires mypy>=0.930
• Removes plugin for @safe, @maybe, @future, etc.
  Because we now use ParamSpec type to properly type decorators

Bugfixes

• Fixes __slots__ not being set properly in containers and their base classes
• Fixes patching of containers in pytest plugin not undone after each test

Version 0.17.0

Features

• Python3.10 support
• Enables Pattern Matching support for Result containers
• Enables Pattern Matching support for Maybe container
• Enables Pattern Matching support for IOResult container
• Improves hypothesis plugin, now we detect
  when type cannot be constructed and give a clear error message

Version 0.16.0

Features

• Makes _Nothing a singleton
• Refactor flow function to be faster

Bugfixes

• Fixes that assert_trace was not catching containers
  from @safe-wrapped functions

Misc

• Fixes typos in documentation