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CHANGELOG.md

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Changelog for Elixir v1.15

This release requires Erlang/OTP 24 and later.

v1.15.0-dev

1. Enhancements

EEx

  • [EEx] Include source code snippets in syntax errors

Elixir

  • [Code] Code.format_string!/2 now converts 'charlists' into ~c"charlists" by default
  • [Date] Add Date.before?/2 and Date.after?/2
  • [DateTime] Add DateTime.before?/2 and DateTime.after?/2
  • [Inspect] Inspect now renders 'charlists' as ~c"charlists" by default
  • [Kernel] Add t:nonempty_binary/0 and t:nonempty_bitstring/0
  • [Kernel] Treat @behaviours as runtime dependencies
  • [Kernel] Warn for nested calls without parens inside keywords
  • [Kernel.CLI] Support --sname undefined/--name undefined so a name is automatically generated
  • [Keyword] Add Keyword.split_with/2
  • [Map] Add Map.split_with/2
  • [MapSet] Add MapSet.split_with/2
  • [NaiveDateTime] Add NaiveDateTime.before?/2 and NaiveDateTime.after?/2
  • [Process] Add Process.alias/0,1 and Process.unalias/1
  • [Range] Add Range.split/2
  • [Sets] Optimize many functions in MapSet
  • [String] Update Unicode to version 15.0.0
  • [Supervisor] Add support for automatic shutdown in Supervisor
  • [Task] Remove head blocking on Task.yield_many/2
  • [Time] Add Time.before?/2 and Time.after?/2

ExUnit

  • [ExUnit] Add more color configuration to ExUnit CLI formatter
  • [ExUnit.Doctest] Add ExUnit.DocTest.doctest_file/2

IEx

  • [IEx.Info] Implement protocol for Range and DateTime

Mix

  • [Mix.Project] Support def cli to unify all CLI defaults in a single place
  • [mix compile] Set --all-warnings by default
  • [mix compile.app] Write optional_applications to .app file
  • [mix deps.get] Automatically install Hex and Rebar on mix deps.get/mix deps.update
  • [mix deps.get] Support --check-locked which raises if changes to the lockfile are required
  • [mix format] Allow multiple formatters per file extension and sigil
  • [mix format] Show diffs whenever --check-formatted fails

2. Bug fixes

Elixir

  • [Code.Formatter] Fix a scenario where a keyword followed by parenthesis could go above the maximum line length
  • [Code.Formatter] Remove unecessary parens in nullary type funs
  • [File] Do not raise if there are file system race conditions in File.cp/2
  • [Kernel] Expand macros on the left side of -> in try/rescue
  • [Kernel.ParallelCompiler] Make sure compiler doesn't crash when there are stray messages in the inbox
  • [URI] Make sure URI.merge/2 works accordingly with relative paths

ExUnit

  • [ExUnit] Do not merge context as tags inside the runner to reduce memory usage when emitting events to formatters
  • [ExUnit] Do not expand or collect vars from quote in ExUnit assertions

IEx

  • [IEx] Do not spawn a process to read IO. This fixes a bug where multiline paste stopped working whenever the input reader was killed
  • [IEx] Do not perform completion for prompts triggered during code evaluation

3. Soft deprecations (no warnings emitted)

Mix

  • [Mix.Project] :preferred_cli_env is deprecated in favor of :preferred_envs in def cli
  • [Mix.Project] :preferred_cli_target is deprecated in favor of :preferred_targets in def cli

4. Hard deprecations

Elixir

  • [Calendar] Calendar.ISO.day_of_week/3 is deprecated in favor of Calendar.ISO.day_of_week/4
  • [Exception] Exception.exception?/1 is deprecated in favor of Kernel.is_exception/1
  • [Kernel] Deprecate ... as a valid function call identifier
  • [Regex] Regex.regex?/1 is deprecated in favor of Kernel.is_struct/2

Logger

  • [Logger] Logger.warn/2 is deprecated in favor of Logger.warning/2

v1.14

The CHANGELOG for v1.14 releases can be found in the v1.14 branch.