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CHANGELOG.md

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Changelog for Elixir v1.18

This release no longer supports WERL (a graphical user interface for the Erlang terminal on Windows). For a better user experience on Windows terminals, use Erlang/OTP 26+.

Support for new types

TODO.

mix format --migrate

TODO.

v1.18.0-dev

1. Enhancements

Elixir

  • [CLI] Add experimental PowerShell scripts for elixir, elixirc, and mix on Windows. Those provide a safer entry point for running Elixir from other platforms
  • [Code] Support several migration options in Code.format_string!/2
  • [Code] Add parenthesis around -- and --- in Code.format_string!/2 to make precedence clearer
  • [Config] Add Config.read_config/1
  • [Enumerable] Add Enum.product_by/2 and Enum.sum_by/2
  • [Exception] Add MissingApplicationsError exception to denote missing applications
  • [Kernel] Update source code parsing to match UTS #55 latest recommendations. In particular, mixed script is allowed in identifiers as long as they are separate by underscores (_), such as http_сервер. Previously allowed highly restrictive identifiers, which mixed Latin and other scripts, such as the japanese word for t-shirt, Tシャツ, now require the underscore as well
  • [Kernel] Warn on bidirectional confusability in identifiers
  • [Kernel] Now verify the type of the binary generators
  • [Kernel] Track the type of tuples in patterns and inside elem/2
  • [List] Add List.ends_with?/2
  • [Macro] Improve dbg handling of if/2, with/1 and of code blocks
  • [Process] Handle arbitrarily high integer values in Process.sleep/1
  • [String] Inspect special whitespace and zero-width characters using their Unicode representation

ExUnit

  • [ExUnit] Support parameterized tests on ExUnit.Case

IEx

  • [IEx] Add :dot_iex support to IEx.configure/1
  • [IEx] Add report for normal/shutdown exits in IEx

Mix

  • [mix format] Add mix format --migrate to migrate from deprecated functionality
  • [mix test] Taint failure manifest if requiring or compiling tests fail

2. Bug fixes

Elixir

  • [Code.Fragment] Properly handle keyword keys as their own entry
  • [Inspect.Algebra] Ensure next_break_fits respects line_length
  • [Module] Include module attribute line and name when tracing its aliases

ExUnit

  • [ExUnit.Assertions] Raise if guards are used in assert/1 with =

Mix

  • [mix compile] Ensure warnings from external resources are emitted with --all-warnings when files do not change
  • [mix deps.compile] Fix escaping issues when invoking rebar3 in some cases
  • [mix escript] Fix escript layout and support storing priv directories
  • [mix release] Make .app files deterministic in releases

3. Soft deprecations (no warnings emitted)

Elixir

  • [Kernel] Deprecate unless in favor of if. Use mix format --migrate to automate the migration

4. Hard deprecations

EEx

  • [EEx] <%# is deprecated in favor of <%!-- or <% #
  • [EEx] c:EEx.handle_text/2 is deprecated in favor of c:EEx.handle_text/3

Elixir

  • [Enumerable] Deprecate returning a two-arity function in Enumerable.slice/1
  • [List] List.zip/1 is deprecated in favor of Enum.zip/1
  • [Module] Deprecate Module.eval_quoted/3 in favor of Code.eval_quoted/3
  • [Range] Deprecate inferring negative ranges on Range.new/2

Mix

  • [mix cmd] Deprecate mix cmd --app APP in favor of mix do --app APP

v1.17

The CHANGELOG for v1.17 releases can be found in the v1.17 branch.