View Source Changelog for Elixir v1.14

Elixir v1.14 requires Erlang/OTP 23+.

partitionsupervisor

PartitionSupervisor

TODO.

improved-errors-on-binaries-and-evaluation

Improved errors on binaries and evaluation

TODO.

slicing-with-steps

Slicing with steps

TODO.

expression-based-inspection

Expression-based inspection

TODO.

v1-14-0-dev

v1.14.0-dev

1-enhancements

1. Enhancements

EEx

  • [EEx] Support multi-line comments to EEx via <%!-- --%>
  • [EEx] Add EEx.tokenize/2

Elixir

ExUnit

IEx

  • [IEx] Evaluate --dot-iex line by line
  • [IEx.Helpers] Allow an atom to be given to pid/1

Logger

Mix

  • [mix do] Support --app option to restrict recursive tasks in umbrella projects
  • [mix do] Allow using + as a task separator instead of comma
  • [mix new] Do not allow projects to be created with application names that conflict with multi-arg Erlang VM switches
  • [mix profile] Return the return value of the profiled function
  • [mix release] Make BEAM compression opt-in
  • [mix test] Improve error message when suite fails due to coverage
  • [mix test] Support :test_elixirc_options and default to not generating docs nor debug info chunk for tests

2-bug-fixes

2. Bug fixes

Elixir

  • [CLI] Improve errors on incorrect --rpc-eval usage
  • [Code] Do not emit warnings when formatting code
  • [Enum] Allow slices to overflow on both starting and ending positions
  • [Kernel] Do not allow restricted restricted characters in identifiers according to UTS39
  • [Kernel] Define __exception__ field as true when expanding exceptions in typespecs
  • [Kernel] Warn if any of True, False, and Nil aliases are used
  • [Kernel] Warn on underived @derive attributes
  • [Protocol] Warn if a protocol has no definitions
  • [String] Allow slices to overflow on both starting and ending positions

ExUnit

  • [ExUnit] Do not raise when diffing unknown bindings in guards
  • [ExUnit] Properly print diffs when comparing improper lists with strings at the tail position
  • [ExUnit] Add short hash to tmp_dir in ExUnit to avoid test name collision
  • [ExUnit] Do not store logs in the CLI formatter (this reduces memory usage for suites with capture_log)
  • [ExUnit] Run after_suite even when no tests run
  • [ExUnit] Fix scenario where setup with imported function from within describe failed to compile

Mix

  • [mix compile.elixir] Fix --warnings-as-errors when used with --all-warnings
  • [mix format] Do not add new lines if the formatted file is empty
  • [mix release] Only set RELEASE_MODE after env.{sh,bat} are executed

IEx

  • [IEx] Disallow short-hand pipe after matches

3-soft-deprecations-no-warnings-emitted

3. Soft-deprecations (no warnings emitted)

EEx

  • [EEx] Using <%# ... %> for comments is deprecated. Please use <% # ... %> or the new multi-line comments with <%!-- ... --%>

Logger

Mix

  • [mix cmd] The --app option in mix cmd CMD is deprecated in favor of the more efficient mix do --app app cmd CMD

4-hard-deprecations

4. Hard-deprecations

Elixir

  • [Application] Calling Application.get_env/3 and friends in the module body is now discouraged, use Application.compile_env/3 instead
  • [Bitwise] use Bitwise is deprecated, use import Bitwise instead
  • [Bitwise] ~~~ is deprecated in favor of bnot for clarity
  • [Kernel.ParallelCompiler] Returning a list or two-element tuple from :each_cycle is deprecated, return a {:compile | :runtime, modules, warnings} tuple instead
  • [Kernel] Deprecate the operator <|> to avoid ambiguity with upcoming extended numerical operators
  • [String] Deprecate passing a binary compiled pattern to String.starts_with?/2

Logger

  • [Logger] Deprecate $levelpad on message formatting

Mix

5-backwards-incompatible-changes

5. Backwards incompatible changes

Mix

  • [mix local.rebar] Remove support for rebar2, which has not been updated in 5 years, and is no longer supported on recent Erlang/OTP versions

v1-13

v1.13

The CHANGELOG for v1.13 releases can be found in the v1.13 branch.