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CHANGELOG.md

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Changelog for Elixir v1.11

v1.11.0-dev

1. Enhancements

EEx

  • [EEx] Track column information in EEx templates when enabled in the compiler
  • [EEx] Show column information in EEx error messages
  • [EEx] Support :indentation option when compiling EEx templates for proper column tracking

Elixir

  • [Calendar] Add Calendar.strftime/3 for datetime formatting
  • [Code] Add :column to Code.string_to_quoted*/2
  • [Code] Add Code.can_await_module_compilation?/0 to check if the parallel compiler is enabled and it can await for other modules to be compiled
  • [Kernel] Add is_struct/2 guard
  • [Kernel] Support map.field syntax in guards
  • [Kernel] Add +++ and --- with right associativity to the list of custom operators
  • [Task] Add Task.await_many/2

ExUnit

  • [ExUnit.Assertion] Allow receive timeouts to be computed at runtime
  • [ExUnit.Doctest] Allow users to add tags to doctests

IEx

  • [IEx.Helpers] Show docs from Erlang modules that have been compiled with the docs chunk

Logger

  • [Logger] Add notice, critical, alert, and emergency log levels
  • [Logger] Support structured logging by logging maps or keyword lists
  • [Logger] Allow level to be set per module with Logger.put_module_level/2

Mix

  • [mix compile] Support the __mix_recompile__?/0 callback for custom behaviour on when Mix should recompile a given module
  • [mix compile.elixir] Track application boundaries in the Elixir compiler. If you invoke code from Erlang or Elixir standard libraries and you don't depend on the proper applications, a warning will be emitted. A warning will also be emitted if you invoke code from an umbrella sibling that you don't depend on - effectively forbidding cyclic dependencies between apps
  • [mix test.coverage] Add mix test.coverage that aggregates coverage results from umbrellas and OS partitioning

2. Bug fixes

EEx

  • [EEx] Make trimming behaviour via the :trim option more consistent

Elixir

  • [Kernel] Validate values given to :line in quote to avoid emitting invalid ASTs
  • [Kernel.SpecialForms] Add |/2 to the list of special forms to avoid inconsistent behaviour on overrides
  • [Version] Add defaults and enforce keys in Version struct

IEx

  • [IEx] Fix tokenizer emitting repeated warnings in the REPL

3. Soft-deprecations (no warnings emitted)

  • [Logger] warn log level is deprecated in favor of warning

4. Hard-deprecations

Elixir

  • [Application] Deprecate non-atom keys on put_env, get_env, fetch_env, and delete_env
  • [Supervisor] Deprecate Supervisor.start_child/2 and Supervisor.terminate_child/2 in favor of DynamicSupervisor
  • [Supervisor.Spec] Deprecate Supervisor.Spec.worker/3 and Supervisor.Spec.supervisor/3 in favor of the new typespecs

v1.10

The CHANGELOG for v1.10 releases can be found in the v1.10 branch.