Changelog for Elixir v1.14

v1.14.0-dev

1. Enhancements

Elixir

[Code] Emit deprecation and type warnings on Code.compile_string/2 and Code.compile_quoted/2
[Code] Warn if an outdated lexical tracker is given on eval
[Inspect] Improve error reporting when there is a faulty inspect implementation
[Kernel] Print escaped version of control chars when they show up as unexpected tokens
[Keyword] Add Keyword.from_keys/2 and Keyword.replace_lazy/3
[List] Add List.keysort/3 with support for a sorter function
[Macro] Add Macro.classify_atom/1 and Macro.inspect_atom/2
[Map] Add Map.from_keys/2 and Map.replace_lazy/3
[PartitionSupervisor] Add PartitionSupervisor that starts multiple isolated partitions of the same child for scalability
[Registry] Add Registry.count_select/2
[Stream] Add Stream.duplicate/2
[String] Support empty lookup lists in String.replace/3, String.split/3, and String.splitter/3
[Version] Add Version.to_string/1
[Version] Colorize Version.Requirement source in Inspect protocol

Mix

[mix test] Improve error message when suite fails due to coverage

2. Bug fixes

IEx

[IEx] Disallow short-hand pipe after matches

3. Soft-deprecations (no warnings emitted)

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

Mix

[Mix] Mix.Tasks.Xref.calls/1 is deprecated in favor of compilation tracers

v1.13

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