v1.13.4

This release has been verified to work with Erlang/OTP 25 RC2.

1. Enhancements

Elixir

• [Code] Allow iodata to be returned in sigil formatting functions
• [Code] Pass opening delimiter information to sigil formatting functions

2. Bug fixes

Elixir

• [Kernel] Tweak type unification to fix infinite loop with recursive vars
• [Kernel] Add compile-time dependencies on require
• [Registry] Make Registry send work with named triplets

3. Deprecations

Mix

• [mix rebar] Deprecate Rebar 2 as it no longer works on Erlang/OTP 25

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v1.13.3

1. Enhancements

Mix

• [mix format] Supply file and line to formatter plugins
• [mix format] Support embedded Elixir expressions inside formatter plugins

2. Bug fixes

Elixir

• [Code] Fix duplicate bindings causing errors during evaluation
• [Kernel] Make sure signatures stored in the Documentation chunk does not contain newlines
• [Kernel] Fix infinite loop when compiling guards with recursive map access
• [Macro] Fix error on Macro.to_string/1 when the plain alias Elixir is given
• [String] Fix error for certain codepoint combinations in String.split_at/2

Mix

• [mix compile] Recompile project files when exports from dependencies change
• [mix test] Fix total coverage always showing in red even when above the threshold

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v1.13.2

1. Enhancements

Mix

• [mix format] Allow plugins to also format .ex and .exs files
• [mix release] Allow bypassing application mode validation in release spec
• [mix test] Print a message when the suite fails due to the coverage threshold

2. Bug fixes

Elixir

• [Code] Do not emit warnings on Code.Fragment.container_cursor_to_quoted/2
• [Kernel] Fix a crash when a for-comprehension with :uniq was used inside another comprehension with :uniq
• [Kernel] Ensure env.context_modules is properly set inside optimized defmodule
• [Keyword] Deprecate the recently added Keyword.map/2 as it is equivalent to Keyword.new/2
• [Map] Deprecate the recently added Map.map/2 as it is equivalent to Map.new/2
• [Protocol] Warn on zero arity callbacks inside protocols

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v1.13.1

1. Bug fixes

Elixir

• [Code] Do not show code snippets in SyntaxError and TokenMissingError if line is empty
• [Exception] Do not fail blaming ArgumentError for improper lists on apply/3
• [Macro] Set a max line_length for Macro.to_string/1
• [Macro] Fix formatting of lists on module attributes for Macro.to_string/1
• [String] Fix incorrect codepoint byte counting in slice with negative positions in ranges
• [Task] Ensure async streams can be consumed from another process than the one that creates them
• [URI] Undeprecate URI.parse/1 as URI.new/1 is too strict in many common cases
• [URI] Make sure URI.new/1 returns nil for empty paths

IEx

• [IEx] Make sure the --version flag halts IEx

Mix

• [Mix] Make protocol consolidation part of the Mix.install/2 cache

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v1.13.0

Announcement: https://elixir-lang.org/blog/2021/12/03/elixir-v1-13-0-released/

1. Enhancements

EEx

• [EEx] Add :parser_options to EEx functions

Elixir

• [Calendar] Add c:Calendar.year_of_era/3 to support calendars where the beginning of a new era does not align with the beginning of a new year
• [CLI] Support --short-version on the CLI that does not boot the VM
• [Code] Add Code.string_to_quoted_with_comments/2 and Code.quoted_to_algebra/2
• [Code] Add more :token_metadata to aliases and remote calls when parsing strings
• [Code] Add Code.Fragment module to provide best-effort information from code fragments. The module currently provides an updated Code.Fragment.cursor_context/2 with operator support and Code.Fragment.surround_context/2 which looks at a given position in a fragment and find its surrounding delimiters
• [Code] Allow custom sigil formatting on Code.format_string!/2
• [Code] Add {:on_module, bytecode, :none} trace to compilation tracers
• [Enum] Optimize Enum.concat/1 for lists of lists
• [Enum] Add Enum.slide/3
• [Exception] Better format Elixir exceptions in Erlang
• [Inspect] Allow default inspect fun to be set globally with Inspect.Opts.default_inspect_fun/1
• [IO] Allow :eof to be given as limit to IO.getn/2
• [Kernel] Support the :sigils option in import Mod, only: :sigils and allow the sigil modifiers to be also digits
• [Kernel] Make get_in consistently abort when nil values are found
• [Kernel] Improve compilation times by reducing the amount of copies of the AST across compiler processes
• [Kernel] Raise if trying to define a module with a slash in its name
• [Kernel] Warn when ?\ is used and there is no need for a escape character
• [Kernel] Track structs in typespecs as export deps instead of compile-time deps
• [Kernel] Add power operator (**/2)
• [Keyword] Add Keyword.validate/2
• [Keyword] Implement Keyword.filter/2 and Keyword.map/2
• [List] Add List.keyfind!/3
• [Macro] Add Macro.prewalker/1 and Macro.postwalker/1
• [Macro.Env] Add the following reflection functions: required?/2, lookup_import/2, fetch_alias/2, and fetch_macro_alias/2
• [Map] Implement Map.filter/2 and Map.map/2
• [Module] Support :nillify_clauses in Module.get_definition/3
• [Module] Add Module.attributes_in/1 and Module.overridables_in/1
• [OptionParser] Add "did you mean?" suggestions to OptionParser.ParseError messages
• [Record] Add record reflection via @__records__
• [Task] Add Task.completed/1
• [Task] Add Task.ignore/1 to keep a task running but ignoring all of its results
• [Task] Reduce the amount of copying Task.async* functions
• [URI] Add URI.new/1 and URI.new!/1

ExUnit

• [ExUnit] Show hint if comparing different but equivalent strings
• [ExUnit.CaptureIO] Add with_io/3 to return result with captured io
• [ExUnit.CaptureLog] Add with_log/2 to return result with captured logs

IEx

• [IEx.Autocomplete] Add path autocompletion whenever when the cursor follows "./ or "/ or "DRIVER: where DRIVER is a single letter
• [IEx.Autocomplete] Add autocompletion for sigils, struct names, and struct fields
• [IEx.Helpers] Allow multiple modules to be given to r/1

Logger

• [Logger] Add Logger.put_application_level/2

Mix

• [Mix] Add MIX_INSTALL_FORCE environment variable support
• [Mix] Support :config and :system_env in Mix.install/2
• [Mix] Add Mix.installed?/0
• [Mix.Shell] Add :default option to Mix.Shell.yes?
• [mix archive.install] Run loadconfig before building archive
• [mix compile] Move Elixir version check to before deps are compiled, in order to give feedback earlier
• [mix compile.elixir] Do not recompile files if their modification time change but their contents are still the same and the .beam files are still on disk
• [mix compile.elixir] Do not recompile all Elixir sources when Erlang modules change, only dependent ones
• [mix compile.elixir] Do not recompile Elixir files if mix.exs changes, instead recompile only files using Mix.Project or trigger a recompilation if a compiler option changes
• [mix compile.elixir] Only recompile needed files when a dependency is added, updated or removed
• [mix compile.elixir] Only recompile needed files when a dependency is configured
• [mix deps] Add :subdir option to git deps
• [mix escript.install] Run loadconfig before building escript
• [mix format] Support :plugins in mix format that can hook into custom extensions and sigils
• [mix format] Add Mix.Tasks.Format.formatter_for_file/2
• [mix local.rebar] No longer support sub_dirs in Rebar 2 to help migration towards Rebar 3
• [mix local.rebar] Support --if-missing option when installing Rebar
• [mix local.rebar] Set REBAR_PROFILE=prod when compiling Rebar dependencies
• [mix test] Support --profile-require=time to profile the time loading test files themselves
• [mix test] Allow filtering modules from coverage using regex
• [mix test] Allow the exit status of ExUnit to be configured and set the default to 2
• [mix test] Exit with a status of 3 when coverage falls below threshold
• [mix test] Write failed manifest when suite fails due to --warnings-as-errors
• [mix test] Ignore MIX_TEST_PARTITION when partitions set to 1
• [mix xref] Support multiple sinks and sources in mix xref graph
• [mix xref] Add trace subcommand to print compilation dependencies between files
• [mix xref] Add --fail-above option to mix xref
• [mix xref] Add --label compile-connected to mix xref

2. Bug fixes

EEx

• [EEx] Accept comments in EEx between do and the first clause
• [EEx] Accept EEx expressions where -> is followed by newline

Elixir

• [Application] Allow any expression as first argument of compile_env
• [Application] Warn if Application.compile_env or Application.compile_env! are called without a require
• [Code] Make sure :static_atoms_encoder in Code.string_to_quoted/2 also applies to quoted keyword keys
• [Code] Ensure bindings with no context are returned as atoms instead of {binding, nil} in eval operations
• [Inspect] Fix a bug when inspecting a non-binary bitstring with colors
• [Kernel] Reject bidirectional formatting characters in strings and comments
• [Kernel] Support escaping of terminators in uppercase sigils heredocs for consistency
• [Kernel] Raise if __CALLER__ or __ENV__ or __STACKTRACE__ are used in match
• [Kernel] Improve error message on invalid argument for byte_size from binary concat
• [Kernel] Raise when aliasing non-Elixir modules without :as
• [Kernel] Allow unquote_splicing inside %{...} without parens
• [Kernel] Ensure that waiting on a struct expansion inside a typespec is correctly tracked as waiting time in the compiler
• [Kernel] Correctly parse the atom . as a keyword list key
• [Kernel] Do not leak variables from the first generator in with and for special forms
• [Kernel] Fix column number on strings with NFD characters
• [Kernel] Fix a bug where a combination of dynamic line in quote with unquote of remote calls would emit invalid AST metadata
• [OptionParser] Validate switch types/modifiers early on to give more precise feedback
• [Protocol] Add defdelegate to the list of unallowed macros inside protocols as protocols do not allow function definitions
• [Protocol] Warn if @callback, @macrocallback and @optional_callbacks are defined inside protocol
• [Protocol] Ensure protocol metadata is deterministic on consolidation
• [Range] Always show step when range is descending
• [String] Update Unicode database to version 14.0
• [URI] Only percent decode if followed by hex digits (according to https://url.spec.whatwg.org/#percent-decode)
• [Version] Ensure proper precedence of and/or in version requirements

ExUnit

• [ExUnit] Fix formatter and counters from ExUnit.run/0 to consider all tests in a module whenever if a module's setup_all fails
• [ExUnit] Allow doctests newlines to be terminated by CRLF

IEx

• [IEx] Fix the loss of .iex.exs context after a pry session
• [IEx] Stop evaluator before exiting IEx server to avoid evaluators leaking

Logger

• [Logger] Raise clear error message for invalid :compile_time_purge_matching configuration
• [Logger] Fix a bug where Logger would not reset its discard counter under some scenarios

Mix

• [mix compile.elixir] Track transitive runtime dependencies coming from local/path dependencies
• [mix compile.elixir] Recompile file if @external_resource is deleted
• [mix compile.elixir] Print number of compiling files on all compiler cycles. This will make the Compiling N files (.ex) show up multiple times if necessary
• [mix deps] Raise if local dep is unavailable while compiling
• [mix deps.unlock] Fix blank output when unlocking a dependency that is not locked
• [mix local.install] Do not respect MIX_DEPS_PATH for install commands
• [mix release] Improve release scripts by making sure shell errors cascade (this is done by avoiding exporting and defining variables in a single step)
• [mix release] Do not boot release if RELEASE_COOKIE is empty
• [mix release] Allow releases running as a daemon to be restarted
• [mix release] Raise proper error message when non-serializable values are in configs
• [mix test] Fix coverage engine to also tag case, cond, and receive branches where the right side is a literal

3. Soft-deprecations (no warnings emitted)

Elixir

• [Code] Environment options in Code.eval_quoted/3 and Code.eval_string/3, such as :aliases and `:t...

v1.13.0-rc.1

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v1.13.0-rc.0

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v1.12.3

1. Bug fixes

Elixir

• [Code] Make sure that bindings in the default context returned by Code.eval_* functions are not returned as tagged tuples
• [Kernel] Do not crash when handling ambiguity errors
• [Range] Still match on old range patterns throughout the stdlib

IEx

• [IEx.Autocomplete] Do not error autocompletion with module attribute

Mix

• [Mix] Rename inconsistent :exit_code option to :exit_status on Mix.raise/2

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v1.12.2

1. Bug fixes

Elixir

• [Kernel] Ensure deprecated macros emit warnings

Mix

• [mix deps] Ensure unconstrained rebar deps generate valid mix specifications

2. Enhancements

Elixir

• [elixirc] Change the output of --profile time to make it easier to detect outliers
• [Application] Do not add compile time deps on args to Application.compile_env/2 and Application.compile_env!/2
• [Enum] Optimize Enum.into/3 and Map.new/2

Mix

• [mix compile] Compile most recently changed files first
• [mix compile, mix run, mix test] Speed up the time taken to load dependencies. This should make the usage of Mix inside projects quite more responsive

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v1.12.1

1. Bug fixes

Elixir

• [Code] Make sure Code.format_string!/2 formats multiline expression inside interpolation on the first run
• [Macro] Revert keeping of underscores between digits in camelize

Mix

• [Mix] Make sure Mix.install/2 expand paths for deps
• [mix deps.get] Silence false positives on httpc warnings
• [mix test] Do not run the whole suite when there are no --failed tests as it won't behave as expected inside umbrellas

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