v1.4.3

Note: This release had a regression that has been immediately fixed on version 1.4.4.

This version includes changes that make Elixir fully compatible with Erlang OTP 20-rc.1.

1. Enhancements

Elixir

• [Kernel] Improve compilation time for modules with many clauses
• [Map] Warn when attempting to override __struct__ key
• [Regex] Add recompile/1 and recompile!/1 to ease transition to OTP 20 for archives and stored regexes

Logger

• [Logger.Translator] Handle OTP 20 GenServer log messages

Mix

• [mix compile] Recompile projects if OTP version changes

2. Bug fixes

Elixir

• [Kernel] Fix code generation when non-binary bitstrings are in AST
• [Record] Properly escape fields passed to defrecord

ExUnit

• [ExUnit.Diff] Do not fail when comparing maps with nil or boolean keys

IEx

• [IEx.Helpers] Do not log exits on IEx.Helpers.c/2 failures

Mix

• [mix archive.install] Detect proper path on URLs with query strings
• [mix loadpaths] Do not assume all paths in loadpaths exist

v1.4.2

1. Bug fixes

EEx

• [EEx] Support middle expressions on trim mode

Elixir

• [Calendar] Correct typo on Calendar types
• [Kernel] Ensure redefined functions point to the proper source
• [OptionParser] Add :allow_nonexistent_atoms to support unsafe behaviour prior to v1.4
• [Stream] Allow consuming multiple items from suspended enumerable in Stream.transform/3
• [String] Incorporate new grapheme rules in Unicode 9

IEx

• [IEx.Autocomplete] Do not crash on aliases which are not known at compile time

Mix

• [Mix.Umbrella] Ensure umbrella projects can depend on other umbrella projects
• [Mix.Archive] Ensure previous archives with .ez extension are deleted

v1.4.1

1. Bug fixes

Elixir

• [Kernel] Remove warning when making private functions overridable
• [Path] Ensure Path.join/1 returns strings for lists of one element
• [Regex] Ensure Regex.escape/1 also escapes -

IEx

• [IEx] Disable ANSI detection for powershell to avoid false positives

Mix

• [Mix.Make] Run make clean for erlang.mk
• [Mix.Rebar] Support all of rebar3 dependency package declaration
• [Mix.Rebar] Only pass overrides from parent to child in Rebar dep

v1.4.0

Official announcement: https://elixir-lang.org/blog/2017/01/05/elixir-v1-4-0-released/

1. Enhancements

Elixir

• [Calendar] Add Date.compare/2, Time.compare/2, NaiveDateTime.compare/2 and DateTime.compare/2
• [Calendar] Support NaiveDateTime.add/3 and NaiveDateTime.diff/3 for adding seconds (up to microseconds) as well as the difference between two NaiveDateTimes in seconds (up to microseconds)
• [Calendar] Add Date.leap_year?/1 and Date.day_of_week/1
• [Calendar] Ensure Date, Time and NaiveDateTime APIs work with any struct that provides the same set of fields as their respective struct. For example, a NaiveDateTime can be given to Date since it contains a superset of the fields in the Date struct
• [Enum] Add Enum.map_every/2 that invokes the given function with every nth item
• [Enum] Add min/2, max/2, min_max/2, min_by/3, max_by/3, and min_max_by/3 that allow a function specifying the default value when the enumerable is empty
• [Enum] Introduce Enum.zip/1 to zip multiple entries at once
• [Float] Introduce Float.ratio/1 that returns a tuple with the numerator and denominator as integers to retrieve the given float
• [GenServer] Log warn on default handle_info/2 implementation
• [Inspect] Support syntax coloring via the :syntax_color option
• [Integer] Integer.digits/2 now accepts negative integers
• [Integer] Add Integer.mod/2 and Integer.floor_div/2
• [IO] Add :label option to IO.inspect/2 to help distinguish multiple IO.inspect/2 calls.
• [Kernel] Recognize merge conflict markers in source and provide a readable error message
• [Kernel] Warn on unused module attributes
• [Kernel] Improve compiler message on unexpected end of line
• [Kernel] Raise BadBooleanError when a non-boolean is given on the left-hand side of and/or
• [List] Add List.pop_at/3
• [List] Add List.myers_difference/2
• [OptionParser] Expand multi-letter aliases in OptionParser
• [Process] Add Process.send_after/4
• [Process] Improve error messages on Process.register/2 errors
• [Registry] Add a local, decentralized and scalable key-value process storage
• [Stream] Add Stream.map_every/2 that invokes the given function with every nth item
• [Stream] Introduce Stream.zip/1 to lazily zip multiple entries at once
• [String] Update to Unicode 9.0.0
• [Task] Add Task.async_stream/3 and Task.async_stream/5 as well as the supervised versions Task.Supervisor.async_stream/4 and Task.Supervisor.async_stream/6
• [URI] Allow 0 as URI scheme default port

ExUnit

• [ExUnit.Diff] Use red or green background for whitespace-only diffs
• [ExUnit.Doctest] Allow inspected structures with multiples lines and unicode characters in the doctest result
• [ExUnit.Formatter] Replace lhs/rhs with left/right in the formatter for clarity

IEx

• [IEx.Autocomplete] Stop appending a trailing dot when autocompleting modules in IEx
• [IEx.Autocomplete] Support autocompletion for structs
• [IEx.Autocomplete] Improve IEx autocomplete to support navigating map atom keys
• [IEx.Helpers] c/1 now compiles in memory by default to avoid common issue where .beam files remain at projects root directory
• [IEx.Helpers] Add info about protocols in i/1
• [IEx.Server] Support interrupting IEx evaluation through the Ctrl+G prompt

Mix

• [mix archive] Compress archive files built by mix archive as they are now unzipped during installation
• [mix archive] Install from SCM
• [mix compile] Automatically infer the list of applications for Mix projects
• [mix cmd] Add the ability to specify one or more apps in mix cmd
• [mix deps] Warn if there are non-applications in the apps directory for umbrella projects
• [mix deps] Add warning for invalid paths on mix deps.clean
• [mix deps] Add Mix.Project.apps_paths that returns the paths to children applications in umbrella projects
• [mix deps] Add MIX_REBAR environment variable for overriding local rebar
• [mix escript] Install from SCM
• [mix new] Check directory existence in mix new and ask how to proceed if one exists
• [mix new] Applications built with the --sup flag now have an individual module to work as application callback
• [mix test] Add --formatter option to mix test
• [mix xref] Provide "did you mean?" suggestions for mix xref

2. Bug fixes

Elixir

• [Access] Do not accept nils in Access.key/1 and Access.key/2 in favor of explicit default values (or Access.key!/1 if you expect the key to always be available)
• [Float] Avoid multiple roundings in Float.ceil/2, Float.floor/2 and Float.round/2
• [Kernel] Don't crash in macro_exported?/3 when dealing with Erlang modules
• [Kernel] Ensure locals calls are rewritten when calling a local function or macro from inside a module
• [Kernel] Annotate the context for variables as zero-arity funs in quotes
• [Kernel.SpecialForms] Ensure comprehensions with guards and filters keep proper ordering,
• [Kernel.SpecialForms] Produce meaningful warning when with's else clauses have no effect
• [Macro] Wrap fn calls in parens in Macro.to_string/2
• [Macro] Do not print aliases as keys inside keyword lists in Macro.to_string/2
• [OptionParser] Support options in OptionParser.to_argv/2 to ensure :count switches are correctly encoded
• [Stream] Ensure Stream.take/2 does not consume next element on :suspend
• [String] Fix infinite recursion in String.replace_leading/3 and String.replace_trailing/3 when given an empty string
• [Task] Fix Task.shutdown/1,2 infinite block when task has no monitor
• [Task] Ensure task cannot link after parents unlinks

ExUnit

• [ExUnit] Fix a race condition in assert_receive where we would assert a message was not received but show it in the list of messages when the message is delivered right after the timeout value

IEx

• [IEx.Helpers] Purge consolidated protocols before and after recompile/0

Mix

• [Mix.Dep] Use gmake on FreeBSD instead of make when compiling make dependencies
• [Mix.Project] Only copy files from source when they're newer than destination (for Windows machines)
• [Mix.Task] Ensure non-recursive tasks inside umbrella are reenabled

3. Soft deprecations (no warnings emitted)

Elixir

• [Enum] Enum.partition/2 has been deprecated in favor of Enum.split_with/2
• [System] Deprecate plural time units in favor of singular ones to align with future Erlang releases

ExUnit

• [ExUnit] Using GenEvent to implement ExUnit formatters is deprecated. Please use the new GenServer based formatters instead

4. Deprecations

Elixir

• [Access] Access.key/1 is deprecated due to erratic behaviour for missing keys, please use Access.key/2 instead with proper default values
• [Behaviour] The Behaviour module is deprecated. Callbacks may now be defined directly via the @callback attribute
• [Enum] Deprecate Enum.uniq/2 in favor of Enum.uniq_by/2
• [Float] Float.to_char_list/2 and Float.to_string/2 are deprecated (use the :erlang functions if such conversions are desired)
• [Kernel] Deprecate support for making private functions overridable. Overridable functions must always be public as they must be contracts
• [Kernel] Warn if variable is used as a function call
• [OptionParser] Deprecate aliases with multiple letters, such as -abc
• [Set] Deprecate the Set module
• [Stream] Deprecate Stream.uniq/2 in favor of Stream.uniq_by/2

IEx

• [IEx.Helpers] import_file/2 is deprecated in favor of import_file_if_available/1

Mix

• [Mix.Utils] underscore/1 and camelize/1 are deprecated

v1.4.0-rc.1

Release v1.4.0-rc.1

v1.4.0-rc.0

Release v1.4.0-rc.0

v1.3.4

1. Bug fixes

Elixir

• [Kernel] Ensure the compiler does not generate unecessary variable bindings inside case statements. This improves the code emitted and make sure "unused variable warnings" are not mistakenly silenced
• [Kernel] Move raise checks to runtime to avoid crashing cover on Erlang 19.1
• [Protocol] Do not emit warnings when using protocols on opaque types

ExUnit

• [ExUnit.CaptureLog] Flush Erlang's :error_logger before capturing to avoid mixed messages

v1.3.3

1. Enhancements

Elixir

• [DateTime] Support negative integer in DateTime.from_unix/2
• [Kernel.LexicalTracker] Do not consider remote typespecs as a compile-time dependency
• [Kernel.ParallelCompiler] Do not emit deadlock messages when the process is waiting on itself
• [Kernel.Typespec] Mark struct update syntax as generated to avoid false positives from dialyzer

ExUnit

• [ExUnit] Make ExUnit server timeout configurable

Logger

• [Logger] Use :ansi_color if one is available in metadata

Mix

• [Mix] Add support for the :sparse option in Mix.SCM.Git
• [Mix] Skip dependendency loading if MIX_NO_DEPS is set to 1

2. Bug fixes

Elixir

• [System] Use NUL instead of /dev/null on Windows when building System.build_info

IEx

• [IEx.Autocomplete] Resolves issue with autocompletion on structs not working

Mix

• [Mix] Also store external resources that are not part of the current working directory in compilation manifest
• [Mix] Always include the compiled file source in manifests

v1.3.2

1. Enhancements

Elixir

• [Kernel] Support guards in else clauses in with

Mix

• [Mix] Add MIX_NO_DEPS env var for disabling dep loading. Used for third-party scripts and tools like Nix package manager
• [Mix] Add mix test --listen-on-stdin that automatically reruns tests on stdin
• [Mix] Disable --warnings-as-errors when compiling dependencies
• [Mix] Add --filter option to mix deps.unlock to unlock only matching dependencies

2. Bug fixes

Elixir

• [Enum] Return nil if enumerable halts in Enum.find_index/3
• [Kernel] Do not attempt to load modules that have not been required when invoking regular functions, otherwise this invalidates the @compile {:autoload, false} directive.

Mix

• [Mix] Ensure missing protocol dependencies are discarded in umbrella projects with shared build

ExUnit

• [ExUnit.Diff] Ensure no leading or trailing when diffing some maps

v1.3.1

1. Enhancements

IEx

• [IEx.Helpers] Add import_file_if_available for importing files only if they are available
• [IEx.Helpers] Add import_if_available for importing modules only if they are available

2. Bug fixes

Elixir

• [Kernel] Ensure structs can be expanded in dynamic module names
• [Kernel] Ensure aliases warnings are not accidentally discarded when the same module is imported
• [Kernel.ParallelCompiler] Ensure two modules with cyclic struct dependencies cannot run into a deadlock when compiling
• [Kernel.Typespec] Support module attributes in remote types
• [Module] Do not expect stacktraces to be always present when dispatching to locals during the module compilation

IEx

• [IEx.Helpers] Fix h helper for operators

Mix

• [Mix] Do not load modules for xref purposes, instead use BEAM info
• [Mix] Ensure deps.check does not check archives (that's done in loadpaths)
• [Mix] Validate application properties before traversing them
• [Mix] Check for proper Makefile when compiling on Windows
• [Mix] Enforce space after comma in mix do