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v0.11.3-dev

  • Enhancements

    • [Exception] Allow exception/1 to be overriden and promote it as the main mechanism to customize exceptions
    • [File] Add File.stream_to!/3
    • [Float] Add Float.floor/1 and Float.ceil/1
    • [Kernel] Add List.delete_at/2 and List.updated_at/3
    • [Kernel] Add Enum.reverse/2
    • [Kernel] Implement defmodule/2, @/1, def/2 and friends in Elixir itself. case/2, try/2 and receive/1 have been made special forms. var!/1, var!/2 and alias!/1 have also been implemented in Elixir and demoted from special forms
    • [Record] Support dynamic fields in defrecordp
    • [Stream] Add Stream.resource/3
    • [Stream] Add Stream.zip/2, Stream.filter_map/3, Stream.each/2, Stream.take_every/2, Stream.chunk/2, Stream.chunk/3, Stream.chunk/4, Stream.chunk_by/2, Stream.scan/2, Stream.scan/3, Stream.uniq/2, Stream.after/2 and Stream.run/1
    • [Stream] Support Stream.take/2 and Stream.drop/2 with negative counts
    • [Typespec] Support is_var/1 in typespecs

  • Bug fixes

    • [HashDict] Ensure a HashDict stored in an attribute can be accessed via the attribute
    • [Enum] Fix bug in Enum.chunk/4 where you'd get an extra element when the enumerable was a multiple of the counter and a pad was given
    • [IEx] Ensure c/2 helper works with full paths
    • [Kernel] quote location: :keep now only affects definitions in order to keep the proper trace in definition exceptions
    • [Mix] Also symlink include directories in _build dependencies
    • [Version] Fix Version.match?/2 with ~> and versions with alphanumeric build info (like -dev)

  • Deprecations

    • [Enum] Enumerable.count/1 and Enumerable.member?/2 should now return tagged tuples. Please see Enumerable docs for more info
    • [Enum] Deprecate Enum.chunks/2, Enum.chunks/4 and Enum.chunks_by/2 in favor of Enum.chunk/2, Enum.chunk/4 and Enum.chunk_by/2
    • [File] File.binstream!/3 is deprecated. Simply use File.stream!/3 which is able to figure out if stream or binstream operations should be used
    • [Macro] Macro.extract_args/1 is deprecated in favor of Macro.decompose_call/1
    • [Typespec] when clauses in typespecs were moved to the outer part of the spec

  • Backwards incompatible changes

    • [Enum] Behaviour of Enum.drop/2 and Enum.take/2 has been switched when given negative counts
    • [Enum] Behaviour of Enum.zip/2 has been changed to stop as soon as the first enumerable finishes
    • [Enum] Enumerable.reduce/3 protocol has changed to support suspension. Please see Enumerable docs for more info
    • [Mix] Require :escript_main_module to be set before generating escripts
    • [Range] Range.Iterator protocol has changed in order to work with the new Enumerable.reduce/3. Please see Range.Iterator docs for more info
    • [Stream] The Stream.Lazy structure has changed to accumulate functions and accumulators as we go (its inspected representation has also changed)

v0.11.2 (2013-11-14)

  • Enhancements

    • [Mix] Add mix iex that redirects users to the proper iex -S mix command
    • [Mix] Support build_per_environment: true in project configuration that manages a separete build per environment, useful when you have per-environment behaviour/compilation

  • Backwards incompatible changes

    • [Mix] Mix now compiles files to _build. Projects should update just fine, however documentation and books may want to update to the latest information

v0.11.1 (2013-11-07)

  • Enhancements

    • [Mix] Improve dependency convergence by explicitly checking each requirement instead of expecting all requirements to be equal
    • [Mix] Support optional dependencies with optional: true. Optional dependencies are downloaded for the current project but they are automatically skipped when such project is used as a dependency

  • Bug fixes

    • [Kernel] Set compilation status per ParallelCompiler and not globally
    • [Mix] Ensure Mix does not load previous dependencies versions before deps.get/deps.update
    • [Mix] Ensure umbrella apps are sorted before running recursive commands
    • [Mix] Ensure umbrella apps run in the same environment as the parent project
    • [Mix] Ensure dependency tree is topsorted before compiling
    • [Mix] Raise error when duplicated projects are pushed into the stack
    • [URI] Allow lowercase escapes in URI

  • Backwards incompatible changes

    • [Mix] Setting :load_paths in your project configuration is deprecated

v0.11.0 (2013-11-02)

  • Enhancements

    • [Code] Eval now returns variables from other contexts
    • [Dict] Document and enforce all dicts use the match operator (===) when checking for keys
    • [Enum] Add Enum.slice/2 with a range
    • [Enum] Document and enforce Enum.member?/2 to use the match operator (===)
    • [IEx] Split IEx.Evaluator from IEx.Server to allow custom evaluators
    • [IEx] Add support for IEx.pry which halts a given process for inspection
    • [IO] Add specs and allow some IO APIs to receive any data that implements String.Chars
    • [Kernel] Improve stacktraces on command line interfaces
    • [Kernel] Sigils can now handle balanced tokens as in %s(f(o)o)
    • [Kernel] Emit warnings when an alias is not used
    • [Macro] Add Macro.pipe/3 and Macro.unpipe/1 for building pipelines
    • [Mix] Allow umbrella children to share dependencies between them
    • [Mix] Allow mix to be escriptize'd
    • [Mix] Speed mix projects compilation by relying on more manifests information
    • [Protocol] Protocols now provide impl_for/1 and impl_for!/1 functions which receive a structure and returns its respective implementation, otherwise returns nil or an error
    • [Set] Document and enforce all sets use the match operator (===) when checking for keys
    • [String] Update to Unicode 6.3.0
    • [String] Add String.slice/2 with a range

  • Bug fixes

    • [Exception] Ensure defexception fields can be set dynamically
    • [Kernel] Guarantee aliases hygiene is respected when the current module name is not known upfront
    • [Kernel] Kernel.access/2 no longer flattens lists
    • [Mix] Ensure cyclic dependencies are properly handled
    • [String] Implement the extended grapheme cluster algorithm for String operations

  • Deprecations

    • [Kernel] pid_to_list/1, list_to_pid/1, binary_to_atom/2, binary_to_existing_atom/2 and atom_to_binary/2 are deprecated in favor of their counterparts in the :erlang module
    • [Kernel] insert_elem/3 and delete_elem/2 are deprecated in favor of Tuple.insert_at/3 and Tuple.delete_at/2
    • [Kernel] Use of in inside matches (as in x in [1,2,3] -> x) is deprecated in favor of the guard syntax (x when x in [1,2,3])
    • [Macro] Macro.expand_all/2 is deprecated
    • [Protocol] @only and @except in protocols are now deprecated
    • [Protocol] Protocols no longer fallback to Any out of the box (this functionality needs to be explicitly enabled by setting @fallback_to_any to true)
    • [String] String.to_integer/1 and String.to_float/1 are deprecated in favor of Integer.parse/1 and Float.parse/1

  • Backwards incompatible changes

    • [CLI] Reading .elixirrc has been dropped in favor of setting env vars
    • [Kernel] Kernel.access/2 now expects the second argument to be a compile time list
    • [Kernel] fn -> end quoted expression is no longer wrapped in a do keyword
    • [Kernel] Quoted variables from the same module must be explicitly shared. Previously, if a function returned quote do: a = 1, another function from the same module could access it as quote do: a. This has been fixed and the variables must be explicitly shared with var!(a, __MODULE__)
    • [Mix] Umbrella apps now treat children apps as dependencies. This means all dependencies will be checked out in the umbrela deps directory. On upgrade, child apps need to point to the umbrella project by setting deps_path: "../../deps_path", lockfile: "../../mix.lock" in their project config
    • [Process] Process.group_leader/2 args have been reversed so the "subject" comes first
    • [Protocol] Protocol no longer dispatches to Number, but to Integer and Float

v0.10.3 (2013-10-02)

  • Enhancements

    • [Enum] Add Enum.take_every/2
    • [IEx] IEx now respects signals sent from the Ctrl+G menu
    • [Kernel] Allow documentation for types with @typedoc
    • [Mix] Allow apps to be selected in umbrella projects
    • [Record] Generated record functions new and update also take options with strings as keys
    • [Stream] Add Stream.unfold/1

  • Bug fixes

    • [Dict] Fix a bug when a HashDict was marked as equal when one was actually a subset of the other
    • [EEx] Solve issue where do blocks inside templates were not properly aligned
    • [ExUnit] Improve checks and have better error reports on poorly aligned doctests
    • [Kernel] Fix handling of multiple heredocs on the same line
    • [Kernel] Provide better error messages for match, guard and quoting errors
    • [Kernel] Make Kernel.raise/2 a macro to avoid messing up stacktraces
    • [Kernel] Ensure &() works on quoted blocks with only one expression
    • [Mix] Address an issue where a dependency was not compiled in the proper order when specified in different projects
    • [Mix] Ensure compile: false is a valid mechanism for disabling the compilation of dependencies
    • [Regex] Fix bug on Regex.scan/3 when capturing groups and the regex has no groups
    • [String] Fix a bug with String.split/2 when given an empty pattern
    • [Typespec] Guarantee typespecs error reports point to the proper line

  • Deprecations

    • [Kernel] The previous partial application syntax (without the & operator) has now been deprecated
    • [Regex] Regex.captures/3 is deprecated in favor of Regex.named_captures/3
    • [String] String.valid_codepoint?/1 is deprecated in favor of pattern matching with <<_ :: utf8 >>

  • Backwards incompatible changes

    • [IEx] The r/0 helper has been removed as it caused surprising behaviour when many modules with dependencies were accumulated
    • [Mix] Mix.Version was renamed to Version
    • [Mix] File.IteratorError was renamed to IO.StreamError
    • [Mix] mix new now defaults to the --sup option, use --bare to get the previous behaviour

v0.10.2 (2013-09-03)

  • Enhancements

    • [CLI] Add --verbose to elixirc, which now is non-verbose by default
    • [Dict] Add Dict.Behaviour as a convenience to create your own dictionaries
    • [Enum] Add Enum.split/2, Enum.reduce/2, Enum.flat_map/2, Enum.chunk/2, Enum.chunk/4, Enum.chunk_by/2, Enum.concat/1 and Enum.concat/2
    • [Enum] Support negative indices in Enum.at/fetch/fetch!
    • [ExUnit] Show failures on CLIFormatter as soon as they pop up
    • [IEx] Allow for strings in h helper
    • [IEx] Helpers r and c can handle erlang sources
    • [Integer] Add odd?/1 and even?/1
    • [IO] Added support to specifying a number of bytes to stream to IO.stream, IO.binstream, File.stream! and File.binstream!
    • [Kernel] Include file and line on error report for overriding an existing function/macro
    • [Kernel] Convert external functions into quoted expressions. This allows record fields to contain functions as long as they point to an &Mod.fun/arity
    • [Kernel] Allow foo? and bar! as valid variable names
    • [List] Add List.replace_at/3
    • [Macro] Improve printing of the access protocol on Macro.to_string/1
    • [Macro] Add Macro.to_string/2 to support annotations on the converted string
    • [Mix] Automatically recompile a project if the Elixir version changes
    • [Path] Add Path.relative_to_cwd/2
    • [Regex] Allow erlang re options when compiling Elixir regexes
    • [Stream] Add Stream.concat/1, Stream.concat/2 and Stream.flat_map/2
    • [String] Add regex pattern support to String.replace/3
    • [String] Add String.ljust/2, String.rjust/2, String.ljust/3 and String.rjust/3
    • [URI] URI.parse/1 supports IPv6 addresses

  • Bug fixes

    • [Behaviour] Do not compile behaviour docs if docs are disabled on compilation
    • [ExUnit] Doctests no longer eat too much space and provides detailed reports for poorly indented lines
    • [File] Fix a bug where File.touch(file, datetime) was not setting the proper datetime when the file did not exist
    • [Kernel] Limit inspect results to 50 items by default to avoid printing too much data
    • [Kernel] Return a readable error on oversized atoms
    • [Kernel] Allow functions ending with ? or ! to be captured
    • [Kernel] Fix default shutdown of child supervisors to :infinity
    • [Kernel] Fix regression when calling a function/macro ending with bang, followed by do/end blocks
    • [List] Fix bug on List.insert_at/3 that added the item at the wrong position for negative indexes
    • [Macro] Macro.escape/2 can now escape improper lists
    • [Mix] Fix Mix.Version matching on pre-release info
    • [Mix] Ensure watch_exts trigger full recompilation on change with mix compile
    • [Mix] Fix regression on mix clean --all
    • [String] String.strip/2 now supports removing unicode characters
    • [String] String.slice/3 still returns the proper result when there is no length to be extracted
    • [System] System.get_env/0 now returns a list of tuples as previously advertised

  • Deprecations

    • [Dict] Dict.update/3 is deprecated in favor of Dict.update!/3
    • [Enum] Enum.min/2 and Enum.max/2 are deprecated in favor of Enum.min_by/2 and Enum.max_by/2
    • [Enum] Enum.join/2 and Enum.map_join/3 with a char list are deprecated
    • [IO] IO.stream(device) and IO.binstream(device) are deprecated in favor of IO.stream(device, :line) and IO.binstream(device, :line)
    • [Kernel] list_to_binary/1, binary_to_list/1 and binary_to_list/3 are deprecated in favor of String.from_char_list!/1 and String.to_char_list!/1 for characters and :binary.list_to_bin/1, :binary.bin_to_list/1 and :binary.bin_to_list/3 for bytes
    • [Kernel] to_binary/1 is deprecated in favor of to_string/1
    • [Kernel] Deprecate def/4 and friends in favor of def/2 with unquote and friends
    • [Kernel] Deprecate %b and %B in favor of %s and %S
    • [List] List.concat/2 is deprecated in favor of Enum.concat/2
    • [Macro] Macro.unescape_binary/1 and Macro.unescape_binary/2 are deprecated in favor of Macro.unescape_string/1 and Macro.unescape_string/2
    • [Mix] :umbrella option for umbrella paths has been deprecated in favor of :in_umbrella

  • Backwards incompatible changes

    • [IO] IO functions now only accept iolists as arguments
    • [Kernel] Binary.Chars was renamed to String.Chars
    • [Kernel] The previous ambiguous import syntax import :functions, Foo was removed in favor of import Foo, only: :functions
    • [OptionParser] parse and parse_head now returns a tuple with three elements instead of two

v0.10.1 (2013-08-03)

  • Enhancements

    • [Behaviour] Add support for defmacrocallback/1
    • [Enum] Add Enum.shuffle/1
    • [ExUnit] The :trace option now also reports run time for each test
    • [ExUnit] Add support for :color to enable/disable ANSI coloring
    • [IEx] Add the clear helper to clear the screen.
    • [Kernel] Add the capture operator &
    • [Kernel] Add support for GenFSM.Behaviour
    • [Kernel] Functions now points to the module and function they were defined when inspected
    • [Kernel] A documentation attached to a function that is never defined now prints warnings
    • [List] Add List.keysort/2
    • [Mix] :test_helper project configuration did not affect mix test and was therefore removed. A test/test_helper.exs file is still necessary albeit it doesn't need to be automatically required in each test file
    • [Mix] Add manifests for yecc, leex and Erlang compilers, making it easier to detect dependencies in between compilers and providing a more useful clean behaviour
    • [Mix] mix help now outputs information about the default mix task
    • [Mix] Add --no-deps-check option to mix run, mix compile and friends to not check dependency status
    • [Mix] Add support for MIX_GIT_FORCE_HTTPS system environment that forces HTTPS for known providers, useful when the regular git port is blocked. This configuration does not affect the mix.lock results
    • [Mix] Allow coverage tool to be pluggable via the :test_coverage configuration
    • [Mix] Add mix cmd as a convenience to run a command recursively in child apps in an umbrella application
    • [Mix] Support umbrella: true in dependencies as a convenience for setting up umbrella path deps
    • [Mix] mix run now behaves closer to the elixir command and properly mangles the ARGV
    • [String] Add Regex.scan/3 now supports capturing groups
    • [String] Add String.reverse/1

  • Bug fixes

    • [Behaviour] Ensure callbacks are stored in the definition order
    • [CLI] Speed up boot time on Elixir .bat files
    • [IEx] Reduce cases where IEx parser can get stuck
    • [Kernel] Improve error messages when the use of an operator has no effect
    • [Kernel] Fix a bug where warnings were not being generated when imported macros conflicted with local functions or macros
    • [Kernel] Document that on_definition can only be a function as it is evaluated inside the function context
    • [Kernel] Ensure %w sigils with no interpolation are fully expanded at compile time
    • [Mix] mix deps.update, mix deps.clean and mix deps.unlock no longer change all dependencies unless --all is given
    • [Mix] Always run mix loadpaths on mix app.start, even if --no-compile is given
    • [OptionParser] Do not add boolean flags to the end result if they were not given
    • [OptionParser] Do not parse non-boolean flags as booleans when true or false are given
    • [OptionParser] Ensure :keep and :integer|:float can be given together as options
    • [OptionParser] Ensure --no-flag sets :flag to false when :flag is a registered boolean switch

  • Deprecations

    • [Kernel] function(Mod.fun/arity) and function(fun/arity) are deprecated in favor of &Mod.fun/arity and &fun/arity
    • [Kernel] function/3 is deprecated in favor of Module.function/3
    • [Kernel] Kernel.ParallelCompiler now receives a set of callbacks instead of a single one
    • [Mix] :test_coverage option now expect keywords arguments and the --cover flag is now treated as a boolean

  • Backwards incompatible changes

    • [Regex] Regex.scan/3 now always returns a list of lists, normalizing the result, instead of list with mixed lists and binaries
    • [System] System.halt/2 was removed since the current Erlang implementation of such function is bugged

v0.10.0 (2013-07-15)

  • Enhancements

    • [ExUnit] Support trace: true option which gives detailed reporting on test runs
    • [HashDict] Optimize HashDict to store pairs in a cons cell reducing storage per key by half
    • [Kernel] Add pretty printing support for inspect
    • [Kernel] Add document algebra library used as the foundation for pretty printing
    • [Kernel] Add defrecordp/3 that enables specifying the first element of the tuple
    • [Kernel] Add the Set API and a hash based implementation via HashSet
    • [Kernel] Add Stream as composable, lazy-enumerables
    • [Mix] mix archive now includes the version of the generated archive
    • [Mix] Mix now requires explicit dependency overriding to be given with override: true
    • [Mix] Projects can now define an :elixir key to outline supported Elixir versions
    • [Typespec] Improve error messages to contain file, line and the typespec itself

  • Bug fixes

    • [CLI] Elixir can now run on Unix directories with : in its path
    • [Kernel] match?/2 does not leak variables to outer scope
    • [Kernel] Keep head|tail format when splicing at the tail
    • [Kernel] Ensure variables defined in the module body are not passed to callbacks
    • [Mix] On dependencies conflict, show from where each source is coming from
    • [Mix] Empty projects no longer leave empty ebin files on mix compile
    • [Module] Calling Module.register_attribute/3 no longer automatically changes it to persisted or accumulated

  • Deprecations

    • [Enum] Receiving the index of iteration in Enum.map/2 and Enum.each/2 is deprecated in favor of Stream.with_index/1
    • [File] File.iterator/1 and File.biniterator/1 are deprecated in favor of IO.stream/1 and IO.binstream/1
    • [File] File.iterator!/2 and File.biniterator!/2 are deprecated in favor of File.stream!/2 and File.binstream!/2
    • [Kernel] Deprecate recently added quote binding: ... in favor of the clearer quote bind_quoted: ...
    • [Kernel] Deprecate Kernel.float/1 in favor of a explicit conversion
    • [Mix] Deprecate mix run EXPR in favor of mix run -e EXPR
    • [Record] Record.__index__/2 deprecated in favor of Record.__record__(:index, key)

  • Backwards incompatible changes

    • [Kernel] The Binary.Inspect protocol has been renamed to Inspect

    • [Kernel] Tighten up the grammar rules regarding parentheses omission, previously the examples below would compile but now they raise an error message:

          do_something 1, is_list [], 3
    [1, is_atom :foo, 3]

    • [Module] Calling Module.register_attribute/3 no longer automatically changes it to persisted or accumulated

    • [Record] First element of a record via defrecordp is now the defrecordp name and no longer the current atom

    • [URI] Remove custom URI parsers in favor of URI.default_port/2

v0.9.3 (2013-06-23)

  • Enhancements

    • [File] Add File.chgrp, File.chmod and File.chown
    • [Kernel] Add --warnings-as-errors to Elixir's compiler options
    • [Kernel] Print warnings to stderr
    • [Kernel] Warn on undefined module attributes
    • [Kernel] Emit warning for x in [] in guards
    • [Kernel] Add binding/0 and binding/1 for retrieving bindings
    • [Kernel] quote now allows a binding as an option
    • [Macro] Add Macro.expand_once/2 and Macro.expand_all/2
    • [Mix] Implement Mix.Version for basic versioning semantics
    • [Mix] Support creation and installation of archives (.ez files)
    • [Mix] github: ... shortcut now uses the faster git schema instead of https
    • [Record] Allow types to be given to defrecordp

  • Bug fixes

    • [Kernel] The elixir executable on Windows now supports the same options as the UNIX one
    • [Kernel] Improve error messages on default clauses clash
    • [Kernel] __MODULE__.Foo now returns Foo when outside of a Module
    • [Kernel] Improve error messages when default clauses from different definitions collide
    • [Kernel] ^x variables should always refer to the value before the expression
    • [Kernel] Allow (x, y) when z in function clauses and try expressions
    • [Mix] Mix now properly evaluates rebar scripts

  • Deprecations

    • [Code] Code.string_to_ast/1 has been deprecated in favor of Code.string_to_quoted/1
    • [Macro] Macro.to_binary/1 has been deprecated in favor of Macro.to_string/1
    • [Typespec] Deprecate (fun(...) -> ...) in favor of (... -> ...)

  • Backwards incompatible changes

    • [Bitwise] Precedence of operators used by the Bitwise module were changed, check elixir_parser.yrl for more information
    • [File] rm_rf and cp_r now returns a tuple with three elements on failures
    • [Kernel] The quoted representation for -> clauses changed from a tuple with two elements to a tuple with three elements to support metadata
    • [Kernel] Sigils now dispatch to sigil_$ instead of __$__ where $ is the sigil character
    • [Macro] Macro.expand/2 now expands until final form. Although this is backwards incompatible, it is very likely you do not need to change your code, since expansion until its final form is recommended, particularly if you are expecting an atom out of it
    • [Mix] No longer support beam files on mix local

v0.9.2 (2013-06-13)

  • Enhancements

    • [ExUnit] capture_io now captures prompt by default
    • [Mix] Automatically import git dependencies from Rebar
    • [Mix] Support for dependencies directly from the umbrella application
    • [Regex] Add Regex.escape
    • [String] Add String.contains?
    • [URI] Implement Binary.Chars (aka to_binary) for URI.Info

  • Bug fixes

    • [HashDict] Ensure HashDict uses exact match throughout its implementation
    • [IEx] Do not interpret ANSI codes in IEx results
    • [IEx] Ensure --cookie is set before accessing remote shell
    • [Kernel] Do not ignore nil when dispatching protocols to avoid infinite loops
    • [Mix] Fix usage of shell expressions in Mix.Shell.cmd
    • [Mix] Start the application by default on escripts

  • Deprecations

    • [Regex] Regex.index/2 is deprecated in favor Regex.run/3
    • [Kernel] super no longer supports implicit arguments

  • Backwards incompatible changes

    • [Kernel] The =~ operator now returns true or false instead of an index

v0.9.1 (2013-05-30)

  • Enhancements

    • [IEx] Limit the number of entries kept in history and allow it to be configured
    • [Kernel] Add String.start_with? and String.end_with?
    • [Typespec] Allow keywords, e.g. [foo: integer, bar: boolean | module], in typespecs

  • Bug fixes

    • [Dict] Enum.to_list and Dict.to_list now return the same results for dicts
    • [IEx] Enable shell customization via the IEx.Options module
    • [Kernel] Fix a bug where unquote_splicing did not work on the left side of a stab op
    • [Kernel] Unused functions with cyclic dependencies are now also warned as unused
    • [Mix] Fix a bug where mix deps.get was not retrieving nested dependencies
    • [Record] Fix a bug where nested records cannot be defined
    • [Record] Fix a bug where a record named Record cannot be defined

v0.9.0 (2013-05-23)

  • Enhancements

    • [ExUnit] ExUnit.CaptureIO now accepts an input to be used during capture
    • [IEx] Add support for .iex files that are loaded during shell's boot process
    • [IEx] Add import_file/1 helper

  • Backwards incompatible changes

    • [Enum] Enum.Iterator was replaced by the more composable and functional Enumerable protocol which supports reductions
    • [File] File.iterator/1 and File.biniterator/1 have been removed in favor of the safe File.iterator!/1 and File.biniterator!/1 ones
    • [Kernel] Erlang R15 is no longer supported
    • [Kernel] Elixir modules are now represented as Elixir.ModuleName (using . instead of - as separator)

v0.8.3 (2013-05-22)

  • Enhancements

    • [CLI] Flags -p and -pr fails if pattern match no files
    • [CLI] Support --hidden and --cookie flags for distributed Erlang
    • [Enum] Add Enum.to_list/1, Enum.member?/2, Enum.uniq/2, Enum.max/1, Enum.max/2, Enum.min/1 and Enum.min/2
    • [ExUnit] Add ExUnit.CaptureIO for IO capturing during tests
    • [ExUnit] Consider load time on ExUnit time reports
    • [IEx] Support ls with colored output
    • [IEx] Add #iex:break to break incomplete expressions
    • [Kernel] Add Enum.at, Enum.fetch and Enum.fetch!
    • [Kernel] Add String.to_integer and String.to_float
    • [Kernel] Add Dict.take, Dict.drop, Dict.split, Dict.pop and Dict.fetch!
    • [Kernel] Many optimizations for code compilation
    • [Kernel] in can be used with right side expression outside guards
    • [Kernel] Add Node.get_cookie/0 and Node.set_cookie/2
    • [Kernel] Add __DIR__
    • [Kernel] Expand macros and attributes on quote, import, alias and require
    • [Kernel] Improve warnings related to default arguments
    • [Keyword] Add Keyword.delete_first/2
    • [Mix] Add local.rebar to download a local copy of rebar, and change deps.compile to use it if needed
    • [Mix] Support umbrella applications
    • [Mix] Load beam files available at MIX_PATH on CLI usage
    • [String] Add String.valid? and String.valid_character?

  • Bug fixes

    • [ExUnit] Handle exit messages from in ExUnit
    • [ExUnit] Failures on ExUnit's setup_all now invalidates all tests
    • [Kernel] Ensure we don't splice keyword args unecessarily
    • [Kernel] Private functions used by private macros no longer emit an unused warning
    • [Kernel] Ensure Elixir won't trip on empty receive blocks
    • [Kernel] String.slice now returns an empty string when out of range by 1
    • [Mix] Generate manifest files after compilation to avoid depending on directory timestamps and to remove unused .beam files
    • [Path] Path.expand/2 now correctly expands ~ in the second argument
    • [Regex] Fix badmatch with Regex.captures(%r/(.)/g, "cat")
    • [URI] Downcase host and scheme and URIs

  • Deprecations

    • [Code] Code.eval is deprecated in favor of Code.eval_string
    • [Exception] Exception.format_entry is deprecated in favor of Exception.format_stacktrace_entry
    • [ExUnit] assert left inlist right is deprecated in favor of assert left in right
    • [IO] IO.getb is deprecated in favor of IO.getn
    • [List] List.member?/2 is deprecated in favor of Enum.member?/2
    • [Kernel] var_context in quote was deprecated in favor of context
    • [Kernel] Enum.at! and Dict.get! is deprecated in favor of Enum.fetch! and Dict.fetch!

  • Backwards incompatible changes

    • [Dict] List.Dict was moved to ListDict
    • [IO] IO.gets, IO.getn and friends now return binaries when reading from stdio
    • [Kernel] Precedence of |> has changed to lower to support constructs like 1..5 |> Enum.to_list
    • [Mix] mix escriptize now receives arguments as binaries

v0.8.2 (2013-04-20)

  • Enhancements

    • [ExUnit] Use ANSI escape codes in CLI output
    • [ExUnit] Include suite run time on CLI results
    • [ExUnit] Add support to doctests, allowing test cases to be generated from code samples
    • [File] Add File.ls and File.ls!
    • [IEx] Support pwd and cd helpers
    • [Kernel] Better error reporting for invalid bitstring generators
    • [Kernel] Improve meta-programming by allowing unquote on def/2, defp/2, defmacro/2 and defmacrop/2
    • [Kernel] Add support to R16B new functions: insert_elem/3 and delete_elem/2
    • [Kernel] Import conflicts are now lazily handled. If two modules import the same functions, it will fail only if the function is invoked
    • [Mix] Support --cover on mix test and test_coverage on Mixfiles
    • [Record] Each record now provides Record.options with the options supported by its new and update functions

  • Bug fixes

    • [Binary] inspect no longer escapes standalone hash #
    • [IEx] The h helper can now retrieve docs for special forms
    • [Kernel] Record optimizations were not being triggered in functions inside the record module
    • [Kernel] Aliases defined inside macros should be carried over
    • [Kernel] Fix a bug where nested records could not use the Record[] syntax
    • [Path] Fix a bug on Path.expand when expanding paths starting with ~

  • Deprecations

    • [Kernel] setelem/3 is deprecated in favor of set_elem/3
    • [Kernel] function(:is_atom, 1) is deprecated in favor of function(is_atom/1)

  • Backwards incompatible changes

    • [Kernel] unquote now only applies to the closest quote. If your code contains a quote that contains another quote that calls unquote, it will no longer work. Use Macro.escape instead and pass your quoted contents up in steps, for example:

          quote do
      quote do: unquote(x)
    end

      should become:

          quote do
      unquote(Macro.escape(x))
    end

v0.8.1 (2013-02-17)

  • Enhancements

    • [ExUnit] Tests can now receive metadata set on setup/teardown callbacks
    • [ExUnit] Add support to ExUnit.CaseTemplate to share callbacks in between test cases
    • [IO] Add IO.ANSI to make it easy to write ANSI escape codes
    • [Kernel] Better support for Unicode lists
    • [Kernel] Reduce variables footprint in case/receive clauses
    • [Kernel] Disable native compilation when on_load attributes is present to work around an Erlang bug
    • [Macro] Macro.expand also considers macros from the current __ENV__ module
    • [Mix] Improve support for compilation of .erl files
    • [Mix] Add support for compilation of .yrl and .xrl files
    • [OptionParser] Switches are now overridden by default but can be kept in order if chosen
    • [Typespec] Better error reporting for invalid typespecs

  • Bug fixes

    • [Mix] Allow Mix projects to be generated with just one letter

  • Backwards incompatible changes

    • [Kernel] before_compile and after_compile callbacks now receive the environment as first argument instead of the module

  • Deprecations

    • [ExUnit] Explicitly defined test/setup/teardown functions are deprecated
    • [Kernel] Tidy up and clean quote API
    • [Kernel] Old :local.(args) syntax is deprecated
    • [Process] Process.self is deprecated in favor Kernel.self

v0.8.0 (2013-01-28)

  • Enhancements

    • [Binary] Support << "string" :: utf8 >> as in Erlang
    • [Binary] Support \a escape character in binaries
    • [Binary] Support syntax shortcut for specifying size in bit syntax
    • [CLI] Support --app option to start an application and its dependencies
    • [Dict] Support put_new in Dict and Keyword
    • [Dict] Add ListDict and a faster HashDict implementation
    • [ExUnit] ExUnit now supports multiple runs in the same process
    • [ExUnit] Failures in ExUnit now shows a tailored stacktrace
    • [ExUnit] Introduce ExUnit.ExpectationError to provide better error messages
    • [Kernel] Introduce Application.Behaviour to define application module callbacks
    • [Kernel] Introduce Supervisor.Behaviour to define supervisors callbacks
    • [Kernel] More optimizations were added to Record handling
    • [Kernel] ?\x and ?\ are now supported ways to retrieve a codepoint
    • [Kernel] Octal numbers can now be defined as 0777
    • [Kernel] Improve macros hygiene regarding variables, aliases and imports
    • [Mix] Mix now starts the current application before run, iex, test and friends
    • [Mix] Mix now provides basic support for compiling .erl files
    • [Mix] mix escriptize only generates escript if necessary and accept --force and --no-compile as options
    • [Path] Introduce Path module to hold filesystem paths related functions
    • [String] Add String.capitalize and String.slice
    • [System] Add System.tmp_dir, System.cwd and System.user_home

  • Bug fixes

    • [Kernel] import with only accepts functions starting with underscore
    • [String] String.first and String.last return nil for empty binaries
    • [String] String.rstrip and String.lstrip now verify if argument is a binary
    • [Typespec] Support ... inside typespec's lists

  • Backwards incompatible changes

    • [Kernel] The AST now allows metadata to be attached to each node. This means the second item in the AST is no longer an integer (representing the line), but a keywords list. Code that relies on the line information from AST or that manually generate AST nodes need to be properly updated

  • Deprecations

    • [Dict] Deprecate Binary.Dict and OrdDict in favor of HashDict and ListDict
    • [File] Deprecate path related functions in favor of the module Path
    • [Kernel] The /> operator has been deprecated in favor of |>
    • [Mix] Mix.Project.sources is deprecated in favor of Mix.Project.config_files
    • [Mix] mix iex is no longer functional, please use iex -S mix
    • [OptionParser] :flags option was deprecated in favor of :switches to support many types

v0.7.2 (2012-12-04)

  • Enhancements

    • [CLI] --debug-info is now true by default
    • [ExUnit] Make ExUnit exit happen in two steps allowing developers to add custom at_exit hooks
    • [IEx] Many improvements to helpers functions h/1, s/1 and others
    • [Kernel] Functions defined with fn can now handle many clauses
    • [Kernel] Raise an error if clauses with different arities are defined in the same function
    • [Kernel] function macro now accepts arguments in M.f/a and f/a formats
    • [Macro] Improvements to Macro.to_binary
    • [Mix] Mix now echoes the output as it comes when executing external commands such as git or rebar
    • [Mix] Mix now validates application callback's values
    • [Record] Record accessors are now optimized and can be up to 6x faster in some cases
    • [String] Support \xXX and \x{HEX} escape sequences in strings, char lists and regexes

  • Bug fixes

    • [Bootstrap] Compiling Elixir source no longer fails if environment variables contain utf-8 entries
    • [IEx] IEx will now wait for all command line options to be processed before starting
    • [Kernel] Ensure proper stacktraces when showing deprecations

  • Deprecations

    • [Enum] Enum.qsort is deprecated in favor of Enum.sort
    • [List] List.sort and List.uniq have been deprecated in favor of their Enum counterparts
    • [Record] Default-based generated functions are deprecated
    • [Typespec] Enhancements and deprecations to the @spec/@callback and the fun type syntax

v0.7.1 (2012-11-18)

  • Enhancements

    • [IEx] Only show documented functions and also show docs for default generated functions
    • [IO] Add IO.binread, IO.binwrite and IO.binreadline to handle raw binary file operations
    • [ExUnit] Add support for user configuration at HOME/.ex_unit.exs
    • [ExUnit] Add support for custom formatters via a well-defined behaviour
    • [Kernel] Add support for defrecordp
    • [Kernel] Improved dialyzer support
    • [Kernel] Improved error messages when creating functions with aliases names
    • [Mix] Improve SCM behaviour to allow more robust integration
    • [Mix] Changing deps information on mix.exs forces users to fetch new dependencies
    • [Mix] Support (parallel) requires on mix run
    • [Mix] Support -q when running tests to compile only changed files
    • [String] Support String.downcase and String.upcase according to Unicode 6.2.0
    • [String] Add support for graphemes in String.length, String.at and others
    • [Typespec] Support @opaque as attribute
    • [Typespec] Define a default type t for protocols and records
    • [Typespec] Add support for the access protocol in typespecs

  • Bug fixes

    • [Kernel] Fix an issue where variables inside clauses remained unassigned
    • [Kernel] Ensure defoverridable functions can be referred in many clauses
    • [Kernel] Allow keywords as function names when following a dot (useful when integrating with erlang libraries)
    • [File] File is opened by default on binary mode instead of utf-8

  • Deprecations

    • [Behaviour] defcallback/1 is deprecated in favor of defcallback/2 which matches erlang @callbacks
    • [Enum] Enum.times is deprecated in favor of using ranges
    • [System] halt moved to System module

v0.7.0 (2012-10-20)

  • Enhancements

    • [Behaviour] Add Behaviour with a simple callback DSL to define callbacks
    • [Binary] Add a Dict binary that converts its keys to binaries on insertion
    • [Binary] Optimize Binary.Inspect and improve inspect for floats
    • [CLI] Support --detached option
    • [Code] Code.string_to_ast supports :existing_atoms_only as an option in order to guarantee no new atoms is generated when parsing the code
    • [EEx] Support <%% and <%# tags
    • [ExUnit] Support after_spawn callbacks which are invoked after each process is spawned
    • [ExUnit] Support context data in setup_all, setup, teardown and teardown_all callbacks
    • [IEx] Support after_spawn callbacks which are invoked after each process is spawned
    • [Kernel] Better error messages when invalid options are given to import, alias or require
    • [Kernel] Allow partial application on literals, for example: { &1, &2 } to build tuples or [&1|&2] to build cons cells
    • [Kernel] Added integer_to_binary and binary_to_integer
    • [Kernel] Added float_to_binary and binary_to_float
    • [Kernel] Many improvements to unquote and unquote_splicing. For example, unquote(foo).unquote(bar)(args) is supported and no longer need to be written via apply
    • [Keyword] Keyword list is no longer ordered according to Erlang terms but the order in which they are specified
    • [List] Add List.keyreplace and List.keystore
    • [Macro] Support Macro.safe_term which returns :ok if an expression does not execute code and is made only of raw data types
    • [Mix] Add support for environments - the current environment can be set via MIX_ENV
    • [Mix] Add support for handling and fetching dependencies' dependencies
    • [Module] Support module creation via Module.create
    • [Range] Support decreasing ranges
    • [Record] Improvements to the Record API, added Record.defmacros
    • [Regex] Add :return option to Regex.run and Regex.scan
    • [String] Add a String module responsible for handling UTf-8 binaries

  • Bug fixes

    • [File] File.cp and File.cp_r now preserves the file's mode
    • [IEx] Fix a bug where printing to :stdio on IEx was causing it to hang
    • [Macro] Fix a bug where quoted expressions were not behaving the same as their non-quoted counterparts
    • [Mix] mix deps.get [DEPS] now only gets the specified dependencies
    • [Mix] Mix now exits with status 1 in case of failures
    • [Protocol] Avoid false positives on protocol dispatch (a bug caused the dispatch to be triggered to an invalid protocol)

  • Backwards incompatible changes

    • [ExUnit] setup and teardown callbacks now receives the test name as second argument
    • [Kernel] Raw function definition with def/4, defp/4, defmacro/4, defmacrop/4 now evaluates all arguments. The previous behaviour was accidental and did not properly evaluate all arguments
    • [Kernel] Change tuple-related (elem and setelem), Enum functions (find_index, nth! and times) and List functions (List.key*) to zero-index

  • Deprecations

    • [Code] Code.require_file and Code.load_file now expect the full name as argument
    • [Enum] List.reverse/1 and List.zip/2 were moved to Enum
    • [GenServer] Rename GenServer.Behavior to GenServer.Behaviour
    • [Kernel] Bitstring syntax now uses :: instead of |
    • [Kernel] Erlang. syntax is deprecated in favor of simply using atoms
    • [Module] Module.read_attribute and Module.add_attribute deprecated in favor of Module.get_attribute and Module.put_attribute which mimics Dict API

v0.6.0 (2012-08-01)

  • Backwards incompatible changes

    • [Kernel] Compile files now follow Elixir-ModuleName convention to solve issues with Erlang embedded mode. This removes the __MAIN__ pseudo-variable as modules are now located inside Elixir namespace
    • [Kernel] __using__ callback triggered by use now receives just one argument. Caller information can be accessed via macros using __CALLER__
    • [Kernel] Comprehensions syntax changed to be more compatible with Erlang behavior
    • [Kernel] loop and recur are removed in favor of recursion with named functions
    • [Module] Removed data functions in favor of unifying the attributes API

  • Deprecations

    • [Access] The semantics of the access protocol were reduced from a broad query API to simple data structure key-based access
    • [ExUnit] Some assertions are deprecated in favor of simply using assert()
    • [File] File.read_info is deprecated in favor of File.stat
    • [IO] IO.print is deprecated in favor of IO.write
    • [Kernel] Deprecate __LINE__ and __FUNCTION__ in favor of __ENV__.line and __ENV__.function
    • [Kernel] Deprecate in_guard in favor of __CALLER__.in_guard?
    • [Kernel] refer is deprecated in favor of alias
    • [Module] Module.add_compile_callback(module, target, callback) is deprecated in favor of Module.put_attribute(module, :before_compile, { target, callback })
    • [Module] Module.function_defined? is deprecated in favor of Module.defines?
    • [Module] Module.defined_functions is deprecated in favor of Module.definitions_in

  • Enhancements

    • [Enum] Enhance Enum protocol to support Enum.count
    • [Enum] Optimize functions when a list is given as collection
    • [Enum] Add find_index, nth! and others
    • [ExUnit] Support setup and teardown callbacks
    • [IEx] IEx now provides autocomplete if the OS supports tty
    • [IEx] IEx now supports remsh
    • [IEx] Elixir now defaults to compile with documentation and d can be used in IEx to print modules and functions documentation
    • [IEx] Functions c and m are available in IEx to compile and print available module information. Functions h and v are available to show history and print previous commands values
    • [IO/File] Many improvements to File and IO modules
    • [Kernel] Operator ! is now allowed in guard clauses
    • [Kernel] Introduce operator =~ for regular expression matches
    • [Kernel] Compiled docs now include the function signature
    • [Kernel] defmodule do not start a new variable scope, this improves meta-programming capabilities
    • [Kernel] quote special form now supports line and unquote as options
    • [Kernel] Document the macro @ and allow attributes to be read inside functions
    • [Kernel] Add support to the %R sigil. The same as %r, but without interpolation or escaping. Both implementations were also optimized to generate the regex at compilation time
    • [Kernel] Add __ENV__ which returns a Macro.Env record with information about the compilation environment
    • [Kernel] Add __CALLER__ inside macros which returns a Macro.Env record with information about the calling site
    • [Macro] Add Macro.expand, useful for debugging what a macro expands to
    • [Mix] First Mix public release
    • [Module] Add support to @before_compile and @after_compile callbacks. The first receives the module name while the latter receives the module name and its object code
    • [OptionParser] Make OptionParser public, add support to flags and improved switch parsing
    • [Range] Add a Range module with support to in operator (x in 1..3) and iterators
    • [Record] Allow Record[_: value] to set a default value to all records fields, as in Erlang
    • [Record] Records now provide a to_keywords function
    • [Regex] Back references are now properly supported
    • [System] Add System.find_executable

v0.5.0 (2012-05-24)

  • First official release