-
enhancements
-
bug fix
-
deprecations
-
backwards incompatible changes
-
enhancements
- [File] Add
File.chgrp
,File.chmod
andFile.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
andbinding/1
for retrieving bindings - [Kernel]
quote
now allows a binding as an option - [Macro] Add
Macro.expand_once/2
andMacro.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 fastergit
schema instead ofhttps
- [Record] Allow types to be given to
defrecord
anddefrecordp
- [File] Add
-
bug fix
- [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 returnsFoo
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 ofCode.string_to_quoted/1
- [Macro]
Macro.to_binary/1
has been deprecated in favor ofMacro.to_string/1
- [Typespec] Deprecate
(fun(...) -> ...)
in favor of(... -> ...)
- [Code]
-
backwards incompatible changes
- [Bitwise] Precedence of operators used by the Bitwise module were changed. Check
elixir_parser.yrl
for more information. - [File]
rm_rf
andcp_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 caracter - [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
- [Bitwise] Precedence of operators used by the Bitwise module were changed. Check
-
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
(akato_binary
) forURI.Info
- [ExUnit]
-
bug fix
- [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 favorRegex.run/3
- [Kernel]
super
no longer supports implicit arguments
- [Regex]
-
backwards incompatible changes
- [Kernel] The
=~
operator now returns true or false instead of an index
- [Kernel] The
-
enhancements
- [IEx] Limit the number of entries kept in history and allow it to be configured
- [Kernel] Add
String.start_with?
andString.end_with?
- [Typespec] Allow keywords, e.g.
[foo: integer, bar: boolean | module]
, in typespecs
-
bug fix
- [Dict]
Enum.to_list
andDict.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
- [Dict]
-
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
- [ExUnit]
-
backwards incompatible changes
- [Enum]
Enum.Iterator
was replaced by the more composable and functionalEnumerable
protocol which supports reductions - [File]
File.iterator/1
andFile.biniterator/1
have been removed in favor of the safeFile.iterator!/1
andFile.biniterator!/1
ones - [Kernel] Erlang R15 is no longer supported
- [Kernel] Elixir modules are now represented as
Elixir.ModuleName
(using.
instead of-
as separator)
- [Enum]
-
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
andEnum.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
andEnum.fetch!
- [Kernel] Add
String.to_integer
andString.to_float
- [Kernel] Add
Dict.take
,Dict.drop
,Dict.split
,Dict.pop
andDict.fetch!
- [Kernel] Many optimizations for code compilation
- [Kernel]
in
can be used with right side expression outside guards - [Kernel] Add
Node.get_cookie/0
andNode.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 changedeps.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?
andString.valid_character?
- [CLI] Flags
-
bug fix
- [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 ofCode.eval_string
- [Exception]
Exception.format_entry
is deprecated in favor ofException.format_stacktrace_entry
- [ExUnit]
assert left inlist right
is deprecated in favor ofassert left in right
- [IO]
IO.getb
is deprecated in favor ofIO.getn
- [List]
List.member?/2
is deprecated in favor ofEnum.member?/2
- [Kernel]
var_context
in quote was deprecated in favor ofcontext
- [Kernel]
Enum.at!
andDict.get!
is deprecated in favor ofEnum.fetch!
andDict.fetch!
- [Code]
-
backwards incompatible changes
- [Dict]
List.Dict
was moved toListDict
- [IO]
IO.gets
,IO.getn
and friends now return binaries when reading from stdio - [Kernel] Precedence of
|>
has changed to lower to support constructs like1..5 |> Enum.to_list
- [Mix]
mix escriptize
now receives arguments as binaries
- [Dict]
-
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
andFile.ls!
- [IEx] Support
pwd
andcd
helpers - [Kernel] Better error reporting for invalid bitstring generators
- [Kernel] Improve meta-programming by allowing
unquote
ondef/2
,defp/2
,defmacro/2
anddefmacrop/2
- [Kernel] Add support to R16B new functions:
insert_elem/3
anddelete_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 andtest_coverage
on Mixfiles - [Record] Each record now provides
Record.options
with the options supported by itsnew
andupdate
functions
-
bug fix
- [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~
- [Binary] inspect no longer escapes standalone hash
-
deprecations
- [Kernel]
setelem/3
is deprecated in favor ofset_elem/3
- [Kernel]
function(:is_atom, 1)
is deprecated in favor offunction(is_atom/1)
- [Kernel]
-
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. UseMacro.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
-
-
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 fix
- [Mix] Allow Mix projects to be generated with just one letter
-
backwards incompatible changes
- [Kernel]
before_compile
andafter_compile
callbacks now receive the environment as first argument instead of the module
- [Kernel]
-
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 favorKernel.self
-
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
inDict
andKeyword
- [Dict] Add
ListDict
and a fasterHashDict
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
andString.slice
- [System] Add
System.tmp_dir
,System.cwd
andSystem.user_home
- [Binary] Support
-
bug fix
- [Kernel]
import
withonly
accepts functions starting with underscore - [String]
String.first
andString.last
return nil for empty binaries - [String]
String.rstrip
andString.lstrip
now verify if argument is a binary - [Typespec] Support
...
inside typespec's lists
- [Kernel]
-
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
andOrdDict
in favor ofHashDict
andListDict
- [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 ofMix.Project.config_files
- [Mix]
mix iex
is no longer functional, please useiex -S mix
- [OptionParser]
:flags
option was deprecated in favor of:switches
to support many types
- [Dict] Deprecate
-
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 inM.f/a
andf/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
- [CLI]
-
bug fix
- [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 ofEnum.sort
- [List]
List.sort
andList.uniq
have been deprecated in favor of theirEnum
counterparts - [Record] Default-based generated functions are deprecated
- [Typespec] Enhancements and deprecations to the
@spec/@callback
and the fun type syntax
- [Enum]
-
enhancements
- [IEx] Only show documented functions and also show docs for default generated functions
- [IO] Add
IO.binread
,IO.binwrite
andIO.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
andString.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 fix
- [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 ofdefcallback/2
which matches erlang@callbacks
- [Enum]
Enum.times
is deprecated in favor of using ranges - [System]
halt
moved toSystem
module
- [Behaviour]
-
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
andteardown_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
orrequire
- [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
andbinary_to_integer
- [Kernel] Added
float_to_binary
andbinary_to_float
- [Kernel] Many improvements to
unquote
andunquote_splicing
. For example,unquote(foo).unquote(bar)(args)
is supported and no longer need to be written viaapply
- [Keyword] Keyword list is no longer ordered according to Erlang terms but the order in which they are specified
- [List] Add
List.keyreplace
andList.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 toRegex.run
andRegex.scan
- [String] Add a String module responsible for handling UTf-8 binaries
-
bug fix
- [File]
File.cp
andFile.cp_r
now preserves the file's mode - [IEx] Fix a bug where printing to
:stdio
onIEx
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)
- [File]
-
backwards incompatible changes
- [ExUnit]
setup
andteardown
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
andsetelem
), Enum functions (find_index
,nth!
andtimes
) and List functions (List.key*) to zero-index
- [ExUnit]
-
deprecations
- [Code]
Code.require_file
andCode.load_file
now expect the full name as argument - [Enum]
List.reverse/1
andList.zip/2
were moved toEnum
- [GenServer] Rename
GenServer.Behavior
toGenServer.Behaviour
- [Kernel] Bitstring syntax now uses
::
instead of|
- [Kernel]
Erlang.
syntax is deprecated in favor of simply using atoms - [Module]
Module.read_attribute
andModule.add_attribute
deprecated in favor ofModule.get_attribute
andModule.put_attribute
which mimics Dict API
- [Code]
-
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 insideElixir
namespace - [Kernel]
__using__
callback triggered byuse
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
- [Kernel] Compile files now follow
-
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 ofFile.stat
- [IO]
IO.print
is deprecated in favor ofIO.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 ofalias
- [Module]
Module.add_compile_callback(module, target, callback)
is deprecated in favor ofModule.put_attribute(module, :before_compile, { target, callback })
- [Module]
Module.function_defined?
is deprecated in favor ofModule.defines?
- [Module]
Module.defined_functions
is deprecated in favor ofModule.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
andm
are available in IEx to compile and print available module information. Functionsh
andv
are available to show history and print previous commands values - [IO/File] Many improvements to
File
andIO
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 aMacro.Env
record with information about the compilation environment - [Kernel] Add
__CALLER__
inside macros which returns aMacro.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
- [Enum] Enhance Enum protocol to support
- First official release