0.10.0

Support trace: true option which gives detailed reporting on test runs

Optimize HashDict to store pairs in a cons cell reducing storage per key by half

Add pretty printing support for inspect

Add document algebra library used as the foundation for pretty printing

Add defrecordp/3 that enables specifying the first element of the tuple

Add the Set API and a hash based implementation via HashSet

Add Stream as composable, lazy-enumerables

mix archive now includes the version of the generated archive

Mix now requires explicit dependency overriding to be given with override: true

Projects can now define an :elixir key to outline supported Elixir versions

Improve error messages to contain file, line and the typespec itself

Elixir can now run on Unix directories with : in its path

match?/2 does not leak variables to outer scope

Keep head|tail format when splicing at the tail

Ensure variables defined in the module body are not passed to callbacks

On dependencies conflict, show from where each source is coming from

Empty projects no longer leave empty ebin files on mix compile

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

Receiving the index of iteration in Enum.map/2 and Enum.each/2 is deprecated in favor of Stream.with_index/1

File.iterator/1 and File.biniterator/1 are deprecated in favor of IO.stream/1 and IO.binstream/1

File.iterator!/2 and File.biniterator!/2 are deprecated in favor of File.stream!/2 and File.binstream!/2

Deprecate recently added quote binding: ... in favor of the clearer quote bind_quoted: ...

Deprecate Kernel.float/1 in favor of a explicit conversion

Deprecate mix run EXPR in favor of mix run -e EXPR

Record.__index__/2 deprecated in favor of Record.__record__(:index, key)

The Binary.Inspect protocol has been renamed to Inspect

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

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

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

Remove custom URI parsers in favor of URI.default_port/2