News: <a href="/blog/2012/12/04/elixir-v0-7-2-released/">Elixir v0.7.2 released</a>

layout: post

title: Elixir v0.7.2 released

author: Yurii Rashkovskii

category: Releases

excerpt: Elixir v0.7.2 is released, new, improved type specifications syntax and many other improvements.

Hot out of the oven! We just released Elixir v0.7.2 with a number of delicious improvements.

One of the most important changes in this minor release is a partial rehaul of

the type specification syntax.

Here's the gist:

@spec myfun(integer), do: integer

# becomes

@spec myfun(integer) :: integer

@type a :: fun

# becomes

@type a :: (... -> any) or ((...) -> any) or (fun(...) -> any)

@type a :: fun(do: integer)

# becomes

@type a :: (() -> integer) or (fun() -> integer)

@type a :: fun(integer, do: integer)

# becomes

@type a :: (integer -> integer) or ((integer) -> integer) or (fun(integer) -> integer)

@type a :: fun(integer, integer, do: integer)

# becomes

@type a :: (integer, integer -> integer) or ((integer, integer) -> integer) or (fun(integer, integer) -> integer)

Another change is that Mix now echoes the output of external tools

such as git and rebar, and handles exit status correctly. This have previously

led to some less-than-perfect workflows.

We've also added a more compact and visual form of the `function` helper. Now, instead of `function(Enum, :all?, 2)` you can use `function(Enum.all?/2)`.

We've also figured out how to achieve an up to 6x [performance increase](https://github.com/elixir-lang/elixir/blob/v0.7.2/lib/elixir/lib/kernel.ex#L1386-L1417) when using records.

...and [many other fixes & improvements](https://github.com/elixir-lang/elixir/blob/v0.7.2/CHANGELOG.md).

Lastly, but not least importantly, I'd like to mention that we're very excited about how the community around Elixir is building up. Thank you all for being around and supporting us!

[Learn more about Elixir](/getting_started/1.html)!