Security issues with git : upted required for Git clients

Even though the issue may not affect Linux users, if you are a
hosting service whose users may fetch from your service to Windows
or Mac OS X machines, you are strongly encouraged to update to
protect such users who use existing versions of Git.

source :  

 http://article.gmane.org/gmane.linux.kernel/1853266

 Updated versions on Github are here :

 GitHub for Windows and GitHub for Mac 

making underscore.js dependency to angular js

var app = angular.module('app', ['underscore']);
app.controller('AppController', ['$scope', '_', function ($scope, _) {
  initialize = function () {
    _.keys($scope);
  }
  initialize();
}]);

underscore.factory('_', function () {
  return window._;
});

Ruby 2.1.0 some useful changes

return in lambda
def yield_me
 yield
end

def run
  yield_me(&lambda {return "call from lambda"})
  "call from run method"
end

run   #=> "call from run method"
The example above would have returned "call from lambda" in  Ruby  previous ruby versions
---------------------------------------------------------------------------------------------------------------
#singleton_class?
class Test
  singleton_class?     #=> false
  class << self
    singleton_class?   #=> true
  end
end

Object#singleton_method
class Test
  def self.one
  end

  def two
  end
end

# returns class method
Test.singleton_method(:one)    #=> #
# doesn't return instance method
Test.singleton_method(:two)   #=> #-----------------------------------------------------------------------------------------------------------------
Method#original_name
To return the un-aliased name.
class Example
  def foo
    "foo"
  end
  alias bar foo
end

example = Example.new
example.method(:foo).original_name            #=> :foo
example.method(:bar).original_name            #=> :foo
Example.instance_method(:bar).original_name   #=> :foo



For more changes please visit here: 

https://github.com/ruby/ruby/blob/v2_1_0/NEWS

Ruby 2.1 and Garbage Collection issue and memory bloats in production unicorn and Phusion passenger

Are you working with Unicorn and getting memory leak issues with ruby 2.1 . A better explained scenario on memory allocation on heap with huge strings ,array and hashes in Ruby 2.1 by this author himself here :

 http://www.atdot.net/~ko1/activities/rubyconf2013-ko1_pub.pdf 

Whats the problem?

Tim Robertson explained this scenario  in his blog :
http://www.omniref.com/blog/blog/2014/03/27/ruby-garbage-collection-still-not-ready-for-production/

Well not sure about unicorn solution but Aman Gupta has a solution for Phusion Passenger.
as announced an Out-Of-Band garbage collector for Ruby 2.1.

Here is the Phusion Passenger blog on that one and usage. 

Phusion Passenger now supports the new Ruby 2.1 Out-Of-Band GC.