v0.3.1

• Only stable packages pulled by composer

v0.3.0

• Use hash_equals for comparing strings securely
• Adds backwards compatibility with older version of PHP

v0.2.2

• Fixes unit tests for newer versions of PHP

v0.2.1

• Only remove merchant signature param

v0.2.0

• Added to packagist
• Filters the merchant sig key automatically

v0.1.0

Now uses a class providing two new methods

• generate
• validate

v0.0.1

Initial implementation

• Generates a valid HMAC using a function