0.1.5

• Add UNICODE_VERSION constant to Idna class that returns a string with the Unicode version of the data files used
• Update data files to Unicode 14
• Update PHPStan to 1.0

0.1.4

• Handle the rare possibility that string nomalization can fail
• Test on PHP 8 release

0.1.3

• Fix bug with domain names containing a URL delimiter

0.1.2

• Performance improvements.

0.1.1

• Performance improvements
• Reduced memory footprint

0.1.0

Initial release