Feature: Forward compatibility with symfony/console v5, v4, v3 and legacy v2. (#34 by @keradus and #48 by @clue)

Feature / Fix: Update all dependencies and fix handling non-lowercase package names. (#50 and #52 by @clue)

Improve documentation and installation instructions and add support / sponsorship info. (#32 by @xavismeh and #43 and #49 by @clue)

Improve build setup, add clue/phar-composer to require-dev, add build script and update development docs. (#44 by @clue)

Improve test suite by adding PHPUnit to require-dev, support legacy PHP 5.3 through PHP 7.4 and legacy HHVM and simplify test matrix. (#42 and #51 by @clue)