• Added IO tests for disk-based drivers @Geolim4
• Check file existence and availability of writable @Golodnyi
• Code optimization @Golodnyi
• Merge pull request @Geolim4
• Code optimization @bukowskiadam
• Performance improvement for Directory::getAbsolutePath() @jfcherng
• Added anti-regression test for #373 @Geolim4
• Rewrited tests @Geolim4
• Display a notice if the project is a Symfony project and does not make use of Symfony Bundle @Geolim4