Quite a bit of work was done developing PHP 6 with the goal of adding complete native Unicode support to PHP. However, the project faltered and some of the work was eventually pushed back into minor version releases of PHP 5 while full support for Unicode was never added. When work on the next version of PHP began, originally called PHP Next Generation (phpng), the decision was made to name the version PHP 7 to avoid creating any confusion as to whether or not the features tabbed for inclusion in PHP 6 had been included.