With the release of PHP 4.4.9, this branch of the popular programming language will no longer be officially supported. From now on, only the fifth version will be actively developed, at least until PHP 6 is released in the coming months. End-of-life announcements are normal parts of a software project's timeline, and this one was preceded by major projects like phpMyAdmin and Drupal abandoning PHP 4 support.
PHP 6, currently under active development, will include full support for Unicode strings, in effect allowing the use of non-ASCII characters in PHP scripts, alphabetical sorting across different alphabets, and more. This will be useful to web developers worldwide -- Unicode maps the characters of all human languages, and the list of new additions (and removals) is likely to ensure the continued wide usage of this programming language.