Yup, The time has come, developers agree, It is now official,
Flyspray 1.0 (
to be out by the end of this year) will be the last version with PHP4 support, in the future our software will run exclusively on PHP 5.1 or later (including use of features present in PHP 5.2 as well upcoming PHP6), this will help us to cleanup and improve our code significantly and make use of the enormous amount of benefits that PHP5 provides.
We are joining among other FOSS projects like phpMyAdmin, Drupal, Typo3, Symfony to the
GoPHP5 initiative so, effectively on February 5, 2008 we will only produce and recieve code contributions that runs in PHP5 and are E_STRICT error mode aware.
However, the last PHP4 releases will still be mantained but only for
security bugs or major regressions, no new features. for at least 3/4 months since the 1.0 release, so you have more than a year from now on to upgrade your PHP version.
It is time to move on folks, PHP4 is dead, long live to PHP5.
Update: In fact, already version 1.0 will be PHP5 only. The release date is still unkown though.