“PHP 5.4.0 will arrive soon. The PHP team is working to bring to
some very nice presents to PHP developers. In the previous release
of 5.3.0 they had added a few language changes. This version is no
different. Some of the other changes include the ability to use
DTrace for watching PHP apps in BSD variants (there is a loadable
kernel module for Linux folks).This release features many speed and security improvements along
with some phasing out of older language features (Y2K compliance is
no longer optional). The mysql extensions for ext/mysql, mysqli,
and pdo now use the MySql native driver (mysqlnd). This release
also improves support for multibyte strings.