Chapter 30. Software Upgrades

Throughout this book, you've been reminded to seek out information regarding new versions of PHP, Apache, and MySQL, and to be mindful of updates. Also, you've been shown how to add functionality to PHP at build time, but only in the context of installing the software. In this short chapter, you'll learn how to update your already-installed software over the normal course of time, without wrecking havoc on your system, including

• How to keep up-to-date with new software releases

• How to upgrade between minor versions of MySQL

• How to upgrade between minor versions of Apache

• How to upgrade between minor versions of PHP