How to upgrade MySql?

Hi, We have a Web server with Apache 1.3.22+MySql 3.23.44+php 4.0.6 on Solaris 8. Now we want to upgrade MySql to latest version. Should I re-compile both Apache, MySql, and PHP or just re-compile MySql? The question is how to upgrade MySql on Apache server with multi-application? TIA

FW: How to upgrade MySql?

Hi, We have a Web server with Apache 1.3.22+MySql 3.23.44+php 4.0.6 on Solaris 8. Now we want to upgrade MySql to latest version. Should I re-compile both Apache, MySql, and PHP or just re-compile MySql? The question is how to upgrade MySql on Apache server with multi-application?