leafer
> I would like to update php and mysql
There is a script to update php, which should be updated for security reasons if you are using php apps.
Any isues with OS upgrade problems would be resolved later, if you don't upgrade php now then you may get hacked. The choice is yours as to which outcome is likely to be worse.
Personally I don't think a php upgrade will cause any future OS upgrade problems as the new OS is likely to have a newer version of php anyway. sme 7 has php-4.3.2-23
As for mysql there are also HOWTOs available, I 'm not aware of security issues with mysql so the "need" to upgrade is really related to wanting/needing newer features of mysql.
I have upgraded to v4.0.20 without trouble following the HOWTOs because we needed to run apps that required v4.x features.
Not sure if there will be problems at that level of upgrade eg 4.x, upon checking I notice that sme 7alpha still has mysql-3.23.58-16. Worst case I guess would be a downgrade to the original mysql, run the OS upgrade and then upgrade mysql as required.
If you don't really need to upgrade then don't, less chance of problems that way.