Hi,
> 1. Should I still have to update xDebug, Language files, and the Aestan Tray menu
> or were these included in the Wampserver update?
Aestan Tray Menu and language files are included in the Wampserver update.
xDebug is not included.
> 2. Should I go ahead and add the latest 64-bit versions of PhpMyAdmin, Adminer, PhpSysInfo, Apache, PHP,
> and MySQL? (I am not using MariaDB.)
There is no obligation to install the last versions Apache, PHP and MySQL. Wampserver is a development server to allow you to develop and/or to make evolve locally real sites by using, at the beginning, the same versions as at the host
1.
In the end (except for Apache see below) you install the versions you need, when you need them.
It is almost impossible to get a cross tabulation of supported versions between Apache and PHP as an Apache module, that's why I make sure that the latest Apache version for Wampserver can support, as an Apache module, older versions of PHP although for older versions of PHP (5.4, 5.5) I would rather advise to use the FCGI mode
The versions of Applications like PhpMyAdmin will depend on the PHP version used as an Apache module although here too you can switch PhpMyAdmin (it's an alias) to FCGI mode.
1 You can even have several VirtualHosts for the same local site, each with a different PHP version, which is very convenient to switch a site from an old PHP version to a recent one.
Thanks for your contribution.
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Documentation Apache -
Documentation PHP -
Documentation MySQL -
Wampserver install files & addons