Updates only "Wampmanager", does not add any Apache PHP, MySQL or MariaDB versions. It is a cumulative update. It is not necessary to apply the old updates 3.0.1 to 3.2.5 before applying 3.2.6. There will be no changes to your Apache, PHP, MySQL, MariaDB settings and versions used; your local sites and databases will not be affected. This update is necessary to install the latest Apache, PHP, MySQL or MariaDB addons.