PHP and MySQL are not automatically updated during the BitrixVA update to version 5.1.x and higher. They can be updated in manual mode via the virtual appliance menu item 1. Manage hosts in the pool - 8. Upgrade PHP and MySQL versions.
Note: Menu item 1. Manage hosts in the pool - 8. Upgrade PHP and MySQL versions appears only when updating BitrixVA from previous versions to version 5.1.x and higher.
Attention! To use update PHP to version 7.0, preliminary, it is necessary to update PHP version to 5.6 and MySQL to 5.5 via the menu item 1. Manage hosts in the pool - 8. Upgrade PHP and MySQL versions and later to update to PHP version 7.x via the same menu item.
After the item 8. Upgrade PHP and MySQL versions is selected, when background update task is in progress, and PHP and MySQL will be finally updated to their current version.
If you need to roll back from PHP 7.x to 5.6, it can be done by selecting the item 1. Rollback php to 5.6 version:
If you have updated BitrixVA/BitrixEnv to version 7.1 and higher, then you will have an option to update MySQL version to 5.7 Percona DB. It can be done via selection of item 2. Upgrade MySQL to 5.7 version:
Attention! Task execution may take a rather long time (up to 2-3 hours and more) depending on the task complexity, data volume used in such tasks, capacity and server load. You can check the currently executed tasks by using menu item 5. Background tasks in the pool > 1. View running tasks. If task completion log files are needed to be reviewed, they are located in the following directory