It’s a two step process to get from 7.10.x to 7.14.3
-
Download this, and install with the Upgrade Wizard, to upgrade to 7.13:
Download SuiteCRM-Upgrade-7.10.x-to-7.13.4.zip (SuiteCRM) -
Install it with the Upgrade Wizard:
Go to Admin
Admin Tools
Upgrade Wizard
Follow the instructions on the page. -
Download this, and install with the Upgrade Wizard, to get from 7.13 to 7.14.3:
https://suitecrm.com/download/141/suite714/563702/suitecrm-upgrade-7-13-x-to-7-14-3.zip -
Do step 2 (above) to install the upgrade to 7.14.3 (which you downloaded in step 3)…
Reference info here, the Installation Guide, Upgrading: