What is the correct procedure to upgrade from V14 to V15 of 3CX?

The procedure to upgrade from V14 to V15 of 3CX entails a series of careful steps to ensure that all necessary data and settings are preserved and can be transitioned smoothly. The correct answer involves making a complete backup of the V14 installation first. This step is crucial as it ensures that all configuration settings, call logs, and other essential data are secure and can be restored in the new version.

Following the backup, uninstalling V14 is an important next step as it prepares the system for a clean installation of V15. A clean environment helps to avoid any potential conflicts that could occur from remnants of the old version lingering in the system. After V14 is completely uninstalled, V15 can then be installed. Finally, restoring the backup created from the V14 instance allows for a seamless transition, bringing over all the settings and data to the newer version.

This thorough procedure minimizes the risks associated with upgrading, such as data loss or system misconfiguration, ensuring that users experience a more stable and functional version of the software.

While other options might suggest simpler or quicker methods, they do not adequately safeguard against potential issues that can arise during an upgrade process, such as missing configurations or data integrity problems.