In the new year with a new ATS! True, there is not always time or desire to understand the intricacies of the transition between versions, collecting information from different sources. In this article, we have collected all the information you need to easily and quickly upgrade to 3CX v16 Update 4 from older versions.
There are many reasons to upgrade - all the features introduced in v16 can be found in . Here we note the most important improvements noticeable to ordinary users - new , ΠΈ .
Before upgrading - check the license
First of all, keep in mind that upgrading to the latest version of 3CX requires a license with an annual subscription or a perpetual license with an active update subscription. Without active your new system just won't activate. You can check the current status of the subscription in the section Options > License. You can also check eligibility for updates in the 3CX User Portal.
Please note that the correct subscription information in the PBX interface is only available from v15.5 Update 6 and higher.
If the subscription is expired
If you have a perpetual license, you need to find out if you are on a grace period during which you can renew your subscription. To do this, contact the 3CX partner that serves you (or the selected partner in ), or write directly to . By the way, you can renew your subscription to updates at any time, and not only when it has already expired. Moreover, you can get a 10% discount when buying updates for 3 years and 15% when buying for 5 years (we are talking about a subscription to updates for perpetual licenses).
If it turns out that the grace period has already expired, you can exchange your perpetual license for a license with an annual subscription for free. After that, you get a year of free use of the converted license, starting from the moment of exchange. In a year you just annual license for the following year.
The exchange is made in your user portal in the section Buy > Trade-in (Buy > Exchange.
Please note that when you exchange, you do not receive a new key, just your existing key becomes an annual one. There is no need to change anything in the system! The only action: after receiving an e-mail confirming the exchange, go to the 3CX interface and in the section Options > License click the Update license information button (but this will only work in 3CX v15.5 and later). If you have an older version installed, see below.
Upgrading from v15.X to v15.5 SP6
You must update your v16.X (and older) system to v15 SP15.5 before you can upgrade to v6. Only in this case is the correct transfer of the PBX configuration from the backup copy guaranteed. The easiest way to update is by following . However, if you have an even older version of 3CX, you will have to go through by installing them sequentially.
Be sure to make backups at every stage of the update!
Update from v15.5 SP6 to v16.X
It is important to note here that the process for updating 3CX under Windows and Linux is slightly different due to the architecture of these operating systems.
Windows
Unfortunately, 3CX v15.5 SP6 cannot be "directly" upgraded to v16, as can be done on Linux. You will have to make a backup copy of the PBX and restore it during the installation of the v16 distribution.
In the 3CX interface, go to the Backup section, click +Backup, specify the backup name and options.
Wait for the e-mail notification of the PBX administrator that the backup is completed, and then download the backup file.
Please note - you can use the created backup copy when installing the PBX both on Windows and Linux - the backup file is used for both OS without any problems!
After backing up, uninstall 3CX, and start installation. On the first screen of the Configuration Wizard, specify the backup file, and then proceed with the installation by .
Linux
Updating 3CX "in place", i.e. immediately over an existing installation is only available if the PBX is installed on Debian 9 Stretch (Debian 8 and 10 are not supported in v16). If you do not see the availability of updates in the 3CX interface, check the Linux version in the SSH terminal (command sudo lsb_release -a).
Debian 9
Here the update is very easy to install. In the 3CX interface, go to the section Updates and install all available updates. Be sure to wait for the e-mail about the completion of the update. After that, go back to Updates and install all available updates again - etc. until there are no notifications.
Debian 8
3CX v16 is not compatible with Debian 8, which was running v15.X. Therefore, you will have to backup the configuration and deploy a new installation from the ISO image .
Please note - you can migrate from a local installation to a cloud PBX using your backup and the 3CX cloud installation wizard .
Installing 3CX on various cloud platforms is given .
Source: habr.com