Upgrading from 12 to 15.5

[MikeyG.IT]

I am going to be upgrading a deployment from version 12 sp6 to version 15.5 latest sp. Do I just need to create a backup and then restore the backup to the new installation?

 

[MikeyG.IT]

Some of the information I have read has been a little confusing. Not sure if I need to install other versions, ex: v12.5 and v14 and restore the backup to those before I go to v15.5

 

[neville]

• Step 1: Take a backup of the current configuration.
• Step 2: Install v15.5 and activate the license key (the one that you are currently using).
• Step 3: If you want to migrate configuration data, follow the steps outlined in the manual. In short:
  • V11: download V12, V12.5 and V14 then migrate to each version using backup and restore.
  • V12: download V12.5 and V14 then migrate to each version using backup and restore.
  • V12.5: download V14 then migrate to it using backup and restore.
  • V14: Make a backup and then use it during installation of v15.5
  • V15: Keep updating from the management console until you have reached v15.5 SP5 (and SP6 when available)

 

[YiannisH_3CX]

Hello @MikeyG.IT

You will need to follow the upgrade path @neville posted to be able to successfully import your backup to V15.5. Please note that your licence will not activate on any of the previous versions but it doesn't need to. Once you get to the latest V15.5 version your licence should activate