Update version if already purchase an old version

[B_Brights]

Hi,
I would like to ask if i have the older version of jsreport(2.x) but now i want to upgrade to newest version so what should I do?
Thank you for you advise.

[jan_blaha]

Here is the migration guide for the technical part.
https://jsreport.net/learn/v3-migration-guide

In case you purchased jsreport subscription which is still active, you can simply update your app. In case you purchased a perpetual license, please contact us at sales@jsreport.net.