I recently took over operation of a forum running 3.7.2. The original person who installed it has disappeared and I have no means of recovering or discovering the license information (I'm assuming). It's become abundantly clear that I should buy a license, not least because I would like to apply the latest security patches and get a couple nagging technical issues solved.
Question: If I buy a full license, will I have access to "upgrade" files to take me to 3.8.5, or am I forced to initiate a full installation to v4?
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