where are the instructions to upgrade

I found one link but it said bad gateway ?

Quote · 7 Feb 2019

Upgrade from what version?

You can't upgrade from 7.3.5 to 7.4 because there's no upgrade path. Please read the first post in this thread:

https://www.boonex.com/forums/topic/Dolphin-7-4-0-Beta.htm

Quote · 7 Feb 2019
 
 
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