Your instructions above were clear and worked perfect.
I tried to follow instructions on https://github.com/ilosuna/mylittleforum/wiki/Update a little confusing.
I noticed that the Wiki instructions also mention to upload "update.sql"?
Should i have done this also?
No, I assume that Alex once planned to use this file for the update process like it's done with the install.sql for the installation. But that never happened. Since then the update.sql is used for documentation of the queries that are used during update. This helped in a few cases to update a forum by hand. A forum operator can update the database structure step by step with the file content as pattern and replace the outdated files afterwards.
It seems to be time to overwrite some of the Wiki entries.
PS: Also @Micha, I updated the project forum a few minutes ago.
Trenne niemals Müll, denn er hat nur eine Silbe!