I wanted to update a test installation I have. There I have two update possibilities, 3.xx and 5.xx. both are marked as unstable.

I started to update the 3.xx version, and first I got a notice, that the comfort update must be updated, which I did.
Now when I wanted to update the 3.xx version, I got a failure message HTTP 500 error, the page is not functioning.

I have to back with the "back button" and the page seems to function, but I can't update anymore. I reveice all the time the error message, when I try to update.

I deleted the cache etc. Now I don't no what to do .

Don't use ComfortUpdate , use manual update

And PLEASE : different issue need different topic !