All you need to do is upload b2evolution 4.0.5 files, and configure DB credentials in /conf/basic_config.php to point to your old database. Then run the installer and select UPDATE

Make sure you have a backup, there might be errors during update. [u]Don't run the installer twice[/u] if you get any errors, post them here!

Hi,

Thanks for the response. I tried what you said and got the following error:

Additional information about this error:

MySQL error!

Table 'benett_pelleas_bvlt1.T_usersettings' doesn't exist(Errno=1146)

Your query:

DELETE

FROM T_usersettings

WHERE uset_name = "plugins_disp_avail"

This is a bug. I'm checking b2evo updater...

Ok, I fixed several bugs in the upgrade script
Please use this version of /install/_functions_evoupgrade.php, it's only for b2evolution 4.0.5 !!!
http://pastebin.com/7JNh8Pbe

You will need to drop the database, restore the original one from backup and start upgrade process from the beginning.

That did the trick, thanks a LOT for the quick help!!

No problem. Thanks to you we fixed several bugs in upgrade functions :)