phpBB 3.1 is not compatible with 3.0 and most of the previous files will need to be removed prior to upgrading to 3.1.
To upgrade, perform the following steps:
Backup all board files and the database.
Download the full package.
Unzip to your desktop and open the phpBB3 directory.
Remove (delete) the
config.phpfile, and the
/filesdirectories from the package.
In Administration Control Panel (ACP) > GENERAL > Board Configuration > Board settings
Default style: prosilver
Overide user style: Yes
If spambot countermeasures are enabled: Administration Control Panel (ACP) > GENERAL > Board Configuration > Spambot countermeasure if the installed plugin used is not GD image, GD 3D image, Simple image, Q&A, or reCaptcha, then change it to one of those.
If you have more than a few MODs or otherwise want to remove old entries from the database:
Download and uncompress the Support Toolkit
stkdirectory from Support Toolkit package to the root of your board installation.
In your browser go to http://www.example.com/yourforum/stk, login if necessary.
Using the menus navigate to ADMIN TOOLS > Database Cleaner and run that tool.
Via FTP or SSH delete everything from your board installation on the server EXCEPT for the
config.phpfile, and the
You can also, optionally, delete the
/store/modsdirectory, if it exists (it contains the MOD packages installed using AutoMOD).
Via FTP or SSH upload the remaining files and directories (from step iii above) to the root of your board installation on the server overwriting the existing files.
In your browser go to http://www.example.com/yourforum/instal ... update.php
Let that run to completion.
Via FTP or SSH delete the
/install/directory from the root of your board installation.
If you use languages other than the standard British English you will need to find new language packs, upload those to the board, and install those languages again: ACP > CUSTOMISE > Language Management > Language packs.
Only use a good FTP or SSH client, such as FileZilla, to transfer the files. (File transfer utilities provided in host control panels can cause problems.)
Time to install your new Premium Shiny Theme FLATBOOTS
Common problems while updating
https://www.phpbb.com/community/viewtop ... &t=2269196
This is quite lengthy process and it is suggested only if you already have experience with phpBB and an update process. Make sure you also have enough time as you cannot just interrupt it and resume it later. I am Available as usual to perform the update for you if you prefer to avoid headaches. I will be charging depending on the board size and update type, migrations etc. Contact me via PM or email for a quote.
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