10
           
            
                
     
    
    My temporary solution to prevent data lost during upgrade.
newbb/include/plugin.php line 36~40
 // perform forum/topic synchronization on module update 
$customConfig["syncOnUpdate"] = true; 
 
// time for pending/deleted topics/posts, expired one will be removed automatically, in days; 0 or no cleanup 
$customConfig["pending_expire"] = 1;  
change the setting to :
 // perform forum/topic synchronization on module update 
$customConfig["syncOnUpdate"] = false; 
 
// time for pending/deleted topics/posts, expired one will be removed automatically, in days; 0 or no cleanup 
$customConfig["pending_expire"] = 0;  
After upgrade, also prevent to execute the synchronization in admin.
Quote:
kolsch wrote:
Upgrade from CBB 4 alpha with XOOPS 2.3.1 and Frameworks for 2.3+.
Upgrade process was smooth without error message.
But after upgrade forum topics and posts was lost.
Forum posts decrease form 40000+ to 20000+.
Upgrade again and forum posts decrease further from 20000+ to 2500+.
Have tried to restore db then repeat upgrade process with the same results. 
Back to CBB 4 alpha now.