=== Configuration changes in 1.23 ===
* When $wgJobRunRate is higher that zero, jobs are now executed via an
asynchronous HTTP request to a MediaWiki entry point. This may require
- increasing the number of server worker threads.
+ increasing the number of server worker threads. $wgRunJobsAsync has been
+ added to disable this feature if needed, falling back to executing the job
+ on the same process but making the execution synchronously.
* $wgDebugLogGroups values may be set to an associative array with a
'destination' key specifying the log destination. The array may also contain
a 'sample' key with a positive integer value N indicating that the log group