Building a well-behaved multi-threaded desktop application has been a hard task for many years, however it does not have to be that way anymore. The following sections explain the threading facilities exposed by the Griffon framework.

> Prior to version 0.9.2 Controller actions were called in the same thread that published the event; most of the times this thread would be the UI thread. From 0.9.2 and onwards Controller actions will be executed outside of the UI thread. This feature can be disabled altogether or in a per case basis as explained in section 8.1.1.