Recent preliminary stable update

Hi there. I checked for updates in Synaptic and saw a slew of preliminary stable updates. It didn't occur to me that running a Trinity update inside of Trinity might be a bad idea. That is, until my desktop disappeared. I did a pstree check to see if the update had finished, which it had, probably because Synaptic was killed. Now there is no record of the updates in Synaptics history and the updates are no longer present - did it succeed? Just a heads up! P.S. should I do anything to try to recover the update history? Do I need to be worried? Regards, Philip Ashmore