Strange .ser file in kolmafia data folder

[Ethelred]

Today I found a strange file named username_queue.ser in my kolmafia data folder. Does anyone know anything about such files? Should I be concerned?

 

[Bale]

It's a feature, not a security breach. KoLmafia now keeps track of the combat and noncombat queues. This is the data for that.

 

[Ethelred]

It's a feature, not a security breach. KoLmafia now keeps track of the combat and noncombat queues. This is the data for that.

Thank you. I hadn't noticed these files before, but closer inspection shows one for each multi and even one from a couple of months ago when I piloted the clan sewer bait. What? Me? Slow?