It's a long story. There used to be an implementation of classbuilder 
which could load code atomically, but it never made it to Squeak.

Someone else had to tackle this problem before, and IIRC the solution was 
to minimize all windows before recompilation, and then the windows were 
restored. But anything which prevents redrawing them should work.

Levente

On Sat, 25 Apr 2015, Marcel Taeumel wrote:

> Yeah, I guess so. But why not? :)
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