Updating D-based apps without recompiling it

[Adam D. Ruppe via Digitalmars-d-learn]

On Wednesday, 23 March 2016 at 12:21:33 UTC, Ozan wrote:
> Has someone experience with handling upgrading/updating D-Apps 
> on the fly?

The way I always did it was to simply have old and new running 
side-by-side in the transition.

So, without stopping the old version, compile the new one and 
start it. Tell the web server to start using the new one for all 
new connections without breaking any existing connections.

Then when all existing connections are finished, you can stop the 
old one and remove it.