As far as I know, the previous system didn't use F#. "written in C#" http://www.computerworlduk.com/news/open-source/3260727/london-stock-exchange-in-historic-

As far as I know, the previous system didn't use F#. "written in C#" http://www.computerworlduk.com/news/open-source/3260727/london-stock-exchange-in-historic-linux-go-live/# http://www.computerworlduk.com/news/open-source/3260727/lond...