Win-acme: Older version build numbering confirmation

[poundy]

I'm embarking on the modernisation of the implementation I inherited. I can't find an actual list or explanation, but I think what I have is an install of 1.9.1.1 as my build number shows the following:
[INFO] Software version 1911.2.6726.40690 (RELEASE)

I am hoping to jump as few points along the renewal train but knowing where I'm starting from seems, well, somewhat important :)

[WouterTinus]

That would be 1.9.11.2, pretty good chance that upgrading will be easy

[poundy]

thank you - it appears I'm up and working with 2.1.5 now, and yes it was very pain-free !