SU 2019.2 released

[sketch3d.de]

@derek edison said:

I haven't seen the in-app check work since version 2017. 2018 still reports it's the current version.

th in-app check does work for point releases of the concerning major version only, not for new major releases. Which is helpful especially if maintenance lapsed and license data for a new major release is not available sothat upgrading would lead to a non-working version.