@Pavel 2015=2017=2019. 2019 replaces 2017, just like 2017 replaced 2015.
You can see the version number is still 14.xx.xx.xxx.
When microsoft actually adds a new, standalone version of VC++(for example 2020 or 2021 or whatever), they'll probably change the version number to 20.xx.xxx or 21.xx.xxx or whatever. This number usually corresponds to the last 2 digits of the year when the version is released(at least that's MY understanding).
Usually there's no sequence, but for OCD sake - first old SxS addon, then 2013d, then 2019.