There is a new 5.0 version available from the Fastspring website.
This release has
Improvements to legacy scenery which should now be nearly 100% accurate. All the minor issues with aes-lite trains and buses have been sorted.
Workaround for occasional water white flashes
Workaround to provide full screen tooltips.
It is now available to all fastspring customers.
For old flight sim store customers the upgrade is available via cloud shadows.
i will upload a revised cloud shadows version shortly which can patch installed FSS 3.4 systems (or the replacement 3.4 installer that I have provided on request) to version 5.