The Windows app was updated today with these changes:
[Release 5.0.3]
Displaying 'display name' for username instead of 'login'
Displaying 'display name' for playlist owner instead of 'login'
Displaying Hi-Res logo based on streaming rights only
Added right-click browse link on the download page
Improved display of tracks, works and versions
Fixed: security vulnerability node.js
Fixed: changing of the track order of a playlist not available when deleting a track
Fixed: the link to the playlist does not work, in the track addition confirmation popin
Fixed: cache error when reading track sample
Fixed: crash when leaving application on Mac Os Mojave
Another fix for buffer issue when listening
Improved application performance
Upgraded all libraries used by the application
"Displaying Hi-Res logo based on streaming rights only" clears up a lot of confusion caused when an album is available for download in Hi-Res, but for streaming only in 16/44.1 or lower. Now in those cases we will see a warning above the Hi-Res logo: "Only available in download". This in itself is a bit confusing and could be worded better (as is available for streaming, just in a lower resolution), but this is still good progress.
I was hoping to see a big performance from the last few items, but no such luck: "Another fix for buffer issue when listening", "Improved application performance", and "Upgraded all libraries used by the application" did not significantly speed up the app, which is very resource-intensive. It performs well enough on my fastest computer, but on a slow PC the Tidal app is clearly much faster.
I have not experienced the problems described by
@Gww1 above, so look forward to more reports about this release from others.