Qt-DAB-6.X is the development version of Qt-DAB. It seems fairly stable though.
Apart from some errors related to servicename identification and multiple scans, errors that are repaired in this version, the main visible changes are
(1) the inclusion of a selection between portaudio and Xmultimedia as "output driver".
For selection, the configuration widget has a selector.
(2) some services do not contain a "slide show", in which case a default label is shown. In the 6.X version, the single default label is replaced by a number of slides with (most of them) in the background showing a computer from my youth
(3) there were some problems with the identification of TII data, since in my environment there are two transmitters where the software seems unable to decide which has the strongest signal so I added a "block option", where the software selects on other criteria than strength of the correlation. Furthermore, the TII decoding is slightly adapted, such that it tries to identify TII data from more than a single transmitter. the configuration widget contains a "DX" selector, when enabled, Qt-DAB-6.X shows in a separate table all transmitters that are detected.
As usual, there is an AppImage and there are three Windows installers (one 64 bit, and 2 3 bit versions, the 32 bit versions support RTLSDR V4 resp RTLSDR V3)
A small - but irritating error - was removed. I was too enthousiastic in cleaning up the dx display, but with switching services there is no need to do so. Fixed
21-04: documentation uploaded and versions with (experimental) support for journaline