Further 'status' details of the various qt5 modules -

The kf5.15 kde patches are in separate trees for each module, because
most distros only built the necessary modules (and kde has a lot of
things for e.g. in-car commercial use which are not appropriate in
most linux distros, people using those probably need the paid-for
Qt).

For each module, clone it and change into the 5.15 branch:

git clone https://invent.kde.org/qt/qt/<MODULE> # gives current 6.N
cd <MODULE>
git checkout -t origin/5.15

Get the patches from kde:

git format-patch origin/5.15.2..origin/kde/5.15

When doing that the first time, some, or all the patches are
'not useful' because either they increase the version from 5.15.2
or they were already included in the 5.15.2 rleease.  For a record of
what I'm doing, I prefix each line of those with a '#'.  If therr

If you need to look at the current state of the files at kde, go to
https://invent.kde.org/qt/qt/

Current status of these patches:

Initial 2021-12-29 or earlier		2022-01-25
 (-kf5-1)				(-kf5-2)

qtbase was 262				now 294
qtdeclarative was 41			now 43
qtdoc was 15				still 15
qtgraphicaleffects was 2, not useful	(still 2)
qtimageformats was 3, not useful	(still 3)
qtlocation was 6			still 6
qtmultimedia was 3			still 3
qtnetworkauth was 2, not useful		(still 2)
qtquickcontrols2 was 8			now 10
qtquickcontrols was 3			still 3
qtscript was 4, not useful		(still 4)
qtsensors was 2, not useful		(still 2)
qtspeech was 2, not useful		(still 2)
qtsvg was 13				now 16
qttools was 17				still 17
qtwayland was 37			now 44
qtwebchannel was 2, not useful		now 5
qtx11extras was 1, not useful		(still 1)
qtxmlpatterns was 2, not useful		(still 2)