Release 3.1.10 does not build with the error

MultiiPlot.cpp:226:15: error: ‘class QXYSeries’ has no member named ‘setDrawOrder’

The broken code is wrapped inside a check on qt > 6 10 0. However, when building against qt6-base 6.10.0 it does not build, because this function does not exist.

This was already fixed by removing said code in commit 385fd60, however the latest release does not contain this fix and therefore does not build.

Could I propose making a new release seeing as the current master does build? And possibly remove release 3.1.10 as it's broken when building against 6.10?