100.9/Qt versioning question

Question

I just saw in the Road ahead that 100.9 will be using Qt 5.15.  Is it still going to support Qt 5.12 being backwards compatible?

My deployment goes on a strict operating system environment, derived from Ubuntu long term service releases and the 20.04 LTS has only 5.12 Qt.  https://packages.ubuntu.com/search?suite=all&section=all&arch=any&keywords=qt5-default&searchon=names

Sorry for not asking this in the Slido feedback panel during the talk, my computer is being stubborn and not showing that panel.

JamesBallard1 · Answer

Hi Troy Foster‌

>Is it still going to support Qt 5.12 being backwards compatible?

No, unfortunately it will not be backwards compatible with Qt 5.12 LTS series. Are you unable to use Qt distributions from qt.io? A possible alternate solution would be to build Qt 5.15 on Ubuntu 20 from sources to get around this limitation.