Have made the move to QGIS 3 but am having trouble locating the AutoTrace/Trace tool.
I have enabled advanced digitizing tools where the magnet button sat in QGIS 2.18 but it is not there in QGIS 3. I also can't find any AutoTrace plugins in the QGIS 3 plugin manager.

View > Toolbars. Perhaps this is a bug...? – Joseph Mar 29 '18 at 09:24Viewmenu only.) – Kazuhito Mar 29 '18 at 10:41