Going from openSUSE Leap 42.3 to Leap 15 is quite a big jump. OpenSUSE Leap 42.3 shipped with Linux 4.4 that is now using Linux 4.12 with Leap 15.0, KDE Plasma 5.8.7 to KDE Plasma 5.12.5, X.Org Server 1.18.3 to X.Org Server 1.19.6, Mesa 17.0.5 to Mesa 18.0.2, and the GCC 4.8.5 code compiler to GCC 7.3.1. On the Python side is also the move from Python 3.4.6 to Python 3.6.5 while Py2 support is from 2.7.13 to 2.7.15
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