Upgraded my phone to CyanogenMod 14 (Android 7.1). Dirty flashed over CM13, everything went smoothly. Using Tingle to apply the signature spoofing patch for microG now, instead of Xposed.
If youβre going to do the same: the first boot after an upgrade β including a Tingle patch β takes some time, donβt panic. Also, Wi-Fi only started connecting correctly after a reboot.