Got this news from the global MIUI forum. Although it's only available via fastboot. When will you guys make the xiaomi.eu version? I really don't like the China DEV rom because it has no Gapps and has a lot of chinese bloatware.
Source: http://en.miui.com/thread-752075-1-1.html
Lineage OS 14.1 is already official for Mi 4c and TS has their own 14.1 as well. Both works well with Google Assistant as long as you use at least opengapps nano package.
