For all meetings in October (4th, 11th, 19th, and 26th), the Friday night Gneisenaustraße meeting will change its location to:
MEHRINGHOF
Gneisenaustraße 2A
10962 BERLIN
2nd Courtyard / Aufgang (Staircase) 3 / First Floor Left
See here for the location on Google Maps: https://goo.gl/maps/iwgxmZKhe4S2eXudA