Yes, FHEM.
Hallo Robin, alles im Lot?

Under Tools...Board:....Boards Manager... click on "esp8266 by ESP8266 community".
In the left corner (last row) you will find a "Select Version"...

Didn't wait. Just testing updated Version...
Sensor is a BME280.
Up to now everything ok and working as expected.
Thanks for this nice Feature.

Update: Uptime over 1500 minutes, no Problems so far...

It seems ridiculous measuring pressure in centi-hPas. Is there any Progress in rounding values?
Maybe a short command like %value%#1 for rounding to 1 decimal?

Thanks a lot.
That hit the spot.

Seems that something in this pre-release went wrong...
Any ideas?
Forgot to mention: Arduino Software Version 1.6.5 with ESP8266 ver. 2.0.0