BME680 breakout - VCC at the chip?

Hi, quick question regarding the BME680 breakout - is the VCC at the BME680 1.8V or 3.3?
Previous replies from @gadgetoid on the BME680 suggest 1.8V.

For context:
I’m trying to use it with the BSEC algorithm and the AlexH code ( The default config using this library is for 3.3 volts VCC, 3 second updates, 4 days calibration cycle. Boschs application notes say that choosing 1.8V or 3.3V is important to compensate for self heating, so I just wanted to check!