After some reports from users with Ebay-bought BME280 not working and after some investigation I found out that some units have different I2C-addresses. Changing the address would require fiddling with library and using Arduino IDE so I thought it could be made easier to users.
Making stuff automatic
Some BMP280 and BMP280 boards have different I2C-addresses and Adafruit library defines one of them. Now, if the board you have has different address it does not work.
Some boards have pads to solder for changing the address-bit but not all so I fixed it in firmware. Function now is that if the sensor is not found in one of the addresses another address is tried before looking for next type of sensor.
Best part is that user does not need to do anything, everything is fully automatic.
I have version 1.4, should I update to 1.5?
If you have your sensor up and running then no. No new features are added, only the sensor initialization is reworked.