Please update platform details for iPhone 8, Android 8 etc.

Currently, it looks like various platform details on the bug-tracker form are out-of-date.

For example, the highest iPhone model is 7 when it should be 8 or X, the highest iOS is only 10.2, the highest Android version is 7.1 which should be 8.1 etc.

It would help our bug reports to be more accurate if we could enter the correct details for newer phones.

Thanks.