It hasn't changed....the f-35 is a low observable platform and is also an all aspect VLO plane that has exceeded it's 'stealth' KPP
In house 'stealth' platforms are called LO, it's in the public domain things gets confused by those that aren't familiar with the terms and how they can be applied.
I remember there was public confusion a few years ago, but was clarified
expanding on my reference to the f-22 being a LO platform
https://www.google.com.au/search?q=l...ient=firefox-a