Wonder what he means by redesign. Is the sensor larger or just not compatible directly without code change.
He said there's different "communication" issues with the new stuff. I am the last person on earth that should pick his brain about this so I'm somewhat paraphrasing it. That's where you "in the know folks" come into play.
FYI the specs for the SHT35 are 2% humidity across the
entire spectrum and the temp at 0.2C, spectrum unknown, but certainly greater.