the video recording time limit remains 29:59
If going according to that spec sheet, then there is nothing else changing whatsoever. There's no mention of focus stacking, no mention of false colour, no mention of LBC, PSB, bike, plane & train tracking. And it being "only" 1.8.1 makes them less likely to be included as well. Damn that's frustrating. Buuuut:
I agree. Hopefully that's neither the last update, nor this spec sheet being complete. Just look at what they've done to the German 100-500 site. You don't need to be able to read German to know that there's something off here... (e. g. too short of specs, extender not compatible???)
Das Canon RF 100-500mm bietet Klarheit und außergewöhnliche Teleeigenschaften. UD-Linsen und ASC-Vergütung sorgen für exzellenten Kontrast und enorme Schärfe.
www.canon.de
EDIT: The Canon-Europe-Site has exactly the same (mis-)information
Canon RF 100-500mm delivers clarity and an exceptional telephoto performance. Achieve excellent contrast and sharpness thanks to UD lens elements and ASC coatings.
www.canon-europe.com