https://www.fai.org/news/civl-plenary-2018-whats-hang-gliding?type=node&id=24481

We have agreed to decrease the mandatory delay in live tracking at
Category 1 events to leave it somewhat flexible for organizers and team leaders
to decide on at the start of the event. The maximum delay will now be set at 10
minutes, but team leaders can decide for less if they would like.

Also of concern to many pilots at the worlds in Brasilia was the decreased
safety associated with having so many pilots in Category 1 events. Pilots were
passionate about increasing safety by decreasing the maximum number of pilots
allowed. It was agreed by the committee and the Plenary to limit the maximum
number to any Category 1 event to 125. This rule will not apply to bids that
have already approved (the European championships in Macedonia next summer and
the worlds in Italy in 2019).

Finally, probably of interest to many national team pilots is a new rule to
require Category 1 organizers to provide leading-edge stickers of high contrast
colour to increase the visibility of new gliders with darker coloured leading
edges. Alternatively, pilots can use their own high-contrast coloured nose cones
if they prefer not to use leading-edge stickers, or if they already have sponsor
leading edge stickers and don’t want to obstruct those.