Dragon is telling false information. Repeating shots has never been disallowed. I also believe you are not obliged to use TestStuff in BnG anymore and the girder usage restrictions still apply like they used to.
It's quite hard to pinpoint the exact rule changes, but the first post in
this topic is probably the most reliable source of information. To sum up, all that's changed is:
- In BnG, teleport is now infinite (although it's been played like that a long time before the official change) and shotgun is available (likewise, this introduction is essentially a formality). No other changes, although I'd say you are allowed to play with /ts if your opponent agrees.
- In TTRR, there are 5 worms per team.
- In shopper, AFR has been abolished. There's also a new scheme with slightly modified crate probabilities.