The 1st change is about freeze glitches which happen on the Xbox version only. It is mainly about very huge scores which happened 2 times, once on Out of Control Tower/3 (927mil) by Drew22werD and on Surf Shocker/21 (309mil) by RedderBattle639.
Last week there happened another big freeze score, Drew22werD got 536 million on Down Hill Demolition/1. He achieved over 25 million damage (25,534,960 x 21). Those damages almost seem to be too high, there is a theory about that the counter glitched too and showed some glitched numbers but note that this is just a theory.
The main reason these scores are taken out of the rankings is, that there is just too little knowledge about those big freeze scores. So from now on under the chart for a zone with a freeze score a note is/will be added, thanks to a advice from Vieraldo.
If you want to have more info about freeze scores or discuss about the remove of those scores, please visit the "freeze" topic in the forum.
The 2nd change is about a score in the best non-glitch vids list. Brainkiller007s 45 million score on Sandstorm Shredder/7 was removed cause a tiny "flat position" glitch happened there. When that score was achieved, it was not known, trucks can also glitch in a "not folded" position. BoneCrasherMania1s 44 million score was added instead of the 45 million vid from Brainkiller007.