1) Example Attribute/Skill Pairings (page 3), Wand bonuses. (Splitting the Dark Arts bonus into a separate Jinxes and Hexes bonus), Skill specialisation, and change of wording on “Beyond First Year” where “academic” becomes “additional” (page 13).
2) That may be down to the compression? The latest version is uncompressed.
3) You may have to ask J.K. Rowling.
5) For spells like Apparition and Portus (see Spell Sheet).
6) Unlikely, but the sort of thing that game masters might want to approach in their own way.
7. The download is now updated and should match the 2nd edition rules.
8. If I ever get time, but not in the near future. If others want to create suitable resources of that sort, I’m happy to point players in their direction.
Thanks for you questions.