The project relies on a "Fixed" timeline that attempts to solve long-standing continuity errors. For example, it places flashbacks from X-Men Origins: Wolverine
You can often find updates and community discussion regarding this project on platforms like the X-Men subreddit. chronological xmen project v3 pack 10 fixed extra quality
Look for the release notes from the original editor (credited as "FireStarEdit" on major fan-editing databases). The "Fixed Extra Quality" pack always includes a .nfo file with a verification hash. Pack 10 (Fixed