Board Thread:Questions and Answers/@comment-31281551-20170213155751/@comment-18172179-20170213164039

Rebirth is not a change in timeline or continuity. It's simply an effort to tell stories similar to the ones from New Earth. Granted, they brought classic versions of characters like Superman and Flash (Wally west) and the "how" they did it is questionable and creates confusion.

Unless you're absoultely reading the current comics, you shouldn't worry about these changes.