This post will note the most recent changes to the contribution rules and contribution acceptance system.

Jan 21, 2010 - Rules change - Removed the restriction on submission of changed disc IDs. Submission no longer requires other changes in the contribution.
Jan 22, 2010 - System Change - The acceptance system now removes 'Credited As' entries from cast/crew which reflect only a case change.
June 5, 2012 - Rules Change - Changes for version 3.8, including color and dimension. Clarification to writing credit.