The rules that came with my recently acquired copy of Dixie: Bull Run are labeled as Version 2.0 with a copyright year of 1994. Additionally, each card has "2nd Edition" printed along the top edge.
The PDF rules for DIXIE available for download from Columbia Games website is labeled as Version 1.1, but with a copyright year of 2006. Additionally, these rules specifically state:
These rules supersede the rules for all three editions. Some rules herein are noted as only applying to a specific edition.
Is my assumption correct that v1.1 (2006) is the set of (unified) rules that should be used while playing Dixie: Bull Run (or any of the other games in this series)?