Most of the changes from 1.0 to 1.1 were released online for 1.0 owners to download. The publisher acted on feedback from fans and reviewers to make a few adjustments to the book and the rules, which are as follows:
A) Errata, rules changes and most of the Clarifications have been incorporated into the revised edition.
B) Changes to points costs etc. In general terms, gunships and special forces became cheaper in points, and some smaller weapons, upgrade costs and scenarios have been slightly modified.
C) Version 1.1 features a double page index, a new page detailing how to build a Battlegroup and a brand new, first person mini-story!
D) Text is now further from the spine away from the centre of the book to increase readability, and the blue 'Rules' margin colour was split into three distinct shades for Background, Rules and Scenarios.
Source: Hawk Wargames Website, abridged by contributor.