ITIL is a best practice framework that has been drawn from both public and private sectors internationally. It describes how IT resources should be organised to deliver business value documenting the processes, functions and roles of IT Service Management (ITSM).
ITIL Version 2 (V2) has undergone a major makeover, which is Version 3 (V3). ITIL Version 3 (V3) represents an important evolutionary step in its life. The makeover has transformed the guide from providing a great service, to being the most innovative and the best in its class. At the same time, the interface between old and new approaches is seamless, so that users do not have to reinvent the wheel during uptake. V3 allows users to build on the successes of V2 but take IT service management even further.
The new edition, ITIL 2011 edition, is an update version of the ITIL version 3 (V3), the first significant update since 2007, and addresses a broad range of issues raised in the Change Control Log and resolves errors and inconsistencies in the text and diagrams across the whole Suite. ITIL 2011 is an update, not a new version.