Version Download 1478 File Size 135.08 KB File Count 1 Create Date 27 April 2016 Last Updated 17 June 2021 Download Description Differences between the 1v4 and 2015 Specifications The following white paper does do exactly that: document the changes between 1v4 and 2015 in clear and easily understandable language. Share this post Share on FacebookShare on Facebook Share on LinkedInShare on LinkedIn