From the full press release: This is big news that I overlooked when the announcement was made. This will give me peace of mind when buying from them in the future. I think Sigma is on a roll. The DP Merrills are generally well-received unlike the previous DP cameras, their lenses are performing like premium competitors at a drastically lower price, and they've been consistently adding features in their firmware updates to the Merrills and Sigma Photo Pro (e.g. Monochrome mode).