 The releases of CSL are 0.8 (March 21, 2009), 0.8.1 (February 1, 2010), 1.0 (March 22, 2010), and 1.0.1 (September 3, 2012).CSL 1.0 was a backward-incompatible release, but styles in the 0.8.1 format can be automatically updated to the CSL 1.0 format.On its release in 2006, Zotero became the first application to adopt CSL.