The SDMX Technical Working Group (TWG) submitted VTL (Validation and Transformation Language) version 1.1 for public review in October 2016. The original deadline for public review has been extended until 6 January 2017 in order to allow time for submitting more comments (at twg@sdmx.org).

Link to the draft VTL (Validation and Transformation Language) version 1.1