Additional Relevant Details The first use of the Tandem Device Updater will be for deployment of the latest t:slim® Insulin Pump software to in-warranty t:slim Pumps purchased before April 2015. This updated software began shipping on new t:slim Pumps as of April 2015 and includes a variety of product enhancements for convenience and flexibility. Future software improvements and enhancements will be implemented through the Tandem Device Updater as they are cleared for commercial distribution.