In June 2007, Saab signed a long term service agreement with the Austrian Air Force to provide logistics and technical support for their Saab 105Ö fleet for a further 10–15 years. Austria finally retired the Saab 105 on 31 December 2020. In December 2008, Saab received a SKr900 million ($115 million) contract to support extended operations of Sweden's 105 trainer fleet up to mid-2017. In September 2009, a SKr130 million ($18.8 million) contract to deliver a package of cockpit and system upgrades for the Sk 60 aircraft was signed. One goal of this modernisation was increased compatibility with the Saab JAS 39 Gripen, the primary combat aircraft of the Swedish Air Force.