On December 2, 2014, FileMaker announced that as of September 25, 2015, FileMaker 11 products will no longer be available for direct sales and support including technical support, replacement media, downgrade media, and downgrade license keys.
Self-help will be available via the FileMaker Knowledge Base.
FileMaker 11 products:
FileMaker Pro 11
FileMaker Pro 11 Advanced
FileMaker Server 11
FileMaker Server 11 Advanced
FileMaker Pro 11 and FileMaker Pro 11 Advanced are qualifying products for single license upgrades to FileMaker Pro 13 or FileMaker Pro 13 Advanced until September 25, 2015.
Note: FileMaker Go 11 was discontinued on September 30, 2013