This week, NVIDIA has announced that they are ending mainstream graphics driver support for Fermi-based GeForce GPUs. Effective as of this month (i.e. immediately), all Fermi products are being moved to legacy support status, meaning they will no longer receive Game Ready driver enhancements, performance optimizations, and bugfixes. Instead, they will only receive critical bugfixes through the end of the legacy support phase in January 2019.
While the announcement mentions ‘Fermi series GeForce GPUs,’ the actual support plan specifies that mainstream driver support is limited to Kepler, Maxwell, and Pascal GPUs. So presumably all Fermi products are affected.