On its website Nvidia has announced a knowledgebase bulletin in which it mentions it will end support for Fermi-based GPUs, these now will get legacy status. Next to that, and we've already mentioned this before, 32-bit drivers will cease to exist.

Fermi GPUs have been used in a wide variety of Geforce Mobile and desktop products. E.g. 400 (M) up-to even and 800M series. The more recognizable ones are the GTX 480, 550 up to the 580 and 590. Only critical updates will be released this year (security fixes for example), starting January 2019 the support will be halted. 

Support Plan for Fermi series GeForce GPUs

Answer ID 4654 - Updated 04/06/2018 11:16 AM

Support Plan for Fermi series GeForce GPUs

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Effective April 2018, Game Ready Driver upgrades, including performance enhancements, new features, and bug fixes, will be available only on Kepler, Maxwell, and Pascal series GPUs.  Critical security updates will be available on Fermi series GPUs until January 2019.  A complete list of Fermi series GeForce GPUs can be found here. Support plan for 32-bit and 64-BIT operating systems

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NVIDIA is making the following updates to our operating system support effective April 2018:

• Drivers: Game Ready Driver upgrades, including performance enhancements, new features, and bug fixes, will be available only on 64-bit operating systems. Critical security updates will be provided for 32-bit operating systems until January 2019.
  
  This includes the following operating systems:
       Microsoft Windows 7
       Microsoft Windows 8/8.1
       Microsoft Windows 10
       Linux
       FreeBSD
• GeForce Experience: Software upgrades with new features, security updates, and bug fixes will be available only on Windows 64-bit operating systems.  Existing features and services such as optimal game settings will continue to work on Windows 32-bit operating systems.

GeForce GTX 480 (Fermi)