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2. Intel microcode - Wikipedia

   en.wikipedia.org/wiki/Intel_Microcode

   Final determination and validation of whether an update can be applied to a processor is performed during decryption via the processor. [18] Each microcode update is specific to a particular CPU revision, and is designed to be rejected by CPUs with a different stepping level. Microcode updates are encrypted to prevent tampering and to enable ...

3. Intel Upgrade Service - Wikipedia

   en.wikipedia.org/wiki/Intel_Upgrade_Service

   An example of an Intel Upgrade Card. The Intel Upgrade Service was a relatively short-lived and controversial program of Intel that allowed some low-end processors to have additional features unlocked by paying a fee and obtaining an activation code that was then entered in a software program, which ran on Windows 7.

4. Source upgrade - Wikipedia

   en.wikipedia.org/wiki/Source_upgrade

   In the jargon of computer programming, a source upgrade is a modification of a computer program's source code, which adds new features and options to it, improves performance and stability, or fixes bugs and errors from the previous version. There are two popular types of source upgrades, which are listed here:

5. Microcode - Wikipedia

   en.wikipedia.org/wiki/Microcode

   This approach provides a relatively straightforward method of ensuring software compatibility between different products within a processor family. Some hardware vendors, notably IBM and Lenovo, use the term microcode interchangeably with firmware. In this context, all code within a device is termed microcode, whether it is microcode or machine ...

6. Software Upgrade Protocol - Wikipedia

   en.wikipedia.org/wiki/Software_Upgrade_Protocol

   The Software Upgrade Protocol (or SUP) System is a set of programs developed by Carnegie Mellon University in the 1980s [1] (as was the Andrew File System).It provides for collections of files to be maintained in identical versions across a number of machines.

7. Transient execution CPU vulnerability - Wikipedia

   en.wikipedia.org/wiki/Transient_execution_CPU...

   [59] AMD released a microcode update to fix it. [60] In August 2023 a vulnerability in AMD's Zen 1, Zen 2, Zen 3, and Zen 4 microarchitectures called Inception [61] [62] was revealed and assigned CVE-2023-20569. According to AMD it is not practical but the company will release a microcode update for the affected products.