This page aims to cover bits of specifications that have been deprecated in newer versions but which might still be relevant for one reason or another; however, it does not cover technologies that have been deprecated in favour of others. Care was taken to ensure that the "old" information is in its latest form in all the documents referenced.
Intel SDM
Item
Where to find
Comments
Intel486 test registers (TR3..TR7)
Pentium MMX SDM
Cache testing is performed via MSRs on newer CPUs.
UEFI specification
Item
Where to find
Comments
Device I/O Protocol
EFI 1.10 specification
Replaced by PCI Root Bridge I/O protocols.
UGA I/O + UGA Draw Protocol
EFI 1.10 specification
Replaced by EFI Graphics Output Protocol.
USB Host Controller Protocol
EFI 1.10 specification
Replaced by USB2 Host Controller Protocol.
SCSI Passthru Protocol
EFI 1.10 specification
Replaced by Extended SCSI Passthru Protocol.
Driver Configuration Protocol
UEFI 2.0 specification (including versions with errata applied)
Removed in favour of a different mechanism.
SMBIOS specification
Item
Where to find
Comments
Plug-and-Play function interface
SMBIOS 2.6.1 specification
Replaced by a table-based method.
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