Microsoft today announced that it:
is supporting the addition of Microsoft's exFAT technology to the Linux kernel.
Microsoft has published the exFAT file system specification on its Windows Dev Center site.
While the code remains under copyright, Microsoft also stated that the exFAT code incorporated into the Linux kernel will be available under GPLv2.
We also support the eventual inclusion of a Linux kernel with exFAT support in a future revision of the Open Invention Network's Linux System Definition, where, once accepted, the code will benefit from the defensive patent commitments of OIN's 3040+ members and licensees.
It is noteworthy that there is already a free and open source exFAT driver available for FreeBSD and multiple Linux distributions, but it is not an official part of the Linux kernel due to the patent encumbrance of exFAT.
Also at TechCrunch and VentureBeat.
(Score: 2, Informative) by Anonymous Coward on Thursday August 29 2019, @05:10AM (1 child)
A quick check on Wikipedia says that exFAT was introduced in 2006, so it has at most 2 years of patent protection in the United States. Sounds like they are just buying some goodwill and maybe longevity for a product nearing the end of its usefulness.
(Score: 1, Informative) by Anonymous Coward on Thursday August 29 2019, @02:14PM
I don't understand how you come to this 2 year number. Current United States patent law is that patents last 20 years from the first filing date.
In principle patents can be filed up to 1 year after public disclosure of an invention, so the presumed date where all relevant exfat patents should be expired (at least for the original implementation) is ca. 2027.