[12] Notable projects that use the MIT License include the X Window System, Ruby on Rails, Node.js, Lua, jQuery, .NET, Angular, and React.

The ACSL is not OSI-approved, nor does it qualify as a free software license as defined by the FSF, since it limits the permissions granted to individuals and organizations that do not operate under capitalist structures, like non-profits and cooperatives.

[3] The X Consortium was dissolved late in 1996, and its assets transferred to The Open Group,[24] which released X11R6 initially under the same license.

[27][28] The original BSD license also includes a clause requiring all advertising of the software to display a notice crediting its authors.

This "advertising clause" (since disavowed by UC Berkeley[29]) is present in the modified MIT License used by XFree86.

Both the BSD and the MIT licenses were drafted before the patentability of software was generally recognized under US law.

Of specific relevance to US jurisdictions, the MIT license uses the terms "sell" and "use" that are also used in defining the rights of a patent holder in Title 35 of the United States Code section 154.

One of the originators of the MIT license, computer scientist Jerry Saltzer, has published his recollections of its early development, along with documentary evidence.