This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 115c. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
2024-09-25
The description of incompatibilities with C in Annex C.7 [diff.iso] is based on C89, but there are a number of new features in C99 and C23 that should be covered.
Additional note (August, 2024)
The issue title and description were amended to cover C23 as well.