FatFs R0.14 was released at October 14, 2019. These are the verified problems about FatFs R0.14 and its workaround or patch.
1. November 10, 2019 -------------------------------------------------------------------------------------------------- Old floppy disks formatted with MS-DOS 2.x and 3.x cannot be mounted. This is because the boot sector lacks "FAT" string and 0xAA55 signature. To solve this problem, apply ff14_p1.diff to the ff.c. This problem was reported at a meeting.
2. March 29, 2020 -------------------------------------------------------------------------------------------------- A compiler warning apperes when enable string I/O functions with UTF-8. To fix this problem, apply ff14_p2.diff to the ff.c with patch 1 applied. This problem was reported via user forum.
3. April 5, 2020 -------------------------------------------------------------------------------------------------- A buffer overflow can occure in the f_mkfs funciton when FF_MIN_SS < FF_MAX_SS. The function description had said that the size of working buffer may be the sector size corresponds to the volume but the function always uses the buffer in FF_MAX_SS bytes. Workaround: Give work area in size of FF_MAX_SS bytes at least. This problem was reported via user forum.