SSR-1U Firmware Release Notes 20220218 - v2.2.0 - BugFix: Fixed relative path support in the shell for exFAT volumes. Now cd .. works and pwd provides correct results on exFAT. - BugFix: Fixed issue recognizing a single forward slash as a valid path in the shell. - BugFix: Shell command sz included specified path with the zmodem transmitted filename and should not. - BugFix: Fixed shell issue where bad boolean options weren't rejected as syntax errors. Also made the acceptable boolean words case insensitive. - BugFix: Fixed the shell time command to correctly set times using the AM/PM designator on the 12th hour. Previously, times entered as 12AM were registered as 12PM and vice versa. - BugFix: Fixed shell to prevent extra characters from being consumed when using backspace in the middle of a command line. Line editing using backspace now works correctly. - The shell current working directory is now preserved after volume remount operation (e.g., card removal/insertion or USB access) if possible. - Updated the non-inverted command sources to display with a leading '+' in config and status shell output for clarity. 20210330 - v2.1.3 dev1 - Bug Fix: Corrected a problem that caused tagged line timestamps to be occasionally inserted soon after a new file was opened. - Bug Fix: Corrected a rare problem in which the seconds of a timestamp could be incremented prior to the fractional seconds, resulting in a timestamp sequence with seconds like: 2.907, 3.999, 3.091 - Added pull-up to UART transmitters during setup. 20200113 - v2.1.0 - First released version.