Older WALA code had the logic to read the status file with highest sequence number. So VMSnapshotLinux extension would rename all other seq# files with _status suffix. But current WALA code reads the status of the currently executing sequence number. Renaming the status files are not needed. Guest agent has logic only to clear .status files not the ones with _status suffix. This means, older files can pile up in the VM as they don't get cleaned up.
Older WALA code had the logic to read the status file with highest sequence number. So VMSnapshotLinux extension would rename all other seq# files with _status suffix. But current WALA code reads the status of the currently executing sequence number. Renaming the status files are not needed. Guest agent has logic only to clear .status files not the ones with _status suffix. This means, older files can pile up in the VM as they don't get cleaned up.