WinRAR  4.10 Beta 4
# Improved detection of UTF-8 encoding in file names in ZIP archives. WinRAR attempts to recognize Unicode names, even when UTF-8 flag is not present in ZIP archive headers.
# Bugs fixed:
* If switch -t was set in RAR environment variable, WinRAR "View" command failed to open archived files
* ""Autodetect" string" option in "Define volume sizes" dialog did not work
* If "Split to volumes, size" in default compression profile was set to "Autodetect", "Delete" and "Add comment" commands refused to modify ZIP archives.