• --timeout can now use s=second,m=minute,h=hour,d=day.
• --dr is now an alias for --dry-run.
• --halt supports done in addition to success and fail.
• parset will set variables in parallel in Bash.
• Perl 5.6 on Irix is no longer supported.
• --rpl can now take arguments by adding '(regexp)' in the replacement string.
• env_parallel now supports /bin/sh, ash, dash.
• --tee will pipe all data to all jobs. Used with --pipe/--pipepart and :::. Small example: seq 3333 | parallel --pipe --tee --tag 'grep {} | wc -l' ::: {0..9}
• If --results {replstr} ends in /: save in dir. Otherwise save as file. Example: parallel --results {} echo {} ::: a b c

parallel sleep {}\; echo {} ::: 5 2 1 4 3

worked as exepted