0.13 21 September 2017 Allow silence to be passed by environment variable. Add new maintainer. 0.12 4 April 2012 Change in the test-suite so that tests should also run ok on Windows with Strawberry Perl. 0.11 1 April 2012 Some code esthetics. Verified it runs under 5.14.2, threaded and unthreaded. 0.10 10 May 2011 Added "retry" functionality for often called cronjobs that may exceed their allotted wallclock time occasionally. 0.09 13 May 2009 Added "silent" option so that a script can indicate whether or not it wants to tell the world whether it saw a previous incarnation running. 0.08 25 March 2008 Given up after almost a week getting the test to complete without errors. Added two TODO sections: manual testing indicates that everything seems to work as it should, so I guess it must be some test-suite artefact causing problems. 20 March 2008 Added support for SKIP_SYS_RUNALONE environment variable to skip the functionality altogether. After a feature request by Rick Jansen. Made the code a little more adhering to PBP. 0.07 15 November 2006 Why did testing just go ok and wrong now? Argh, must be too late. Fix for warning and test error. 0.06 15 November 2006 Brought up to BPB standards. Made the error message if no DATA handle found, hopefully more understandable. 0.05 11 June 2006 Added caveat of scripts being edited. 0.04 11 July 2005 Some pod fixes. Added link to Sys::RunAlways. 0.03 10 June 2005 Oops. Still one more race condition to fix in test-suite. 0.02 10 June 2005 Hopefully fixed problem with race conditions in the test-suite. 0.01 9 June 2005 First public version of Sys/RunAlone.pm.