Revision history for Perl extension Parallel::Prefork.
0.18
        - fix the broken $pm->wait_all_children without timeout (by shogo82148)
0.17
        - fix the broken $pm->wait_all_children with timeout
0.16
        - $pm->wait_all_children takes an optional argument specifying a timeout value (in seconds) (by karupanerura)
0.15
        - fix bug in Parallel::Prefork::SpareWorkers that did not spawn proceses up to the given maximum number
        - fix crash in Parallel::Prefork::SpareWorkers when it receives a signal while reading the status file (by Perlover)
0.14
        - fix doc issues
0.13
        - repackage 0.12 (tar xf fails with 0.12 on some platforms)
0.12
        - support for pre/post fork callbacks
0.11
        - suppress warning in perl < 5.10
0.10
        - support new style: $pm->start(sub { ... }) (thanks to confound)
        - collect zombie processes without any delay when spawn_interval is nonzero
        - do not sleep spawn_interval seconds when a worker process exits non-zero and if err_repawn_interval < spawn_interval
0.09
        - support for slow startup (with the new spawn_interval parameter) and slow shutdown (by passing arrayrefs as values of the trap_signals hashref)
0.08
        - fix test (compatibility with older versions of Test::More, timing was too severe)
0.07
        - fix compilation error on perl 5.10.0
0.06
        - add Parallel::Prefork::SpareWorkers
0.05 - Wed Sep 23 20:25:00 JST 2009
        - do not die on fork failure
0.04 - Mon Sep 29 13:04:00 JST 2008
        - add on_child_reap callback (by lestrrat)
0.03 - Fri Apr 11 14:30:00 JST 2008
        - declare dependency against Class::Accessor::Fast
0.02 - Mon Apr 07 00:00:00 JST 2008
        - only delay respawning a new worker process if prev. exited abnormally
0.01 - Fri Apr 04 00:00:00 JST 2008
        - initial release