version 0.004; 2017-08-12

  * document problem with signals under threads

  * no longer include a Makefile.PL in the distribution

  * in documentation, use four-column indentation for all verbatim
    material

  * in META.{yml,json}, point to public bug tracker

  * include META.json in distribution

  * convert .cvsignore to .gitignore

  * add MYMETA.json to .cvsignore

version 0.003; 2010-07-23

  * use simpler "parent" pragma in place of "base"

  * check for required Perl version at runtime

  * use full stricture in test suite

  * use full stricture in Build.PL

  * in Build.PL, explicitly declare configure-time requirements

  * remove bogus "exit 0" from Build.PL

  * add MYMETA.yml to .cvsignore

version 0.002; 2007-09-27

  * use "base" pragma to import Exporter behaviour

  * test POD syntax and coverage

  * build with Module::Build instead of ExtUtils::MakeMaker

  * complete dependency list

  * include signature in distribution

  * in documentation, separate "license" section from "copyright" section

version 0.001; 2004-10-18

  * minimal test suite

  * shorter one-line description in README and man page, to fit module
    list

  * BUGS entry in documentation, warning about the effects of asynchronous
    signal delivery

  * versioned dependencies in .pm

  * declare module dependencies in Makefile.PL

  * include Changes file

version 0.000; 2004-03-11

  * initial released version
