+0.57 2015-04-17 15:20 UTC
+ + Chg : The new environment variable to enable thread tests on older
+ perls is PERL_FORCE_TEST_THREADS. Note that this variable
+ should only be turned on by authors.
+ + Fix : Segfaults when the module is loaded by several threads (or
+ Windows emulated processes) ran in parallel.
+ + Fix : Segfaults when the module is loaded in a thread, which spawns
+ itself a new thread, and that child thread outlives its parent.
+ + Fix : Small memory leaks of structures required for thread safety.
+ + Fix : Update the Windows ActivePerl + gcc 3.4 workaround for
+ ExtUtils::MakeMaker 7.04. Thanks Christian Walde for reporting
+ and feedback on this issue.
+ + Tst : The global destruction test will now be exercised on any perl
+ that has DEBUGGING set.
+ + Tst : Optional capturing tests in t/17-ctl.t that were only run when
+ Capture::Tiny was present were converted to an IPC::Open3
+ based helper and will now be run everywhere.
+
+0.56 2015-03-11 15:15 UTC
+ + Fix : [RT #101410] : Install fails in blead
+ Even though the change that caused this error was reverted from
+ blead, lvalue uses of ERRSV have been removed from this module
+ so that there will be no breakage when this change is possibly
+ reintroduced in the following months.
+ Thanks Dave Rolsky for reporting.
+ + Tst : $ENV{$Config{ldlibpthname}} is now preserved on all platforms,
+ which will address failures of t/17-ctl.t with unusual
+ compilers (like icc) that link all their compiled objects to
+ their own libraries.
+ + Tst : The global destruction test is now only run on perl 5.13.4 and
+ higher, and only if either Perl::Destruct::Level is installed
+ or PERL_DESTRUCT_LEVEL is set and the perl is a debugging perl.
+ This will solve rare crashes of t/15-self.t on perl 5.13.3 and
+ older.
+
+0.55 2014-10-20 23:45 UTC
+ + Fix : [RT #99319] : t/18-opinfo.t: test failure due to change in
+ perl 5 blead
+ The new METHOP op class added in perl 5.21.5 is now supported.
+ Thanks James E Keenan for reporting.
+