An object representing a stack trace

Changes for 2.05 - 2024-01-08

• Added explicit boolean overloading for trace objects. Without this, Perl will use the object's string overloading and then check the truthiness of the returned string, which is a lot of extra work. This can produce significant slowdowns in some cases, as seen in https://github.com/plack/Plack/pull/697. Requested by Tatsuhiko Miyagawa. GH #23.

CGI Interface for Fast CGI

Changes for 2.17 - 2023-11-13

• [INTERNALS
• replace use vars with our (GH #23, thanks to mauke)