0.08
    Fix and improve diagostics

0.09
    Add an is_string_nows() function (RT #14018)

0.10
    Better implementation of _common_prefix_length
    by Tassilo von Parseval

0.11
    Require a more recent Test::Builder::Tester,
    since tests fail with 1.03.

0.12
    Show longest common substring in diagnostics
    (Breno G. de Oliveira)

0.13
    Allow to display LCSS output in diagnostics

0.14
    Compatibility fix with perl 5.13.5

0.15
    Show line and column number in diagostics (Mark Fowler)