This document contains information about high level changes between Link Checker releases. Version 4.81 - 2011-10-16 - Work around some related problems (#12720, rt.cpan.org#54361). - Eliminate some warnings (emitted by code, not from results). Version 4.8 - 2011-04-02 - Avoid some robot delays by improving the order in which links are checked. - Avoid some unnecessary HEAD requests in recursive mode. - Clarify output wrt. links that have already been checked. - Make connection cache size configurable, and increase the default to 2. - Move JavaScript to an external file. - Check applet and object archive links. Version 4.7 - 2011-03-17 - Support for IRI. - Support for more HTML5 links. - Decode query string parameters as UTF-8. - Decode command line arguments according to locale. - New dependencies: Encode-Locale (command line mode only). - Updated dependencies: libwww-perl >= 5.833, URI >= 1.53. Version 4.6 - 2010-05-01 - Support for checking links in CSS. - Results UI improvements, added "progress bar". - Support for larger variety of character and content encodings. - Support for HTTP responses with > 4kB header lines. - Additional output suppress options in command line mode. - Improved heuristics when passed non-absolute URLs. - Support for cookies (command line only for now). - More "false positive" failure avoidance efforts for "make test". - The set of forbidden protocols is now configurable. - New dependencies: CSS-DOM >= 0.09. - Updated dependencies: Perl >= 5.8. Version 4.5 - 2009-03-30 - Removed W3C trademarked icons from distribution tarball. - Avoid "false positive" failures from "make test" in certain setups. - Make quiet command line mode quieter. - Lowered default timeout to 30 seconds. Version 4.4 - 2009-02-12 - checking more elements and attributes, such as BLOCKQUOTE cite="", BODY background="", EMBED, etc - Changes in the UI to make it match other validators more closely - in HTML/cgi output, using javascript to show checklink status as it happens - added support for HTML5 links - softer wording for broken link results - Add non-robot developer mode - many bug fixes and code cleanup Version 4.3 - 2006-10-22 - Various minor improvements to result output, both in text and HTML modes. - Fix --quiet and checking multiple documents to match documentation. - Eliminate various warnings (emitted by code, not from results). - Documentation improvements. Version 4.2.1 - 2005-05-15 - Include documentation of the reorganized access keys. Version 4.2 - 2005-04-27 - Access key reorganization, making them less likely to conflict with browsers' "native" key bindings. - Redirects are now checked for private IP addresses too. Version 4.1 - 2004-11-24 - Added workarounds against browser timeouts in "summary only" mode. - Improved caching and reuse of fetched /robots.txt information. - Fixed a bug where a complete protocol response (including headers) was passed to the HTML parser, which caused unexpected behaviour. - Minor user interface and installation related improvements.