First check out who's name is in the credits for developers now 
Bluefish 2.2.4 is mostly a minor bugfix release, but it carries many small improvements. It has various fixes for the tab-width on gtk 3.6, the blocksync feature, scrollwheel-zoom, language syntax detection and character encoding detection, toggle comment, split view, better ui language detection on OSX and Windows, and several more. The performance of Bluefish has been improved in a couple of ways, most notably the auto-completion popup speed. New features include more simple search options, paste special (to paste for example images from Libreoffice), control-tab to switch to the most recent document, save as copy, and pylint, cssmin, jsmin, csstidy and php_beautifier integration. Various language syntax definition files have also been improved. With this release the minimum required gtk version is bumped to 2.20.