CS Odessa today announced the release of ConceptDraw MINDMAP 4.5, a free update of its popular mind mapping and brainstorming software. Version 4.5 offers user interface improvements in the Mac OS X version, Spell Checker, improved Export to PDF and a number of other improvements and fixes according to user’s feedback. “We always strive to improve our program according to our customer’s needs and maintain our existing users paying attention to their feedback,” said Yury Varbanets, the product manager of ConceptDraw MINDMAP. ConceptDraw MINDMAP is available in Professional and Personal editions — the Professional edition sells for US$249, while the Personal edition is priced at $119.