I just installed 2.4 with the blog module (fresh download of both on July 5) and ran into some issues when I went to change the blog's entry date. When I select a date using the date picker, it shows up in dd/mm/yyyy format and fails validation (expects mm/dd/yyyy).
Has anyone found a way to fix or get around the main issue (wrong date format)? I think it might be minor for me at this point, since I shouldn't be backdating anymore entries, but it'd be nice to be able to use the date picker tool to select the date that I want and have it validate properly on the occasions that I would be selecting a new date. Also, it might help others who are also having trouble and the solutions in the other thread aren't working.