There have been periodic attempts to revamp the design of Wikipedia's main page. In 2003, 2004, and 2006, there were successful main page redesign proposals.
Since 2006, there have been no successful proposals to significantly redesign the main page. However, it is always possible to request feedback from other editors on proposed changes, usually through discussion or requests for comment at Talk:Main Page, Wikipedia:Village pump (proposals) or Wikipedia:Village pump (idea lab). You can test changes in your user sandbox or another subpage.
Changes to content used in the main page, such as to the list of sister projects, are not listed. All archives linked display the current content; for archives of the content on particular days, see Wikipedia:Main Page history. TFA, OTD, ITN, DYK and POTD were added in 2004, and TFL was added in 2011. Some content may or may not be displayed depending on the day of the week.
This table does not list all of the changes that have been made and may be incomplete. Some changes, such as styling improvements, do not result in obvious or noticeable differences.
This list does not include all failed proposals, but many proposals by individual users are linked from these pages.