I want to change my permalinks from /%year%/%monthnum%/%day%/%postname%/ to /%postname%/
but when I added the following to the .htaccess file, posts didn't redirect the way I thought they would:
RedirectMatch 301 /dddd/dd/dd/(.*) /$1
What do I need to put into my .htaccess file to make it work?
My site is http://SweatingTheBigStuff.com
I think everyone is missing the point here - I think @Daniel has changed his permalinks, and now wants to redirect old permalinks.
The problem is your RedirectMatch regex is only matching a literal 'd', not digits.
Personally I would use this instead;
RedirectMatch 301 ^/[0-9]{4}/[0-9]{2}/[0-9]{2}/(.+)$ /$1
However, @markratledge is right in saying that there are issues with using just the postname.