I had bookmarked dbfiddle as https://dbfiddle.uk/?rdbms=postgres_14, to immediately open a fiddle with the database engine of my choice preselected.
Since the [UI update](https://topanswers.xyz/fiddle?q=2098), this no longer works.
I've tweaked the new UI so existing bookmarks like this will now work.
An alternative would be to use an actual fiddle as a bookmark, like https://dbfiddle.uk/Ho4tsJ0s - but I understand it's conveneient not to have to change existing bookmarks. I've also added a 302 redirect for links like https://dbfiddle.uk/engine=postgres which will go to the default fiddle of the default version for the version (currently 14 for postgres but soon to be 15).