Adding featured images aka thumbnails to my WordPress theme turned out to be a lot of work. Getting them to appear in my RSS feed in a valid manner was probably the worst, but what is going to take the longest time is retroactively adding featured images to all my old posts…

I knew exactly what I wanted. I wanted thumbnails with a proper enclosure in my RSS 2.0 feeds. Other blogs have this, why doesn’t mine? I enabled featured images in my theme, I got them to appear on my blog’s homepage, in the archives, even in the posts themselves if I wanted. I followed tutorials, I installed plugins, I consulted support forums. Still no thumbnails in my RSS feeds…