Notes on Upgrading to Eleventy 3.0

My blog is now generated by Eleventy 3.0, which was released last month. The upgrade process took me a few hours split over two evenings and I took a few notes. This probably isn’t an interesting write up for hardly anyone – but if you have any of the same 11ty concerns I do, you may find a solution in here. I started out by following the instructions in the excellent Upgrade Helper docs . When I…