I worked at a place a long time ago upgrading legacy software from the 80s. I helped them update their build process from file shares, copy/pasting and manual building to Git, Jenkins and automated builds/tests/packaging. I know it's not automated code, but it certainly saved us a lot of time with about 50 assemblies. I'm sure some companies were ahead of the curve when it comes to stuff like that, but this was a really small company. Modern CI/CD software is great and saved us lots of time.