As a software developer, I often read technical documentation. I might be biased due to the high usage of Stack Overflow and internal tools like Confluence which are full of timestamps (almost any piece of information has a creation date).
However, every now and then I stumble across technical articles (example) which do not provide any timestamp information. I typically view source and search for a hidden (technical) tag that might contain some timestamp, but this is not someone using a Web site normally would normally do.
I am curious if from a UX perspective technical content creation/modification timestamps are a must or at least a good practice.