Another great trick is just increasing version numbers in your blog posts! People look for content relevant to their version number, so you should just make sure you have copies of your content with all the version numbers people might search for!

And with version numbers, you are not limited to dates in the past, you can even write articles about the future!

Here's a brilliant example: https://gorails.com/setup/ubuntu/20.04

How to set up Rails on Ubuntu 20.04, which will be released in April next year. You can already read the guide today! Some of the links might not work yet, because obviously you can't download Ubuntu 20.04 yet, but once it's released, those guys are bound to be the first ones who had a guide out!