Revision tag

When someone writes something, like a book or an essay or a letter, they might want to make changes to it later. These changes can make the writing better and more clear. A revision tag is like a special label that shows which version of the writing you are reading. It's like the tag on the back of your shirt that tells you what size it is, but instead of size, it tells you which version of the writing it is. So then, if you want to read the newest version of the writing, you can look for the revision tag that says "final" or something like that. It's like a map that helps you find the right way to read the writing.