8.1 Marking Milestones with Tags
As your repository progresses, it is going to have milestones: it will be deployed, new versions will be created, and so on.
Tags give you a convenient way to mark such milestones so you can come back to them later. Tags act like bookmarks in your repository. You can use them to jump back to the point in the repository that you tagged. You can tag any commit in Git for any purpose you can think of.
The most common use of tags is to mark when the code in your project is released. That allows you to go back to the code you released if you need to fix or change something later.
Tags in Git are read-only, unlike the tags you might be familiar with if you’re coming from Subversion. This means you can’t make ...