I have an installation of Community 8.15 on Ubuntu that I need to update. I need straightforward instructions on how to get this installation up to the latest version. I found the information about doing a series of incremental updates (8.17.7 -> 9.5.10 -> 10.8.7 -> 11.3.4) but no succinct instructions on how to do this. No links, please!
Are you using an omnibus installation? Running the following command will output a lot of useful information about your environment that is relevant to your question.
The documentation on upgrades states that the incremental updates should not be avoided, as skipping major releases is very likely to break your instance. I reviewed this doc and it lays out a good upgrade path for you to follow, though it looks like it may be a version or two behind. Specifically, your upgrade path should look like this:
8.15 -> 8.17.8 -> 9.5.10 -> 10.8.7 -> 11.3.4
So if you are utilizing the omnibus installation, you would want to incrementally specify your desired release following the path above. Here’s an example:
sudo apt-get install gitlab-ce=8.17.7-ce.0