Question: Updating Zig will break CI for previous year?

[Avokadoen]

Zig has changed substantially since last year's 0.7.1

If the docker pulls zig-nightly it will probably break previous year CI, but I am guessing the CI does not run previous year?

[Arxcis]

CI does not pull nightly today. It pulls the specific version from last year, so all solutions from last year still work ref:

https://github.com/Arxcis/adventofcode2020/blob/main/Dockerfile#L14

If you don't believe me (or the badge), run the workflow manually here -> https://github.com/Arxcis/adventofcode2020/actions/workflows/2020.yaml

Will updating zig break last year?

Yeah probably 😅

Here is a radical idea❗

Create one Docker image per year:

• Allow different versions each year.
• Avoid breaking previous years when upgrading this year.

Alternative

• Just go back and fix ye olde code (but who wants to do that really realistically?)
• In 2025, do you want to go back to fix the 2020 code? Probably not