Fix Elixir 1.20 deprecation and refresh CI matrix#48
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Pull request overview
This PR updates the Mix project configuration to avoid the Elixir 1.20 deprecation of xref: [exclude: ...] by using the newer compiler option for undefined module warnings.
Changes:
- Replaces
xref: [exclude: [Ecto.Changeset]]withelixirc_options: [no_warn_undefined: [Ecto.Changeset]].
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- ubuntu-20.04 runner image was removed from GitHub Actions in April 2025 - Add Elixir 1.19 (latest stable) and move lint target to 1.19 + OTP 28 - Drop Elixir 1.12, 1.13, 1.14 (no longer in security support upstream) - Drop OTP < 24.3 since they are not provided on ubuntu-22.04/24.04
Align the supported Elixir version with what the CI matrix actually tests. Elixir < 1.15 is no longer in security support upstream and is not exercised by CI.
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I opened #49 as a follow-up draft PR on top of this branch. |
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Changes
xref: [exclude: ...]withelixirc_options: [no_warn_undefined: ...](deprecated in Elixir 1.20).ubuntu-20.04toubuntu-24.04.ref: https://github.com/elixir-lang/elixir/blob/v1.20/CHANGELOG.md