Migrate Downgrade.yml to SciML/.github central caller#128
Merged
ChrisRackauckas merged 1 commit intoJun 6, 2026
Conversation
Replace the bespoke raw julia-actions/julia-downgrade-compat@v2 workflow with the centralized reusable caller SciML/.github/.github/workflows/downgrade.yml@v1. - group: Core (preserved) - julia-version: "1.10" (LTS, preserved) - allow-reresolve: false (strict, matches the prior ALLOW_RERESOLVE: false) - mode defaults to deps (the prior alldeps matrix entry was never wired into the action step, so the effective mode was already deps) - skip defaults to Pkg,TOML (matches the prior skip) - secrets: inherit - pull_request/push triggers on main with paths-ignore docs/** preserved Downgrade suite run locally at the existing [compat] floors (deps-mode, Pkg.test(allow_reresolve=false), Julia 1.10): PASS (BaseModelica 238/238). No floor bumps were required. Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com> Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
Migrates the bespoke
Downgrade.yml(rawjulia-actions/julia-downgrade-compat@v2job) to the centralized reusable callerSciML/.github/.github/workflows/downgrade.yml@v1, matching the pattern already used byTests.ymlin this repo and by ~119 other SciML repos.What changed
uses: SciML/.github/.github/workflows/downgrade.yml@v1withsecrets: inherit.group: Corepreserved (sole matrix entry).julia-version: "1.10"preserved (LTS; Julia 1.10 support stays required).allow-reresolve: false— strict, matches the priorALLOW_RERESOLVE: false.modedefaults todeps. The prior workflow declared adowngrade_mode: ['alldeps']matrix variable but never referenced it in thejulia-downgrade-compat@v2step (the step only setskip: Pkg,TOML), so its effective mode was alreadydeps. The central caller's defaultdepsreproduces that exactly.skipdefaults toPkg,TOML(matches prior).pull_request/pushtriggers onmainwithpaths-ignore: docs/**preserved.Local verification (Julia 1.10, isolated depot)
Reproduced CI's strict downgrade exactly: pinned only the direct
[deps][compat]entries to their floors (CondaPkg=0.2.33, DiffEqBase=7.5, MLStyle=0.4.17, ModelingToolkit=11.24.0, ModelingToolkitBase=1.34.0, ParserCombinator=2, PythonCall=0.9.29), left[extras]test deps unpinned, then ranPkg.test(; allow_reresolve=false)withGROUP=Core.Resolution succeeded and 238/238 tests passed at the existing floors — no
[compat]floor bumps were required, so this PR touches onlyDowngrade.yml.🤖 Generated with Claude Code