From 3119baec58e73e054630eff33cef451cb6498713 Mon Sep 17 00:00:00 2001
From: Arno Strouwen <arno.strouwen@telenet.be>
Date: Tue, 26 Dec 2023 15:37:06 +0100
Subject: [PATCH] Downgrade CI

---
 .github/workflows/Downgrade.yml | 29 +++++++++++++++++++++++++++++
 Project.toml                    | 16 ++++++++--------
 2 files changed, 37 insertions(+), 8 deletions(-)
 create mode 100644 .github/workflows/Downgrade.yml

diff --git a/.github/workflows/Downgrade.yml b/.github/workflows/Downgrade.yml
new file mode 100644
index 00000000..01ff8cad
--- /dev/null
+++ b/.github/workflows/Downgrade.yml
@@ -0,0 +1,29 @@
+name: Downgrade
+on:
+  pull_request:
+    branches:
+      - master
+    paths-ignore:
+      - 'docs/**'
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - 'docs/**'
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        version: ['1']
+    steps:
+      - uses: actions/checkout@v4
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.version }}
+      - uses: cjdoris/julia-downgrade-compat-action@v1
+#        if: ${{ matrix.version == '1.6' }}
+        with:
+          skip: Pkg,TOML
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1
\ No newline at end of file
diff --git a/Project.toml b/Project.toml
index f8d759f3..4c9672ad 100644
--- a/Project.toml
+++ b/Project.toml
@@ -23,18 +23,18 @@ DataInterpolationsSymbolicsExt = "Symbolics"
 
 [compat]
 Aqua = "0.8"
-ChainRulesCore = "0.9.44, 0.10, 1"
-FiniteDifferences = "0.12"
-ForwardDiff = "0.10"
-LinearAlgebra = "1.6"
-Optim = "0.19, 0.20, 0.21, 0.22, 1.0"
+ChainRulesCore = "1"
+FiniteDifferences = "0.12.31"
+ForwardDiff = "0.10.13"
+LinearAlgebra = "1.9"
+Optim = "1.6"
 PrettyTables = "2"
 QuadGK = "2.9.1"
-RecipesBase = "0.8, 1.0"
-Reexport = "0.2, 1.0"
+RecipesBase = "1.1"
+Reexport = "1"
 RegularizationTools = "0.6"
 StableRNGs = "1"
-Symbolics = "4, 5.1"
+Symbolics = "4"
 Test = "1"
 julia = "1.9"