From d8a0a96b3cd58d7586411e5f25707909252f07e3 Mon Sep 17 00:00:00 2001
From: Chengyu HAN <cyhan.dev@outlook.com>
Date: Fri, 6 Feb 2026 16:31:02 +0800
Subject: [PATCH 1/3] dep: Remove JET

---
 Project.toml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Project.toml b/Project.toml
index 18b70268..5bcf9171 100644
--- a/Project.toml
+++ b/Project.toml
@@ -21,7 +21,7 @@ ChainRulesCore = "0.9.44, 0.10, 1"
 ChainRulesTestUtils = "0.6.8, 0.7, 1"
 ExplicitImports = "1.13.2"
 IrrationalConstants = "0.1, 0.2"
-JET = "0.9, 0.10"
+
 LogExpFunctions = "0.3.2"
 OpenLibm_jll = "0.7, 0.8"
 OpenSpecFun_jll = "0.5"
@@ -34,9 +34,9 @@ Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
 ChainRulesTestUtils = "cdddcdb0-9152-4a09-a978-84456f9df70a"
 ExplicitImports = "7d51a73a-1435-4ff3-83d9-f097790105c7"
-JET = "c3a54625-cd67-489e-a8e7-0a5a0ff4e31b"
+
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Aqua", "ChainRulesCore", "ChainRulesTestUtils", "ExplicitImports", "JET", "Random", "Test"]
+test = ["Aqua", "ChainRulesCore", "ChainRulesTestUtils", "ExplicitImports", "Random", "Test"]

From bd601783f1ce08ec66f50c77518586c3f2bdb421 Mon Sep 17 00:00:00 2001
From: Chengyu HAN <cyhan.dev@outlook.com>
Date: Fri, 6 Feb 2026 16:31:11 +0800
Subject: [PATCH 2/3] test: move JET into `jet.jl`

---
 test/jet.jl         | 17 +++++++++++++++++
 test/logabsgamma.jl |  8 --------
 test/qa.jl          |  8 --------
 test/runtests.jl    |  1 -
 4 files changed, 17 insertions(+), 17 deletions(-)
 create mode 100644 test/jet.jl

diff --git a/test/jet.jl b/test/jet.jl
new file mode 100644
index 00000000..64ab6f0b
--- /dev/null
+++ b/test/jet.jl
@@ -0,0 +1,17 @@
+using JET: JET
+
+@testset "package" begin
+    # Check that there are no undefined global references and undefined field accesses
+    JET.test_package(SpecialFunctions; target_defined_modules = true, mode = :typo)
+
+    # Analyze methods based on their declared signature
+    JET.report_package(SpecialFunctions; target_defined_modules = true)
+end
+
+@testset "logabsgamma" begin
+    # issue #502
+    JET.@test_call logabsgamma(1.0)
+    JET.@test_opt logabsgamma(1.0)
+    JET.@test_call logabsgamma(1f0)
+    JET.@test_opt logabsgamma(1f0)
+end
diff --git a/test/logabsgamma.jl b/test/logabsgamma.jl
index c6ac837f..344b890b 100644
--- a/test/logabsgamma.jl
+++ b/test/logabsgamma.jl
@@ -156,11 +156,3 @@ x = 8.000001f0
 # (i.e. prevfloat(8.000001f0) == 8.0f0)
 # We still check appropriate behavior at 8.0f0
 @test ulp(8.0f0) < 0.4006594736129046
-
-@testset "JET" begin
-    # issue #502
-    JET.@test_call logabsgamma(1.0)
-    JET.@test_opt logabsgamma(1.0)
-    JET.@test_call logabsgamma(1f0)
-    JET.@test_opt logabsgamma(1f0)
-end
diff --git a/test/qa.jl b/test/qa.jl
index e2d34159..7fbe2277 100644
--- a/test/qa.jl
+++ b/test/qa.jl
@@ -53,11 +53,3 @@ end
     # No self-qualified accesses
     @test ExplicitImports.check_no_self_qualified_accesses(SpecialFunctions) === nothing
 end
-
-@testset "JET" begin
-    # Check that there are no undefined global references and undefined field accesses
-    JET.test_package(SpecialFunctions; target_defined_modules = true, mode = :typo)
-
-    # Analyze methods based on their declared signature
-    JET.report_package(SpecialFunctions; target_defined_modules = true)
-end
diff --git a/test/runtests.jl b/test/runtests.jl
index 87b51d4c..38ec9064 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -9,7 +9,6 @@ using Base.MathConstants: γ
 
 using Aqua: Aqua
 using ExplicitImports: ExplicitImports
-using JET: JET
 
 using SpecialFunctions: AmosException, f64
 

From 639edf0319da30b0ab4799a258cec8633c6a002a Mon Sep 17 00:00:00 2001
From: Chengyu HAN <cyhan.dev@outlook.com>
Date: Fri, 6 Feb 2026 16:31:34 +0800
Subject: [PATCH 3/3] ci: add JET CI

---
 .github/workflows/jet.yml | 44 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 .github/workflows/jet.yml

diff --git a/.github/workflows/jet.yml b/.github/workflows/jet.yml
new file mode 100644
index 00000000..44db0f5c
--- /dev/null
+++ b/.github/workflows/jet.yml
@@ -0,0 +1,44 @@
+name: JET
+
+on:
+  push:
+    branches: [master]
+    tags: ["*"]
+  pull_request:
+
+jobs:
+  jet:
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - 'min'
+          - 'lts'
+          - '1'
+          # Latest JET support version
+          # https://github.com/aviatesk/JET.jl/blob/master/Project.toml
+          - '1.12'  
+        os:
+          - ubuntu-latest
+          - macOS-latest
+          - windows-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: julia-actions/setup-julia@v2
+        with:
+          version: ${{ matrix.version }}
+      - uses: julia-actions/cache@v2
+      - uses: julia-actions/julia-buildpkg@v1
+      - name: Install JET
+        shell: julia --project --color=yes {0}
+        run: |
+          using Pkg
+          Pkg.add("JET")
+      - name: Run JET
+        shell: julia --project --color=yes {0}
+        run: |
+          using JET, Test
+          using SpecialFunctions
+          include("test/jet.jl")