From 428915ba66895b31a7807138d5a2f561bf073783 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Fri, 16 Oct 2026 13:53:56 +0000
Subject: [PATCH 01/10] Bump the all-julia-packages group across 2 directories
 with 3 updates

Updates the requirements on LinearAlgebra, SparseArrays and Markdown to permit the latest version.

Updates `LinearAlgebra` to

Updates `SparseArrays` to

Updates `Markdown` to

---
updated-dependencies:
- dependency-name: LinearAlgebra
  dependency-version:
  dependency-type: direct:production
  dependency-group: all-julia-packages
- dependency-name: SparseArrays
  dependency-version:
  dependency-type: direct:production
  dependency-group: all-julia-packages
- dependency-name: Markdown
  dependency-version:
  dependency-type: direct:production
  dependency-group: all-julia-packages
...

Signed-off-by: dependabot[bot] <support@github.com>
---
 Project.toml      | 2 ++
 docs/Project.toml | 1 +
 2 files changed, 3 insertions(+)

diff --git a/Project.toml b/Project.toml
index 5ef139503..a01932ee9 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,7 +11,9 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 BenchmarkTools = "1.5"
 Compat = "4.15"
 FiniteDifferences = "0.12.32"
+LinearAlgebra = "1.10"
 OffsetArrays = "1.14"
+SparseArrays = "1.10"
 StaticArrays = "1.9.8"
 julia = "1.10"
 
diff --git a/docs/Project.toml b/docs/Project.toml
index d7a3da37f..c9742e288 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -11,6 +11,7 @@ ChainRulesCore = "1"
 Compat = "4"
 DocThemeIndigo = "0.1.3"
 Documenter = "1"
+Markdown = "<0.0.1, 1"
 Plots = "1.20"
 
 [sources]

From d23371de499d94dc4a5f5ffcbce55aa65e787807 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20M=C3=BCller-Widmann?=
 <devmotion@users.noreply.github.com>
Date: Tue, 20 Oct 2026 08:47:55 +0200
Subject: [PATCH 02/10] Use "1" for stdlibs

---
 Project.toml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Project.toml b/Project.toml
index a01932ee9..050608b1a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,9 +11,9 @@ SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 BenchmarkTools = "1.5"
 Compat = "4.15"
 FiniteDifferences = "0.12.32"
-LinearAlgebra = "1.10"
+LinearAlgebra = "1"
 OffsetArrays = "1.14"
-SparseArrays = "1.10"
+SparseArrays = "1"
 StaticArrays = "1.9.8"
 julia = "1.10"
 

From ecde0cf0c829a57115f7df3fcc4267130e30a00a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20M=C3=BCller-Widmann?=
 <devmotion@users.noreply.github.com>
Date: Tue, 20 Oct 2026 08:53:25 +0200
Subject: [PATCH 03/10] Only use "1" in docs env

---
 docs/Project.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/Project.toml b/docs/Project.toml
index c9742e288..606dd58e1 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -11,7 +11,7 @@ ChainRulesCore = "1"
 Compat = "4"
 DocThemeIndigo = "0.1.3"
 Documenter = "1"
-Markdown = "<0.0.1, 1"
+Markdown = "1"
 Plots = "1.20"
 
 [sources]

From 7a84fcf726d60c1460eca3366098b413e41e81a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20M=C3=BCller-Widmann?=
 <devmotion@users.noreply.github.com>
Date: Tue, 20 Oct 2026 08:54:08 +0200
Subject: [PATCH 04/10] Make docs env a workspace

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

diff --git a/Project.toml b/Project.toml
index 050608b1a..bba2d04d4 100644
--- a/Project.toml
+++ b/Project.toml
@@ -33,3 +33,6 @@ test = ["Test", "BenchmarkTools", "FiniteDifferences", "OffsetArrays", "SparseAr
 
 [weakdeps]
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
+
+[workspace]
+projects = ["docs"]

From c5d3fc8efe5b050db08683a9e6676765fabe5e09 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20M=C3=BCller-Widmann?=
 <devmotion@users.noreply.github.com>
Date: Tue, 20 Oct 2026 08:55:25 +0200
Subject: [PATCH 05/10] Simplify Julia package configuration in dependabot.yml

---
 .github/dependabot.yml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 4dae5f9d6..2bd27c77c 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -6,9 +6,7 @@ updates:
     schedule:
       interval: "weekly"
   - package-ecosystem: "julia"
-    directories:
-      - "/"
-      - "/docs"
+    directory: "/"
     schedule:
       interval: "weekly"
     groups:

From 88fcf9a5c49248fa11d08cccfbfc203ce78dd4b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20M=C3=BCller-Widmann?=
 <devmotion@users.noreply.github.com>
Date: Tue, 20 Oct 2026 08:57:18 +0200
Subject: [PATCH 06/10] Remove SparseArrays from dependencies

---
 Project.toml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Project.toml b/Project.toml
index bba2d04d4..5d1d1ef51 100644
--- a/Project.toml
+++ b/Project.toml
@@ -5,7 +5,6 @@ version = "1.26.2"
 [deps]
 Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
-SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [compat]
 BenchmarkTools = "1.5"

From 05905ddc12b623153aa9d3be93e92f7e16bae27f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20M=C3=BCller-Widmann?=
 <devmotion@users.noreply.github.com>
Date: Tue, 20 Oct 2026 09:01:07 +0200
Subject: [PATCH 07/10] Remove unused Compat imports

---
 src/ChainRulesCore.jl | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/ChainRulesCore.jl b/src/ChainRulesCore.jl
index 544b3d9c6..01f311f14 100644
--- a/src/ChainRulesCore.jl
+++ b/src/ChainRulesCore.jl
@@ -2,7 +2,6 @@ module ChainRulesCore
 using Base.Broadcast: broadcasted, Broadcasted, broadcastable, materialize, materialize!
 using Base.Meta
 using LinearAlgebra
-using Compat: hasfield, hasproperty, ismutabletype, Returns
 
 export frule, rrule  # core function
 # rule configurations

From f4d3641942b67703db2ad086ded77c2b9d6b7505 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20M=C3=BCller-Widmann?=
 <devmotion@users.noreply.github.com>
Date: Tue, 20 Oct 2026 09:01:41 +0200
Subject: [PATCH 08/10] Update version to 1.26.3 and remove Compat dependency

---
 Project.toml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/Project.toml b/Project.toml
index 5d1d1ef51..5d9fb9225 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,14 +1,12 @@
 name = "ChainRulesCore"
 uuid = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
-version = "1.26.2"
+version = "1.26.3"
 
 [deps]
-Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 
 [compat]
 BenchmarkTools = "1.5"
-Compat = "4.15"
 FiniteDifferences = "0.12.32"
 LinearAlgebra = "1"
 OffsetArrays = "1.14"

From 679405c46048206968987292204ae9f87f8fa3a6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20M=C3=BCller-Widmann?=
 <devmotion@users.noreply.github.com>
Date: Tue, 20 Oct 2026 09:02:32 +0200
Subject: [PATCH 09/10] Remove Compat from docs env

---
 docs/Project.toml | 2 --
 1 file changed, 2 deletions(-)

diff --git a/docs/Project.toml b/docs/Project.toml
index 606dd58e1..57db7065b 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -1,6 +1,5 @@
 [deps]
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
-Compat = "34da2185-b29b-5c13-b0c7-acf172513d20"
 DocThemeIndigo = "8bac0ac5-51bf-41f9-885e-2bf1ac2bec5f"
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 Markdown = "d6f4376e-aef5-505a-96c1-9c027394607a"
@@ -8,7 +7,6 @@ Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 
 [compat]
 ChainRulesCore = "1"
-Compat = "4"
 DocThemeIndigo = "0.1.3"
 Documenter = "1"
 Markdown = "1"

From 2d484e54c3469d3f3b0513db76c8e9e75575793c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20M=C3=BCller-Widmann?=
 <devmotion@users.noreply.github.com>
Date: Tue, 20 Oct 2026 09:09:01 +0200
Subject: [PATCH 10/10] Create test/Project.toml

---
 Project.toml      | 17 +----------------
 test/Project.toml | 21 +++++++++++++++++++++
 2 files changed, 22 insertions(+), 16 deletions(-)
 create mode 100644 test/Project.toml

diff --git a/Project.toml b/Project.toml
index 5d9fb9225..290ccca4c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -6,30 +6,15 @@ version = "1.26.3"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 
 [compat]
-BenchmarkTools = "1.5"
-FiniteDifferences = "0.12.32"
 LinearAlgebra = "1"
-OffsetArrays = "1.14"
 SparseArrays = "1"
-StaticArrays = "1.9.8"
 julia = "1.10"
 
 [extensions]
 ChainRulesCoreSparseArraysExt = "SparseArrays"
 
-[extras]
-BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
-FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
-OffsetArrays = "6fe1bfb0-de20-5000-8ca7-80f57d26f881"
-SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
-StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
-Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-
-[targets]
-test = ["Test", "BenchmarkTools", "FiniteDifferences", "OffsetArrays", "SparseArrays", "StaticArrays"]
-
 [weakdeps]
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
 [workspace]
-projects = ["docs"]
+projects = ["test", "docs"]
diff --git a/test/Project.toml b/test/Project.toml
new file mode 100644
index 000000000..77a84d6b8
--- /dev/null
+++ b/test/Project.toml
@@ -0,0 +1,21 @@
+[deps]
+BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
+ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
+FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
+LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+OffsetArrays = "6fe1bfb0-de20-5000-8ca7-80f57d26f881"
+SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
+StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[compat]
+BenchmarkTools = "1.5"
+ChainRulesCore = "1"
+FiniteDifferences = "0.12.32"
+LinearAlgebra = "1"
+OffsetArrays = "1.14"
+SparseArrays = "1"
+StaticArrays = "1.9.8"
+
+[sources]
+ChainRulesCore = { path = ".." }