From fb146c68f83f189843ac852191c3344f517371a7 Mon Sep 17 00:00:00 2001
From: CompatHelper Julia <compathelper_noreply@julialang.org>
Date: Wed, 22 Apr 2026 00:39:53 +0000
Subject: [PATCH 1/6] CompatHelper: bump compat for DiffEqBase to 7, (keep
 existing compat)

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

diff --git a/Project.toml b/Project.toml
index 7ba060632..126cbf305 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,8 +1,8 @@
 name = "ControlSystems"
 uuid = "a6e380b2-a6ca-5380-bf3e-84a91bcd477e"
+version = "1.15.2"
 authors = ["Dept. Automatic Control, Lund University"]
 repo = "https://github.com/JuliaControl/ControlSystems.jl.git"
-version = "1.15.2"
 
 [deps]
 ControlSystemsBase = "aaaaaaaa-a6ca-5380-bf3e-84a91bcd477e"
@@ -23,7 +23,7 @@ StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 Aqua = "0.5"
 ControlSystemsBase = "1.3"
 DelayDiffEq = "5.31"
-DiffEqBase = "6"
+DiffEqBase = "6, 7"
 DiffEqCallbacks = "2.16, 3, 4"
 ForwardDiff = "0.10, 1"
 OrdinaryDiffEq = "6.60"

From 82b8d5a6329af27cc3d4f073f1a61aa45baa7d38 Mon Sep 17 00:00:00 2001
From: Fredrik Bagge Carlson <baggepinnen@gmail.com>
Date: Thu, 23 Apr 2026 14:01:21 +0200
Subject: [PATCH 2/6] Update Project.toml

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

diff --git a/Project.toml b/Project.toml
index 126cbf305..66d842915 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "ControlSystems"
 uuid = "a6e380b2-a6ca-5380-bf3e-84a91bcd477e"
-version = "1.15.2"
+version = "1.15.3"
 authors = ["Dept. Automatic Control, Lund University"]
 repo = "https://github.com/JuliaControl/ControlSystems.jl.git"
 

From 4fa46acdbaa459d404b0225abca51826d812a71d Mon Sep 17 00:00:00 2001
From: Fredrik Bagge Carlson <baggepinnen@gmail.com>
Date: Fri, 24 Apr 2026 07:58:18 +0200
Subject: [PATCH 3/6] Update Project.toml

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

diff --git a/Project.toml b/Project.toml
index 66d842915..30fa1603c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -26,7 +26,7 @@ DelayDiffEq = "5.31"
 DiffEqBase = "6, 7"
 DiffEqCallbacks = "2.16, 3, 4"
 ForwardDiff = "0.10, 1"
-OrdinaryDiffEq = "6.60"
+OrdinaryDiffEq = "6.60, 7"
 RecipesBase = "1"
 Reexport = "1"
 StaticArrays = "1"

From 1a6a5ee9bdcd8a0fbd5f305c0ccd1b35f2abba50 Mon Sep 17 00:00:00 2001
From: Fredrik Bagge Carlson <baggepinnen@gmail.com>
Date: Mon, 27 Apr 2026 08:45:05 +0200
Subject: [PATCH 4/6] Update Project.toml

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

diff --git a/Project.toml b/Project.toml
index 30fa1603c..aaf634636 100644
--- a/Project.toml
+++ b/Project.toml
@@ -22,7 +22,7 @@ StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 [compat]
 Aqua = "0.5"
 ControlSystemsBase = "1.3"
-DelayDiffEq = "5.31"
+DelayDiffEq = "5.31, 6"
 DiffEqBase = "6, 7"
 DiffEqCallbacks = "2.16, 3, 4"
 ForwardDiff = "0.10, 1"

From 8345b59bcd028535aaf33e3138b31e0e543e201d Mon Sep 17 00:00:00 2001
From: Fredrik Bagge Carlson <baggepinnen@gmail.com>
Date: Mon, 27 Apr 2026 10:00:37 +0200
Subject: [PATCH 5/6] Import BS3 from OrdinaryDiffEqLowOrderRK

OrdinaryDiffEq 7 no longer re-exports BS3; it now lives in the
OrdinaryDiffEqLowOrderRK sub-package. Add it as an explicit
dependency and import BS3 from there.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---
 Project.toml    | 2 ++
 src/timeresp.jl | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Project.toml b/Project.toml
index aaf634636..f97ce057a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -12,6 +12,7 @@ DiffEqCallbacks = "459566f4-90b8-5000-8ac3-15dfb0a30def"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 OrdinaryDiffEq = "1dea7af3-3e70-54e6-95c3-0bf5283fa5ed"
+OrdinaryDiffEqLowOrderRK = "1344f307-1e59-4825-a18e-ace9aa3fa4c6"
 Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 RecipesBase = "3cdcf5f2-1ef4-517c-9805-6587b60abb01"
@@ -27,6 +28,7 @@ DiffEqBase = "6, 7"
 DiffEqCallbacks = "2.16, 3, 4"
 ForwardDiff = "0.10, 1"
 OrdinaryDiffEq = "6.60, 7"
+OrdinaryDiffEqLowOrderRK = "1"
 RecipesBase = "1"
 Reexport = "1"
 StaticArrays = "1"
diff --git a/src/timeresp.jl b/src/timeresp.jl
index d6a7cbf91..6b3c61966 100644
--- a/src/timeresp.jl
+++ b/src/timeresp.jl
@@ -1,4 +1,5 @@
-import OrdinaryDiffEq: ODEProblem, Tsit5, solve, BS3
+import OrdinaryDiffEq: ODEProblem, Tsit5, solve
+import OrdinaryDiffEqLowOrderRK: BS3
 import ControlSystemsBase: lsim, step, impulse, HammersteinWienerSystem, DelayLtiSystem, PartitionedStateSpace, SimResult
 import DelayDiffEq: MethodOfSteps
 # Function for DifferentialEquations lsim

From 0724f3a6a64ede0b5e7f03b655631dcc48a76d20 Mon Sep 17 00:00:00 2001
From: Fredrik Bagge Carlson <baggepinnen@gmail.com>
Date: Mon, 27 Apr 2026 11:03:24 +0200
Subject: [PATCH 6/6] Update Project.toml

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

diff --git a/Project.toml b/Project.toml
index f97ce057a..0c0e4aaa3 100644
--- a/Project.toml
+++ b/Project.toml
@@ -28,7 +28,7 @@ DiffEqBase = "6, 7"
 DiffEqCallbacks = "2.16, 3, 4"
 ForwardDiff = "0.10, 1"
 OrdinaryDiffEq = "6.60, 7"
-OrdinaryDiffEqLowOrderRK = "1"
+OrdinaryDiffEqLowOrderRK = "1, 2"
 RecipesBase = "1"
 Reexport = "1"
 StaticArrays = "1"