From c673e9b3bff32c496f49dc9e275a642e0ff44197 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Wed, 11 Feb 2026 13:56:09 -0600
Subject: [PATCH 01/18] Changed handling of math slots to work with SDK 26.2.2
 approach of adding math-slots subdir to PKG_CONFIG_PATH

---
 make/setup-depends.mk | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/make/setup-depends.mk b/make/setup-depends.mk
index e856312f3..e94e08839 100644
--- a/make/setup-depends.mk
+++ b/make/setup-depends.mk
@@ -2,17 +2,12 @@ INTERNAL_DEPENDS_ON := $(addprefix mesa-,$(INTERNAL_DEPENDS_ON))
 
 include $(MAKE_DIR)/subdirs.mk
 
-PKG_CONFIG_FLAGS =
-
 ifneq ($(MESASDK_ROOT),)
   ifeq ($(WITH_CRLIBM),yes)
-    PKG_CONFIG_FLAGS += --define-variable=MATH_SLOT=crmath
-    MESASDK_MATH_SLOT = crmath
+    PKG_CONFIG_PATH := $(MESASDK_ROOT)/math-slots/crmath/lib/pkgconfig:$(PKG_CONFIG_PATH)
   else
-    PKG_CONFIG_FLAGS += --define-variable=MATH_SLOT=default
-    MESASDK_MATH_SLOT = default
+    PKG_CONFIG_PATH := $(MESASDK_ROOT)/math-slots/default/lib/pkgconfig:$(PKG_CONFIG_PATH)
   endif
-  export MESASDK_MATH_SLOT
 endif
 
 PKG_CONFIG_PATH := $(shell BUILD_DIR=$(BUILD_DIR_) $(MAKE_DIR)/gen-pkgconfig-path $(SUBDIRS)):$(PKG_CONFIG_PATH)
@@ -20,7 +15,7 @@ export PKG_CONFIG_PATH
 
 define pkg-config-inner
 ifneq ($(2),)
-  TMP_VAR := $$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) pkg-config $(PKG_CONFIG_FLAGS) $(1) $(2) || echo "failed")
+  TMP_VAR := $$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) pkg-config $(1) $(2) || echo "failed")
   ifeq ($$(TMP_VAR),failed)
     $$(warning PKG_CONFIG_PATH is $$(PKG_CONFIG_PATH))
     $$(error pkg-config failed to find some of $(2), check PKG_CONFIG_PATH is correct)

From ddf40d24e7c23e10a72d657f2a483fd03e3d8453 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Wed, 11 Feb 2026 13:57:00 -0600
Subject: [PATCH 02/18] Added blas to EXTERNAL_DEPENDS_ON

---
 gyre/Makefile | 2 +-
 mtx/Makefile  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gyre/Makefile b/gyre/Makefile
index fbec74fc8..4d513e8fc 100644
--- a/gyre/Makefile
+++ b/gyre/Makefile
@@ -8,7 +8,7 @@ ifeq ($(WITH_GYRE),yes)
 SRCS :=
 SRCS_CHECK := test/src/test_gyre.f90
 INTERNAL_DEPENDS_ON := forum const
-EXTERNAL_DEPENDS_ON := hdf5_fortran lapack95 lapack
+EXTERNAL_DEPENDS_ON := hdf5_fortran lapack95 lapack blas
 CHECK_RESULTS_GOLDEN := test/test_output
 CHECK_DIFF_PROG := ndiff -quiet -relerr 1.0e-6
 BINTYPE := lib
diff --git a/mtx/Makefile b/mtx/Makefile
index b6bf23a07..ec98001e6 100644
--- a/mtx/Makefile
+++ b/mtx/Makefile
@@ -16,7 +16,7 @@ SRCS_CHECK := test/src/test_mtx.f90 \
               test/src/test_block_tridiagonal.f90
 # TODO: Also contains test dependencies sadly, I should fix this at some point
 INTERNAL_DEPENDS_ON := const utils math
-EXTERNAL_DEPENDS_ON := lapack
+EXTERNAL_DEPENDS_ON := lapack blas
 BINTYPE := lib
 
 # Testing

From b3c972010341f9a4f166be2973bd0a4148573362 Mon Sep 17 00:00:00 2001
From: Vincent Vanlaer <vincent.vanlaer@kuleuven.be>
Date: Thu, 12 Feb 2026 17:07:54 +0100
Subject: [PATCH 03/18] mtx: fix undefined behaviour in `b` pivot swaps

The omp simd directive assumes that all loop iterations are independent.
This is not the case for swapping elements of a single row/column.
Hence, this causes UB.
---
 mtx/public/mtx_solve_routines.inc | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/mtx/public/mtx_solve_routines.inc b/mtx/public/mtx_solve_routines.inc
index a3138bfac..736220990 100644
--- a/mtx/public/mtx_solve_routines.inc
+++ b/mtx/public/mtx_solve_routines.inc
@@ -215,7 +215,6 @@
          real(dp) :: temp
          integer :: i, k
          info = 0
-         !$omp simd private(temp)
          do i = 1,n
             temp = b(i)
             b(i) = b(ipiv(i))
@@ -251,7 +250,6 @@
          real(dp) :: temp
          integer :: i, k
          info = 0
-         !$omp simd private(temp)
          do i = 1,n
             temp = b(i)
             b(i) = b(ipiv(i))
@@ -287,7 +285,6 @@
          real(dp) :: temp
          integer :: i, k
          info = 0
-         !$omp simd private(temp)
          do i = 1,n
             temp = b(i)
             b(i) = b(ipiv(i))

From c649882bbefadad648cc5d782f241ff6c64b9b45 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Thu, 19 Feb 2026 15:01:37 -0600
Subject: [PATCH 04/18] Switched to forum-HEAD (2026/2/19)

---
 forum/Makefile          | 2 +-
 forum/forum-HEAD.tar.gz | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)
 create mode 100644 forum/forum-HEAD.tar.gz

diff --git a/forum/Makefile b/forum/Makefile
index 3b2adbd6c..de956a064 100644
--- a/forum/Makefile
+++ b/forum/Makefile
@@ -41,7 +41,7 @@ $(BUILD_DIR_FORUM_BUILD): forum-1.0.4.tar.gz | $(BUILD_DIR_FORUM_BUILD)/. $(BUIL
 	cp $(BUILD_DIR_FORUM_BUILD)/src/include/forum.inc $(BUILD_DIR_MODULE)/include/forum.inc
 
 $(BUILD_DIR_FORUM_BUILD)/build-complete: $(BUILD_DIR_FORUM_BUILD)
-	$(MAKE) -C $(BUILD_DIR_FORUM_BUILD) SHARED=$(DYNAMIC) DEBUG=$(FORUM_DEBUG) OMP=$(WITH_OPENMP) FPE=no VERSION_CHECK=passed FPP="$(FPP)" LDFLAGS="$(LIB_DEP_ARGS)" FFLAGS="$(_FFLAGS) -std=f2018"
+	$(MAKE) -C $(BUILD_DIR_FORUM_BUILD) SHARED=$(DYNAMIC) DEBUG=$(FORUM_DEBUG) OMP=$(WITH_OPENMP) FPE=no VERSION_CHECK=passed FPP="$(FPP)" TESTS=yes 
 	touch $@
 
 $(OBJ_OUT): $(BUILD_DIR_FORUM_BUILD)/build-complete | $(BUILD_DIR_MODULE)/lib/.
diff --git a/forum/forum-HEAD.tar.gz b/forum/forum-HEAD.tar.gz
new file mode 100644
index 000000000..f3304aff9
--- /dev/null
+++ b/forum/forum-HEAD.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bc0005b56953d101eedac8936337babf63fcd4cb9a356686ce6f4381303c97cf
+size 36431

From 8e1d5a493a6ddd68ee8f0346f9ac667a56a50359 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Fri, 20 Feb 2026 16:00:46 -0600
Subject: [PATCH 05/18] Initial chages to prepare for update to gyre-9.0

---
 gyre/Makefile         | 11 +++--------
 gyre/gyre-HEAD.tar.gz |  3 +++
 2 files changed, 6 insertions(+), 8 deletions(-)
 create mode 100644 gyre/gyre-HEAD.tar.gz

diff --git a/gyre/Makefile b/gyre/Makefile
index 4d513e8fc..9e6eda51e 100644
--- a/gyre/Makefile
+++ b/gyre/Makefile
@@ -43,19 +43,14 @@ else
   GYRE_DEBUG = false
 endif
 
-ifeq ($(MESASDK_ROOT),)
-  FPP=./fypp_deps $(FLAGS_DEPS)
-else
-  FPP= PYTHONPATH=$(MESASDK_ROOT)/lib/python ./fypp_deps $(FLAGS_DEPS)
-endif
-
 BUILD_DIR_GYRE_BUILD := $(BUILD_DIR_MODULE)/src
 
-$(BUILD_DIR_GYRE_BUILD): gyre-8.1.tar.gz | $(BUILD_DIR_GYRE_BUILD)/. $(BUILD_DIR_MODULE)/include/.
+$(BUILD_DIR_GYRE_BUILD): gyre-HEAD.tar.gz | $(BUILD_DIR_GYRE_BUILD)/. $(BUILD_DIR_MODULE)/include/.
 	tar --strip-components=1 -xf $< -C $(BUILD_DIR_GYRE_BUILD)
 
 $(BUILD_DIR_GYRE_BUILD)/build-complete: $(BUILD_DIR_GYRE_BUILD)
-	$(MAKE) -C $(BUILD_DIR_GYRE_BUILD) SHARED=$(DYNAMIC) DEBUG=$(GYRE_DEBUG) OMP=$(WITH_OPENMP) CRMATH=$(WITH_CRLIBM) VERSION_CHECK=passed FPP="$(FPP)" LDFLAGS="$(LIB_DEP_ARGS)" FFLAGS="$(_FFLAGS) -std=f2018" FRONTENDS=no TOOLS=no FORUM=no IFACES=yes
+	$(MAKE) -C $(BUILD_DIR_GYRE_BUILD) SHARED=$(DYNAMIC) DEBUG=$(GYRE_DEBUG) OMP=$(WITH_OPENMP) \
+            CRMATH=$(WITH_CRLIBM) FRONTENDS=no TOOLS=no EXTERNAL_FORUM=yes EXTERNAL_FORUM_PKG=mesa-forum IFACES=yes
 	touch $@
 
 
diff --git a/gyre/gyre-HEAD.tar.gz b/gyre/gyre-HEAD.tar.gz
new file mode 100644
index 000000000..627c3ede5
--- /dev/null
+++ b/gyre/gyre-HEAD.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:483a3ebe1c2e7c7920eb0577ef283b00b2769b5cbc326cd3b0dcb2a644757e42
+size 4833323

From 8944cb09a2a22f45736bf9697bd6c1324309cc63 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Fri, 6 Mar 2026 08:24:27 -0600
Subject: [PATCH 06/18] Changed to ForUM 1.2.1

---
 forum/Makefile           | 2 +-
 forum/forum-1.0.4.tar.gz | 3 ---
 forum/forum-1.2.1.tar.gz | 3 +++
 forum/forum-HEAD.tar.gz  | 3 ---
 make/setup-depends.mk    | 6 +++---
 5 files changed, 7 insertions(+), 10 deletions(-)
 delete mode 100644 forum/forum-1.0.4.tar.gz
 create mode 100644 forum/forum-1.2.1.tar.gz
 delete mode 100644 forum/forum-HEAD.tar.gz

diff --git a/forum/Makefile b/forum/Makefile
index de956a064..5f8f81aa2 100644
--- a/forum/Makefile
+++ b/forum/Makefile
@@ -36,7 +36,7 @@ endif
 BUILD_DIR_FORUM_BUILD := $(BUILD_DIR_MODULE)/src
 INSTALL_INCLUDES_BUILD += $(BUILD_DIR_MODULE)/include/forum.inc
 
-$(BUILD_DIR_FORUM_BUILD): forum-1.0.4.tar.gz | $(BUILD_DIR_FORUM_BUILD)/. $(BUILD_DIR_MODULE)/include/.
+$(BUILD_DIR_FORUM_BUILD): forum-1.2.1.tar.gz | $(BUILD_DIR_FORUM_BUILD)/. $(BUILD_DIR_MODULE)/include/.
 	tar --strip-components=1 -xf $< -C $(BUILD_DIR_FORUM_BUILD)
 	cp $(BUILD_DIR_FORUM_BUILD)/src/include/forum.inc $(BUILD_DIR_MODULE)/include/forum.inc
 
diff --git a/forum/forum-1.0.4.tar.gz b/forum/forum-1.0.4.tar.gz
deleted file mode 100644
index 71a652ae5..000000000
--- a/forum/forum-1.0.4.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:b9db9523926ce3d390f722255b4c683307ced2933f497fbb66f2f2dfcbf70d8a
-size 32659
diff --git a/forum/forum-1.2.1.tar.gz b/forum/forum-1.2.1.tar.gz
new file mode 100644
index 000000000..2f93c8dcc
--- /dev/null
+++ b/forum/forum-1.2.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d97021daaa6b0a3f002ccc86e658963e7fb48901d4e717ec2f2aea07f9f538a5
+size 36574
diff --git a/forum/forum-HEAD.tar.gz b/forum/forum-HEAD.tar.gz
deleted file mode 100644
index f3304aff9..000000000
--- a/forum/forum-HEAD.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:bc0005b56953d101eedac8936337babf63fcd4cb9a356686ce6f4381303c97cf
-size 36431
diff --git a/make/setup-depends.mk b/make/setup-depends.mk
index e94e08839..07ffc4d68 100644
--- a/make/setup-depends.mk
+++ b/make/setup-depends.mk
@@ -4,9 +4,9 @@ include $(MAKE_DIR)/subdirs.mk
 
 ifneq ($(MESASDK_ROOT),)
   ifeq ($(WITH_CRLIBM),yes)
-    PKG_CONFIG_PATH := $(MESASDK_ROOT)/math-slots/crmath/lib/pkgconfig:$(PKG_CONFIG_PATH)
+    PKG_CONFIG_FLAGS += --define-variable=math_slot=crmath
   else
-    PKG_CONFIG_PATH := $(MESASDK_ROOT)/math-slots/default/lib/pkgconfig:$(PKG_CONFIG_PATH)
+    PKG_CONFIG_FLAGS += --define-variable=math_slot=default
   endif
 endif
 
@@ -15,7 +15,7 @@ export PKG_CONFIG_PATH
 
 define pkg-config-inner
 ifneq ($(2),)
-  TMP_VAR := $$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) pkg-config $(1) $(2) || echo "failed")
+  TMP_VAR := $$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) pkg-config $(PKG_CONFIG_FLAGS) $(1) $(2) || echo "failed")
   ifeq ($$(TMP_VAR),failed)
     $$(warning PKG_CONFIG_PATH is $$(PKG_CONFIG_PATH))
     $$(error pkg-config failed to find some of $(2), check PKG_CONFIG_PATH is correct)

From 7550366306f047fe53e680f58a96c6f2ee5b42e2 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Fri, 6 Mar 2026 08:50:53 -0600
Subject: [PATCH 07/18] Tweaked pkgconfig invocation to align with latest SDK

---
 make/setup-depends.mk | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/make/setup-depends.mk b/make/setup-depends.mk
index e94e08839..a2c9b8781 100644
--- a/make/setup-depends.mk
+++ b/make/setup-depends.mk
@@ -4,9 +4,11 @@ include $(MAKE_DIR)/subdirs.mk
 
 ifneq ($(MESASDK_ROOT),)
   ifeq ($(WITH_CRLIBM),yes)
-    PKG_CONFIG_PATH := $(MESASDK_ROOT)/math-slots/crmath/lib/pkgconfig:$(PKG_CONFIG_PATH)
+    PKG_CONFIG_FLAGS += --define-variable=math_slot=crmath
+    MESASDK_MATH_SLOT = crmath
   else
-    PKG_CONFIG_PATH := $(MESASDK_ROOT)/math-slots/default/lib/pkgconfig:$(PKG_CONFIG_PATH)
+    PKG_CONFIG_FLAGS += --define-variable=math_slot=default
+    MESASDK_MATH_SLOT = default
   endif
 endif
 

From addc58b702239727ab21a85bde522b2fcbd9221f Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Fri, 6 Mar 2026 09:50:08 -0600
Subject: [PATCH 08/18] Added missing flags for pkgconfig

---
 make/setup-depends.mk | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/make/setup-depends.mk b/make/setup-depends.mk
index a2c9b8781..37c6bf4f2 100644
--- a/make/setup-depends.mk
+++ b/make/setup-depends.mk
@@ -2,13 +2,13 @@ INTERNAL_DEPENDS_ON := $(addprefix mesa-,$(INTERNAL_DEPENDS_ON))
 
 include $(MAKE_DIR)/subdirs.mk
 
+PKG_CONFIG_FLAGS =
+
 ifneq ($(MESASDK_ROOT),)
   ifeq ($(WITH_CRLIBM),yes)
     PKG_CONFIG_FLAGS += --define-variable=math_slot=crmath
-    MESASDK_MATH_SLOT = crmath
   else
     PKG_CONFIG_FLAGS += --define-variable=math_slot=default
-    MESASDK_MATH_SLOT = default
   endif
 endif
 
@@ -17,7 +17,7 @@ export PKG_CONFIG_PATH
 
 define pkg-config-inner
 ifneq ($(2),)
-  TMP_VAR := $$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) pkg-config $(1) $(2) || echo "failed")
+  TMP_VAR := $$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) pkg-config $(PKG_CONFIG_FLAGS) $(1) $(2) || echo "failed")
   ifeq ($$(TMP_VAR),failed)
     $$(warning PKG_CONFIG_PATH is $$(PKG_CONFIG_PATH))
     $$(error pkg-config failed to find some of $(2), check PKG_CONFIG_PATH is correct)

From 704d368d7ae1e6ef5f567ef6821646d6bc2be4e8 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Fri, 6 Mar 2026 11:11:19 -0600
Subject: [PATCH 09/18] Updated to ForUM 1.2.2

---
 forum/Makefile           | 4 ++--
 forum/forum-1.2.1.tar.gz | 3 ---
 forum/forum-1.2.2.tar.gz | 3 +++
 3 files changed, 5 insertions(+), 5 deletions(-)
 delete mode 100644 forum/forum-1.2.1.tar.gz
 create mode 100644 forum/forum-1.2.2.tar.gz

diff --git a/forum/Makefile b/forum/Makefile
index 5f8f81aa2..b4fc96130 100644
--- a/forum/Makefile
+++ b/forum/Makefile
@@ -36,12 +36,12 @@ endif
 BUILD_DIR_FORUM_BUILD := $(BUILD_DIR_MODULE)/src
 INSTALL_INCLUDES_BUILD += $(BUILD_DIR_MODULE)/include/forum.inc
 
-$(BUILD_DIR_FORUM_BUILD): forum-1.2.1.tar.gz | $(BUILD_DIR_FORUM_BUILD)/. $(BUILD_DIR_MODULE)/include/.
+$(BUILD_DIR_FORUM_BUILD): forum-1.2.2.tar.gz | $(BUILD_DIR_FORUM_BUILD)/. $(BUILD_DIR_MODULE)/include/.
 	tar --strip-components=1 -xf $< -C $(BUILD_DIR_FORUM_BUILD)
 	cp $(BUILD_DIR_FORUM_BUILD)/src/include/forum.inc $(BUILD_DIR_MODULE)/include/forum.inc
 
 $(BUILD_DIR_FORUM_BUILD)/build-complete: $(BUILD_DIR_FORUM_BUILD)
-	$(MAKE) -C $(BUILD_DIR_FORUM_BUILD) SHARED=$(DYNAMIC) DEBUG=$(FORUM_DEBUG) OMP=$(WITH_OPENMP) FPE=no VERSION_CHECK=passed FPP="$(FPP)" TESTS=yes 
+	$(MAKE) -C $(BUILD_DIR_FORUM_BUILD) SHARED=$(DYNAMIC) DEBUG=$(FORUM_DEBUG) OMP=$(WITH_OPENMP) FPE=no VERSION_CHECK=passed FPP="$(FPP)"
 	touch $@
 
 $(OBJ_OUT): $(BUILD_DIR_FORUM_BUILD)/build-complete | $(BUILD_DIR_MODULE)/lib/.
diff --git a/forum/forum-1.2.1.tar.gz b/forum/forum-1.2.1.tar.gz
deleted file mode 100644
index 2f93c8dcc..000000000
--- a/forum/forum-1.2.1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d97021daaa6b0a3f002ccc86e658963e7fb48901d4e717ec2f2aea07f9f538a5
-size 36574
diff --git a/forum/forum-1.2.2.tar.gz b/forum/forum-1.2.2.tar.gz
new file mode 100644
index 000000000..30ff7144d
--- /dev/null
+++ b/forum/forum-1.2.2.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:292ebd589ec689d41e09191171815a0296bf9ff48023748ef15a9cf5a9b6d96b
+size 36640

From 7249ecc69650e39014459cc56d86cf1a8ca8c27e Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Tue, 26 May 2026 15:35:12 -0500
Subject: [PATCH 10/18] Updated GYRE to 9.1 release

---
 gyre/Makefile         | 2 +-
 gyre/gyre-8.1.tar.gz  | 3 ---
 gyre/gyre-9.1.tar.gz  | 3 +++
 gyre/gyre-HEAD.tar.gz | 3 ---
 4 files changed, 4 insertions(+), 7 deletions(-)
 delete mode 100644 gyre/gyre-8.1.tar.gz
 create mode 100644 gyre/gyre-9.1.tar.gz
 delete mode 100644 gyre/gyre-HEAD.tar.gz

diff --git a/gyre/Makefile b/gyre/Makefile
index 9e6eda51e..cd2664935 100644
--- a/gyre/Makefile
+++ b/gyre/Makefile
@@ -45,7 +45,7 @@ endif
 
 BUILD_DIR_GYRE_BUILD := $(BUILD_DIR_MODULE)/src
 
-$(BUILD_DIR_GYRE_BUILD): gyre-HEAD.tar.gz | $(BUILD_DIR_GYRE_BUILD)/. $(BUILD_DIR_MODULE)/include/.
+$(BUILD_DIR_GYRE_BUILD): gyre-9.1.tar.gz | $(BUILD_DIR_GYRE_BUILD)/. $(BUILD_DIR_MODULE)/include/.
 	tar --strip-components=1 -xf $< -C $(BUILD_DIR_GYRE_BUILD)
 
 $(BUILD_DIR_GYRE_BUILD)/build-complete: $(BUILD_DIR_GYRE_BUILD)
diff --git a/gyre/gyre-8.1.tar.gz b/gyre/gyre-8.1.tar.gz
deleted file mode 100644
index 1c3623161..000000000
--- a/gyre/gyre-8.1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:c82f440ed952401c9a308555cc950fb770abc4b62957895ba546964e732d54f5
-size 4807156
diff --git a/gyre/gyre-9.1.tar.gz b/gyre/gyre-9.1.tar.gz
new file mode 100644
index 000000000..8b4b32864
--- /dev/null
+++ b/gyre/gyre-9.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8705023f258141b646fa2289dc81ed313609e24c9edf62fb79e88ba7c8fc86ca
+size 4850501
diff --git a/gyre/gyre-HEAD.tar.gz b/gyre/gyre-HEAD.tar.gz
deleted file mode 100644
index 627c3ede5..000000000
--- a/gyre/gyre-HEAD.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:483a3ebe1c2e7c7920eb0577ef283b00b2769b5cbc326cd3b0dcb2a644757e42
-size 4833323

From e2fef014289563f741fdd85ed42276eb004371ad Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Thu, 2 Apr 2026 13:58:32 -0500
Subject: [PATCH 11/18] Bumped to forum 1.2.3, which includes the
 -ftrampoline-impl=heap build flag

---
 forum/Makefile           | 2 +-
 forum/forum-1.2.2.tar.gz | 3 ---
 forum/forum-1.2.3.tar.gz | 3 +++
 3 files changed, 4 insertions(+), 4 deletions(-)
 delete mode 100644 forum/forum-1.2.2.tar.gz
 create mode 100644 forum/forum-1.2.3.tar.gz

diff --git a/forum/Makefile b/forum/Makefile
index b4fc96130..8efe9159e 100644
--- a/forum/Makefile
+++ b/forum/Makefile
@@ -36,7 +36,7 @@ endif
 BUILD_DIR_FORUM_BUILD := $(BUILD_DIR_MODULE)/src
 INSTALL_INCLUDES_BUILD += $(BUILD_DIR_MODULE)/include/forum.inc
 
-$(BUILD_DIR_FORUM_BUILD): forum-1.2.2.tar.gz | $(BUILD_DIR_FORUM_BUILD)/. $(BUILD_DIR_MODULE)/include/.
+$(BUILD_DIR_FORUM_BUILD): forum-1.2.3.tar.gz | $(BUILD_DIR_FORUM_BUILD)/. $(BUILD_DIR_MODULE)/include/.
 	tar --strip-components=1 -xf $< -C $(BUILD_DIR_FORUM_BUILD)
 	cp $(BUILD_DIR_FORUM_BUILD)/src/include/forum.inc $(BUILD_DIR_MODULE)/include/forum.inc
 
diff --git a/forum/forum-1.2.2.tar.gz b/forum/forum-1.2.2.tar.gz
deleted file mode 100644
index 30ff7144d..000000000
--- a/forum/forum-1.2.2.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:292ebd589ec689d41e09191171815a0296bf9ff48023748ef15a9cf5a9b6d96b
-size 36640
diff --git a/forum/forum-1.2.3.tar.gz b/forum/forum-1.2.3.tar.gz
new file mode 100644
index 000000000..4f4df30c1
--- /dev/null
+++ b/forum/forum-1.2.3.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9abf4c25e846c3e30b2880e0bb984bfd37ba7d6a7fc2400346ef149214b35622
+size 36655

From 685325e03c521f82d074248d8c79b4c8bbfda7ad Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Wed, 10 Jun 2026 07:55:57 -0500
Subject: [PATCH 12/18] Bumped to gyre-9.1.1

---
 gyre/Makefile          | 2 +-
 gyre/gyre-9.1.1.tar.gz | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)
 create mode 100644 gyre/gyre-9.1.1.tar.gz

diff --git a/gyre/Makefile b/gyre/Makefile
index cd2664935..7fc992dd8 100644
--- a/gyre/Makefile
+++ b/gyre/Makefile
@@ -45,7 +45,7 @@ endif
 
 BUILD_DIR_GYRE_BUILD := $(BUILD_DIR_MODULE)/src
 
-$(BUILD_DIR_GYRE_BUILD): gyre-9.1.tar.gz | $(BUILD_DIR_GYRE_BUILD)/. $(BUILD_DIR_MODULE)/include/.
+$(BUILD_DIR_GYRE_BUILD): gyre-9.1.1.tar.gz | $(BUILD_DIR_GYRE_BUILD)/. $(BUILD_DIR_MODULE)/include/.
 	tar --strip-components=1 -xf $< -C $(BUILD_DIR_GYRE_BUILD)
 
 $(BUILD_DIR_GYRE_BUILD)/build-complete: $(BUILD_DIR_GYRE_BUILD)
diff --git a/gyre/gyre-9.1.1.tar.gz b/gyre/gyre-9.1.1.tar.gz
new file mode 100644
index 000000000..9d0f328ce
--- /dev/null
+++ b/gyre/gyre-9.1.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7c6ece36c2565a3cfb266c961e276f914fead0ec6edef7b4a00b995bd0688a0b
+size 4850811

From 715cfbd21af2db9dc945541f09728141f7e8a1a4 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Wed, 10 Jun 2026 08:01:14 -0500
Subject: [PATCH 13/18] Updated installation action to use SDK 26.6.1

---
 .github/actions/install-mesa/action.yml | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/.github/actions/install-mesa/action.yml b/.github/actions/install-mesa/action.yml
index 49937fba7..43f961606 100644
--- a/.github/actions/install-mesa/action.yml
+++ b/.github/actions/install-mesa/action.yml
@@ -7,7 +7,7 @@ inputs:
   sdk:
     description: 'The version of the MESA SDK to install'
     required: false
-    default: '25.12.1'
+    default: '26.6.1'
 
 
 runs:
@@ -60,10 +60,10 @@ runs:
           mesasdk-x86_64-linux-${{inputs.sdk}}.tar.gz
         key: ${{ runner.os }}-${{inputs.sdk}}
 
-    - name: Get SDK ${{ runner.os }} '25.12.1'
-      if: ${{ (steps.cache.outputs.cache-hit != 'true') && (  inputs.sdk == '25.12.1') && (runner.os == 'Linux') }}
+    - name: Get SDK ${{ runner.os }} '26.6.1'
+      if: ${{ (steps.cache.outputs.cache-hit != 'true') && (  inputs.sdk == '26.6.1') && (runner.os == 'Linux') }}
       run: |
-        wget -q https://zenodo.org/records/18163992/files/mesasdk-x86_64-linux-25.12.1.tar.gz
+        wget -q https://zenodo.org/records/20598423/files/mesasdk-x86_64-linux-26.6.1.tar.gz
       shell: bash
 
     - name: Unpack SDK ${{ runner.os }} ${{inputs.sdk}}
@@ -72,16 +72,16 @@ runs:
         tar xvf mesasdk-x86_64-linux-${{inputs.sdk}}.tar.gz
       shell: bash
 
-    - name: Get SDK ${{ runner.os }} '25.12.1'
-      if: ${{ (steps.cache.outputs.cache-hit != 'true') && (  inputs.sdk == '25.12.1') && (runner.os == 'macOS') }}
+    - name: Get SDK ${{ runner.os }} '26.6.1'
+      if: ${{ (steps.cache.outputs.cache-hit != 'true') && (  inputs.sdk == '26.6.1') && (runner.os == 'macOS') }}
       run: |
-        wget --user-agent="" -q http://user.astro.wisc.edu/~townsend/resource/download/mesasdk/mesasdk-aarch64-macos-25.12.1.pkg
+        wget -q https://zenodo.org/records/20598224/files/mesasdk-aarch64-macos-26.6.1.pkg
       shell: bash
 
     - name: Unpack SDK ${{ runner.os }} ${{inputs.sdk}}
       if: runner.os == 'macOS'
       run: |
-        sudo installer -pkg mesasdk-aarch64-macos-25.12.1.pkg -target /
+        sudo installer -pkg mesasdk-aarch64-macos-${{inputs.sdk}}.pkg -target /
         ln -s /Applications/mesasdk mesasdk
       shell: bash
 

From 77921e06e07af594e154f99ff051d13e157d319f Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Wed, 10 Jun 2026 09:02:39 -0500
Subject: [PATCH 14/18] Updated actions to follow the new conventions in main

---
 .github/actions/install-mesa/action.yml      | 61 +++++---------------
 .github/actions/install-sdk-linux/action.yml | 46 +++++++++++++++
 .github/actions/install-sdk-macos/action.yml | 45 +++++++++++++++
 3 files changed, 104 insertions(+), 48 deletions(-)
 create mode 100644 .github/actions/install-sdk-linux/action.yml
 create mode 100644 .github/actions/install-sdk-macos/action.yml

diff --git a/.github/actions/install-mesa/action.yml b/.github/actions/install-mesa/action.yml
index 43f961606..3f09fda82 100644
--- a/.github/actions/install-mesa/action.yml
+++ b/.github/actions/install-mesa/action.yml
@@ -10,26 +10,23 @@ inputs:
     default: '26.6.1'
 
 
+
 runs:
 
   using: 'composite'
 
   steps:
-    - name: Install dependencies Linux
-      if: runner.os == 'Linux'
-      run: |
-        sudo apt-get -y update
-        sudo apt-get -y install wget binutils make perl libx11-6 libx11-dev zlib1g zlib1g-dev tcsh
-        sudo apt-get -y autoremove
-        sudo apt-get clean
-      shell: bash
+    - name: Install SDK Linux
+      if: ${{ (runner.os == 'Linux') }}
+      uses: ./.github/actions/install-sdk-linux
+      with:
+        sdk: ${{inputs.sdk}}
 
-    - name: Install dependencies MacOS
-      if: runner.os == 'macOS'
-      run: |
-        brew install --cask xquartz
-        brew install gnu-sed
-      shell: bash
+    - name: Install SDK MacOS
+      if: ${{ (runner.os == 'Macos') }}
+      uses: ./.github/actions/install-sdk-macos
+      with:
+        sdk: ${{inputs.sdk}}
 
     - name: Create LFS file list
       run: |
@@ -41,7 +38,7 @@ runs:
       id: lfs-cache
       with:
         path: .git/lfs
-        key: ${{ runner.os }}-${{ hashFiles('.lfs-assets-id') }}-v1
+        key: lfs-${{ hashFiles('.lfs-assets-id') }}-v1
 
     - name: Git LFS Pull
       run: git lfs pull
@@ -53,42 +50,10 @@ runs:
       shell: bash
       if: steps.lfs-cache.outputs.cache-hit == 'true'
 
-    - uses: actions/cache@v4
-      id: cache
-      with:
-        path: |
-          mesasdk-x86_64-linux-${{inputs.sdk}}.tar.gz
-        key: ${{ runner.os }}-${{inputs.sdk}}
-
-    - name: Get SDK ${{ runner.os }} '26.6.1'
-      if: ${{ (steps.cache.outputs.cache-hit != 'true') && (  inputs.sdk == '26.6.1') && (runner.os == 'Linux') }}
-      run: |
-        wget -q https://zenodo.org/records/20598423/files/mesasdk-x86_64-linux-26.6.1.tar.gz
-      shell: bash
-
-    - name: Unpack SDK ${{ runner.os }} ${{inputs.sdk}}
-      if: runner.os == 'Linux'
-      run: |
-        tar xvf mesasdk-x86_64-linux-${{inputs.sdk}}.tar.gz
-      shell: bash
-
-    - name: Get SDK ${{ runner.os }} '26.6.1'
-      if: ${{ (steps.cache.outputs.cache-hit != 'true') && (  inputs.sdk == '26.6.1') && (runner.os == 'macOS') }}
-      run: |
-        wget -q https://zenodo.org/records/20598224/files/mesasdk-aarch64-macos-26.6.1.pkg
-      shell: bash
-
-    - name: Unpack SDK ${{ runner.os }} ${{inputs.sdk}}
-      if: runner.os == 'macOS'
-      run: |
-        sudo installer -pkg mesasdk-aarch64-macos-${{inputs.sdk}}.pkg -target /
-        ln -s /Applications/mesasdk mesasdk
-      shell: bash
-
     - name: Set MESA environment variables
       shell: bash
       run: |
-        echo "MESASDK_ROOT=$(readlink -f mesasdk)" >> $GITHUB_ENV
+        echo "$MESASDK_ROOT/bin" >> $GITHUB_PATH
         echo "MESA_DIR=$PWD" >> $GITHUB_ENV
 
     - name: Setup environment Linux
diff --git a/.github/actions/install-sdk-linux/action.yml b/.github/actions/install-sdk-linux/action.yml
new file mode 100644
index 000000000..dab909987
--- /dev/null
+++ b/.github/actions/install-sdk-linux/action.yml
@@ -0,0 +1,46 @@
+---
+name: 'install-sdk-linux'
+description: 'Download and unpack the Linux MESA SDK and its required dependencies'
+
+inputs:
+  sdk:
+    description: 'The version of the MESA SDK to install'
+    required: true
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Install dependencies
+      run: |
+        sudo apt-get -y update
+        sudo apt-get -y install wget binutils make perl libx11-6 libx11-dev zlib1g zlib1g-dev tcsh
+        sudo apt-get -y autoremove
+        sudo apt-get clean
+      shell: bash
+
+    - uses: actions/cache@v4
+      id: cache
+      with:
+        path: |
+          mesasdk-x86_64-linux-${{inputs.sdk}}.tar.gz
+        key: sdk-linux-${{inputs.sdk}}
+
+    - name: Download SDK '${{ inputs.sdk }}'
+      shell: bash
+      if: ${{ (steps.cache.outputs.cache-hit != 'true') }}
+      run: |
+        declare -A version
+        version[26.3.2]="https://zenodo.org/records/19210930"
+        version[26.6.1]="https://zenodo.org/records/20598423"
+
+        curl -O ${version[${{inputs.sdk}}]}/files/mesasdk-x86_64-linux-${{inputs.sdk}}.tar.gz
+
+    - name: Unpack SDK
+      run: |
+        tar xvf mesasdk-x86_64-linux-${{inputs.sdk}}.tar.gz
+      shell: bash
+
+    - name: Set SDK environment
+      run: |
+        echo "MESASDK_ROOT=$(readlink -f mesasdk-${{ inputs.sdk }})" >> $GITHUB_ENV
+      shell: bash
diff --git a/.github/actions/install-sdk-macos/action.yml b/.github/actions/install-sdk-macos/action.yml
new file mode 100644
index 000000000..17aa38729
--- /dev/null
+++ b/.github/actions/install-sdk-macos/action.yml
@@ -0,0 +1,45 @@
+---
+name: 'install-sdk-macos'
+description: 'Download and unpack the MacOS MESA SDK and its required dependencies'
+
+inputs:
+  sdk:
+    description: 'The version of the MESA SDK to install'
+    required: true
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Install dependencies
+      run: |
+        brew install --cask xquartz
+        brew install gnu-sed bash
+      shell: bash
+
+    - uses: actions/cache@v4
+      id: cache
+      with:
+        path: |
+          mesasdk-aarch64-macos-${{inputs.sdk}}.pkg
+        key: sdk-macos-${{inputs.sdk}}
+
+    - name: Download SDK
+      shell: bash
+      if: ${{ (steps.cache.outputs.cache-hit != 'true') }}
+      run: |
+        declare -A version
+        version[26.3.2]="https://zenodo.org/records/19210744"
+        version[26.6.1]="https://zenodo.org/records/20598224"
+
+        curl -O ${version[${{inputs.sdk}}]}/files/mesasdk-aarch64-macos-${{inputs.sdk}}.pkg
+
+    - name: Unpack SDK
+      run: |
+        sudo installer -pkg mesasdk-aarch64-macos-${{inputs.sdk}}.pkg -target /
+        ln -s /Applications/mesasdk mesasdk
+      shell: bash
+
+    - name: Set SDK environment
+      run: |
+        echo "MESASDK_ROOT=$(readlink -f mesasdk)" >> $GITHUB_ENV
+      shell: bash

From 68ae56f910ad95b3109efc06a7558f0f6e32cd88 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Wed, 10 Jun 2026 09:26:07 -0500
Subject: [PATCH 15/18] Changed SDK to 26.6.1

---
 .github/workflows/build.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6b7471b87..9e43f5c0f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        sdk: ["26.3.2"]  # pick 2 or 3 most recent.
+        sdk: ["26.6.1"]  # pick 2 or 3 most recent.
         os: [ubuntu-latest, macos-latest]
         dynamic: ["yes", "no"]
     runs-on: ${{ matrix.os }}

From 77c2d828ef61c9ff0430439833792a83fa7db3b6 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Thu, 11 Jun 2026 08:06:24 -0500
Subject: [PATCH 16/18] Removed stale gyre-9.1 archive

---
 gyre/gyre-9.1.tar.gz | 3 ---
 1 file changed, 3 deletions(-)
 delete mode 100644 gyre/gyre-9.1.tar.gz

diff --git a/gyre/gyre-9.1.tar.gz b/gyre/gyre-9.1.tar.gz
deleted file mode 100644
index 8b4b32864..000000000
--- a/gyre/gyre-9.1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:8705023f258141b646fa2289dc81ed313609e24c9edf62fb79e88ba7c8fc86ca
-size 4850501

From b1b9e01fbf0d40489c39f263d6f0a09d0c9163be Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Thu, 11 Jun 2026 14:35:03 -0500
Subject: [PATCH 17/18] Updated changelog to mention GYRE 9.1.1 and the
 bit-for-bit capabilities of MESA SDK 26.6.1

---
 docs/source/changelog.rst | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/docs/source/changelog.rst b/docs/source/changelog.rst
index b8dc582e5..587b97564 100644
--- a/docs/source/changelog.rst
+++ b/docs/source/changelog.rst
@@ -35,6 +35,10 @@ Diffusive overshooting (overmixing) prescriptions now support a
 
 MESA no longer stops when reactions for which special rates are set are not in the nuclear network, only a warning is printed. This is intended to make it easier to test various network sizes without having to also change the list of special reactions.
 
+GYRE has been upgraded to 9.1.1, the most recent stable release. Changes since the previous release (8.1) included in MESA can be seen `here <https://github.com/rhdtownsend/gyre/releases>`__.
+
+The `MESA SDK <http://user.astro.wisc.edu/~townsend/static.php?ref=mesasdk>`__ recommended for compiling MESA has been updated to 26.6.1. Although this newer SDK is not required to successfully build MESA, it brings the benefit of restoring the cross-platform bit-for-bit compatibility that MESA once enjoyed (meaning that runs on Linux/Intel, MacOS/Intel and MacOS/ARM give identical results).
+
 .. _Bug Fixes main:
 
 Bug Fixes
@@ -48,7 +52,6 @@ The parameter ``report_max_infall_inside_fe_core`` was ignored in versions r25.1
 
 ``fe_core_infall_limit`` now obeys ``when_to_stop_rtol`` and ``when_to_stop_atol`` again (broken since r11532).
 
-
 .. note:: Before releasing a new version of MESA, move `Changes in main` to a new section below with the version number as the title, and add a new `Changes in main` section at the top of the file (see ``changelog_template.rst``).
 
 Changes in r26.4.1

From bab48b86215d264e4ad43c785377ceaff06ecb30 Mon Sep 17 00:00:00 2001
From: Rich Townsend <townsend@astro.wisc.edu>
Date: Thu, 11 Jun 2026 14:36:04 -0500
Subject: [PATCH 18/18] Removed old SDK links from build actions

---
 .github/actions/install-sdk-linux/action.yml | 1 -
 .github/actions/install-sdk-macos/action.yml | 1 -
 2 files changed, 2 deletions(-)

diff --git a/.github/actions/install-sdk-linux/action.yml b/.github/actions/install-sdk-linux/action.yml
index dab909987..4b2a94831 100644
--- a/.github/actions/install-sdk-linux/action.yml
+++ b/.github/actions/install-sdk-linux/action.yml
@@ -30,7 +30,6 @@ runs:
       if: ${{ (steps.cache.outputs.cache-hit != 'true') }}
       run: |
         declare -A version
-        version[26.3.2]="https://zenodo.org/records/19210930"
         version[26.6.1]="https://zenodo.org/records/20598423"
 
         curl -O ${version[${{inputs.sdk}}]}/files/mesasdk-x86_64-linux-${{inputs.sdk}}.tar.gz
diff --git a/.github/actions/install-sdk-macos/action.yml b/.github/actions/install-sdk-macos/action.yml
index 17aa38729..b3475d9c0 100644
--- a/.github/actions/install-sdk-macos/action.yml
+++ b/.github/actions/install-sdk-macos/action.yml
@@ -28,7 +28,6 @@ runs:
       if: ${{ (steps.cache.outputs.cache-hit != 'true') }}
       run: |
         declare -A version
-        version[26.3.2]="https://zenodo.org/records/19210744"
         version[26.6.1]="https://zenodo.org/records/20598224"
 
         curl -O ${version[${{inputs.sdk}}]}/files/mesasdk-aarch64-macos-${{inputs.sdk}}.pkg