diff --git a/.github/workflows/double-precision.yml b/.github/workflows/double-precision.yml
index b0ca087ef4..cda708a4a9 100644
--- a/.github/workflows/double-precision.yml
+++ b/.github/workflows/double-precision.yml
@@ -3,6 +3,9 @@ name: Build and Test - Ubuntu/gcc double precision (TPLs, no GPUs)
 
 on:
   push:
+    branches:
+      - main
+      - develop
   pull_request:
   merge_group:
   workflow_dispatch:
diff --git a/.github/workflows/extended-precision.yml b/.github/workflows/extended-precision.yml
index 51678b6e70..2c521b2fad 100644
--- a/.github/workflows/extended-precision.yml
+++ b/.github/workflows/extended-precision.yml
@@ -2,6 +2,10 @@
 name: Build and Test - Ubuntu/gcc extended precision (TPLs, no GPUs)
 
 on:
+  push:
+    branches:
+      - main
+      - develop
   pull_request:
   merge_group:
   workflow_dispatch:
diff --git a/.github/workflows/single-precision.yml b/.github/workflows/single-precision.yml
index 30a53b0402..d986643256 100644
--- a/.github/workflows/single-precision.yml
+++ b/.github/workflows/single-precision.yml
@@ -2,6 +2,10 @@
 name: Build and Test - Ubuntu/gcc single precision (TPLs, no GPUs)
 
 on:
+  push:
+    branches:
+      - main
+      - develop
   pull_request:
   merge_group:
   workflow_dispatch:
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 63622ebb08..c02b239373 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -126,6 +126,8 @@ stages:
 
 # This is where jobs are included.
 include:
+  - project: 'lc-templates/id_tokens'
+    file: 'id_tokens.yml'
   - local: .gitlab/quartz-templates.yml
   - local: .gitlab/quartz-jobs.yml
   - local: .gitlab/lassen-templates.yml
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 44adec3f08..0b86ccff1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -86,6 +86,9 @@ ARKODE's SPRKStep time-stepping module.
 Fixed a bug in `ARKodeSPRKTable_Create` where the coefficient arrays were not
 allocated.
 
+Fix bug on LLP64 platforms (like Windows 64-bit) where `KLU_INDEXTYPE` could be
+32 bits wide even if `SUNDIALS_INT64_T` is defined.
+
 ### Deprecation Notices
 
 Numerous ARKODE stepper-specific functions are now deprecated in favor of
diff --git a/doc/shared/RecentChanges.rst b/doc/shared/RecentChanges.rst
index cd12404033..982acbeee4 100644
--- a/doc/shared/RecentChanges.rst
+++ b/doc/shared/RecentChanges.rst
@@ -84,6 +84,9 @@ ARKODE's SPRKStep time-stepping module.
 Fixed a bug in :c:func:`ARKodeSPRKTable_Create` where the coefficient arrays
 were not allocated.
 
+Fix bug on LLP64 platforms (like Windows 64-bit) where ``KLU_INDEXTYPE`` could be
+32 bits wide even if ``SUNDIALS_INT64_T`` is defined.
+
 **Deprecation Notices**
 
 Numerous ARKODE stepper-specific functions are now deprecated in favor of
@@ -91,4 +94,4 @@ ARKODE-wide functions.
 
 Deprecated ``ARKStepSetOptimalParams`` function. This functions does not have an
 ARKODE-wide equivalent, instructions have been added to the user guide for how
-to retain the current functionality using other user-callable functions.
+to retain the current functionality using other user-callable functions.
\ No newline at end of file
diff --git a/src/sunlinsol/klu/sunlinsol_klu.c b/src/sunlinsol/klu/sunlinsol_klu.c
index cbdaa54135..568dc1d549 100644
--- a/src/sunlinsol/klu/sunlinsol_klu.c
+++ b/src/sunlinsol/klu/sunlinsol_klu.c
@@ -16,6 +16,7 @@
  * the SUNLINSOL package.
  * -----------------------------------------------------------------*/
 
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sundials/sundials_math.h>
@@ -49,7 +50,7 @@
  */
 
 #if defined(SUNDIALS_INT64_T)
-#define KLU_INDEXTYPE long int
+#define KLU_INDEXTYPE int64_t
 #else
 #define KLU_INDEXTYPE int
 #endif