diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 70138a2b3..c5c1097d3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -71,7 +71,7 @@ stages:
     include:
       - local: '.gitlab/custom-jobs-and-variables.yml'
       - project: 'radiuss/radiuss-shared-ci'
-        ref: 'v2023.09.0'
+        ref: 'v2023.12.1'
         file: 'pipelines/${CI_MACHINE}.yml'
       - artifact: '${CI_MACHINE}-jobs.yml'
         job: 'generate-job-lists'
@@ -82,7 +82,7 @@ stages:
 include:
   # [Optional] checks preliminary to running the actual CI test
   #- project: 'radiuss/radiuss-shared-ci'
-  #  ref: 'v2023.09.0'
+  #  ref: 'v2023.12.1'
   #  file: 'preliminary-ignore-draft-pr.yml'
   # pipelines subscribed by the project
   - local: '.gitlab/subscribed-pipelines.yml'
diff --git a/.gitlab/custom-jobs-and-variables.yml b/.gitlab/custom-jobs-and-variables.yml
index 3ebd15f36..1eaa1236c 100644
--- a/.gitlab/custom-jobs-and-variables.yml
+++ b/.gitlab/custom-jobs-and-variables.yml
@@ -14,19 +14,30 @@ variables:
 
 # Ruby
 # Arguments for top level allocation
-  RUBY_SHARED_ALLOC: "--exclusive --reservation=ci --qos=ci_ruby --time=10 --nodes=1"
+  RUBY_SHARED_ALLOC: "--exclusive --reservation=ci --time=10 --nodes=2"
 # Arguments for job level allocation
-  RUBY_JOB_ALLOC: "--overlap --reservation=ci --qos=ci_ruby --time=10 --nodes=1"
+# Note: We repeat the reservation, necessary when jobs are manually re-triggered.
+  RUBY_JOB_ALLOC: "--overlap --reservation=ci --nodes=1"
 # Project specific variants for ruby
   PROJECT_RUBY_VARIANTS: "~shared +fortran +tools tests=basic "
 # Project specific deps for ruby
   PROJECT_RUBY_DEPS: ""
 
+# Poodle
+# Arguments for top level allocation
+  POODLE_SHARED_ALLOC: "--exclusive --partition=pdebug --time=8 --nodes=1"
+# Arguments for job level allocation
+  POODLE_JOB_ALLOC: "--overlap --nodes=1"
+# Project specific variants for poodle
+  PROJECT_POODLE_VARIANTS: "~shared +fortran +tools tests=basic"
+# Project specific deps for poodle
+  PROJECT_POODLE_DEPS: ""
+
 # Corona
 # Arguments for top level allocation
-  CORONA_SHARED_ALLOC: "--exclusive --time-limit=15m --nodes=1"
+  CORONA_SHARED_ALLOC: "--exclusive --time-limit=10m --nodes=1"
 # Arguments for job level allocation
-  CORONA_JOB_ALLOC: "--time-limit=10m --nodes=1 --begin-time=+5s"
+  CORONA_JOB_ALLOC: "--nodes=1 --begin-time=+5s"
 # Project specific variants for corona
   PROJECT_CORONA_VARIANTS: "~shared +fortran +device_alloc tests=basic "
 # Project specific deps for corona
@@ -34,9 +45,9 @@ variables:
 
 # Tioga
 # Arguments for top level allocation
-  TIOGA_SHARED_ALLOC: "--exclusive --time-limit=20m --nodes=1"
+  TIOGA_SHARED_ALLOC: "--exclusive --time-limit=15m --nodes=1"
 # Arguments for job level allocation
-  TIOGA_JOB_ALLOC: "--time-limit=15m --nodes=1 --begin-time=+5s"
+  TIOGA_JOB_ALLOC: "--nodes=1 --begin-time=+5s"
 # Project specific variants for tioga
   PROJECT_TIOGA_VARIANTS: "~shared +fortran +device_alloc tests=basic "
 # Project specific deps for tioga
@@ -45,7 +56,7 @@ variables:
 # Lassen and Butte use a different job scheduler (spectrum lsf) that does not
 # allow pre-allocation the same way slurm does.
 # Arguments for job level allocation
-  LASSEN_JOB_ALLOC: "1 -W 18"
+  LASSEN_JOB_ALLOC: "1 -W 10 -q pci"
 # Project specific variants for lassen
   PROJECT_LASSEN_VARIANTS: "~shared +fortran +tools tests=basic "
 # Project specific deps for lassen
diff --git a/.gitlab/jobs/corona.yml b/.gitlab/jobs/corona.yml
index aa656f12f..d74ac7ef7 100644
--- a/.gitlab/jobs/corona.yml
+++ b/.gitlab/jobs/corona.yml
@@ -5,6 +5,13 @@
 # SPDX-License-Identifier: (MIT)
 ###############################################################################
 
+# Override reproducer section to define Umpire specific variables.
+.corona_reproducer_vars:
+  script:
+    - |
+      echo -e "export MODULE_LIST=\"${MODULE_LIST}\""
+      echo -e "export SPEC=\"${SPEC//\"/\\\"}\""
+
 ########################
 # Overridden shared jobs
 ########################
@@ -25,8 +32,8 @@
 # This job intentionally tests our umpire package.py because although this job does not
 # explicitly have the ~tools, the package.py should still disable tools from being built.
 ###
-rocmcc_5_6_1_hip_openmp_device_alloc:
+rocmcc_5_7_0_hip_openmp_device_alloc:
   variables:
-    SPEC: "~shared +fortran +openmp +rocm +device_alloc tests=basic amdgpu_target=gfx906 %rocmcc@5.6.1 ^hip@5.6.1"
+    SPEC: "~shared +fortran +openmp +rocm +device_alloc tests=basic amdgpu_target=gfx906 %rocmcc@5.7.0 ^hip@5.7.0"
   extends: .job_on_corona
 
diff --git a/.gitlab/jobs/lassen.yml b/.gitlab/jobs/lassen.yml
index d510e3b56..4329d0e4e 100644
--- a/.gitlab/jobs/lassen.yml
+++ b/.gitlab/jobs/lassen.yml
@@ -5,6 +5,13 @@
 # SPDX-License-Identifier: (MIT)
 ###############################################################################
 
+# Override reproducer section to define Umpire specific variables.
+.lassen_reproducer_vars:
+  script:
+    - |
+      echo -e "export MODULE_LIST=\"${MODULE_LIST}\""
+      echo -e "export SPEC=\"${SPEC//\"/\\\"}\""
+
 ########################
 # Overridden shared jobs
 ########################
@@ -12,6 +19,14 @@
 # We keep ${PROJECT_<MACHINE>_VARIANTS} and ${PROJECT_<MACHINE>_DEPS} So that
 # the comparison with the original job is easier.
 
+# Overriden to increase allocation
+xl_2022_08_19_gcc_8_3_1_cuda_11_2_0:
+  variables:
+    SPEC: "${PROJECT_LASSEN_VARIANTS} +cuda %xl@16.1.1.12.gcc.8.3.1 ^cuda@11.2.0+allow-unsupported-compilers ${PROJECT_LASSEN_DEPS}"
+    MODULE_LIST: "cuda/11.2.0"
+    LASSEN_JOB_ALLOC: "1 -W 20 -q pci"
+  extends: .job_on_lassen
+
 
 ############
 # Extra jobs
@@ -92,4 +107,5 @@ xl_2022_08_19_gcc_8_3_1_cuda_11_2_tpls:
   variables:
     SPEC: "~shared +fortran +cuda +tools tests=basic %xl@16.1.1.12.gcc.8.3.1 ^cuda@11.7.0+allow-unsupported-compilers"
     MODULE_LIST: "cuda/11.7.0"
+    LASSEN_JOB_ALLOC: "1 -W 20 -q pci"
   extends: .job_on_lassen
diff --git a/.gitlab/jobs/poodle.yml b/.gitlab/jobs/poodle.yml
new file mode 100644
index 000000000..ec1870f4a
--- /dev/null
+++ b/.gitlab/jobs/poodle.yml
@@ -0,0 +1,60 @@
+###############################################################################
+# Copyright (c) 2022-23, Lawrence Livermore National Security, LLC and RADIUSS
+# project contributors. See the COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (MIT)
+###############################################################################
+
+# Override reproducer section to define Umpire specific variables.
+.poodle_reproducer_vars:
+  script:
+    - |
+      echo -e "export MODULE_LIST=\"${MODULE_LIST}\""
+      echo -e "export SPEC=\"${SPEC//\"/\\\"}\""
+
+########################
+# Overridden shared jobs
+########################
+# We duplicate the shared jobs description and add necessary changes for RAJA.
+# We keep ${PROJECT_<MACHINE>_VARIANTS} and ${PROJECT_<MACHINE>_DEPS} So that
+# the comparison with the original job is easier.
+
+# Allow failure due to compiler internal error building wrapfumpire.f
+intel_2022_1_0:
+  variables:
+    SPEC: "${PROJECT_RUBY_VARIANTS} %intel@2022.1.0 ${PROJECT_RUBY_DEPS}"
+  extends: .job_on_poodle
+  allow_failure: true
+
+############
+# Extra jobs
+############
+# We do not recommend using ${PROJECT_<MACHINE>_VARIANTS} and
+# ${PROJECT_<MACHINE>_DEPS} in the extra jobs. There is not reason not to fully
+# describe the spec here.
+
+gcc_10_3_1_numa:
+  variables:
+    SPEC: "~shared +fortran +numa +tools tests=basic %gcc@10.3.1"
+  extends: .job_on_poodle
+
+clang_14_0_6_gcc_10_3_1_sqlite_experimental:
+  variables:
+    SPEC: "~shared +sqlite_experimental +tools tests=basic %clang@14.0.6.gcc.10.3.1"
+  extends: .job_on_poodle
+
+# Develop builds against specific tpl version.
+clang_14_0_6_gcc_10_3_1_tpls:
+  variables:
+    SPEC: "~shared +fortran +tools tests=basic %clang@14.0.6.gcc.10.3.1"
+  extends: .job_on_poodle
+
+gcc_10_3_1_tpls:
+  variables:
+    SPEC: "~shared +fortran +tools tests=basic %gcc@10.3.1"
+  extends: .job_on_poodle
+
+gcc_10_3_1_ipc_no_mpi:
+  variables:
+    SPEC: "~shared +ipc_shmem tests=basic %gcc@10.3.1"
+  extends: .job_on_poodle
diff --git a/.gitlab/jobs/ruby.yml b/.gitlab/jobs/ruby.yml
index ee38f2cb9..b338a7cd8 100644
--- a/.gitlab/jobs/ruby.yml
+++ b/.gitlab/jobs/ruby.yml
@@ -1,10 +1,17 @@
 ###############################################################################
-# Copyright (c) 2022, Lawrence Livermore National Security, LLC and RADIUSS
+# Copyright (c) 2022-23, Lawrence Livermore National Security, LLC and RADIUSS
 # project contributors. See the COPYRIGHT file for details.
 #
 # SPDX-License-Identifier: (MIT)
 ###############################################################################
 
+# Override reproducer section to define UMPIRE specific variables.
+.ruby_reproducer_vars:
+  script:
+    - |
+      echo -e "export MODULE_LIST=\"${MODULE_LIST}\""
+      echo -e "export SPEC=\"${SPEC//\"/\\\"}\""
+
 ########################
 # Overridden shared jobs
 ########################
@@ -15,7 +22,7 @@
 # Allow failure due to compiler internal error building wrapfumpire.f
 intel_2022_1_0:
   variables:
-    SPEC: "~shared +fortran +tools tests=basic %intel@2022.1.0"
+    SPEC: "${PROJECT_RUBY_VARIANTS} %intel@2022.1.0 ${PROJECT_RUBY_DEPS}"
   extends: .job_on_ruby
   allow_failure: true
 
@@ -51,11 +58,3 @@ gcc_10_3_1_ipc_no_mpi:
   variables:
     SPEC: "~shared +ipc_shmem tests=basic %gcc@10.3.1"
   extends: .job_on_ruby
-
-# Oneapi is not available on ruby@toss4 (rhel8)
-## We deactivate this job as it is known to fail with Umpire: needs gcc toolchain.
-#intel_2022_1_0:
-#  variables:
-#    ON_RUBY: "OFF"
-#    SPEC: "${PROJECT_RUBY_VARIANTS} %intel@2022.1.0 ${PROJECT_RUBY_DEPS}"
-#  extends: .job_on_ruby
diff --git a/.gitlab/jobs/tioga.yml b/.gitlab/jobs/tioga.yml
index 29572db24..3c64faa81 100644
--- a/.gitlab/jobs/tioga.yml
+++ b/.gitlab/jobs/tioga.yml
@@ -5,6 +5,13 @@
 # SPDX-License-Identifier: (MIT)
 ###############################################################################
 
+# Override reproducer section to define Umpire specific variables.
+.tioga_reproducer_vars:
+  script:
+    - |
+      echo -e "export MODULE_LIST=\"${MODULE_LIST}\""
+      echo -e "export SPEC=\"${SPEC//\"/\\\"}\""
+
 ########################
 # Overridden shared jobs
 ########################
@@ -29,8 +36,8 @@ cce_16_0_1:
 # This job intentionally tests our umpire package.py because although this job does not
 # explicitly have the ~tools, the package.py should still disable tools from being built.
 ###
-rocmcc_5_6_1_hip_openmp_device_alloc:
+rocmcc_5_7_1_hip_openmp_device_alloc:
   variables:
-    SPEC: "~shared +fortran +openmp +rocm +device_alloc tests=basic amdgpu_target=gfx90a %rocmcc@5.6.1 ^hip@5.6.1"
+    SPEC: "~shared +fortran +openmp +rocm +device_alloc tests=basic amdgpu_target=gfx90a %rocmcc@5.7.1 ^hip@5.7.1"
   extends: .job_on_tioga
 
diff --git a/.gitlab/subscribed-pipelines.yml b/.gitlab/subscribed-pipelines.yml
index f14dffccf..c6c64a914 100644
--- a/.gitlab/subscribed-pipelines.yml
+++ b/.gitlab/subscribed-pipelines.yml
@@ -38,12 +38,14 @@ generate-job-lists:
     LOCAL_JOBS_PATH: ".gitlab/jobs"
   script:
     - cat ${RADIUSS_JOBS_PATH}/ruby.yml ${LOCAL_JOBS_PATH}/ruby.yml > ruby-jobs.yml
+    - cat ${RADIUSS_JOBS_PATH}/poodle.yml ${LOCAL_JOBS_PATH}/poodle.yml > poodle-jobs.yml
     - cat ${RADIUSS_JOBS_PATH}/lassen.yml ${LOCAL_JOBS_PATH}/lassen.yml > lassen-jobs.yml
     - cat ${RADIUSS_JOBS_PATH}/corona.yml ${LOCAL_JOBS_PATH}/corona.yml > corona-jobs.yml
     - cat ${RADIUSS_JOBS_PATH}/tioga.yml ${LOCAL_JOBS_PATH}/tioga.yml > tioga-jobs.yml
   artifacts:
     paths:
       - ruby-jobs.yml
+      - poodle-jobs.yml
       - lassen-jobs.yml
       - corona-jobs.yml
       - tioga-jobs.yml
@@ -60,6 +62,18 @@ ruby-build-and-test:
   needs: [ruby-up-check, generate-job-lists]
   extends: [.build-and-test]
 
+# POODLE
+poodle-up-check:
+  variables:
+    CI_MACHINE: "poodle"
+  extends: [.machine-check]
+
+poodle-build-and-test:
+  variables:
+    CI_MACHINE: "poodle"
+  needs: [poodle-up-check, generate-job-lists]
+  extends: [.build-and-test]
+
 # CORONA
 corona-up-check:
   variables:
diff --git a/.uberenv_config.json b/.uberenv_config.json
index d30807d32..aedd49294 100644
--- a/.uberenv_config.json
+++ b/.uberenv_config.json
@@ -4,7 +4,7 @@
 "package_final_phase" : "initconfig",
 "package_source_dir" : "../..",
 "spack_url": "https://github.com/spack/spack.git",
-"spack_branch": "v0.20.1",
+"spack_branch": "develop-2024-01-21",
 "spack_activate" : {},
 "spack_configs_path": "scripts/radiuss-spack-configs",
 "spack_packages_path": "scripts/radiuss-spack-configs/packages",
diff --git a/scripts/radiuss-spack-configs b/scripts/radiuss-spack-configs
index 0fa1fca28..a37c3e190 160000
--- a/scripts/radiuss-spack-configs
+++ b/scripts/radiuss-spack-configs
@@ -1 +1 @@
-Subproject commit 0fa1fca28e51c7ea17f2e06e506dff0f8c20bccf
+Subproject commit a37c3e1906baef912c59f3ef52aa45ab71cab0be