diff --git a/.gitmodules b/.gitmodules
index 58d0319d5..5692a455b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -58,7 +58,7 @@
         path = components/cam
         url = https://www.github.com/ESCOMP/CAM
         fxDONOTUSEurl = https://www.github.com/ESCOMP/CAM
-        fxtag = cam6_4_157
+        fxtag = cam6_4_161
         fxrequired = ToplevelRequired
 
 [submodule "clm"]
@@ -101,7 +101,7 @@
         url = https://github.com/ESCOMP/CMEPS.git
         fxDONOTUSEurl = https://github.com/ESCOMP/CMEPS.git
         fxrequired = ToplevelRequired
-	fxtag = cmeps1.1.41
+	fxtag = cmeps1.1.42
 
 [submodule "rtm"]
         path = components/rtm
@@ -145,6 +145,13 @@
         fxtag = MPIserial_2.5.4
         fxrequired = ToplevelRequired
 
+[submodule "tuv-x"]
+	path = libraries/tuv-x
+	url = https://github.com/NCAR/tuv-x.git
+	fxDONOTUSEurl = https://github.com/NCAR/tuv-x.git
+	fxrequired = ToplevelRequired
+	fxtag = v0.14.3
+
 [submodule "pysect"]
         path = tools/statistical_ensemble_test/pyCECT
         url = https://github.com/NCAR/PyCECT
diff --git a/ChangeLog b/ChangeLog
index 2a8cc1d6b..9cad25dc8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,75 @@
+==============================================================
+Tag name: cesm3_0_alpha08o
+Originator(s): CSEG
+Date: 27th Mar 2026
+One-line Summary: CAM update for spin-up run
+
+ccs_config                             https://github.com/ESMCI/ccs_config_cesm/tree/ccs_config_cesm1.0.79  --
+cime                                   https://github.com/ESMCI/cime/tree/cime6.1.169                       --
+components/fms                         https://github.com/ESCOMP/FMS_interface/tree/fi_250428               --
+share                                  https://github.com/ESCOMP/CESM_share/tree/share1.1.19                --
+components/cam                         https://github.com/ESCOMP/CAM/cam6_4_161                             **
+components/clm                         https://github.com/ESCOMP/ctsm/tree/ctsm5.4.027                      --
+components/cice                        https://github.com/ESCOMP/CESM_CICE/tree/cesm3_cice6_6_3_6           --
+components/mom                         https://github.com/ESCOMP/MOM_interface/mi_260121                    --
+components/cism                        https://github.com/ESCOMP/cism-wrapper/tree/cismwrap_2_2_013         --
+components/cdeps                       https://github.com/ESCOMP/CDEPS/tree/cdeps1.0.93                     --
+components/cmeps                       https://github.com/ESCOMP/CMEPS/tree/cmeps1.1.42                     **
+components/rtm                         https://github.com/ESCOMP/rtm/tree/rtm1_0_89                         --
+components/ww3                         https://github.com/ESCOMP/WW3-CESM/tree/main_0.0.19                  --
+components/mizuroute                   https://github.com/ESCOMP/mizuRoute/tree/cesm-coupling.v3.0.1        --
+components/mosart                      https://github.com/ESCOMP/mosart/tree/mosart1_1_13                   --
+libraries/parallelio                   https://github.com/NCAR/ParallilIO/tree/pio2_6_8                     --
+libraries/mpi-serial                   https://github.com/ESMCI/mpi-serial/tree/MPIserial_2.5.0             --
+tools/statistical_ensemble_test/pyCECT https://github.com/NCAR/PyCECT/tree/3.2.1                            --
+tools/CUPiD                            https://github.com/NCAR/CUPiD/tree/v0.5.1                            --
+
+cam
+    Chris Fischer 2026-03-27 - cam6_4_161 - components/cam (cesm3_0_alpha08o)
+    https://github.com/ESCOMP/CAM/tags/cam6_4_161
+
+    Fixes for root dirs in cesm blds
+
+
+    Cheryl Craig 2026-03-26 - cam6_4_160 - components/cam (cesm3_0_alpha08o)
+    https://github.com/ESCOMP/CAM/tags/cam6_4_160
+
+    For Francis Vitt
+
+    Add TUV-X
+
+
+    Cheryl Craig 2026-03-24 - cam6_4_159 - components/cam (cesm3_0_alpha08o)
+    https://github.com/ESCOMP/CAM/tags/cam6_4_159
+
+    Namelist out of the box for the spin-up
+
+
+    Cheryl Craig 2026-03-24 - cam6_4_158 - components/cam (cesm3_0_alpha08o)
+    https://github.com/ESCOMP/CAM/tags/cam6_4_158
+
+    Update CAM's .gitmodules file to match alpha08l
+
+    - No change for CESM
+
+    - Answer changing for CAM checkouts
+
+
+cesm
+    Erik Kluzek 2026-03-25 - cesmXXX - (cesm3_0_alpha08o)
+    https://github.com/ESCOMP/cesm/tags/cesmXXX
+
+    Correct the mizuRoute submodule:
+
+    https://github.com/ESCOMP/CESM/pull/393
+
+
+cmeps
+    Chris Fischer 2026-03-26 - cmeps1.1.42 - src/drivers/nuopc/ (cesm3_0_alpha08o)
+    https://github.com/ESCOMP/CMEPS/tags/cmeps1.1.42
+
+    Fix issue with gmake args
+
 ==============================================================
 Tag name: cesm3_0_alpha08n
 Originator(s): CSEG
diff --git a/cime_config/testlist_allactive.xml b/cime_config/testlist_allactive.xml
index 95a993f4f..300e7efd6 100644
--- a/cime_config/testlist_allactive.xml
+++ b/cime_config/testlist_allactive.xml
@@ -183,14 +183,6 @@
       <option name="wallclock"> 00:30:00 </option>
     </options>
   </test>
-  <test name="ERS_Ld7" grid="ne30pg3_t232" compset="B1850C_LSC" testmods="allactive/defaultio">
-    <machines>
-      <machine name="derecho"   compiler="intel" category="prealpha"/>
-    </machines>
-    <options>
-      <option name="wallclock"> 00:30:00 </option>
-    </options>
-  </test>
   <!-- PET tests do not work because of issues with openmp in the se dycore -->
   <test name="PET_PM" grid="ne30pg3_t232" compset="B1850C_LTso" testmods="allactive/defaultiomi">
     <machines>
diff --git a/components/cam b/components/cam
index b5e005060..da38e5545 160000
--- a/components/cam
+++ b/components/cam
@@ -1 +1 @@
-Subproject commit b5e005060eb0d2b54e829e072681f7900c379c4a
+Subproject commit da38e55454ee870107addf6a157c0d67bc2f7978
diff --git a/components/cmeps b/components/cmeps
index 98ca7b1f1..567e1845f 160000
--- a/components/cmeps
+++ b/components/cmeps
@@ -1 +1 @@
-Subproject commit 98ca7b1f1aa436b899fdd3a33f0dadde6cd49501
+Subproject commit 567e1845f00e3f8047bb6634eec16ca9f0161f9f
diff --git a/libraries/tuv-x b/libraries/tuv-x
new file mode 160000
index 000000000..5fdf78925
--- /dev/null
+++ b/libraries/tuv-x
@@ -0,0 +1 @@
+Subproject commit 5fdf789255aa657ebdd7da61e09a076ed9c704fe