Initial ChangeLog update.

doc/ChangeLog

@@ -1,5 +1,59 @@
 ===============================================================
 
+Tag name: cam6_4_0XX
+Originator(s): nusbaume
+Date: 22 December 2024
+One-line Summary: Revert t_sfc limiter in RRTMGP
+Github PR URL: https://github.com/ESCOMP/CAM/pull/XXXX
+
+Purpose of changes (include the issue number and title text for each relevant GitHub issue):
+
+#1188 - Revert t_sfc limiter
+  - Also updates the CICE tag to fix the original bad temperatures problem.
+
+Describe any changes made to build system: N/A
+
+Describe any changes made to the namelist: N/A
+
+List any changes to the defaults for the boundary datasets: N/A
+
+Describe any substantial timing or memory changes: N/A
+
+Code reviewed by: cacraig, peverwhee
+
+List all files eliminated: N/A
+
+List all files added and what they do: N/A
+
+List all existing files that have been modified, and describe the changes:
+
+M       .gitmodules
+M       components/cice
+  - Update CICE tag to cesm3_cice6_6_0_5 (Github issue #1185)
+
+M       src/physics/rrtmgp/rrtmgp_inputs.F90
+  - Revert t_sfc limiter in RRTMGP (Github PR #1184)
+
+If there were any failures reported from running test_driver.sh on any test
+platform, and checkin with these failures has been OK'd by the gatekeeper,
+then copy the lines from the td.*.status files for the failed tests to the
+appropriate machine below.  All failed tests must be justified.
+
+derecho/intel/aux_cam:
+
+derecho/nvhpc/aux_cam:
+
+izumi/nag/aux_cam:
+
+izumi/gnu/aux_cam:
+
+CAM tag used for the baseline comparison tests if different than previous
+tag:
+
+Summarize any changes to answers:
+
+===============================================================
+
 Tag name: cam6_4_048
 Originator(s): jedwards4b, peverwhee
 Date: 20 December 2024