diff --git a/doc/ChangeLog b/doc/ChangeLog
index 635389ba6d..3c2b3584e8 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,6 +1,84 @@
 
 ===============================================================
 
+Tag name:
+Originator(s): gdicker
+Date: Sep 09, 2024
+One-line Summary: Update MPAS-A to v8.2.1
+Github PR URL: https://github.com/ESCOMP/CAM/pull/1145
+
+Purpose of changes (include the issue number and title text for each relevant GitHub issue):
+- Update MPAS-A within CAM to 'v8.2.1'  https://github.com/ESCOMP/CAM/issue/1144
+
+Describe any changes made to build system:
+
+Describe any changes made to the namelist:
+
+List any changes to the defaults for the boundary datasets:
+
+Describe any substantial timing or memory changes:
+
+Code reviewed by:
+
+List all files eliminated:
+
+List all files added and what they do:
+
+List all existing files that have been modified, and describe the changes:
+M       .gitmodules
+ - Update the mpas fxTag to v8.2.1
+
+M      src/dynamics/mpas/Makefile
+ - Add rules to build stream_inquiry and mpas_stream_inquiry
+ - Pass CPPFLAGS to the registry command
+ - Edit CPPFLAGS: add MPAS_BUILD_TARGET and add the GIT_VERSION using a shell command
+ - Also a commented out addition to enable mpi_f08 support in MPAS
+
+M      src/dynamics/mpas/driver/cam_mpas_subdriver.F90
+ - Add streamInfo to the MPAS domain_ptr
+ - Modify function calls for updated variables
+ - Optional mpi_f08 change
+
+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, i.e.,
+- what code configurations:
+- what platforms/compilers:
+- nature of change (roundoff; larger than roundoff but same climate; new
+  climate):
+
+If bitwise differences were observed, how did you show they were no worse
+than roundoff?
+
+If this tag changes climate describe the run(s) done to evaluate the new
+climate in enough detail that it(they) could be reproduced, i.e.,
+- source tag (all code used must be in the repository):
+- platform/compilers:
+- configure commandline:
+- build-namelist command (or complete namelist):
+- MSS location of output:
+
+MSS location of control simulations used to validate new climate:
+
+URL for AMWG diagnostics output used to validate new climate:
+
+===============================================================
+===============================================================
+
 Tag name: cam6_4_030
 Originator(s): eaton, cacraig
 Date: Sept 6, 2024