ChangeLog draft

doc/ChangeLog

@@ -1,5 +1,84 @@
 ===============================================================
 
+Tag name: cam6_4_020
+Originator(s): fvitt
+Date: 13 Aug 2024
+One-line Summary: Correction to aerosol convective removal and other misc fixes
+Github PR URL: https://github.com/ESCOMP/CAM/pull/1111
+
+Purpose of changes (include the issue number and title text for each relevant GitHub issue):
+
+ Fixes to the follow:
+  . an error in the calculation of dz in the aerosol convective removal code
+  . issue #1030 -- Incorrect waccm_forcing namelist settings in FWsc2000climo and FWsc2010climo compsets
+  . issue #1125 -- archive_baselines does not append compiler onto derecho baselines properly
+
+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: cacraigucar
+
+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       bld/namelist_files/use_cases/waccm_sc_2000_cam6.xml
+M       bld/namelist_files/use_cases/waccm_sc_2010_cam6.xml
+ - corrections to waccm_forcing namelist settings
+
+M       src/chemistry/modal_aero/modal_aero_convproc.F90
+ - correctly calculate dz
+ - misc code clean up
+
+M       test/system/archive_baseline.sh
+ - append compiler name to tag name used in baseline path
+
+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_019
 Originator(s): katec, cacraig, vlarson, bstephens82, huebleruwm, zarzycki, JulioTBacmeister, jedwards4b
 Date: 12 August 2024
@@ -310,7 +389,7 @@ Issue #1063 - Possible modification to RRTMG-P for ~80km top model
   as well as the cam7-MT configuration.
 
   Note that this modification is still being tested for scientific validity
-  in the cam7-MT configuration. 
+  in the cam7-MT configuration.
 
 Issue #1097 - HEMCO reference in .gitmodules is a branch not a tag.
 . Modify .gitmodules to resolve #1097