diff --git a/doc/ChangeLog b/doc/ChangeLog
index 5357d81b5f..b046fc278a 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,4 +1,71 @@
 ===============================================================
+Tag name: ctsm5.3.019
+Originator(s): olyson (Keith Oleson, UCAR/TSS)
+Date: Tue 14 Jan 2025 10:55:50 AM MST
+One-line Summary: Stop running 0th time step
+
+Purpose and description of changes
+----------------------------------
+ As with the last tag, this is also for consistency with CAM.
+
+Significant changes to scientifically-supported configurations
+--------------------------------------------------------------
+
+Does this tag change answers significantly for any of the following physics configurations?
+(Details of any changes will be given in the "Answer changes" section below.)
+
+    [Put an [X] in the box for any configuration with significant answer changes.]
+
+[ ] clm6_0
+
+[ ] clm5_0
+
+[ ] ctsm5_0-nwp
+
+[ ] clm4_5
+
+
+Bugs fixed
+----------
+List of CTSM issues fixed (include CTSM Issue # and description) [one per line]:
+ Fixes #925
+ Fixes #2923
+
+Testing summary:
+----------------
+
+ [PASS means all tests PASS; OK means tests PASS other than expected fails.]
+
+  build-namelist tests (if CLMBuildNamelist.pm has changed):
+
+    derecho - PASS
+
+  python testing (if python code has changed; see instructions in python/README.md; document testing done):
+
+    derecho - PASS
+
+  regular tests (aux_clm: https://github.com/ESCOMP/CTSM/wiki/System-Testing-Guide#pre-merge-system-testing):
+
+    derecho ----- OK
+    izumi ------- OK
+
+Answer changes
+--------------
+
+Changes answers relative to baseline: Yes
+
+  Summarize any changes to answers, i.e.,
+    - what code configurations: All
+    - what platforms/compilers: All
+    - nature of change: larger than roundoff/same climate
+
+Other details
+-------------
+Pull Requests that document the changes (include PR ids):
+ https://github.com/ESCOMP/ctsm/pull/2084
+
+===============================================================
+===============================================================
 Tag name: ctsm5.3.018
 Originator(s): slevis (Samuel Levis,UCAR/TSS,303-665-1310)
 Date: Fri 10 Jan 2025 05:37:08 PM MST
diff --git a/doc/ChangeSum b/doc/ChangeSum
index 51769e49a2..bf027e98fc 100644
--- a/doc/ChangeSum
+++ b/doc/ChangeSum
@@ -1,5 +1,6 @@
 Tag                   Who      Date  Summary
 ============================================================================================================================
+       ctsm5.3.019   olyson 01/14/2025 Stop running 0th time step
        ctsm5.3.018   slevis 01/10/2025 Change history time to be the middle of the time bounds
        ctsm5.3.017   slevis 01/09/2025 Merge tmp-241219 branch to master
 tmp-241219.n03.ctsm5.3.016  01/09/2025 Bug fix for izumi nag tests to pass (slevis)