diff --git a/doc/ChangeLog b/doc/ChangeLog
index b5109f1d9a..2cb653ca46 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,5 +1,85 @@
 ===============================================================
 
+Tag name: cam6_3_145
+Originator(s): katetc, cacraigucar, andrewgettelman
+Date: 05 Jan 2024
+One-line Summary: New PUMAS External with adjusted vapor deposition onto snow
+Github PR URL: https://github.com/ESCOMP/CAM/pull/938
+
+Purpose of changes (include the issue number and title text for each relevant GitHub issue):
+
+	A one-line change in PUMAS resulting in a new tag for the external. Adds a corresponding
+	limiter for vapor deposition onto snow as used for rain. Also updates the test lists from
+	Cheyenne to Derecho in all cases.
+	Resolves Issue 936 - PUMAS update for vapor deposition onto snow
+	Resolves Issue 947 - Rename all cheyenne tests to derecho
+
+Describe any changes made to build system: None
+
+Describe any changes made to the namelist: None
+
+List any changes to the defaults for the boundary datasets: None
+
+Describe any substantial timing or memory changes: None
+
+Code reviewed by: PeterHjortLauritzen, cacraigucar, adamrher
+
+List all files eliminated: None
+
+List all files added and what they do: None
+
+List all existing files that have been modified, and describe the changes:
+
+M	Externals_CAM.cfg
+  - Point to new pumas tag pumas_cam-release_v1.35
+
+M	cime_config/testdefs/testlist_cam.xml
+  - Change all Cheyenne to Derecho tests
+  - Change wallclock time from 00:10:00 to 00:20:00 for Derecho test
+  ERP_Ln9_Vnuopc.f09_f09_mg17.FHIST_BDRD.derecho_intel.cam-outfrq9s
+
+M	test/system/archive_baseline.sh
+  - Change cheyenne to Derecho, remove support for Cheyenne
+
+M	test/system/test_driver.sh
+  - Remove support for Cheyenne, updates for Derecho
+
+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:
+  ERP_Ln9_Vnuopc.C96_C96_mg17.F2000climo.derecho_intel.cam-outfrq9s_mg3 (Overall: PEND)
+  ERP_Ln9_Vnuopc.f09_f09_mg17.FCSD_HCO.derecho_intel.cam-outfrq9s (Overall: FAIL)
+ - pre-existing failures
+
+  ERP_D_Ln9.ne30pg3_ne30pg3_mg17.FLTHIST.derecho_intel.cam-outfrq9s (Overall: DIFF)
+  ERP_D_Ln9_Vnuopc.ne30pg3_ne30pg3_mg17.F2000dev.derecho_intel.cam-outfrq9s (Overall: DIFF)
+  ERP_Ln9_Vnuopc.f09_f09_mg17.F2000dev.derecho_intel.cam-outfrq9s_mg3 (Overall: DIFF)
+  ERS_Ld3_Vnuopc.f10_f10_mg37.F1850.derecho_intel.cam-outfrq1d_14dec_ghg_cam_dev (Overall: DIFF)
+  SMS_D_Ln9.ne30pg3_ne30pg3_mg17.FMTHIST.derecho_intel.cam-outfrq9s (Overall: DIFF)
+  SMS_D_Ln9_Vnuopc_P1280x1.ne30pg3_ne30pg3_mg17.FCLTHIST.derecho_intel.cam-outfrq9s (Overall: DIFF)
+  SMS_Ld1_Vnuopc.f19_f19.F2000dev.derecho_intel.cam-outfrq1d (Overall: DIFF)
+ - Expected answer changes due to PUMAS update
+
+izumi/nag/aux_cam:
+  DAE_Vnuopc.f45_f45_mg37.FHS94.izumi_nag.cam-dae (Overall: FAIL) details:
+ - pre-existing failure
+
+izumi/gnu/aux_cam:
+  SMS_D_Ln9.f10_f10_mg37.2000_CAM%DEV%GHGMAM4_CLM50%SP_CICE%PRES_DOCN%DOM_MOSART_SGLC_SWAV_SESP.izumi_gnu.cam-outfrq9s (Overall: DIFF)
+ - Expected answer changes due to PUMAS update
+
+Summarize any changes to answers:
+
+	Small but climate-changing impacts. Discussion and diagnostics here: https://github.com/NCAR/amwg_dev/issues/445
+
+===============================================================
+
+
+===============================================================
+
 Tag name: cam6_3_144
 Originator(s): katetc, cacraigucar, andrewgettelman, wkchuang, djgagne
 Date: 02 Jan 2024