diff --git a/ChangeLog b/ChangeLog
index 3fa08760d..f47223fbb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,46 @@
+==============================================================
+Tag name: cesm3_0_beta01
+Originator(s): CSEG
+Date: 25 June 2024
+One-line Summary: git-fleximod and remove externals for CESM3
+
+
+components/cam          https://github.com/ESCOMP/CAM/cam6_3_162                              
+components/cice         https://github.com/ESCOMP/CESM_CICE/tree/cesm_cice6_5_0_9             
+cime                    https://github.com/ESMCI/cime/tree/cime6.0.246                        
+share                   https://github.com/ESCOMP/CESM_share/tree/share1.0.19                 
+ccs_config              https://github.com/ESMCI/ccs_config_cesm/tree/ccs_config_cesm0.0.109  
+components/cmeps        https://github.com/ESCOMP/CMEPS/tree/cmeps0.14.63                     
+components/cdeps        https://github.com/ESCOMP/CDEPS/tree/cdeps1.0.37                      
+components/cism         https://github.com/ESCOMP/cism-wrapper/tree/cismwrap_2_2_001          
+components/clm          https://github.com/ESCOMP/ctsm/tree/ctsm5.2.007                       
+components/fms          https://github.com/ESCOMP/FMS_interface/tree/fi_240516                
+components/mizuroute    https://github.com/ESCOMP/mizuRoute/tree/cesm-coupling.n02_v2.1.2     
+components/mom          https://github.com/ESCOMP/MOM_interface/mi_240522                     
+components/mosart       https://github.com/ESCOMP/mosart/tree/mosart1_0_49                    
+components/rtm          https://github.com/ESCOMP/rtm/tree/rtm1_0_79                         
+components/ww3          https://github.com/ESCOMP/WW3-CESM/tree/ww3i_0.0.2                    
+libraries/mct           https://github.com/MCSclimate/MCT/tree/MCT_2.11.0                     
+libraries/parallelio    https://github.com/NCAR/ParallilIO/tree/pio2_6_2                     
+
+Answer Changes introduced with this tag when compared to cesm2_3_beta17:
+    WW3DEV moved to WW3
+    All B compsets switched from POP to MOM.
+
+Problems identified after tag creation:
+  -Several MEMCOMP test failed because cpl-mem.log files weren't generate.  
+   This is an issue with cime not creating the log file when the runs are too short.
+  -Fully active restart tests are failing because the rpointer files are being
+   over written at the end of the first run.
+  -Some compset need to be updated or removed from testing.
+  -Some CICE tests need to have the test mods updated.
+  -PET_PM tests fail with MOM.
+  -Some CAM tests are missing land surface data.
+
 ==============================================================
 Tag name: cesm3_0_alpha01a
 Originator(s): CSEG
-Date: 21 June 2024
+Date: 24 June 2024
 One-line Summary: git-fleximod and remove externals for CESM3 
 
 components/cam          https://github.com/ESCOMP/CAM/cam6_3_162                              **