Updated ChangeLog in advance of cam6_4_009 tag

doc/ChangeLog

@@ -1,5 +1,64 @@
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+Tag name: cam6_4_009
+Originator(s): bdobbins, fvitt, cacraig
+Date: July 11th, 2024
+One-line Summary: replaced outdated log-gamma function with intrinsic
+Github PR URL: https://github.com/ESCOMP/CAM/pull/1081
+
+Purpose of changes (include the issue number and title text for each relevant GitHub issue):
+ - Cleanup - replacing log-gamma function with F2008 intrinsic in WACCMX code #1080
+
+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: fvitt
+
+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     src/ionosphere/waccmx/wei05sc.F90
+      - Replaces calls to a log-gamma function w/ math intrinsic
+
+
+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.f09_f09_mg17.FCSD_HCO.derecho_intel.cam-outfrq9s (Overall: FAIL) details:
+    FAIL ERP_Ln9.f09_f09_mg17.FCSD_HCO.derecho_intel.cam-outfrq9s COMPARE_base_rest
+       - pre-existing failure due to HEMCO not having reproducible results issues #1018 and #856
+
+  SMS_D_Ln9_P1280x1.ne0ARCTICne30x4_ne0ARCTICne30x4_mt12.FHIST.derecho_intel.cam-outfrq9s (Overall: PEND) details:
+    PEND SMS_D_Ln9_P1280x1.ne0ARCTICne30x4_ne0ARCTICne30x4_mt12.FHIST.derecho_intel.cam-outfrq9s SHAREDLIB_BUILD
+  SMS_D_Ln9_P1280x1.ne0CONUSne30x8_ne0CONUSne30x8_mt12.FCHIST.derecho_intel.cam-outfrq9s (Overall: PEND) details:
+    PEND SMS_D_Ln9_P1280x1.ne0CONUSne30x8_ne0CONUSne30x8_mt12.FCHIST.derecho_intel.cam-outfrq9s SHAREDLIB_BUILD
+       - pre-existing failures - need fix in CLM external
+
+  SMS_D_Ln9.T42_T42.FSCAM.derecho_intel.cam-outfrq9s (Overall: FAIL) details:
+    FAIL SMS_D_Ln9.T42_T42.FSCAM.derecho_intel.cam-outfrq9s RUN time=41
+       - Bug in med.F90 - Will go away when CICE external is updated post git-fleximod
+
+izumi/nag/aux_cam:
+  DAE.f45_f45_mg37.FHS94.izumi_nag.cam-dae (Overall: FAIL) details:
+    FAIL DAE.f45_f45_mg37.FHS94.izumi_nag.cam-dae RUN time=10
+    PEND DAE.f45_f45_mg37.FHS94.izumi_nag.cam-dae COMPARE_base_da
+      - pre-existing failure - issue #670
+
+izumi/gnu/aux_cam: None
+
+===============================================================
+===============================================================
+
 Tag name: cam6_4_008
 Originator(s): pel, cacraig
 Date: July 10, 2024