diff --git a/.gitmodules b/.gitmodules
index 38a38125..b905a8ec 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -74,7 +74,7 @@ fxDONOTUSEurl = https://github.com/NorESMHub/NorESM_share.git
 [submodule "blom"]
 path = components/blom
 url = https://github.com/NorESMhub/BLOM.git
-fxtag = v1.12.22
+fxtag = v1.12.23
 fxrequired = ToplevelRequired
 fxDONOTUSEurl = https://github.com/NorESMhub/BLOM.git
 
diff --git a/ChangeLog b/ChangeLog
index 4cb35256..45c9071b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,52 @@
 ==============================================================
 
+Tag name: noresm3_0_beta10
+Date: 
+One-line Summary: 
+
+Details:
+ - Update BLOM to v1.12.23
+   - Provide historical atmospheric N2O concentrations
+
+Component tags used in this tag:
+
+ - parallelio : NCAR/ParallelIO             : pio2_6_2
+ - ccs_config : NorESMhub/ccs_config_noresm : ccs_config_noresm0.0.55
+ - cime       : NorESMhub/cime              : cime6.1.143_noresm_v1
+ - share      : NorESMHub/NorESM_share      : share1.1.9_noresm_v0
+ - blom       : NorESMhub/BLOM              : v1.12.23
+ - cam        : NorESMhub/CAM               : noresm3_0_021_cam6_4_121
+ - cdeps      : NorESMhub/CDEPS             : cdeps1.0.83_noresm_v2
+ - cice6      : NorESMhub/NorESM_CICE       : noresm_cice6_6_1_20251129_v1
+ - cism       : NorESMhub/CISM-wrapper      : cismwrap_2_2_007_noresm_v1
+ - clm        : NorESMhub/CTSM              : ctsm5.4.002_noresm_v1
+    - fates   : NorESMhub/fates             : sci.1.88.6_api.42.0.0_nor_sci1_api1
+ - cmeps      : NorESMhub/CMEPS             : cmeps1.1.23_noresm_v1
+ - mosart     : NorESMhub/MOSART            : mosart1.1.12_noresm_v1
+ - ww3        : NorESMhub/WW3_interface     : ww3_interface_noresm0.0.18
+ - pycect     : NCAR/PyCECT                 : 3.2.2
+
+Bugs fixed:
+
+Describe any changes made to scripts/build system: NA
+
+Describe any substantial timing or memory changes: NA
+
+Code merged by: 
+
+Code reviewed by: 
+
+Summary of pre-tag testing:
+ - prealpha_noresm :
+ - aux_blom_noresm :
+ - aux_cam_noresm :
+ - aux_clm_noresm :
+
+
+Summarize any change to answers:
+
+==============================================================
+
 Tag name: noresm3_0_beta09
 Date: 17.12.2025
 One-line Summary: Update to CTSM5.4 blom, namelist update
@@ -52,8 +99,6 @@ Summary of pre-tag testing:
 
 Summarize any change to answers:
 
-
-
 ==============================================================
 
 Tag name: noresm3_0_beta08
diff --git a/components/blom b/components/blom
index 356b1177..5209a806 160000
--- a/components/blom
+++ b/components/blom
@@ -1 +1 @@
-Subproject commit 356b1177d15bdcb6d64a1e4290a51735c307bdc2
+Subproject commit 5209a8068bcfcc6afadc77e408608a7686ef6e1b