Noresm2 - change BLOM tag to v1.4.2 (#547)

* Add info about noresm2.0.8 in README.md file

* Change BLOM tag to v1.4.2

Externals.cfg

@@ -51,7 +51,7 @@ externals = Externals_POP.cfg
 required = False
 
 [blom]
-tag = v1.3.0
+tag = v1.4.2
 protocol = git
 repo_url = https://github.com/NorESMhub/BLOM
 local_path = components/blom

README.md

@@ -11,6 +11,11 @@ NorESM2-LM and NorESM2-MM CMIP6 simulations
 The NorESM-2.0 documentation: https://noresm-docs.readthedocs.io/en/noresm2/
 
 ## Releases in noresm2
+- [release-noresm2.0.8](https://github.com/NorESMhub/NorESM/releases/tag/release-noresm2.0.8)
+    - Release of NorESM2.0.8, August 2024
+    - Available to reproduce CMIP6 results of NorESM2
+    - Updated CIME with new tool chain modules on Betzy
+
 - [release-noresm2.0.7](https://github.com/NorESMhub/NorESM/releases/tag/release-noresm2.0.7)
     - Release of NorESM2.0.7, 15th of November 2023
     - Available to reproduce CMIP6 results of NorESM2