ctsm5.4.033

[CTSM Gatekeeper]

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Tag name: ctsm5.4.033
Originator(s): glemieux (Gregory Lemieux, LBNL, glem...@lbl.gov)
Date: Fri Apr 17 10:39:02 AM MDT 2026
One-line Summary: Update fates tag with missing land use data check fix

Purpose and description of changes
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This update brings in fates-side changes which allow for checking of
fates land use data that uses either NaN or non-nan fill values. This
also updates the fates land use data tool tag which captures the
associated netcdf write encoding changes to ensure that the land use
data will use non-nan values consistent with the latest default datasets.


Bugs fixed
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List of CTSM issues fixed (include CTSM Issue # and description) [one per line]:
Resolves #3789

Notes of particular relevance for developers:
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NOTE: Be sure to review the steps in README.CHECKLIST.master_tags as well as the coding style in the Developers Guide

Changes to tests or testing:
- Removes the FatesColdLUH testmods from the expected failures list

Contributors:

Testing summary:
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regular tests (aux_clm: https://github.com/ESCOMP/CTSM/wiki/System-Testing-Guide#pre-merge-system-testing):

derecho ----- OK
izumi ------- OK

fates tests: (give name of baseline if different from CTSM tagname, normally fates baselines are fates-<FATES TAG>-<CTSM TAG>)
derecho ----- OK
izumi ------- OK


Answer changes
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Changes answers relative to baseline: B4B, except for FATES

Other details
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List any git submodules updated (cime, rtm, mosart, cism, fates, etc.):
fates: sci.1.92.0_api.44.0.0 --> sci.1.92.1_api.44.1.0
fates/tools/landusedata: v0.1.1 --> v0.4.1

Pull Requests that document the changes (include PR ids):
(https://github.com/ESCOMP/ctsm/pull)

https://github.com/ESCOMP/CTSM/pull/3926
https://github.com/NGEET/fates/pull/1555
https://github.com/NGEET/tools-fates-landusedata/pull/41

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