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stdout falsely reports that a material has both material modifications and custom isotopics

Status: Open.

#2376 In terrapower/armi;

· keckler opened on Dec 7, 2025

HexBlock.getDuctIP / getDuctOP don't work for depeltable ducts

enhancementNew feature or requestNew feature or request

Status: Open.

#2370 In terrapower/armi;

· drewj-tp opened on Nov 24, 2025

Reinstate ruff rule D404

cleanupCode/comment cleanup: Low PriorityCode/comment cleanup: Low Priority

good first issueGood for newcomersGood for newcomers

Status: Open.

#2368 In terrapower/armi;

· john-science opened on Nov 19, 2025

Axial expansion fails if you have more than one pure fluid block

feature requestSmaller user requestSmaller user request

Status: Open.

#2362 In terrapower/armi;

· drewj-tp opened on Nov 12, 2025

Redesign ARMI Materials to be based on YAML data files

architectureIssues related to big picture system architectureIssues related to big picture system architecture

complexExpected to be a complex issueExpected to be a complex issue

Status: Open.

#2353 In terrapower/armi;

· john-science opened on Nov 5, 2025

ARMI should be better at helping people identify what is a Pin

architectureIssues related to big picture system architectureIssues related to big picture system architecture

Status: Open.

#2352 In terrapower/armi;

· john-science opened on Nov 5, 2025

Store load queue assemblies on DB

complexExpected to be a complex issueExpected to be a complex issue

feature requestSmaller user requestSmaller user request

Status: Open.

#2349 In terrapower/armi;

· john-science opened on Nov 4, 2025

Write inputs for cases in parallel

feature requestSmaller user requestSmaller user request

low priorityStyle points and non-featuresStyle points and non-features

optimizationrelated to measuring and speeding up the code or reducing memoryrelated to measuring and speeding up the code or reducing memory

Status: Open.

#2338 In terrapower/armi;

· drewj-tp opened on Oct 27, 2025

User manual missing information for a snapshot run

documentationImprovements or additions to documentationImprovements or additions to documentation

feature requestSmaller user requestSmaller user request

Status: Open.

#2330 In terrapower/armi;

· alexhjames opened on Oct 20, 2025

Separate tutorial notebook from history tracker tests

testingRelated to testsRelated to tests

Status: Open.

#2319 In terrapower/armi;

· drewj-tp opened on Oct 6, 2025

Use an integer to determine the pin indices offset

enhancementNew feature or requestNew feature or request

Status: Open.

#2304 In terrapower/armi;

· drewj-tp opened on Sep 24, 2025

Add option to turn off certain docs sections in the PDF

complexExpected to be a complex issueExpected to be a complex issue

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Open.

#2288 In terrapower/armi;

· john-science opened on Sep 19, 2025