Release of ARMI 0.5.1

Release Date: 2025-03-14

This release was all about QA documentation. We open-sourced our QA documentation, even our software requirements. There were also several bug fixes.

New Features

• Move instead of copy files from TemporaryDirectoryChanger. PR#2022
• Creating the armi.testing module, to share ARMI testing tools. PR#2028
• Using inner diameter for sorting components when outer diameter is identical. PR#1882
• Invoking component.material.density() does not log an expensive stack tracefor fluids. PR#2075
• ARMI will now try to use the /tmp/ directory for its temp files, on Linux and MacOS. PR#2092

API Changes

• Removing Database3 from the API, use Database. PR#2052

Bug Fixes

• Fixing check for jagged arrays during _writeParams. PR#2051
• Fixing BP-section ignoring tool in PassiveDBLoadPlugin. PR#2055
• Making sure SFPs have spatial grids. PR#2082
• Fixing number densities when custom isotopics are combined with Fluid components. PR#2071
• Fixing scaling of volume-integrated parameters on edge assemblies. PR#2060
• Fixing strictness of HexGrid rough equality check. PR#2058
• Fixing treatment of symmetry factors when calculating component flux and reaction rates. PR#2068

Quality Work

• Open-Sourcing the ARMI requirements. PR#2076
• Significant revamp of the ARMI requirements. PR#2074
• Adding PDF versions of the ARMI docs. PR#2072
• Update docs build to occur with python 3.13 and updated docs dependencies. PR#2050
• Removing silent overwrite of shutil.copy. PR#2081