===================== Development Changelog ===================== .. changelog:: :version: pending :released: pending .. change:: :tags: feature :pullreq: 1503 **Date**: 2026-04-27 Title: Add four upgrades to the SDR Description: Add four upgrades to the SDR. These are upgrade IDs 29-32 in ResStock 2025 Release 1. Assignees: Andrew Parker .. change:: :tags: workflow, options, hpxml :pullreq: 1460 **Date**: 2025-10-28 Title: Move BuildResidentialHPXML measure to option-based arguments Description: Refactors ResStock to use the new BuildResidentialHPXML measure, which now has ~100 options instead of ~600 detailed properties as arguments. Also moves much of the ResStock special sauce around configuring the HPXML models into the ResStockArgumentsPostHPXML measure. The options_lookup.tsv file is now significantly simpler. Assignees: Scott Horowitz .. change:: :tags: feature, hvac :pullreq: 1516 **Date**: 2025-10-24 Title: Clean up baseline HVAC options Description: Continuing from PR 1503, cleaned up baseline HVAC options by switching to use SEER2 for CAC and SEER2/HSPF2 for ASHP. Some HVAC option efficiencies were modified to better align with OS-HPXML default relationships. Assignees: Lixi Liu, Scott Horowitz .. change:: :tags: feature, hvac :pullreq: 1503 **Date**: 2025-10-07 Title: Clean up SDR yaml; tweak a few HVAC option Description: Removes unused options/anchors from the SDR yaml. Removes unused HVAC options from options_lookup.tsv. Proposes a few changes to HVAC options to align with proposed OS-HPXML options. Assignees: Scott Horowitz .. change:: :tags: documentation, technical reference guide :pullreq: 1493, 1466, 1460 **Date**: 2025-09-24 Title: Update the documentation Description: Create a new script for creating options/arguments table tex files corresponding to each Parameter. This will help to automate creating many of the tables in the ResStock Technical Reference Documentation. Assignees: Joe Robertson .. change:: :tags: software, openstudio, feature :pullreq: 1466 **Date**: 2025-09-19 Title: Improved options/modeling Description: Updates dishwasher, clothes washer, and clothes dryer options per ANSI/RESNET/ICC 301-2019 Addendum A. Replaces interior shading coefficients with physical shading descriptions. Updates water heater options to be UEF-based and reflective of AHRI products. Updates window options to separate out storm windows from base window U/SHGC; uses OS-HPXML storm window models. Updates shielding for SFA/MF units to match OS-HPXML defaults (well-shielded). Updates plug load sensible/latent fractions to match OS-HPXML defaults (from ANSI/RESNET/ICC 301). Updates CMU assembly R-values to reflect average of hollow & concrete-filled. Disables daylight saving time for Hawaii counties to match OS-HPXML defaults. Updates duct leakage to be 50% supply/50% return to match OS-HPXML defaults (from ANSI/RESNET/ICC 301). Updates ceiling fan options from assuming 1 ceiling fan in a home to using the OS-HPXML default (NumberofBedrooms + 1; from ANSI/RESNET/ICC 301). Updates SDR HPWH options to be UEF=3.5 and UEF=4.0. HPWH sizing logic moved to OS-HPXML. Assignees: Scott Horowitz .. change:: :tags: software, openstudio, feature, hvac :pullreq: 1406 **Date**: 2025-09-05 Title: Latest OS-HPXML Description: Update to OpenStudio-HPXML 1.10/OpenStudio 3.10/EnergyPlus 25.1. Replace use of energyPlusOutputRequests with modelOutputRequests in reporting measures. Update HVAC models per RESNET HVAC addendum, including allowing detailed performance data for 1 and 2 -speed models, as well as requiring nominal inputs for detailed performance data approach. Inform whether the clothes dryer appliance is vented or ventless using new optional drying method argument. OpenStudio-HPXML: `pull request 1879 `_, `pull request 1939 `_, `pull request 2028 `_ Assignees: Joe Robertson, Scott Horowitz .. change:: :tags: software, postprocessing :pullreq: 1483 **Date**: 2025-09-09 Title: Ensure deterministic order in pub results by sorting Description: The order of rows in the published results CSV files are now always sorted by building_id. Assignees: Rajendra Adhikari