> ## Documentation Index
> Fetch the complete documentation index at: https://calcs.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# 🚀 Calcs.com Release Notes

> Browse all Calcs.com release notes by date.

Stay up to date with the latest changes to Calcs.com. Below is a timeline of all release notes.

<Update label="June 16–30, 2026" tags={["Engineering", "Atlas Tube", "Builder", "US", "CA", "AU"]} description>
  **Engineering Calculators** Concrete Beam gained full torsional strength design with combined shear–torsion checks 🇺🇸, and Concrete-Filled Column received a load-double-counting fix and dual-axis flexural buckling for rectangular HSS 🇺🇸. Wind Loads (ASCE 7-22 and 7-16) now compute the gust effect factor for rigid buildings and add tornado MWFRS pressures 🇺🇸, a new Wind Loads (NBCC 2020) calculator launched alongside NBCC 2020/2025 support in Project Defaults and a new Seismic Analysis (NBCC 2020) update 🇨🇦, and Steel Beam (AS 4100:2020) now warns when a linked section is not a non-composite I-section 🇦🇺.

  **Atlas Tube Connection Hub** Internal Double Gusset is out of beta with broader HSS material coverage 🇺🇸, HSS Beam-to-HSS Moment Field-Welded now supports two-sided X-connections with axial checks, and HSS-to-HSS Splice Column adds bolt and weld shear limit states for end-plate connections 🇺🇸. External Double Gusset (beta) completed its angle bolted-connection limit states, and Canadian moment and base plate connections now label demands as "Factored" for clarity 🇨🇦.

  **Calcs Builder & Platform** Combine Mode gained a new JSON merge view for line- and field-level conflict resolution with accept/keep controls, and its Widgets view now supports field-level accept across all attribute types with an accurate resolution counter.

  [Read full release notes](/release_notes/2026-06-16_to_2026-06-30)
</Update>

<Update label="June 1–15, 2026" tags={["Engineering", "Atlas Tube", "Platform", "US", "CA"]} description>
  **Engineering Calculators** Concrete Beam now supports varying stirrup spacing across support and mid-span zones for more accurate shear reinforcement design 🇺🇸, and Combined Footing accepts separate bar sizes for top and bottom reinforcement in both directions for more precise development length calculations 🇺🇸.

  **Atlas Tube Connection Hub** Steel Connection Column Bracing extends Internal Double Gusset coverage to beam-to-gusset, beam capacity, and transverse shear limit states, and HSS Beam-to-HSS Moment now supports two-sided beam inputs with combined demand calculations 🇺🇸. HSS-to-HSS Splice weld axial stress, the CSA S16:19 weld resistance factor across 24 presets, end plate thickness checks for Concrete-Filled Moment connections, and steel connection upgrade mappings all received corrections 🇺🇸 🇨🇦, and WF-to-HSS Moment 3D diagrams were refreshed with grouped bolt labels and improved weld visibility 🇺🇸.

  **Calcs Builder & Platform** Combine Mode gained comprehensive analytics across Editor, Review, and Combine workflows to track navigation, widget actions, and edit patterns.

  [Read full release notes](/release_notes/2026-06-01_to_2026-06-15)
</Update>

<Update label="May 16–31, 2026" tags={["Engineering", "Atlas Tube", "Platform", "US", "CA"]} description>
  **Engineering Calculators** Wood Shear Wall designs can now be switched between NDS 2018 and NDS 2024 in a single click 🇺🇸, and Masonry Shear Wall LRFD adds pier-based reinforcement distribution for walls with openings 🇺🇸. Timber Bolt and Timber Beam received accuracy fixes for the k1 factor and live load overrides 🇺🇸.

  **Atlas Tube Connection Hub** Added gapped rectangular KT-connection support for HSS Truss, a new Internal Double Gusset brace connection, and a round HSS column option for Concrete Filled Moment connections 🇺🇸. HSS-to-HSS Shear connections gained corrected resistance factors 🇨🇦, new field-welded exterior plate flexural limit states 🇺🇸 🇨🇦, and axial load checks for End Plate-Face Plate configurations 🇺🇸. WF-to-HSS Moment and Shear connections received tensile rupture checks, 3D diagram support, and round column geometry, and HSS Truss diagrams now display weld symbols on each branch 🇺🇸.

  **Calcs Builder & Platform** The Partner API now exposes 12 US IBC building-code calculators through developer.calcs.com with structured field discovery 🇺🇸. The Standards viewer only shows Standards Australia copyright notices for SA content, preventing confusion when viewing AISC standards.

  [Read full release notes](/release_notes/2026-05-16_to_2026-05-31)
</Update>

<Update label="May 1–15, 2026" tags={["Engineering", "Atlas Tube", "Builder", "Platform", "US", "CA", "AU"]} description>
  **Engineering Calculators** Launched the new Combined Footing calculator with flexural design at column faces 🇺🇸, and rolled out the segmented pier method for Masonry Shear Wall analysis 🇺🇸. Canadian timber and steel beam diagrams now match the selected load combination correctly 🇨🇦.

  **Atlas Tube Connection Hub** HSS Truss connections gained 10 new contextual classification images that appear automatically based on branch and load configuration 🇺🇸. Improvements include corrected prying action, slip-critical end-plate options, more accurate round end-plate diagrams, broader preset visibility for brace-to-column connections, and clearer single plate placement in gusset diagrams 🇺🇸 🇨🇦.

  **Calcs Builder & Platform** Builder templates now support status tracking, links to GitHub and project management tools, and a one-click preset duplication option, with a Compare and Merge shortcut for resolving staleness. The Organization settings page was redesigned with a clean tabbed interface, and Combine Mode shows real widget previews instead of generic placeholders.

  [Read full release notes](/release_notes/2026-05-01_to_2026-05-15)
</Update>

<Update label="April 15–30, 2026" tags={["Engineering", "Atlas Tube", "Platform", "US", "AU"]} description>
  **Engineering Calculators** Added comprehensive one-way and two-way shear calculations to the Combined Footing Calculator (coming soon) 🇺🇸, and introduced segmented-method shear wall calculations per TMS 402/602-22 🇺🇸. Australian updates include a cantilever moment factor override for Steel Beam AS4100-2020 🇦🇺 and a new NeXTimber GL13C cambered catalogue 🇦🇺. Foundation template references and guidance descriptions also improved 🇺🇸.

  **Atlas Tube Connection Hub** Launched a new Cast Connex template with High-Strength and Universal Pin Connector presets 🇺🇸. Dynamic diagrams were enhanced across HSS Truss, Bolted Truss, and WF-to-HSS Moment connections 🇺🇸. HSS Splice, WF-to-HSS Moment, and Bracing templates received shear and tensile rupture improvements, and steel connection templates expanded with Max R load combination analysis and two-sided through-plate support 🇺🇸.

  **Platform Improvements** Added bottom flange welds and web plate welds for 3D diagram compatibility in moment connections.

  [Read full release notes](/release_notes/2026-04-15_to_2026-04-30)
</Update>

<Update label="April 1–15, 2026" tags={["Engineering","Atlas Tube","Platform","US","CA","AU"]} description>
  **Engineering Calculators**
  New combined footing prototype, spread footing column offsets, segmented masonry shear wall analysis, composite beam stud spacing tables, and NeXTimber GL13 sections in the timber\_v2 shared table for Australian timber design 🇺🇸 🇦🇺.

  **Atlas Tube Connection Hub**
  Bolted truss connections, expanded HSS truss validation, overlapped round KT shear, column splice shear and axial enhancements, moment and shear connection axial/seismic updates, and richer dynamic diagrams 🇺🇸 🇨🇦.

  **Platform**
  Direct dashboard landing after login, Builder image widget labels with thumbnails, and more reliable preset saves.

  [Read full release notes](/release_notes/2026-04-01_to_2026-04-15)
</Update>

<Update label="March 16–31, 2026" tags={["Engineering","Atlas Tube","Platform","US","CA","AU"]} description>
  **Engineering Calculators**
  US retaining wall templates move to IBC 2024 with ASCE 7-22 and TMS updates; wind and snow load tools gain parapet, drift, and map fixes. Canadian steel and wood templates and the timber section database see targeted improvements 🇺🇸 🇨🇦 🇦🇺.

  **Atlas Tube Connection Hub**
  Major additions include axial and seismic limit states across WF-to-HSS, HSS-to-HSS, and truss connections, plus diagram and geometry improvements for bracing and shear templates 🇺🇸 🇨🇦.

  **Platform**
  Organization settings respect admin roles; US project defaults cite IBC 2024 and ASCE 7-22 alongside prior editions.

  [Read full release notes](/release_notes/2026-03-16_to_2026-03-31)
</Update>

<Update label="March 1–15, 2026" tags={["Engineering","Atlas Tube","Builder","Platform","US","CA"]} description>
  **Engineering Calculators**
  Major updates include the launch of Masonry Gravity Wall LRFD (TMS 402/602-22) and the ASCE 7-22 Directional Procedure for MWFRS. Improvements to environmental loads feature corrected ASCE 7-22 Snow Drift width limits and new Parapet wind pressure calculations. US wood and concrete templates have been further standardized to IBC 2024 and AISC 16th Ed references.

  **Atlas Tube Connection Hub**
  Significant expansion of the Extended Configuration for shear connections now supports single-row bolt patterns and custom spacing 🇺🇸 🇨🇦. New specialized templates launched for HSS Round X-Connections and HSS-to-WF OMF Seismic frames. Axial load support has been extended to HSS-to-WF end plates, and Shuriken bolt validation was improved across all moment templates.

  **Calcs Builder & Platform**
  The platform received a major Homepage Redesign using modern UI components and a new Standalone Chat interface. High-end additions include an interactive 3D Structural Model renderer for AI-generated designs and improved dependency tracking for template preset management.

  [Read full release notes](/release_notes/2026-03-01_to_2026-03-15)
</Update>

<Update label="February 14–28, 2026" tags={["Engineering","Atlas Tube","Builder","Platform","US","CA"]} description>
  **Engineering Calculators** Major updates include full IBC 2024 / NDS 2024 support for all US wood templates 🇺🇸 and comprehensive ASCE 7-16/22 roof overhang wind load support. New capabilities launched for Wind C\&C Individual Areas and Masonry Gravity Walls updated to TMS 402-22.

  **Atlas Tube Connection Hub** Significant expansion of Axial Load support and combined demand calculations across HSS and WF connections 🇺🇸 🇨🇦. New features include HSS Truss Type connection limit states, Extended Configurations for Canadian shear connections 🇨🇦, and dynamic top-view diagrams with weld symbols for US shear connections 🇺🇸.

  **Calcs Builder & Platform** User experience improvements include Rich Text support for review comments, streamlined Timber Column summaries, and fixed GIS widget rendering for older IRC editions. Review Mode also received usability upgrades with scrollable fields and enhanced widget visibility indicators.

  [Read full release notes](/release_notes/2026-02-14_to_2026-02-28)
</Update>

<Update label="February 1–13, 2026" tags={["Engineering","Atlas Tube","Builder","Platform","US","CA"]} description>
  **Engineering Calculators** Added support for IBC 2024 across concrete and wood templates 🇺🇸, introduced NDS 2024 for wood beams 🇺🇸, and launched a new Occupant Load (IBC 2021) calculator. Improvements include enhanced uplift self-weight options for Pier Footings, interaction metrics for Masonry Shear Walls, and expanded ASCE 7-22 Wind & Snow load details 🇺🇸.

  **Atlas Tube Connection Hub** Major updates include Extended Configurations for HSS-to-HSS Shear connections 🇺🇸, adjustable bolt spacing for HSS Splices 🇺🇸 🇨🇦, and corrected shear area capacities for HSS Moment connections 🇨🇦. Brace-to-Beam templates now feature preliminary HSS beam support and updated AISC 360-22 buckling checks 🇺🇸.

  **Calcs Builder & Platform** User experience upgrades feature sticky sidebar visibility and auto-focusing comment boxes. Organization admins can now manage Feature Preview Tiers, and custom calculators now include professional Calcs.com branding on all PDF exports

  [Read full release notes](/release_notes/2026-02-01_to_2026-02-13)
</Update>

<Update label="January 16–30, 2026" tags={["Engineering","Atlas Tube","Builder","Platform","US","CA"]} description>
  **Engineering Calculators** Launched the **Steel Composite Beam (LRFD) 🇺🇸 (BETA)** and upgraded Steel Beam & Base Plate templates to **AISC 360-22 🇺🇸**. Also added automated wind/tornado speeds to Project Defaults 🇺🇸.

  **Atlas Tube Connection Hub** Major features include Built-Up Tee Support 🇨🇦, a new Bolted Connection preset for Column Bracing 🇨🇦, and configurable bolt spacing for HSS Splices 🇺🇸 🇨🇦.

  **Calcs Builder & Platform** Review Mode now features character-level equation highlighting.

  **Updates & Fixes** Implemented member-end distance reduction logic for Atlas Tube HSS connections 🇺🇸 🇨🇦 and corrected load combinations for Canadian projects 🇨🇦.

  [Read full release notes](/release_notes/2026-01-16_to_2026-01-30)
</Update>

<Update label="January 1–15, 2025" tags={["Engineering","Atlas Tube","Builder","Platform","US","CA"]} description>
  **Engineering Calculators** Updated Steel Beam calculators to AISC 360-22 🇺🇸

  **Atlas Tube Connection Hub** Implemented member-end distance capacity reductions per AISC 360-22 🇺🇸, added axial-moment interaction checks for HSS connections 🇺🇸, and introduced adjustable bolt spacing and built-up tee support 🇺🇸 🇨🇦.

  **Calcs Builder** Enhanced the editing experience with autocomplete, and an upgraded sidebar. Preview modes now explicitly display active standards and unit systems.

  **Platform Improvements** Rolled out a regional toggle for the Details Library 🇺🇸 🇨🇦, a dedicated support flow for Atlas Tube users, and enhanced safeguards for template publishing.

  [Read full release notes](/release_notes/2026-01-01_to_2026-01-15)
</Update>

<Update label="December 22–31, 2025 🎉 Ending 2025" tags={["Engineering","Atlas Tube","Builder","Platform","US","CA","CBC"]} description>
  **Engineering Calculators** Added SFRS Class H support for Seismic Analysis 🇺🇸 and introduced CBC 2025 support in [Project Defaults 🇺🇸](https://calcs.com/docs/calculations/us/home).

  **Atlas Tube Connection Hub** Expanded direct factored load inputs across multiple connection types. Added comprehensive axial load handling for HSS-to-WF Moment Connections 🇺🇸 🇨🇦, TKYX connection classification for HSS Trusses 🇺🇸, built-up tee capability for WF-to-HSS Shear WT Connections 🇺🇸, Diaphragm II support for WF-to-HSS Moment Connections 🇨🇦, and enhanced simultaneous moment analysis for HSS-to-HSS Moment Connections 🇨🇦.

  **Calcs Builder** Combine Mode & Review now allows widget copying between any templates with search and pagination. Preview Mode includes utilization checks and improved UI. Enhanced visual design and upgraded AI Chat Infrastructure for faster, more reliable performance.

  **New Help Articles**

  * Automatic Unbalanced Loads / Live Load Patterning 🇺🇸
  * Typical Formula References
  * Steel Base Plate (LRFD) 🇺🇸
  * Wind Loads (ASCE 7-22) - Components and Cladding Overview 🇺🇸
  * Segmented vs. Perforated Shear Walls 🇺🇸

  [Read full release notes](/release_notes/2025-12-22_to_2025-12-31)
</Update>

<Update label="December 8 - 19, 2025" tags={["Engineering","Atlas Tube","Builder","US","CA","AU"]} description>
  **Engineering Calculators** Added support for IRC 2024 / ASCE 7-22 in [Project Defaults 🇺🇸](https://calcs.com/docs/calculations/us/home), improved Wood Beam member selection filters 🇺🇸, clarified soil bearing checks in Spread Footings 🇺🇸, and implemented unrestrained deflection analysis for Steel Lintels 🇦🇺.

  **Atlas Tube Connection Hub** Improvements include new CSA S16:19 checks for Brace to Column connections 🇨🇦, single-branch auto-detection for HSS Trusses 🇺🇸, and the addition of direct factored load inputs for both HSS-to-HSS Shear and WF-to-HSS Moment connections 🇺🇸 🇨🇦.

  **Calcs Builder** Significant workflow upgrades include the rollout of project assignments and a new support interface. Additionally, Combine Mode has been enhanced to allow widget copying between any sheet templates, removing previous code restrictions.

  **New Help Articles**

  * US One Way Slab Basic Guide 🇺🇸
  * How to Force Update a Project

  [Read full release notes](/release_notes/2025-12-08_to_2025-12-19)
</Update>

<Update label="November 24–December 5, 2025" tags={["Engineering","Atlas Tube","Builder","US","CA","AU","NZ","IBC"]} description>
  **Engineering Calculators**\
  Added support for **IBC 2024 / ASCE 7-22 🇺🇸**, restored steel beam bracing warnings, improved Wood Beam print layouts 🇺🇸, and fixed impermeable structure logic in AS/NZS 1170.2 wind loads 🇦🇺 🇳🇿.

  **Atlas Tube Connection Hub**\
  Improvements include corrected WF column capacity checks 🇨🇦, updated limit states for End Plate–Side Angles 🇨🇦, unified weld calculations for HSS Trusses 🇺🇸, and standardized Shuriken bolt spacing 🇺🇸 🇨🇦.

  **Calcs Builder**\
  Previously internal-only features, including the **new Builder layout** and **Review Mode**, are now available to all paid subscribers with Builder access. The sidebar is smarter and navigation is faster.

  **New Help Articles**

  * Tornado Loads (ASCE 7-22) 🇺🇸
  * Upgrade Your Custom Calculator to Manage Loads (LRFD & ASD)
  * Linking Design Calculators to Truss & Portal Frame Analysis

  [Read full release notes](/release_notes/2025-11-24_to_2025-12-05)
</Update>

<Update label="November 10–21, 2025" tags={["Engineering","Atlas Tube","Platform","US","CA"]} description>
  **Engineering & Atlas Tube Connection Hub** We’ve rolled out improvements to HSS Splices (bolt hole strength corrections), added Shuriken bolt clearance checks, and standardized round HSS sections to Grade C. Additionally, new load combinations have been added across 15 calculators.

  **Platform Improvements**

  * **Details Library:** You can now filter details by region with a new **US/Canada toggle**.

  **New Help Articles**

  * Understanding Gross vs Net Soil Bearing Pressure
  * How to Analyze Custom Trusses
  * Project Defaults Cheat Sheet 🇺🇸

  [Read full release notes](/release_notes/2025-11-10_to_2025-11-21)
</Update>