> ## 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 — December 8–19, 2025

> New composite beam and multi-occupancy calculators, Atlas Tube hub enhancements, and major project management upgrades.

## What's New & Improvements

### **Engineering Calculators:**

* [**Project Defaults**](https://calcs.com/docs/calculations/us/home) **🇺🇸:** Added IRC 2024 support with ASCE 7-22 load combinations, updated live load tables, and new tornado design capabilities.
* [**Wood Beam**](https://calcs.com/calculators/timberBeamASD) **🇺🇸:** Added minimum width and depth filters in the member selector to provide better design control.
* [**Spread Footings**](https://calcs.com/calculators/foundationsSpreadFootingUSAACI318-19) **🇺🇸:** Clarified soil bearing stress descriptions to explicitly state service (ASD) load checks.
* [**Steel Lintel (Angle)**](https://calcs.com/calculators/masonrySupportSteelBeamAS4100-2020) **🇦🇺:** Added unrestrained deflection analysis for loose brick veneer lintels using effective moment of inertia calculations. This addresses scenarios where angles bend about principal axes rather than geometric axes.

### [Atlas Tube Connection Hub](https://www.atlastube.com/hss-connections-hub/)

* [**HSS Trusses**](https://www.atlastube.com/hss-connections-hub/) **🇺🇸**: Added truss type connection evaluation for single-branch members with auto-detection capabilities.
* [**WF-to-HSS Moment Connections**](https://www.atlastube.com/hss-connections-hub/) **🇺🇸 🇨🇦**: Fixed required axial force calculations in cut-out and diaphragm plates to use full demand rather than half demand. Also introduced direct factored load input options to bypass load combination calculations when factored loads are known.
* [**HSS-to-HSS Shear Connections**](https://www.atlastube.com/hss-connections-hub/) **🇺🇸 🇨🇦**: Implemented direct factored load input options and corrected gross area calculations in shear-block cases by removing unnecessary bolt-hole deductions.
* [**HSS Splices**](https://www.atlastube.com/hss-connections-hub/) **🇨🇦**: Standardized variable names and symbols, and migrated bolt notation from tension to shear for improved clarity. Also corrected spacing between shurikens on the corners of rectangular/square columns.
* [**HSS-to-HSS/WF Moment Connections**](https://www.atlastube.com/hss-connections-hub/) **🇨🇦**: Added block shear cases 4, 5 & 6 for flange plates and fixed HSS column capacity checks.
* [**Brace to Column**](https://www.atlastube.com/hss-connections-hub/) **🇨🇦**: Added CSA S16:19 brace capacity checks including yielding, rupture, and block shear.

### [Calcs Builder](https://calcs.com/builder)

**Significant workflow upgrades**, including the rollout of project assignments and a new support interface. Other enhancements include:

* **Combine Mode & Review**
  * Removed template code restrictions, allowing you to copy widgets between any sheet templates.
  * Added search functionality and pagination to the template browser.
  * Enhanced the comment system to aggregate feedback across template versions by code.

## New Help Articles

* [**US One Way Slab Basic Guide 🇺🇸**](https://calcs.com/docs/calculations/us/us_one_way_slab)\
  How to design a one way slab in Calcs.com
* [**How to Force Update a Project**](https://calcs.com/docs/learn_calcs/advanced_tricks/how-to-force-update-a-project#how-to-force-update-a-project)\
  Learn how to update existing projects to the latest calculation versions.