> ## 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: October 16–31, 2026

> Accuracy corrections across Atlas Tube HSS connections, updated Snow Loads drift and unbalanced formulas, autosave in reports, and starred projects on the Home page.

## Engineering Calculators

### 🛠️ Improvements & Fixes

* [**Snow Loads (ASCE 7-22)**](https://calcs.com/calculators/loadsSnowASCE7-22) and [**Snow Loads (ASCE 7-16)**](https://calcs.com/calculators/loadsSnowASCE7-16) 🇺🇸: Corrected unbalanced leeward load, balanced snow height, and drift totals to exclude the rain-on-snow surcharge per Section 7.10. Unbalanced and drift results may change.
* [**Steel Base Plate (LRFD)**](https://calcs.com/calculators/steelBasePlateLRFD) 🇺🇸: Restricted column selection to I-shaped sections (W, S, M, HP). HSS, round HSS, and pipe columns are no longer available.
* [**Wind Loads (ASCE 7-22)**](https://calcs.com/calculators/loadsWindCnCASCE7-22) 🇺🇸: Fixed an issue where Tornado Loads and Effective Area options could be enabled at the same time.
* **Project Defaults** 🇨🇦: NBCC 2020 and 2025 short-term serviceability combinations now exclude dead load by default, with an option to include it. Short-term deflections in linked calculations may decrease.
* **SmartLam GL19C & GL19S Glulam** 🇦🇺: Corrected GL19C to use glulam instead of sawn timber properties, fixing unconservative φ, k₉, and f't values for multi-member bending. Added 14 new GL19S sections.
* **Beam Free-Body Diagrams**: Fixed continuous spring supports appearing bunched together in imperial units.

***

## Atlas Tube Connection Hub

### 🚀 New Features

* [**HSS to HSS Splice Connection (AISC 360-22 & CSA S16:19)**](https://www.atlastube.com/hss-connections-hub/) 🇺🇸 🇨🇦: Added optional AISC 341-22 seismic design checks for the Bolted With Welded Gusset splice. Also corrected ASTM A500 Grade C yield strength to 50 ksi, raising column capacities by up to 8.7%, and fixed Shuriken corner clearance for 5/8" and 3/4" bolts, which was passing unconservative designs.

### 🛠️ Improvements & Fixes

* [**HSS Beam to HSS Girder Shear Connection (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) 🇺🇸: Corrected flexural capacity for the Hidden shear cut plate and coped beam sections, now about 33% lower using the Section F12 yield moment. Also added coped beam flexural checks, erection fill support, and per-bolt effective strength, and updated weld and through-bolt bearing checks. Existing Hidden, Coped Beam, and Through Bolt & Exterior Plates sheets should be re-checked.
* [**HSS to HSS Shear Connection (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) 🇺🇸: Fixed an incorrect ASD safety factor on weld shear strength under axial loads, and corrected the Field-Welded Exterior Plate flat-width warning.
* [**HSS Girt to HSS Connection (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) 🇺🇸: The Unstiffened Seated connection now checks each angle and plate for the largest tension and compression across load combinations, evaluates weld stresses per combination, and adds a third block shear case.
* [**Chevron Bracing (AISC 360-22 & CSA S16:19)**](https://www.atlastube.com/hss-connections-hub/) 🇺🇸 🇨🇦: Temporarily disabled the Independent Brace Loads option until unbalanced-load limit states are added. All sheets now solve as Equal and Opposite.
* [**HSS Steel Base Plate (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) 🇺🇸: Restricted to square and rectangular HSS columns until full round column support is added. Existing round HSS sheets will stop solving and should be re-checked.
* [**HSS Truss Connection**](https://www.atlastube.com/hss-connections-hub/) 🇺🇸 🇨🇦: Updated diagrams, and added governing branch axial load arrows to the bolted connection diagram.
* [**HSS Shear and Moment Connections**](https://www.atlastube.com/hss-connections-hub/) 🇺🇸 🇨🇦: 3D diagrams now draw HSS walls at nominal thickness, so A500 Grade C sections no longer appear thinner than they are.

***

## Platform Improvements

### 🚀 New Features

* **Reports**: Your reports now save automatically as you type, with a status line showing when your work is saved.
* **Report Tables**: You can now align table text to the top, middle, or bottom of a cell.
* **Report Links**: You can now open a link from the keyboard with Alt+Enter, or from the new Open link button in the link toolbar.
* **Report Images**: You can now type a caption straight under a new image instead of filling in a separate dialog, and insert images with the `/image` command.
* **Starred Projects**: If you have more than five starred projects, you can now page through them on the Home page.
* **Project Cards**: You can now star or unstar a project straight from its card on the Home page.
* **Atlas Tube Home**: Atlas Tube users now see connection detail cards on the Home page that open straight into the Details Library.
* **US Spelling**: US-based organizations and Atlas Tube users now see US spelling, such as "organization" and "favorite", across the new layout.

### 🛠️ Improvements & Fixes

* **Projects**: Fixed an issue where opening a project in a new tab could leave you stuck on an error page until you logged out.
* **Archived Projects**: Fixed a crash when opening an archived project.


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