> ## 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 β€” July 16–31, 2026 > Bigger Steel Base Plate calculator, new Steel Composite HSS Beam and NBCC 2020/2025 seismic calculators, and lateral load design in Cold-Formed Steel Stud. ## Engineering Calculators ### πŸš€ New Features * [**Seismic Analysis (NBCC 2020)**](https://calcs.com/calculators/loadsSeismicNBCC-2020) πŸ‡¨πŸ‡¦: Now out of beta. Adds vertical seismic force distribution, a base shear limit indicator, and an optional Elastic Analysis block. Canadian Project Defaults now include seismic site parameters. * 🚧 **`NEW CALCULATOR COMING SOON`** **Seismic Analysis (NBCC 2025)** πŸ‡¨πŸ‡¦: New beta calculator for the NBCC 2025 Equivalent Static Force Procedure, with updated low seismic hazard exemption logic, 15% snow load in seismic weight, and 2025 clause numbering. * [**Steel Base Plate (ACI 318-19 & AISC 360-22)**](https://calcs.com/calculators/steelBasePlateLRFDACI318-19AISC360-22) πŸ‡ΊπŸ‡Έ: Major expansion. Adds anchor tension checks (cantilever and pure-moment methods per AISC DG1), a fillet weld check for combined tension, shear, and moment, custom anchor layouts beyond 2Γ—2, thin-concrete breakout factors, anchor shear redistribution, and biaxial bending interaction for both plate and anchors. * [**Cold-Formed Steel Stud / Column (AISI S100-16)**](https://calcs.com/calculators/cfsSteelColumnAISI) πŸ‡ΊπŸ‡Έ: Now supports lateral load design. Adds strong-axis flexure (lateral–torsional, local, and distortional buckling), combined axial-and-bending interaction, and short- and long-term deflection checks. Moment utilization appears in the design summary. * [**Seismic Analysis (ASCE 7-16)**](https://calcs.com/calculators/seismicAnalysisUS) and [**Seismic Analysis (ASCE 7-22)**](https://calcs.com/calculators/seismicAnalysisUSASCE7-22) πŸ‡ΊπŸ‡Έ: Four new opt-in features (all default off): flexible diaphragm overstrength reduction, about 13 more SFRS systems per edition, an auto-calculated redundancy factor ρ with manual override, and optional 1.10Γ— accidental torsion amplification. * [**Snow Loads (ASCE 7-16)**](https://calcs.com/calculators/loadsSnowASCE7-16) and [**Snow Loads (ASCE 7-22)**](https://calcs.com/calculators/loadsSnowASCE7-22) πŸ‡ΊπŸ‡Έ: Lower-roof drift now shows separate leeward and windward pressures instead of one governing value. Added Section 7.7.2 adjacent-structure drift, with its own inputs, drift-height calculation, and pressure tables. * [**Pole Footing (IBC 2024 / IBC 2021)**](https://calcs.com/calculators/foundationsPierFootingUSAIBC2024) πŸ‡ΊπŸ‡Έ: New Axial Capacity Mode selector under Soil Properties: End Bearing Only, Shaft Friction Only, or Combined per Geotechnical Report. ### πŸ› οΈ Improvements & Fixes * [**Steel Composite Beam (AISC 360-22)**](https://calcs.com/calculators/steelCompositeBeamLRFDAISC360-22) πŸ‡ΊπŸ‡Έ: Composite Action now affects Moment Capacity – Composite for partial designs, Moment Capacity – Precomposite uses bare steel instead of copying the composite value, LTB now checks against the right stage's governing moment, and force-equilibrium display errors are fixed. * [**Steel Base Plate (ACI 318-19 & AISC 360-22)**](https://calcs.com/calculators/steelBasePlateLRFDACI318-19AISC360-22) πŸ‡ΊπŸ‡Έ: Thread count now feeds into anchor tensile capacity. Fixed shear breakout branch order for welded and closely-spaced anchors, axial load double-counting when entered on both X and Y load tables (axial is now entered once), and axis swaps in plan and elevation diagrams. Legacy manual entries are preserved on upgrade. * [**Cold-Formed Steel Stud / Column (AISI S100-16)**](https://calcs.com/calculators/cfsSteelColumnAISI) πŸ‡ΊπŸ‡Έ: Corrected AISI reference citations, deflection span ratio now rejects zero, axial-bending and shear-bending checks are surfaced in the header, and reactions and dead load can now be linked into other calculators. * [**Seismic Analysis (NBCC 2020)**](https://calcs.com/calculators/loadsSeismicNBCC-2020) πŸ‡¨πŸ‡¦: Cleaned up the input layout, added code clause references to headings, and added Design Spectral Acceleration at Period to the results summary. No numeric changes. * [**Wind Loads (ASCE 7-22)**](https://calcs.com/calculators/loadsWindCnCASCE7-22) πŸ‡ΊπŸ‡Έ: Roof overhang uplift pressures now calculate correctly in individual effective area mode (previously blank). * [**Steel Base Plate (AISC 360-22)**](https://calcs.com/calculators/steelBasePlateLRFDACI318-19AISC360-22) πŸ‡ΊπŸ‡Έ: Pure-moment connections (zero axial, non-zero moment) no longer show plate thickness and anchor tension as zero. Now uses AISC DG1 Eq. 4-32. * [**Concrete Wall Footing**](https://calcs.com/calculators/concreteWallFooting): Fixed an "Unexpected error" when using mesh reinforcement (like trench mesh). Diagram labels now use mesh count and type instead of the hidden bar spacing input. * **Beam and Rafter calculators (14 templates)**: Clearer wording on the Load Direction When Linking to Column widget, explaining axial (Ny) vs. lateral (Px) for inclined rafters. No calculation changes. *** ## Atlas Tube Connection Hub ### πŸš€ New Features * [**Steel Composite HSS Beam (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: New calculator for rectangular and square composite HSS beams and girders. Covers composite flexure with partial composite action, shear, pre-composite LTB, and stud/anchor design. Supports LRFD and ASD. * [**HSS to HSS Splice β€” Round End Plate (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Now supports full moment design. Adds HSS column flexural capacity, connection moment, combined tension under axial-plus-moment, and interaction indexes for both the HSS column and end plate. * [**WF Beam to HSS Shear Connection (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Beta Column Bracing linking. You can now import WF beam and rectangular HSS column properties, design method, and demands from a linked Column Bracing sheet. Manual entry works the same when linking is off. * [**HSS Beam to WF Shear Connection (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Beta linking so you can import HSS beam and WF column properties, design method, and demands from a linked Column Bracing sheet. * [**Column Bracing Cast Connex (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Exports member properties into HSS to HSS Shear, and WF beam to HSS column properties into WF to HSS Shear. * [**HSS to HSS Shear Connection (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Refreshed 3D diagrams for the remaining four connection types (Unstiffened Seated, End Plate, End Plate Side Angles, Hidden). Plates, bolts, and weld symbols now render correctly. * [**WF Beam to HSS Shear & Moment Connections (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: 3D diagrams now show member names and section info consistent with the template. ### πŸ› οΈ Improvements & Fixes * [**HSS Steel Base Plate (AISC 360-22 & CSA S16:19)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ πŸ‡¨πŸ‡¦: Pure-moment connections (zero axial, non-zero moment) now follow the correct bearing-length procedure instead of resolving to zero plate thickness and anchor tension. Cleaner wording on bearing stress, load combination, and anchor tension widgets. * [**Concrete-Filled HSS Moment Connection (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Fixed thick end plates that were incorrectly failing, added combined tension-plus-shear on threaded rods, and added an HSS wall web local yielding check. The thin end-plate beta note is removed β€” the feature is now production-ready. * [**Concrete-Filled Column (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Out of beta for square and rectangular columns. * [**Concrete-Filled HSS Moment Connection (CSA S16:19)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡¨πŸ‡¦: Removed an unreachable beam-width check that referenced a connection type not supported in this template. * [**HSS to WF Moment Connection (CSA S16:19)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡¨πŸ‡¦: Removed an unreachable column-flange-width check for the BDA connection type, which isn't supported here. * [**HSS to HSS Splice Connection (CSA S16:19)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡¨πŸ‡¦: Fixed duplicate phi symbols on Factored Shear Resistance of One Bolt, Factored Moment Resistance, and Factored Bearing Strength of the HSS Column. * [**HSS to HSS Splice Connection (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Corrected moment capacity symbols and internal reference IDs across LRFD and ASD. No calculated results changed. * [**HSS to HSS Shear Connection (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Member selectors no longer disappear when load linking is off. Column Bracing linking notes are reorganized so the beta disclaimer is always visible and the how-to/support text switches with the toggle. * [**Column Bracing (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Linking note now names the WF to HSS Shear Connection calculator correctly. * [**HSS Truss Connection (AISC 360-22)**](https://www.atlastube.com/hss-connections-hub/) πŸ‡ΊπŸ‡Έ: Internal preset labeling and validation references cleaned up. No product behavior change. *** ## Platform Improvements ### πŸš€ New Features * **New sidebar (gated preview)**: Behind a feature flag, a persistent icon nav rail replaces the per-page sidebar, and a new collapsible project sidebar adds drag-and-drop sheet and group reordering, stale and failed sheet indicators, and faster project loads. * **Assumptions button on embedded calculators**: Embedded calculators now show an "Assumptions…" button in the toolbar when the template has assumptions defined, opening the same content as the regular calculator's Sheet Details sidebar. ### πŸ› οΈ Improvements & Fixes * **Upgrade page redirect loop**: Users with urgent calculation upgrades no longer get stuck on the `/upgrade` page when navigating inside a project under the new layout. * **New sidebar routing**: Direct links to `/billing`, `/organisation/[id]/users`, and new project creation now render the new sidebar and respect the settings feature gate. Billing and user management route to the new settings page for eligible admins. * **Project sidebar and standards pages**: The project sidebar stays pinned on long pages, standards code and clause pages render correctly with the new sidebar, and deleting a sheet reliably returns you to the project details page. * **Solver outages no longer crash sheets**: If a remote solver like USGS Design Maps is down, sheets stay interactive with a warning banner instead of showing a full-page error, so you can enter values manually. *** ## Calcs Builder ### πŸš€ New Features * **Hidden badge on the canvas**: Widgets marked hidden now show a light-blue "Hidden" badge directly on the canvas and internal preview, so you can spot them without opening each widget.