# Fuuz 2026.3 (March 2026) > What changed in Fuuz 2026.3 (March 2026): Screen Designer Structure Tab; API Documentation Screen; Application Designer Enhancements. Source: https://www.fuuz.com/resources/releases/2026-3 Release notes March 2026. 44 changes across the platform. [All releases](https://www.fuuz.com/resources/release-notes) [Subscribe](https://www.fuuz.com/resources/release-notes#subscribe) In this release [Edge and Gateway 2](#area-edge) [Integration and Connectors 1](#area-integration) [Orchestration and Data Flows 2](#area-orchestration) [Security and Administration 4](#area-security) [Data Models and API 6](#area-data) [App Building and Packages 6](#area-apps) [Screens and User Experience 18](#area-ui) [Search all releases →](https://www.fuuz.com/resources/release-notes#browse) QA release Mar 3, 2026 Production release Mar 17, 2026 Changes 44 Screens and User Experience ### Screen Designer Structure Tab The first highlight this month is over in our screen designer: a new Structure tab! This new UI is intended to combine and replace the "Layers" and "Scripts" tabs, providing a tree view of the overall screen structure but with a vastly improved user experience - including filters, script preview and editing, and synchronization with canvas selection state. This UI should look familiar - it's the same underlying compo… Screens and User Experience ### API Documentation Screen The 2026.3 release also includes a new screen, available standalone or as an Application Designer tab: a unified API Documentation page. This screen brings together our existing GraphQL API documentation with other APIs that have always existed, but perhaps been less obvious: data flows and webhooks! The data flow documentation includes details on any request/response flows that are executable as RPC APIs - including… App Building and Packages ### Application Designer Enhancements This month's release includes a slate of enhancements to the application designer - we'll go through a few of them quickly. There are more improvements underway now and even more stacked in our 2026 roadmap, so if you're not using the application designer yet, you probably should be! Better Schema Designer Interaction: First up, we've substantially improved the way the schema designer behaves when used within the app… Screens and User Experience ### Logo Mark & Favicon Update With the 2026.3 release, you'll find that our logo mark has changed! In the site header and tab favicon, you'll find the Fuuz "F" has been replaced with our new "chain" mark. This update has already been applied to our support portal and commercial website, so you may have already seen it - but if not, don't worry... it's still the same Fuuz platform you know and love! Dashboards, Reports and Documents ### New App & Admin Home Screen Dashboard Finally, this month's release includes a revamped set of administration home screen dashboards. These screens are a great landing page for admin users, providing a snapshot of tenant or enterprise application usage and status, common quick actions such as granting or requesting access, plus quick links to get new users started - help, documentation, support, and more! ## Edge and Gateway ### Fixed - **Corrected an edge case crash caused by screen delete data change events** Integration › Edge Gateway - **Corrected a bug causing the gateway to not respect the Scan Rate Seconds configuration option on Modbus devices** Integration › Edge Gateway ## Integration and Connectors ### New - **Added API Documentation screen (also available in the Application Designer) to act as a one-stop-shop for documentation on available Fuuz APIs** Integration › Integration Platform ## Orchestration and Data Flows ### Improved - **Standardized and improved data flow node and configuration field documentation across the board** Orchestration › Data Flow System - **Updated data flow console to extract and display the most relevant (root) error message when deeply-nested HTTP errors are displayed** Orchestration › Data Flow System ## Security and Administration ### New - **Added new enterprise and app home screens displaying database usage metrics** Data › Security & Administration - **Added enterprise-wide metrics dashboard showing system usage across all three environments (build, QA, and production)** Data › Security & Administration ### Improved - **Removed duplicate authentication event logging for API key verification failures occurring in the subscription service** Data › Security & Administration - **Removed a misleading error snackbar that could pop up when adding a new user without selecting a role** Data › Security & Administration ## Data Models and API ### New - **Added a "New Model from File" function to quickly create a data model matching a CSV or JSON data file** Data › Schema Designer - **Added a "data model type" dropdown when creating many-to-many relations** Data › Schema Designer ### Improved - **Removed validation preventing models from being deployed before creating relations** Data › Schema Designer - **Updated data change capture system to skip rebuilding TTL indexes on model deployment if the data change retention hasn't changed** Data › GraphQL API - **Updated data models to automatically index all date and date time fields** Data › GraphQL API - **Updated data models to use the first version's module until the model is deployed for the first time** Data › GraphQL API ## App Building and Packages ### New - **Added system data models to the Workspace panel tree** User Interface › Application Designer - **Added support for Script Editor, GraphQL Editor, Data Tree Viewer, and Documentation Explorer tabs** User Interface › Application Designer ### Improved - **Improved tab management and interaction with Schema Designer** User Interface › Application Designer ### Fixed - **Corrected an issue that could occur when installing a package which included a saved script which had never been deployed** Orchestration › Package Management - **Addressed a few small bugs that were lingering from previous workspace tree refactor** User Interface › Application Designer - **Corrected a bug causing the state of new screens to not update correctly when saved** User Interface › Application Designer ## Screens and User Experience ### New - **Added data props to screen elements to streamline automated UI testing** User Interface › Framework - **Added framework library to support custom navigation drawer contents (to be exposed as a screen designer feature in a future release)** User Interface › Framework - **Added loading backdrop during sign-in/tenant change** User Interface › Framework - **Added a new Structure tab to provide a filterable and browsable tree view of screen layout** User Interface › Screen Designer - **Added an Accordion screen designer element to easily create groups of collapsible panels** User Interface › Screen Designer - **Added X and Y axis label configuration options for line, bar, and timeseries charts** User Interface › Screen Designer - **Added configuration options to disable date range navigation in timeseries charts** User Interface › Screen Designer - **Added an "On Timer Expired" script to the Timer screen element to allow screen updates when the timer expires** User Interface › Screen Designer - **Added dedicated editable table UI inputs for float, integer, date, date time, time, measure, and ratio measure fields** User Interface › Screen Designer - **Added configuration option to the Table element for Initial Row Height** User Interface › Screen Designer - **Added configuration option to the Table Column element for Background Color Field** User Interface › Screen Designer ### Improved - **Updated data tree viewer to support real-time streaming of data changes** User Interface › Framework - **Updated system favicon and logo mark to new Fuuz "chain" (so long, "F"!)** User Interface › Framework - **Updated drawer navigation menu to make sections collapsible** User Interface › Framework - **Updated tenant change to streamline state changes and minimize the number of UI changes while loading** User Interface › Framework - **Improved the loading cycle of select inputs to reduce the amount of time they take on page load before they're "ready"** User Interface › Framework ### Fixed - **Corrected an issue with width and height handling causing Gantt charts and visualizations to not render correctly** User Interface › Framework - **Corrected a bug causing the drawer menu to render incorrectly on mobile devices** User Interface › Framework