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## Description We are improving the LCP by reducing the time to reach the first evaluation, aiming for a 1.8 to 2.2 second reduction. To achieve this, we’ve implemented the following changes: Code Splitting of Widgets: During page load, only the widgets required for an evaluation are loaded and registered. For every evaluation cycle we keep discovering widget types and load them as required. Web Worker Offloading: Macro tasks such as clearCache and JavaScript library installation have been moved to the web worker setup. These are now executed in a separate thread, allowing the firstUnevaluatedTree to be computed in parallel with JS library installation. Parallel JS Library Loading: All JavaScript libraries are now loaded in parallel within the web worker, instead of sequentially, improving efficiency. Deferred Rendering of AppViewer: We now render the AppViewer and Header component only after registering the remaining widgets. This ensures that heavy rendering tasks—such as expensive selector computations and loading additional chunks related to the AppViewer—can execute in parallel with the first evaluation, further enhancing performance. ## Automation /ok-to-test tags="@tag.All" ### 🔍 Cypress test results <!-- This is an auto-generated comment: Cypress test results --> > [!TIP] > 🟢 🟢 🟢 All cypress tests have passed! 🎉 🎉 🎉 > Workflow run: <https://github.com/appsmithorg/appsmith/actions/runs/16202622510> > Commit: b648036bd7b74ae742f5c5d7f6cfd770867a2828 > <a href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=16202622510&attempt=1" target="_blank">Cypress dashboard</a>. > Tags: `@tag.All` > Spec: > <hr>Thu, 10 Jul 2025 19:22:25 UTC <!-- end of auto-generated comment: Cypress test results --> ## Communication Should the DevRel and Marketing teams inform users about this change? - [ ] Yes - [ ] No <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit ## Summary by CodeRabbit * **New Features** * Widgets are now loaded and registered asynchronously, improving app startup and modularity. * Widget registration and configuration changes are now versioned, ensuring selectors and UI update appropriately. * Widget initialization and factory cache management are more robust, with explicit cache clearing after widget registration. * Added new Redux actions and selectors to manage first page load, deferred JS library loading, and page rendering state. * Theme handling and widget initialization in AppViewer are streamlined for faster evaluation and rendering. * Deferred loading of JavaScript libraries on first page load improves performance. * Conditional rendering gates added to AppViewer and Navigation components based on evaluation state. * **Bug Fixes** * Prevented errors when conditionally rendering widgets and navigation components before evaluation is complete. * Improved widget property pane and configuration tests to ensure all widgets are properly loaded and validated. * **Refactor** * Widget import and registration logic was refactored to support dynamic, on-demand loading. * Evaluation and initialization sagas were modularized for better maintainability and performance. * Widget factory and memoization logic were enhanced to allow explicit cache clearing and version tracking. * JavaScript library loading logic was parallelized for faster startup. * Theme application extracted into a dedicated component for clarity and reuse. * **Tests** * Expanded and updated widget and evaluation saga test suites to cover asynchronous widget loading, cache management, and first evaluation scenarios. * Added tests verifying widget factory cache behavior and first evaluation integration. * **Chores** * Updated internal dependencies and selectors to track widget configuration version changes, ensuring UI consistency. <!-- end of auto-generated comment: release notes by coderabbit.ai --> |
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Organizations build custom applications like dashboards, admin panels, customer 360, IT automation, and service management tools to help their teams work more efficiently and effectively. Appsmith is an open-source low-code platform that streamlines custom application development, deployment, and maintenance. Learn more on our website.
Installation
There are two ways to start using Appsmith:
- Signup on Appsmith Cloud.
- Install Appsmith on your machine. See the installation guides below.
| Installation Methods | Documentation |
|---|---|
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Docker (Recommended) |
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Kubernetes |
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AWS AMI |
For other deployment options, see the Installation Guides documentation.
Development
To build and run Appsmith in your local dev environment, see Setup for local development.
Learning Resources
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Introducing a new agentic AI platform that integrates the latest AI models with private and proprietary data at scale — inside the tools and systems that teams use every day. Appsmith Agents expands generative AI’s capabilities for the millions of knowledge workers in sales, support, customer success, human resources, and other business teams. By giving continuous context to AI models, Appsmith Agents lets teams ask questions and configure automations specific to their business without model fine-tuning or complex RAG implementations. Visit appsmith.com/ai to learn more.
Contributing
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📕 We expect everyone participating in the community to abide by our Code of Conduct. Please read and follow it.
🤝 If you'd like to contribute, start by reading our Contribution Guide.
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License
Appsmith is licensed under the terms of Apache License 2.0.