Last checked and updated on April 16, 2026What Is New in PrimeFaces 5.0
PrimeFaces 5.0 is a major release packed with new components, significant upgrades to existing ones, and a big push towards modern web standards. The focus is on enhancing the client-side API, improving performance, and refining the overall developer experience.
| Category | Key Highlights |
|---|---|
| New Components | Signature, Ring, Diff, Badge, Terminal |
| Major Updates | New DataTable, Client-side Validation, Schedule rewrite |
| Client-Side API | Extensive new API for components and utilities |
| Performance | Reduced page load times, widget optimizations |
| Other | jQuery 1.11 update, portlet support, bug fixes |
What are the new components in PrimeFaces 5.0?
This release introduces several new components to expand the UI toolkit. The new p:signature captures smooth signatures as vector paths. p:ring offers a circular carousel, a different take on content navigation.
For developers, p:diff visually compares text with line-by-line highlighting. p:badge is a simple label for displaying numerical data, and p:terminal provides a command-line interface for custom commands.
How was the DataTable component improved?
The DataTable got a complete overhaul on the client-side, making it faster and more powerful. The new widget is more efficient at handling large datasets and complex operations like filtering and sorting.
In practice, this means your tables will feel more responsive. The client-side API is now much richer, giving you finer control over the table's behavior without a full server round-trip.
What is the new Client Side Validation feature?
PrimeFaces now includes a comprehensive Client Side Validation (CSV) framework. This allows for immediate feedback on input fields without waiting for the server, which drastically improves user experience.
You can use standard Bean Validation annotations like @NotNull and @Size, and the validation happens right in the browser. This matters because it reduces server load and makes your forms feel instant.
Were there any major component rewrites?
Yes, the Schedule component was completely rewritten from the ground up. The new version is more reliable and has a cleaner API that aligns better with the PrimeFaces ecosystem.
The old Schedule had some quirks and limitations. This rewrite addresses those issues head-on, providing a more stable foundation for building calendar views and handling events.
What about performance and under-the-hood changes?
Performance was a key focus. Core widgets were optimized to reduce the initial page load time, making your applications feel snappier from the start.
The library also upgraded its internal jQuery dependency to version 1.11.1. This keeps PrimeFaces current with the wider web development world and ensures compatibility with modern browser features.
FAQ
Is the old Schedule component still available in 5.0?
No, the old Schedule component has been completely removed and replaced with the new rewritten version. You will need to migrate your code to use the new API.
Do I have to use the new Client Side Validation?
No, it's optional. The traditional server-side validation still works exactly as before. You can choose to enable CSV on a per-form basis for a better user experience.
How do I access the new Client Side API for components?
You can access a component's widget variable using the PF('widgetVarName') function. The new DataTable, for example, exposes many new methods through this client-side object.
Was the FileUpload component updated in this release?
Yes, the FileUpload component received various improvements and bug fixes to make it more stable and reliable for handling file transfers.
Are there any breaking changes I should be aware of when upgrading?
The main breaking change is the removal of the old Schedule component. Other changes are largely additive, but it's always good to test your application thoroughly after upgrading.