# SiteBuilder release notes

**Source**: https://warwick.ac.uk/services/idg/services-support/web/releases/sitebuilder/?newsItem=8ac672c79ce1eef7019ce2a6647e0366
**Parent**: https://warwick.ac.uk/services/idg/services-support/web/sitebuilder2/

[Show all news items](https://warwick.ac.uk/services/idg/services-support/web/releases/sitebuilder/)

## SiteBuilder 2.646 released

We released SiteBuilder version 2.646 on Thursday 12th March 2026. Changes in this version include:

- **[Image components](https://warwick.ac.uk/sitebuilder/manual/content/images/)** now automatically generate appropriately-sized versions of the image when a user visits the page, improving loading speed.

## Technical notes

### Bugs fixed

- [SBTWO-12701] - Pretty 404s for static files
- [SBTWO-12727] - Future feature support

### Improvements made

- [SBTWO-12507] - Make file 404s cheaper
- [SBTWO-12648] - Image component: add srcsets at runtime
- [SBTWO-12728] - Future feature support

Thu 12 Mar 2026, 15:24

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