Webiny 6.4.10 Changelog

For the full list of changes, check out the Webiny 6.4.10 release on GitHub.

Webiny SDK

Fixed Unchecked Result Access Causing Cryptic Errors (#5625)

{/ REVIEW-PENDING @brunozoric — confirm this entry, then delete this line /}

When using the Result pattern internally, accessing .value on a failed result would break code execution with no meaningful error message. All Result values are now properly checked before access, preventing these cryptic failures and improving error handling throughout the codebase.

Website Builder

Fixed Grid Column Stacking Flash on SSR (#5628)

{/ REVIEW-PENDING @adrians5j — confirm this entry, then delete this line /}

Grid columns configured to stack at a specific breakpoint would briefly render side-by-side on page load before snapping to stacked layout — or stay broken entirely if the content didn’t hydrate. This happened because stacking was resolved in JavaScript after hydration, not from the actual viewport width.

Stacking is now applied via a scoped CSS media query rendered in the HTML, so the browser applies the correct layout immediately based on viewport width — no JavaScript required, no layout flash.