v4.15 Release Notes
firstname.lastname@example.org release (May 2022 #2)
Key highlights of this release:
Also check out notable bugfixes.
Bleeding Edge: Want to try new features as soon as possible? Install
gatsby@next and let us know if you have any issues.
We’re releasing a built-in
<Script> component that aids in loading third-party scripts performantly.
As a familiar React component, migration to the
<Script> component is as simple as importing and capitalizing your existing script tags in most cases:
This will load your script after your page has hydrated by default, offering performance benefits over the native
<script> tag (even with
In our testing so far, we’ve noted a 20% reduction in Total Blocking Time for Gatsbyjs.com by moving 3 third party scripts to use the
off-main-thread strategy via the new component. With the benefit of gradually migrating scripts to the new component, we’ll be able to continue to fine tune scripts to the appropriate strategies, and provide the very best frontend speed to visitors of Gatsbyjs.com.
<Script> component includes three loading strategies that you can define, allowing a great deal of flexibility via a single
post-hydrate- Loads after the page has hydrated
idle- Loads after the page has become idle
off-main-thread(experimental) - Loads off the main thread in a web worker via Partytown
In addition, these features are supported out of the box:
- Inline scripts via template literals and the
idlescripts with sources
For full details, see the Gatsby Script reference documentation.
Note - If you are using Jest, you will need to include
transformIgnorePatternskey in your Jest config since
gatsby-scriptis an ES module. See the unit testing documentation on Jest configuration for more details.
In the last v4.14 release we’ve added GraphQL Typegen as an experimental feature. After some bugfixing and improving its documentation the feature is now generally available behind a
gatsby-cli: Default to
gatsby serveto be consistent with
gatsby build, via PR #35693
gatsby-source-wordpress: handle media edit (for example rotation or rename) properly for IMAGE_CDN, via PR #35687
A big Thank You to our community who contributed to this release 💜
- chuckreynolds: sitemap plugin readme has incorrect array name reference PR #35659
- admir4l: chore(gatsby, gatsby-cli, gatsby-plugin-sharp): remove old unused UUID dependency PR #35657
- feedm3: fix(gatsby): use correct types for the response headers PR #35633
- alvis: fix(gatsby): correct the types of
createNodeaction return PR #32522