Felix Arntz
@flixos90 on WordPress.org and Slack
Bio
Interests
Contributions Sponsored
- Member Since: November 28th, 2012
- Location: San Francisco, USA
- Website: felix-arntz.me
- GitHub: felixarntz
- Job Title: Senior Software Engineer
- Employer: Google
Contribution History
Felix Arntz’s badges:- Core Contributor
- Core Performance Contributor
- Core Performance Team
- Core Team
- Documentation Contributor
- Meta Contributor
- Plugin Developer
- Translation Contributor
- Translation Editor
- WordCamp Organizer
- WordCamp Speaker
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Wrote a new post, WordPress 6.8 performance improvements, on the site Make WordPress Core:
This post is the latest in a series of updates focused on the performance improvements… -
Closed issue #1987 on the WordPress/performance repository:
PHPUnit tests failing in `trunk` -
Merged pull request #1989 into WordPress/performance:
Fix PHPUnit tests failing for dominant-color-images -
Created issue #1987 in the WordPress/performance repository:
PHPUnit tests failing in `trunk` -
Committed [3271924] to Plugins SVN:
Updating readme/assets from GitHub -
Committed [3271914] to Plugins SVN:
Updating readme/assets from GitHub -
Committed [3271903] to Plugins SVN:
Updating readme/assets from GitHub -
Committed [3271902] to Plugins SVN:
Update to version 1.0.1 from GitHub -
Committed [3271900] to Plugins SVN:
Update to version 1.0.1 from GitHub -
Committed [3271893] to Plugins SVN:
Updating readme/assets from GitHub -
Committed [3271892] to Plugins SVN:
Updating readme/assets from GitHub -
Committed [3271882] to Plugins SVN:
Updating readme/assets from GitHub -
Committed [3271869] to Plugins SVN:
Updating readme/assets from GitHub -
Updated a handbook page on Make WordPress Core.
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Wrote a new handbook page, The Performance Lead Role, on the site Core Performance:
Since WordPress 6.2, every WordPress Core release has had one or two Performance Leads as… -
Made 13 updates to handbook pages on Core Performance.
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Merged pull request #1974 into WordPress/performance:
Bump WordPress Tested up to versions of all plugins to 6.8. -
Submitted pull request #1974 to WordPress/performance:
Bump WordPress Tested up to versions of all plugins to 6.8. -
Made 6 updates to handbook pages on Core Performance.
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Wrote a new post, Introducing Core Performance Team Reps for 2025, on the site Core Performance:
Now that the nominations process and vote for Core Performance Team Reps has concluded, I'm pleased to… -
Created issue #1963 in the WordPress/performance repository:
Plugin Proposal: View Transitions -
Created issue #1960 in the WordPress/performance repository:
Bump tested up to WordPress version to 6.8 -
Created ticket #63186 on Core Trac:
Empty `properties` PHP array in REST API JSON schema leads to invalid ... -
Wrote a comment on the post More efficient block type registration in 6.8, on the site Make WordPress Core:
In principle there is, yes. The benefit is that it would still avoid parsing the… -
Wrote a comment on the post Interactivity API best practices in 6.8, on the site Make WordPress Core:
I think it was discussed before, definitely worth thinking about further. Though I'm not sure… -
Mentioned in [60087] on Core SVN:
Help/About: Update the About page for 6.8. -
Mentioned in [60084] on Core SVN:
Media: prevent uploading image types the server doesn’t support. -
Wrote a new post, Interactivity API best practices in 6.8, on the site Make WordPress Core:
WordPress 6.8 comes with a few new best practices and requirements in the Interactivity API… -
Wrote a new post, New filter
should_load_block_assets_on_demandin 6.8, on the site Make WordPress Core:
WordPress 6.8 introduces a new filter should_load_block_assets_on_demand, which runs as part of a new function… -
Pull request #69578 merged into WordPress/gutenberg:
Include blocks manifest build process in Webpack config to fix `create-block` bug... -
Wrote a comment on the post More efficient block type registration in 6.8, on the site Make WordPress Core:
Thanks! Per my above reply, a fix for this bug is being worked on, see… -
Wrote a comment on the post More efficient block type registration in 6.8, on the site Make WordPress Core:
Thanks for sharing! This is a bug that was reported in https://github.com/WordPress/gutenberg/issues/69565, and a fix… -
Submitted pull request #69578 to WordPress/gutenberg:
Include blocks manifest build process in Webpack config to fix `create-block` bug... -
Wrote a new post, Core Performance Team Reps for 2025: Submit Your Votes, on the site Core Performance:
With the Core Performance Team Reps call for nominations now closed, it's time for voting!… -
Wrote a new post, More efficient block type registration in 6.8, on the site Make WordPress Core:
WordPress 6.8 introduces a new function wp_register_block_types_from_metadata_collection(), which allows plugins to register multiple block types… -
Created issue #69552 in the WordPress/gutenberg repository:
Run Interactivity API actions asynchronously unless they're using `withSyncEvent()` -
Closed issue #64944 on the WordPress/gutenberg repository:
Introduce `withSyncEvent` and require Interactivity API actions that use the `event` object... -
Merged pull request #69446 into WordPress/gutenberg:
Enhance create-block package to support blocks manifest and relevant Core APIs by... -
Closed ticket #62319 on Core Trac:
There is a flash when clicking the template name in the editor if a ... -
Committed [59951] to Core SVN:
Editor: Fix unexpected behavior due to conflicting custom block ... -
Wrote a new post, Speculative Loading in 6.8, on the site Make WordPress Core:
WordPress 6.8 introduces speculative loading, which can lead to near-instant page load times by loading… -
Merged pull request #69445 into WordPress/gutenberg:
Update docs about wp-scripts build-blocks-manifest in relation to new WordPress 6.8 function -
Submitted pull request #69446 to WordPress/gutenberg:
Enhance create-block package to support blocks manifest and relevant Core APIs by... -
Submitted pull request #69445 to WordPress/gutenberg:
Update docs about wp-scripts build-blocks-manifest in relation to new WordPress 6.8 function -
Closed ticket #63027 on Core Trac:
Block type path normalization is inconsistent (e.g. for Windows) -
Committed [59938] to Core SVN:
Editor: Fix block type and block metadata collection registration ... -
Received props from @JeffPaul in Slack:
Props to @joemcgill @desrosj @michelleames @Mamaduka @bph @beryldlg @krupajnanda @johnbillion @zunaid321 @narenin @wplmillet @sourabhjain @sukhendu2002… -
Closed issue #1881 on the WordPress/performance repository:
Modern Image Format no crop, if crop is array -
Merged pull request #1887 into WordPress/performance:
Fix Modern Image Format not cropping image if crop is an array -
Committed [3250544] to Plugins SVN:
Update to version 0.5.0 from GitHub
Developer
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Contact Form 7
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ElasticPress
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HyperDB
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Keyring
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Perfect Images
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Rate
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Stream
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SyntaxHighlighter Evolved
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The SEO Framework – Fast, Automated, Effortless.
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WP Multi Network
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WP Redis
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WP Spider Cache
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Deutsch (German) Plugins Translation Editor - #de_DE
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Attachment Taxonomies
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Bootstrap for Contact Form 7
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GiveWP – Donation Plugin and Fundraising Platform
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Snow Fall
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