3.6.1

There is 1 plugin included with this release:

Performance Lab (performance-lab) v3.6.1

Bug Fixes

• Fix race condition bug where activating multiple features sequentially could fail to activate some features. (#1675)

3.6.0

There are 3 plugins included with this release:

Performance Lab (performance-lab) v3.6.0

Enhancements

• Use AJAX for activating features / plugins in Performance Lab. (1646)
• Introduce AVIF header health check. (1612)
• Install and activate Optimization Detective when the Embed Optimizer feature is activated from the Performance screen. (1644)

Bug Fixes

• Fix uses of 'Plugin not found' string. (1651)

Optimization Detective (optimization-detective) v0.8.0

Enhancements

• Serve unminified scripts when SCRIPT_DEBUG is enabled. (1643)
• Bump web-vitals from 4.2.3 to 4.2.4. (1628)

Bug Fixes

• Eliminate the detection time window which prevented URL Metrics from being gathered when page caching is present. (1640)
• Revise the use of nonces in requests to store a URL Metric and block cross-origin requests. (1637)
• Send post ID of queried object or first post in loop in URL Metric storage request to schedule page cache validation. (1641)
• Fix phpstan errors. (1627)

Modern Image Formats (webp-uploads) v2.3.0

Enhancements

• Introduce webp_uploads_get_file_mime_type helper function. (1642)
• Rename webp_uploads_get_file_mime_type to webp_uploads_get_attachment_file_mime_type to clarify scope. (1662)

Bug Fixes

• Fix bug that would prevent uploaded images from being converted to the intended output format when having fallback formats enabled. (1635)

3.5.1

This release fixes an issue with Performance Lab v3.5.0 which was only discovered after it was released:

• Account for plugin dependencies when storing relevant plugin info. (1613)

3.5.0

Update: v3.5.1 was released shortly after this to fix a bug with installing Image Prioritizer from the Performance features screen.

There are 5 plugins included with this release:

Performance Lab (performance-lab) v3.5.0

Enhancements

• Add Web Worker Offloading to list of Performance features. (1577)
• Only store info for relevant standalone plugins in the transient cache. (1573)
• Use a single WordPress.org API request to get information for all plugins. (1562)

Embed Optimizer (embed-optimizer) v0.3.0

Enhancements

• Leverage URL metrics to reserve space for embeds to reduce CLS. (1373)
• Avoid lazy-loading images and embeds unless there are URL Metrics for both mobile and desktop. (1604)

Image Prioritizer (image-prioritizer) v0.2.0

Enhancements

• Lazy load videos and video posters. (1596)
• Prioritize loading poster image of video LCP elements. (1498)
• Choose smaller video poster image size based on actual dimensions. (1595)
• Add fetchpriority=low to occluded initial-viewport images (e.g. images in hidden carousel slides). (1482)
• Avoid lazy-loading images and embeds unless there are URL Metrics for both mobile and desktop. (1604)

Optimization Detective (optimization-detective) v0.7.0

Enhancements

• Send gathered URL metric data when the page is hidden/unloaded as opposed to once the page has loaded; this enables the ability to track layout shifts and INP scores over the life of the page. (1373)
• Introduce client-side extensions in the form of script modules which are loaded when the detection logic runs. (1373)
• Add an od_init action for extensions to load their code. (1373)
• Introduce OD_Element class and improve PHP API. (1585)
• Add group collection helper methods to get the first/last groups. (1602)

Bug Fixes

• Fix Optimization Detective compatibility with WooCommerce when Coming Soon page is served. (1565)
• Fix storage of URL Metric when plain non-pretty permalinks are enabled. (1574)

Web Worker Offloading (web-worker-offloading) v0.1.1

Enhancements

• Add Web Worker Offloading meta generator. (1598)

3.4.1

There are 6 plugins included with this release:

Performance Lab (performance-lab) v3.4.1

Bug Fixes

• Fix Incorrect use of _n(). (1491)

Enhanced Responsive Images (auto-sizes) v1.3.0

Enhancements

• Move Auto Sizes logic from Enhanced Responsive Images to Image Prioritizer. (1476)
• Update auto sizes logic in Enhanced Responsive Images plugin to no longer load if already in Core. (1547)

Image Placeholders (dominant-color-images) v1.1.2

Enhancements

• Use more robust HTML Tag Processor for Image Placeholders. (1477)

Bug Fixes

• Re-remove unneeded phpcs:ignore. (1231)
• Update PHPStan to 1.11.5. (1318)

Image Prioritizer (image-prioritizer) v0.1.4

Enhancements

• Move Auto Sizes logic from Enhanced Responsive Images to Image Prioritizer. (1476)

Optimization Detective (optimization-detective) v0.6.0

Enhancements

• Allow URL metric schema to be extended. (1492)
• Clarify docs around a tag visitor's boolean return value. (1479)
• Include UUID with each URL metric. (1489)
• Introduce get_cursor_move_count() to use instead of get_seek_count() and get_next_token_count(). (1478)

Bug Fixes

• Add missing global documentation for delete_all_posts(). (1522)
• Introduce viewport aspect ratio validation for URL Metrics. (1494)

Modern Image Formats (webp-uploads) v2.2.0

Enhancements

• Convert uploaded PNG files to AVIF or WebP. (1421)

Bug Fixes

• Account for responsive images being disabled when generating a PICTURE element. (1449)

3.4.0

Enhancements

• Remove Server-Timing metric for the autoloaded options query time. (1456)

Bug Fixes

• Avoid sending Server-Timing header when buffer is being cleaned. (1443)
• Fix disabled options from reappearing in Site Health after external update. (1374)
• Improve Performance screen when external requests to WordPress.org fail. (1474)

3.3.0

Enhancements

• Bump minimum WP versions and WP version tested up to. (1333)
• Improve message for WebP site health test. (1249)
• Remove 'Requires at least' and 'Requires PHP' from plugin readmes. (1334)
• Upgrade PHPStan to 1.11.6. (1325)

Bug Fixes

• Extend core's Autoloaded Options Site Health test if present (in WP 6.6). (1298)
• Generate phpunit-multisite.xml on the fly. (1327)

3.2.0

Enhancements

• Add install note after each PerfLab feature plugin in the plugin list table. (1265)
• Update plugins with new banners and icons. (1272)

Bug Fixes

• Fix Server-Timing compatibility with other plugins that do output buffering. (1260)
• Harden autoloaded-options site health test for incorrectly implemented external object cache plugins. (1238)

3.1.0

Enhancements

• Add progress indicator when activating a feature. (1190)
• Display plugin settings links in the features screen and fix responsive layout for mobile. (1208)
• Add plugin dependency support for activating performance features. (1184)
• Add support for AVIF image format in site health. (1177)
• Add server timing to REST API response. (1206)
• Bump minimum PHP requirement to 7.2. (1130)
• Refine logic in perflab_install_activate_plugin_callback() to rely only on validated slug. (1170)
• Improve overall code quality with stricter static analysis checks. (775)

Bug Fixes

• Avoid passing incomplete data to perflab_render_plugin_card() and show error when plugin directory API query fails. (1175)
• Do not show admin pointer on the Performance screen and dismiss the pointer when visited. (1147)
• Fix WordPress.DB.DirectDatabaseQuery.DirectQuery warning for Autoloaded Options Health Check. (1179)

3.0.0

Enhancements

• Add caching to the wordpress.org query to get plugin information. (1022)
• Add support for autoloading enhancements in WordPress 6.6 trunk to autoloaded options Site Health check. (1112)
• Bump minimum required WordPress version to 6.4. (1062)
• Enhance object-cache.php drop-in placement logic to support updating to a newer version of the file. (1047)
• Implement support for annotating certain plugins as experimental. (1111)
• Migrate Site Health checks from being modules to becoming part of the plugin core. (1042)
• Remove modules infrastructure and UI from the plugin. (1060)
• Support changing autoload value for largest autoloaded options in Site Health check. (1048)
• Use plugin slug for generator tag. (1103)

Documentation

• Update tested WordPress version to 6.5. (1027)