I-PR AVIF Converter – Automatic Image Optimization

変更履歴

1.10.0 – October 15, 2026

• New: Full-page mode (default on). AVIF is now served for every image on the page, including hand-written HTML, Custom HTML blocks and widgets, theme header/footer, page builder templates and custom fields.
• New: Elementor section and container background images (desktop, tablet, mobile, hover) are served as AVIF through image-set(), with the original as fallback. Elementor CSS is regenerated after each conversion batch.
• New: Images found in pages that have no AVIF yet (e.g. uploaded via FTP) are queued automatically.
• New: Exclude a single image with class=”ipr-avif-skip”; preview a page without rewriting with ?ipr-avif=off.
• Improved: Image URLs are resolved in any form: absolute, root-relative (/wp-content/uploads/…), protocol-relative, www and non-www, URL-encoded.
• Improved: HTML is no longer re-serialized through DOMDocument. Only the image tag is wrapped; inline scripts, SVG viewBox and surrounding markup are left untouched.
• Improved: Malformed attributes (e.g. a quote turned into ” by wptexturize) no longer stop the rewriting of the rest of the page.
• Improved: The original pre-“-scaled” image (WordPress big image threshold) is now converted too.
• Fixed: The activation routine never ran, so default settings and the stats table were missing until settings were saved. Existing installs are repaired automatically on the next admin page load.
• Fixed: Failed conversions are now retried before quarantine instead of being dropped after the first error.
• Fixed: Inline background-image URLs in quotes produced a broken style attribute.
• Fixed: The “Pardon + re-queue” button in the quarantine list did nothing.
• Fixed: WebP copies are deleted together with the attachment.

1.9.12 – August 30, 2026

• Compatibility (WordPress 7.1): support for client-side media processing. WordPress 7.1 generates thumbnails in the browser and uploads them one by one after the initial upload, so wp_generate_attachment_metadata now fires twice — once with context ‘create’ before the sub-sizes exist, and again with ‘update’ once the upload is finalised. The queue now waits for the second pass instead of acting on the first. Previously, with “Delete originals” enabled, the source file could be removed while the upload was still in flight. The same fix also covers deferred sub-size generation on big-image uploads
• New: JPEG images carrying an HDR gain map (Google UltraHDR, Apple Adaptive HDR, Adobe Camera Raw/Lightroom/Photoshop) are now skipped. Transcoding them to AVIF discards the gain map and the served image loses its HDR — WordPress 7.1 skips format conversion for these files for the same reason
• Housekeeping: tested up to WordPress 7.1

1.9.11 – June 19, 2026

• Fix (critical): a fatal TypeError could crash sites (white screen) when a theme or page builder called wp_get_attachment_image() with a non-integer attachment ID — notably WoodMart’s Elementor widgets passing an empty string. The wp_get_attachment_image filter callback had strict parameter type-hints; since that core filter does not guarantee argument types, the hints have been relaxed and the input is now validated defensively. No change to conversion behaviour

1.9.10 – June 15, 2026

• Fix (regression): the shutdown background-processing fallback was disabled whenever a WP-Cron event was scheduled (introduced alongside 1.9.9’s self-healing scheduler). On hosts where WP-Cron is scheduled but never actually executes (e.g. DISABLE_WP_CRON with a missing or misconfigured system cron), this stopped the queue from processing even though the status showed “WP-Cron” active. The shutdown fallback is now always active as a safety net; it is throttled, skips during real cron runs, and exits immediately when the queue is empty, so it adds no overhead at steady state

1.9.9 – June 15, 2026

• Fix: the “plugin activated” welcome notice could not be dismissed — its dismiss link used an outdated action prefix (same class of issue as 1.9.7, on a GET link missed by that sweep), so the notice reappeared on every admin page. Dismissing now works and persists
• New: self-healing cron scheduling — the background conversion event is now re-registered automatically on load if it goes missing (common on hosts using DISABLE_WP_CRON with a system cron), so the queue runs reliably and the status correctly shows “WP-Cron” instead of falling back

1.9.8 – June 15, 2026

• Fix: removed a PERCENTILE_CONT SQL query in the RAM batch estimator that logged a harmless but noisy “WordPress database error” on every queue run under MySQL 8 and MariaDB (neither supports that syntax). Replaced with a portable percentile calculation — batch sizing behaviour is unchanged
• Housekeeping: bumped the declared “Requires PHP” to 8.1 to match the codebase (the plugin already uses PHP 8.1 syntax; the previous 7.4 declaration was inaccurate)

1.9.7 – June 15, 2026

• Fix: four admin action buttons (Export CSV, Reset stats, Clear log, Clear quarantine) were inoperative since 1.9.6 — their form action values were missed during the AVIF_ to IPR_AVIF_ prefix rename and no longer matched their registered hooks
• New: “Delete generated images (revert)” button — removes all plugin-generated AVIF/WebP files (only those sitting next to an original image) and clears the queue, without uninstalling. Originals are never touched

1.9.6 – April 28, 2026

• WordPress.org compliance: All internal prefixes renamed from AVIF_ to IPR_AVIF_ (classes, constants, options, hooks, transients)
• WordPress.org compliance: Text domain updated to ipr-avif-converter across all 174 instances
• WordPress.org compliance: All option keys and hook names prefixed with ipr_avif_

1.9.5 – April 21, 2026

• WordPress.org compliance: Rebranded to “I-PR AVIF Converter” for distinctive identity
• WordPress.org compliance: Maintained slug avif-converter for compatibility
• WordPress.org compliance: Fixed lock file storage: now creates dedicated /uploads/avif-converter/ subdirectory
• WordPress.org compliance: Added documentation clarifying DOM-based HTML escaping in output methods

1.9.4

• Added: Complete uninstall.php: removes all database tables, options, transients, and WP-Cron jobs on plugin removal. Zero ghost data.
• Added: Clear UI warning for “Delete Originals” option (irreversible action)

1.9.3

• Fixed: PHP 8.2+ compatibility: removed deprecated mb_convert_encoding() with HTML-ENTITIES in DOMDocument handling. No functional changes, resolves deprecation warnings on PHP 8.2+.

1.9.2

• Fixed: Elementor gallery lightbox now serves AVIF for full-size images, not just thumbnails
• Added: Support for Fancybox, WP native galleries, and generic data-lightbox attributes

1.9.1

• Fixed: Animated GIFs are now correctly preserved: binary frame-count detection prevents conversion to broken static AVIF

1.9.0

• Added: AIMD (Additive Increase Multiplicative Decrease) adaptive batch processing
• Added: EWMA-based timing prediction with pre-flight batch size reduction
• Added: Performance Score dashboard panel
• Added: Core Web Vitals proxy metrics (CWV)
• Added: Telemetry buffer (last 200 events with fail rate tracking)
• Changed: Average compression ratio improved to 64-68%

1.8.0

• Added: Real-time telemetry dashboard with conversion charts
• Added: CDN integration (Cloudflare automatic cache purge)
• Added: Bulk scanner for existing media library
• Added: Performance Score calculation

1.0.0

• Initial release
• Automatic JPEG/PNG → AVIF conversion via WP-Cron
• <picture> tag output with automatic browser fallback
• Dual encoder support: Imagick and GD
• Admin settings page with encoder status
• Background queue processing