Selective Thumbnail Regenerator

1.0.4

• Critical Fix: Fixed fatal AJAX error by conditionally loading wp-admin/includes/image.php before calling wp_generate_attachment_metadata().
• Performance Fix: Replaced PHP loop-based year extraction with a single fast $wpdb SQL query.
• Bug Fix: Allow thumbnail generation for attachments with missing or corrupt database metadata (empty-array fallback instead of error).
• Cleanup: Implemented physical deletion of orphaned thumbnail files from disk before regeneration.
• Feature: Month Status Calendar – visual 4×3 grid showing regenerated months per year, persisted in the database with Reset History support.
• Feature: Regeneration History Tracking stored in wp_options, persists across sessions.
• Feature: Image title search filter for targeting images by name.
• Feature: Dry Run Mode – preview processing without writing to disk.
• Feature: Configurable Batch Size slider (1-20 images per request).
• Feature: Configurable Throttle Delay slider (0-2000 ms cooldown between batches).
• Feature: Automatic batch failure recovery – retries each image individually when a batch crashes, then continues.
• Feature: Failed Images Log – detailed table showing ID, title, and exact error for every failed image.
• Feature: Cache busting on “Scan Matching Images” to always return fresh counts.
• Redesign: Full UI overhaul – Inter font, card-based responsive layout, custom progress bar, live terminal console, metrics board.

1.0.3

• Feature: Thumbnail size selection – choose which specific sizes to regenerate
• Feature: Cancel button – stop the regeneration process at any time
• Feature: Batch processing – process multiple images per AJAX request for faster regeneration
• Feature: Summary report – view success/failure counts and elapsed time after completion
• Improved: Updated FAQ with new feature documentation

1.0.2

• Security: Added capability checks to AJAX handlers for improved security
• Removed unnecessary plugin assets
• Removed empty languages folder and Domain Path header
• Code structure improvements

1.0.1

• Security: Added ABSPATH protection to prevent direct file access
• Compatibility: Updated “Tested up to” value to WordPress 6.8
• Code Standards: Changed all prefixes from ‘str’ to ‘strgrtr’ for uniqueness
• Updated main class name to STRGRTR_Thumbnail_Regenerator
• Fixed contributor username in readme
• Updated all JS/CSS/HTML elements to use consistent prefixes

1.0.0

• Initial release