Performance Optimisation

1.5.1 (2026-04-23)

• Improvement: Optimized wppo_img_info database option by disabling autoloading, significantly reducing memory usage on frontend page loads.
• Improvement: Implemented atomic write protection for image metadata to prevent redundant database operations during request shutdown.
• Fix: Consolidated performance guidelines in bolt.md to ensure consistent development patterns.

1.5.0 (2026-04-20)

• New: Performance Monitor — High-precision local telemetry engine using raw cURL for granular network diagnostics (DNS, Connect, SSL, TTFB).
• New: System Info Dashboard — Real-time environment diagnostic tool providing detailed PHP, Database, WordPress, and Server metrics.
• New: Developer Mode — Advanced UI toggle for granular performance metrics and environment data.
• Improvement: Enhanced SSRF protection for local telemetry scans.
• Improvement: Modernized UI with dynamic WordPress admin color scheme adaptation using color-mix().

1.4.0 (2026-04-18)

• New: Enterprise Redis Object Cache support including Sentinel, Cluster, and TLS/SSL encryption modes.
• New: Atomic, batched processing for database cleanup and cron tasks to ensure stability on large-scale sites.
• New: Upgraded Design System v2.1 with modular components (FeatureCard, FeatureHeader, SwitchField) and optimized Sass architecture.
• New: Real-time status reporting on the dashboard for background optimization visibility.
• Improvement: Hardened security architecture with AJAX-based nonce resilience and DoS protection for image conversion.
• Improvement: Standardized REST API permission callbacks and input sanitization for enterprise compliance.
• Fix: Resolved structural regressions in REST cleanup controllers and improved reliability of revision management.

1.3.0 (2026-04-15)

• New: Core Tweaks section to remove WordPress bloat (Emojis, Embeds, Dashicons) and control Heartbeat limits.
• New: Active WP-Cron scheduling for Database cleanups (Daily, Weekly, Monthly) with precise age/revision limits.
• New: Injected fetchpriority support to preload links for faster asset transmission.
• New: Implemented an active MutationObserver to track and lazy-load dynamically generated DOM content.
• New: Extended server-level cache expiration and Deflate/Gzip compression rules within .htaccess.
• New: Added logic to exclude specific self-hosted videos from lazy-loading routines.
• Improvement: Automatically inject font-display: swap into CSS payloads to eliminate render-blocking text.
• Improvement: Substantially refined UI aesthetics by migrating to native WP CSS variables and expanding component descriptions.
• Improvement: Added logic toggles to conditionally skip heavy HTML, CSS, and JS minification overhead.
• Fix: Mitigated false-positive SQL placeholder warnings (WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare) in database garbage collection routines.

1.2.3 (2026-04-14)

• Fix: Resolved fatal error where Advanced_Cache_Handler was not found during activation or admin notice checks.
• Performance: Refactored Advanced_Cache_Handler to use lazy loading (“require when needed”) to reduce memory footprint.
• Fix: Shortened plugin short description to meet WordPress.org’s 150-character limit.

1.2.1 (2026-04-14)

• Fix: Implemented handle whitelisting in Metabox to prevent unauthorized script/style handle persistence.
• Fix: Support parent directory locations for wp-config.php (core-mirroring behavior).
• Fix: Properly handle transient deletion and WP_CACHE constant guards during activation.
• Fix: Alignment and escaping in admin notices for WPCS compliance.
• Fix: Add WP_CACHE to wp-config.php when the constant was previously undefined (correct activation logic).
• Safety: advanced-cache.php includes a plugin marker; do not overwrite or delete another plugin’s drop-in.
• UX: Admin notices for foreign drop-in, wp-config issues, competing full-page cache plugins, and a short post-activation welcome notice.
• UI: Stronger warning when enabling WooCommerce asset removal.
• Docs: Expanded readme description, FAQ, and screenshot placeholders.
• Meta: Plugin header Requires at least now matches readme.txt (6.2).

1.2.0 (2026-04-13)

• New: Automatic Gzip compression and browser caching for faster page loads.
• New: CDN support — serve static assets from your own CDN domain.
• New: Smarter cache clearing — related pages update automatically when you edit content.
• New: Safety prompts before deleting data, removing images, or importing settings.
• New: Helpful warnings when enabling advanced options like Defer JS or Server Rules.
• New: Plugin UI matches your chosen WordPress admin color scheme.
• Improvement: Faster loading — removed external font dependency.
• Improvement: Better form inputs, loading indicators, and keyboard navigation.
• Improvement: Faster database operations for image processing.
• Security: Fixed several file path security issues.
• Compatibility: Tested up to WordPress 6.9.

1.1.4 (2026-04-08)

• Security: Fixed path traversal vulnerability in the Image Optimisation REST endpoint.
• Security: Added directory traversal protection in URL-to-path resolution.
• Performance: Optimized image queue database writes by caching in memory and flushing once on shutdown.
• Fix: Updated CheckboxOption component to use unique IDs for proper accessibility (label/input association, aria-describedby).

1.1.3 (2026-04-07)

• Fix: Anchored build paths in .distignore to prevent accidental exclusion of vendor files.

1.1.2 (2026-04-07)

• Fix: Cache the Img_Converter instance to reduce PHP overhead during image conversion.
• Fix: Validate and sanitize imported REST API settings before saving.
• Fix: Improve sidebar accessibility and keyboard navigation in the admin UI.
• Update: Use @wordpress/element for React rendering compatibility in WordPress.

1.1.1 (2026-04-06)

• Improvement: Optimized JS Defer and Delay loading by caching exclusion lists.
• Improvement: Enhanced backend performance by reducing redundant string parsing.
• Security: Implemented protection against potential directory traversal vulnerabilities.
• Fix: Standardized REST API key sanitization to prevent settings synchronization issues.
• Localization: Added translated ARIA labels for sidebar accessibility.

1.1.0 (2026-04-05)

• Improvement: Visually enhanced the ‘File Optimization’ settings for easier configuration.
• Improvement: Hardened overall plugin security and input validation.
• Fix: Automatically clear cache when changing permalink settings or switching themes.
• Fix: Prevented unnecessary CSS files from generating on 404 error pages.
• Update: Improved image lazy loading reliability for smoother page rendering.

1.0.0 (2024-12-18)

Initial release with full functionality:
Dashboard overview.
Cache management.
JavaScript, CSS, and HTML optimization.
Advanced image optimisation and lazy loading.
Preloading settings for cache, fonts, and images.
Import/export settings tools.