🚀 XC_VM v2.4.2

✨ New Features

• Added per-server version rollback from the panel (Functionality not tested) — administrators can now roll back individual servers to a previous XC_VM version directly from the admin interface.
• Added typed SettingsManager accessors for safer and more consistent configuration access across the codebase.
• Added RequestManager::has() and improved request parameter handling through centralized RequestManager::get() and has() methods.
• Added incremental development deployment with the new sync-dev.sh tool.
• Added JSON export support to listing pages alongside CSV export.

🚀 Streaming Improvements

• Improved HLS connection tracking — connections are now deduplicated by player instead of by individual request UUID, preventing duplicate live connection records.
• Applied HTTP reconnect handling to all live sources, not only LLOD streams.
• Hardened Redis teardown and live connection handling, including protection against missing hmac_id values.
• Moved the xc_fanout keepalive log outside cron-swept temporary directories to prevent accidental log removal.

🛠 Admin & Panel Improvements

• Fixed initialization of $rKeyCount during live-connections refresh operations.
• Fixed CSV export functionality on listing pages.
• Added JSON export support for listing pages.
• Resolved runtime errors and undefined-key/null warnings reported by the panel error log.

🔧 Ministra Fixes

• Fixed STB redirect loops involving server/load.php.
• Restored compatibility behavior for STB type and firmware cut_off handling by keeping the feature disabled by default, consistent with v2.3.9.
• Changed empty Allowed STB Types behavior to allow all STB types instead of blocking access.

♻️ Architecture & Refactoring

• Replaced per-scope bootstrap include pairs with dedicated ScopeBootstrap classes.
• Migrated configuration access across Core, Domain, Infrastructure, CLI, Public, API, and VOD code to typed SettingsManager accessors.
• Improved CLI configuration access and reduced repeated reads in hot paths.
• Centralized request parameter access through RequestManager.
• Added property and parameter type declarations in API components.
• Removed redundant require_once calls for classes already handled by PSR-4 autoloading.
• Optimized Redis handler access and configuration reads.

🐛 Bug Fixes

• Resolved all remaining PHPStan errors and removed the previously frozen baseline.
• Fixed multiple undefined-key and null-access warnings surfaced through panel error logs.
• Fixed runtime errors discovered after the v2.4.1 release.
• Improved safety of Redis connection cleanup and teardown.
• Fixed HLS live connection duplication.
• Fixed HTTP reconnect behavior for non-LLOD live sources.
• Fixed CSV export issues.

📚 Documentation

• Improved Russian documentation generation by translating bold spans atomically.
• Added automatic cleanup of orphaned Russian documentation pages.
• Audited development documentation for source drift.
• Split oversized documentation pages for better maintainability.
• Added documentation covering core wiring.
• Updated the release preparation checklist.
• Integrated documentation builds into the validation process.

XC_VM v2.4.2 focuses on stability, code quality, and administration. This release adds per-server rollback, typed configuration access, improved request handling and export functionality, while resolving all PHPStan issues and addressing multiple runtime, streaming, Redis, and Ministra-related bugs.