Introducing Plesk Obsidian 18.0.75: Elevating Server Management in 2025
As we step into 2025, Plesk is thrilled to announce the release of Plesk Obsidian 18.0.75, the first major update of the year. This latest iteration of the Plesk platform is designed to enhance server management by focusing on robust SSL/TLS management, support for modern development stacks, improved accessibility features, and a suite of stability fixes. These updates collectively aim to provide a more seamless and secure server management experience for users.
Key Features of Plesk Obsidian 18.0.75
Revolutionizing SSL/TLS Certificate Management
In this release, SSL/TLS certificate management has been revamped to align with contemporary security standards. Two significant enhancements include:
- Support for Short-Lived SSL/TLS Certificates: Recognizing the importance of security, Plesk Obsidian 18.0.75 now supports short-lived certificates. This feature is part of SSL It!, ensuring compliance with modern security practices and regulations, which often recommend shorter certificate lifespans to reduce the risk of compromise.
- Manual and Automatic Certificate Reissue: Users can now reissue certificates either manually or automatically. This ensures that your subscriptions remain protected without interruption. Whether you prefer a hands-on approach or automated convenience, Plesk offers flexibility to suit your needs.
Expanding Web Stack and Application Support
Plesk Obsidian 18.0.75 extends its capabilities by supporting a wider array of development stacks and applications, making it a versatile choice for developers and administrators.
- .NET 10.0 Compatibility: The platform now supports .NET 10.0 on both Windows and Linux environments. Linux users can leverage the DotNet Toolkit for easy installation and management, simplifying the deployment of .NET applications across different systems.
- Joomla! 6.x Compatibility: With the Joomla Toolkit, Plesk users can now deploy and manage Joomla! 6.x directly from the platform. This integration streamlines the process of managing Joomla sites, allowing users to take advantage of the latest features and improvements in Joomla! 6.x.
- Performance Enhancements for MariaDB® 11.8: The update also includes support for MariaDB 11.8, offering enhanced performance and compatibility for applications that rely on database operations. Users can expect smoother and more efficient database-driven application performance.
- WHMCS Installer Support for PHP 8.3: Official support for PHP 8.3 is now available for WHMCS versions 8.13 and above, ensuring compatibility with the latest PHP enhancements and security updates.
Improving Accessibility and User Experience
Plesk is committed to making its platform accessible to all users, including those with disabilities. Version 18.0.75 introduces several improvements aimed at enhancing accessibility and overall usability:
- Enhanced Keyboard Navigation: Users will find it easier to navigate through selected pages using keyboard shortcuts, improving efficiency for those who rely on keyboard navigation.
- Better Screen Reader Support: By utilizing semantic HTML, ARIA attributes, and detailed image metadata, Plesk has improved its compatibility with screen readers, making the platform more inclusive for visually impaired users.
- Plaintext Authentication Options: For Plesk on Linux, there’s a new option to enable plaintext authentication in Postfix and Dovecot. This is particularly useful for specific mail configurations that require this setup.
These updates contribute to a more user-friendly interface, ensuring that Plesk remains accessible and easy to use for everyone.
Deprecated and Removed Features
As technology evolves, certain components become outdated or less secure. To maintain Plesk’s security and compatibility with supported technologies, several components have been deprecated or removed.
PHP 8.1
With PHP 8.1 reaching its end of life on December 31, 2025, Plesk has removed it from installation presets and marked it as outdated in the user interface. Users seeking extended support can explore TuxCare Extended Lifecycle Support for PHP, which offers continued security updates for older PHP versions.
Microsoft® SQL Server® 2012 (Windows)
This version of SQL Server has been removed following its end-of-life status. Users are encouraged to upgrade to newer, supported versions to ensure continued security and performance.
Apache mod_status (Linux)
For security reasons, Apache mod_status has been disabled during upgrades. This action is a one-time measure and can be manually re-enabled if necessary, though users should be aware of the potential security implications.
APS Catalog Applications
Several applications have been deprecated and removed from the APS catalog, including AfterLogic WebMail Lite, AfterLogic WebMail Pro, Moodle, Drupal, MediaWiki, phpBB, osTicket, and TYPO3. Users relying on these applications should explore alternative solutions or self-manage their installations to ensure continued functionality and security.
Stability Enhancements and Bug Fixes
Plesk Obsidian 18.0.75 incorporates numerous stability improvements and bug fixes, many of which are driven by user feedback. These include:
- Mail Services and SSL/TLS-Related Issues: Improvements have been made to enhance the reliability and security of mail services, addressing issues related to SSL/TLS.
- Database Upgrades and Migrations: The update streamlines the process of upgrading and migrating databases, reducing potential disruptions and ensuring data integrity.
- Windows-Specific ASP.NET and Deployment Behavior: Enhancements have been implemented to improve the deployment and behavior of ASP.NET applications on Windows servers.
- Linux-Specific Improvements for MariaDB, Dovecot, Apache, and cron: Reliability improvements in these areas contribute to a more stable and predictable server environment, minimizing downtime and operational challenges.
Additionally, various third-party components have been updated on both Linux and Windows platforms to ensure ongoing security and stability. These updates include newer versions of Roundcube, MariaDB client libraries, curl, Python, OWASP ModSecurity CRS, and ImageMagick, addressing vulnerabilities such as CVE-2025-57807.
Staying Up to Date
Plesk Obsidian 18.0.75 marks a significant step forward in server management for 2025. Users are encouraged to keep their installations up to date to take full advantage of the latest features, security enhancements, and performance improvements. For detailed documentation, upgrade instructions, and the complete change log, users can refer to the Plesk Obsidian 18.0.75 release notes.
In conclusion, Plesk Obsidian 18.0.75 offers a comprehensive set of updates that enhance security, compatibility, and user experience. By addressing modern security practices and expanding support for contemporary development stacks, Plesk continues to position itself as a leading platform for server management. As we look ahead to 2025, users can expect further innovations and improvements that will elevate their server management capabilities to new heights.
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