After a year of development, SUSE release of the industrial distribution SUSE Linux Enterprise 15 SP1. SUSE 15 SP1 packages are already as a foundation in the community-supported distribution of openSUSE Leap 15.1. Based SUSE Linux Enterprise also formed products such as , , SUSE Manager and SUSE Linux Enterprise High Performance Computing. Distribution can be and is free to use, but access to updates and patches is limited to a 60-day trial period. The release is available in builds for the aarch64, ppc64le, s390x, and x86_64 architectures.
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- Simplified and accelerated the ability to migrate openSUSE server installations to the production SUSE Linux Enterprise distribution, which allows system integrators to first build and test a working solution based on openSUSE, and then switch to a commercial version with full support, SLA, certification, long release updates and advanced tools for mass introduction. Repository provided for SUSE Linux Enterprise users , which provides access to additional applications and new releases maintained by the openSUSE community;
- SUSE Linux Enterprise Server edition for ARM64 architecture doubled the number and expanded hardware support. For example, for 64-bit Raspberry Pi boards, support for audio and video transmission via HDMI has been added, the Chrony time synchronization system has been included in the composition, and a separate ISO image has been prepared for installation;
- Work has been done to optimize performance and reduce latency when used on systems with Intel Optane DC persistent memory and XNUMXnd generation processors ;
- Full support is provided for the AMD Secure Encrypted Virtualization (AMD SEV) protection mechanism, which allows for transparent encryption of virtual machine memory, in which only the current guest system has access to the decrypted data, and other virtual machines and the hypervisor receive encrypted data when they try to access this memory;
- Added support for encrypting individual memory pages using the SME (Secure Memory Encryption) technology introduced in AMD processors. SME allows you to mark memory pages as being encrypted, after which the page data will be automatically encrypted when written to DRAM and decrypted when read from DRAM. SME is supported in AMD processors since the 17h family;
- Introduced experimental support for transactional updates, which update the distribution in atomic mode, without separately applying the new version of each package. The implementation of transactional updates is based on the capabilities of the Btrfs file system, standard package repositories, and familiar snapper and zypper tools. unlike the previously available system of snapshots and rollback of package installation operations, the new method creates a snapshot and performs an update in it without touching the running system. If the update is successful, the updated snapshot is marked active and used by default after a reboot;
- Simplified installation using the modular "Modular+" architecture, where specific features such as server products, desktop, cloud systems, developer tools and container tools are packaged as modules, updates and fixes for which are released as part of a separate support cycle and can be formed more quickly, without waiting for the update of the entire monolithic distribution. Products such as SUSE Manager, SUSE Linux Enterprise Real Time, and SUSE Linux Enterprise Point of Service are now available for plug-in installation;
- The resolv.conf configuration file has been moved from the /etc directory to /run (/etc/resolv.conf is now a symbolic link);
- Disabled dynamic memory allocation mode for the Xen root environment. For dom0, 10% of the RAM size + 1GB is now allocated by default (for example, if there is 32GB of RAM, 0 GB will be given to Dom4.2);
- Improved GNOME performance on high pixel density (HiDPI) systems. If the screen DPI is greater than 144, then GNOME now automatically applies 2:1 scaling (the value can be changed in the GNOME Control Center). Fractional scaling and use of multiple monitors with different DPI is not yet supported. As in the previous release, GNOME 3.26 is offered as a desktop, on x86-64 systems it runs on top of Wayland by default;
- Added the GNOME Initial Setup Wizard (gnome-initial-setup), launched on first login after installation, which offers options for configuring the keyboard layout and input methods (other GNOME Initial Setup options are disabled);
- Btrfs adds support for a free block cache (Free Space Tree or Free Space Cache v2), storing the swap partition in a file, and changing the UUID metadata;
- Python 2 is excluded from the base distribution and only Python 3 is left (Python 2 is now available as a separately installed module).
Source: opennet.ru