Linux kernel development continues at a very good pace and the community He already has it in his hands Linux 7.1-rc1, the first release candidate of the new branchFollowing the recent launch of Linux 7.0 stableThe project has barely taken a break and has closed the so-called merge window, the period in which major new features and changes are integrated before focusing on testing.
With this integration window now closed, the focus shifts to Intensive testing of new features and detection of potential bugsIt is expected that, barring major setbacks, Linux 7.1 will arrive as a stable version around mid-June, giving distributions such as Debian, Ubuntu, openSUSE, and Fedora time to start planning its inclusion in future versions.
What does the arrival of Linux 7.1-rc1 mean?
The release of Linux 7.1-rc1 marks the point at which New features are no longer accepted and the stabilization phase beginsAs Linus Torvalds explained, the code that came in during the merge window is now frozen, and from now on, the next release candidates (rc2, rc3, etc.) will be dedicated to correcting errors, polishing details, and validating that there are no major regressions in performance or compatibility.
At this stage, it is common for approximately the following to occur. seven rounds of candidate versionsDuring these sessions, developers, system administrators, and advanced users test the new kernel in various environments. The goal is to locate bugs, report them to the kernel mailing lists, and verify that the proposed solutions do not introduce new problems—something especially important on servers and production systems, where stability is usually paramount.
NTFS driver rewrite and improvements for dual-boot environments
One of the most notable changes in Linux 7.1 is the complete rewrite of the NTFS driver in the kernelThe result of several years of work, this new driver aims to become the standard option for accessing NTFS partitions from Linux, replacing previous solutions that, while functional, were more limited in performance and features.
For those who use equipment with dual boot between Windows and LinuxThis improvement can make a significant difference. The new code promises faster data transfers and more secure management of the NTFS file system, reducing the risk of corruption on disks shared between the two systems. In a context where many small and medium-sized businesses and professionals combine Windows for certain business applications with Linux on servers or workstations, this advancement facilitates a smoother workflow without the need for external tools.
In addition to the increased speed, a Improved integration with the latest versions of NTFS used by WindowsThis will help system administrators and technical support teams to have fewer incidents related to permissions, data consistency, or partition mounting problems in mixed environments.
New architectures, SoCs and hardware support
Linux 7.1 also incorporates a significant block of support for new hardware and System-on-Chip (SoC) platformsThis version adds 12 new SoCs, further expanding the range of devices compatible with the kernel, from embedded boards to consumer-oriented and industrial applications.
Among the new hardware features, the following stand out: specific drivers for Lenovo devicesExamples include drivers for the Legion Go handheld console and a new fan controller for certain Yoga models. These kinds of improvements are especially welcome in a market where the adoption of brand-name laptops is widespread and users value good power management, noise reduction, and temperature control under Linux.
The kernel also adds compatibility with various audio hardware and additional peripheralsThis aims to ensure that headphones, sound cards, docks, and other accessories function correctly without requiring complex configurations. For hardware distributors and resellers, having a kernel that recognizes more components by default reduces support costs and makes it easier to offer systems with Linux pre-installed.
Security improvements and performance optimizations
In the area of ​​security, Linux 7.1 introduces improvements in features such as Intel Linear Address Space Separation (LASS)LASS is a technology designed to more strictly segment the address space and reduce attack surfaces related to certain types of exploits. In this release, LASS support is considered to be in good shape, which opens the door for more distributions to enable it or better integrate it into their default configurations in future releases.
Along with that, the kernel comes with multiple performance optimizations These improvements are distributed across different subsystems, from storage and networking to memory management and graphics controllers. They don't always translate into dramatic increases in synthetic benchmarks, but they can provide a feeling of a more responsive system or a slight reduction in CPU usage under certain common server and workstation loads.
Regarding acceleration and compression, the support also stands out. Intel QAT (QuickAssist Technology) for ZstdDesigned to offload compression and decompression tasks to specialized hardware, this could be of particular interest to data centers, cloud service providers, or companies handling large volumes of data in countries like Germany, France, or Spain, where energy efficiency and infrastructure costs are key factors.
Advances for AMD Zen architectures and other processors
The new kernel continues to delve deeper into the Enabling and optimizing the AMD Zen 6 architectureThis paves the way for future generations of the company's processors. While many of these features won't be immediately available on the market, they lay the foundation for robust kernel support from day one when new chips arrive in desktops, laptops, or servers.
Meanwhile, controllers and settings continue to be fine-tuned for platforms based on AMD EPYC processors and other high-performance rangesThe first performance tests carried out with the Git state of Linux 7.1, compared to stable Linux 7.0, point to several improvements in certain workloads, although possible regressions have also been detected that will need to be ironed out in the next release candidates.
Code debugging: outdated hardware falling behind
Linux 7.1 doesn't just add code; it also removes a significant amount of drivers and support for legacy hardwareAmong the most striking changes is the start of the gradual withdrawal of support for Intel i486 CPUs, an architecture with almost four decades behind it that, although it can still be found in very specific systems, has long since ceased to be relevant for most users.
This cleaning also includes the removal of certain very old network driversThis includes dropping support for some SoCs that had little lifespan and removing obsolete PCMCIA drivers. The goal is to reduce the maintenance burden on kernel developers and minimize security risks associated with very old and poorly tested code.
Despite these prunings, the kernel codebase continues to grow and is now located below 40 million lines, but very close to that figureThis magnitude illustrates both the complexity of the project and the diversity of devices it covers, from small embedded systems to large servers serving millions of users.
Performance tests and first impressions
With the merge window practically closed, various laboratories and specialized media outlets have begun to Test the current state of Linux 7.1 in real-world scenariosIn some environments with servers based on new generation AMD EPYC processors, the first rounds of benchmarks point to a positive trend in performance compared to Linux 7.0, although these conclusions are still preliminary and limited to specific configurations.
These comparative tests are usually performed on server-oriented distributions, such as Ubuntu Server or similarUsing modern hardware with large amounts of DDR5 memory and state-of-the-art NVMe storage, this data will help system administrators assess when to upgrade to Linux 7.1 in production environments, once the stable version is available and distributions integrate it with their own patches and tweaks.
In parallel, projects like Phoronix have already begun Linux 7.1-rc1 test suiteAnd over the next few days and weeks, more details will be revealed about specific improvements in graphics, input/output, and performance under different workloads, which will be key for companies that rely on Linux for critical services.
Community participation and access to the code
As usual, the source code for Linux 7.1-rc1 is available at the Linus Torvalds official Git repositoryFrom there, any advanced user or developer can download, compile, and test it on their own machine. Torvalds' invitation is clear: this development phase requires those comfortable compiling kernels to use rc1 and report any issues as soon as possible.
This open testing cycle is especially relevant where Many public administrations, universities, and technology companies are betting on Linux in their infrastructures. The greater the number of scenarios and configurations tested, the easier it will be to detect flaws that might go unnoticed in a more limited set of hardware.
Linus Torvalds has already distributed his usual release message on the kernel mailing lists, although Communication has been slightly delayed Compared to other occasions, there were minor email issues, something that has happened before. In any case, RC1 is available and the community testing machinery is up and running.
With the release of Linux 7.1-rc1, the project enters a phase that combines significant new features—such as the rewriting of the NTFS driver, expanded support for SoCs, and improved security with technologies like LASS—with a necessary cleanup of old code. This includes the beginning of the farewell to CPUs like the Intel i486 and outdated network and PCMCIA controllers. If the schedule is met, distributions will be able to count on a more modern, refined kernel in a few weeks, better adapted to both the latest generation hardware and the real needs of servers, desktops, and laptops in today's market.