Amazon AWS today announced Graviton5 as their newest-generation ARM64 server processor for their EC2 cloud. Graviton5 is being promoted as offering 25% higher performance over existing Graviton4 processors.

Graviton5 will offer up to 192 cores per chip, 5x larger L3 cache, and "leading" energy efficiency. Graviton5 EC2 servers will also feature up to 15% higher network bandwidth and up to 20% higher Amazon Elastic Block Store bandwidth.

NVIDIA just released CUDA 13.1 for what they claim is " the largest and most comprehensive update to the CUDA platform since it was invented two decades ago. " The most notable addition with the CUDA 13.1 release is CUDA Tile as a new tile-based programming model.

CUDA Tile brings a virtual ISA for tile-based parallel programming and at a higher-level than Single-Instruction, Multi-Thread (SIMT).

The many hardware monitoring (HWMON) subsystem updates were merged today for Linux 6.19 that is predominantly around delivering new hardware support.

There are several new HWMON drivers with Linux 6.19 including the Apple Silicon SMC, TSC1641 I2C power monitor, MPS MP9945, MAX17616, and MP2925 and MP2929. Of those the Apple Silicon SMC is quite notable.

This "macsmc_hwmon" Apple

The out-of-tree Bcachefs file-system is ready with its reconcile feature, which previously was known as "rebalance_v2", and what lead developer Kent Overstreet calls the biggest feature to this copy-on-write file-system in the last two years.

Overstreet announced today that the Bcachefs reconcile feature is ready:

"Biggest new feature in the past ~2 years, I believe. The user facing stuff may be short and sweet - but so much going on under the hood to make

Developers behind Redox OS, the original open-source operating system written from scratch in the Rust programming language, have ported Wayland to it with initially getting the Smallvil Wayland compositor up and running along with the Smithay framework and the Wayland version of the GTK toolkit.

The Redox OS project published their November 2025 status update where one of their main accomplishments for the past month is getting these initial Wayland components up and running on it. Before getting too excited though, they note that the Wayland compositor's performance

The open-source SVT-VP9 project started by Intel as a high performance VP9 video encoder has seen its first new release in five years.

Coming as much surprise today is the release of SVT-VP9 v0.3.1, the first update to this former Intel open-source project since t he v0.3.0 release back in October 2020. The SVT-VP9 encoder was part of Intel's Scalable Video Technology ( SVT ) initiative under their

The Linux kernel's printk code for logging kernel messages has some useful improvements with the Linux 6.19 kernel.

First up is the possibility to "significantly" speed up the Linux boot process for some systems by releasing the console lock between reach record in the KThread used for legacy consoles on real-time (RT) kernels. If you are using a legacy console on a Linux RT system, the boot time can be much better with Linux 6.19.

The change to release the console lock

The "timers/core" pull requests for updating Linux kernel timer-related code doesn't tend to be too interesting each kernel cycle, but this time around for Linux 6.19 it is for addressing a problem HPE discovered on big NUMA servers.

Linux 6.19 fixes a timekeeper CPU issue that could lead to a large number of CPU cores getting stuck on very large NUMA servers. The pull request noted:

"Prevent a thundering herd problem when the timekeeper CPU is delayed and a large number