Ubuntu 24.04 LTS “Noble Numbat” released with Linux 6.8, up to 12 years of support

Ubuntu 24.04 release

Canonical has just released Ubuntu 24.04 LTS “Noble Numbat” distribution a little over two years after Ubuntu 22.04 LTS “Jammy Jellyfish” was released. The new version of the operating system comes with the recent Linux 6.8 kernel, GNOME 46, and a range of updates and new features we’ll discuss in this post. As a long-term support release, Ubuntu 24.04 LTS gets a 12-year commitment for security maintenance and support, with five years of free security maintenance on the main Ubuntu repository, and Ubuntu Pro extending that commitment to 10 years on both the main and universe repositories (also free for individuals and small companies with up to 5 devices). This can be extended a further 2-year, or 12 years in total, for Ubuntu Pro subscribers who purchase the Legacy Support add-on. Canonical explains the Linux 6.8 kernel brings improved syscall performance, nested KVM support on ppc64el, and access to the […]

Google’s Jpegli open-source library can compress high quality images 35% more than traditional JPEG codecs

Jpegli ELO score vs other JPEG libraries

Google has released the Jpegli open-source library for advanced JPEG coding that maintains backward compatibility while delivering an up to 35% compression ratio improvement at high-quality compression settings. Google Research has been working on improving the compression of data (Brotli), audio (e.g. Lyra V2), and images with a project such as WebP for many years in order to speed up the web and make it consume less bandwidth for dollar savings and lower carbon emissions.  Jpegli is their latest project and aims to improve the compression ratio of legacy JPEG files on systems were modern compression such as WebP may not be available or desirable. Jpegli highlights: Support both an encoder and decoder complying with the original JPEG standard (8-bit) and offering API/ABI compatibility with libjpeg-turbo and MozJPEG. Focus on high-quality results with up to 35% better compression ratio. Just as fast as libjpeg-turbo and MozJPEG. Support for 10+ bits […]

Some Raspberry Pi 5 boards can be overclocked up to 3.14 GHz (and run just fine)

Raspberry Pi 5 overclocked 3.14 GHz

The Raspberry Pi 5 is advertised as a single board computer with a CPU clocked up to 2.4 GHz, but some of the boards can run stably at a higher frequency, and Jeff Geerling found out one of his boards could be overclocked up to 3.14 GHz with no issues when running a stress test. The Raspberry Pi 5 already delivers a two to three-times jump in performance against the previous generation Raspberry Pi 4 SBC when clocked at 2.4 GHz, but some already overclocked their up to 3.0 GHz, and many thought it was the maximum limit. But a recent firmware release proved them wrong, as it turns out some Raspberry Pi 5 boards can boot at 3.2 GHz and run stably at 3.14 GHz with an adequate cooling solution. The voltage was also adjusted in the config.txt to more or less safe settings. Contrary to the photo above, […]

Embedded Open Source Summit 2024 schedule – Embedded Linux, Zephyr OS, and Real-time Linux

Embedded Open Source Summit 2024

The Embedded Open Source Summit 2024 (EOSS 2024) will take place on April 16-18 and the Linux Foundation has already announced the schedule with conference sessions, lightning talks, and birds of a feather (BoF) sessions covering embedded Linux, Zephyr OS, and real-time (RT) Linux. While I won’t be attending in person, I still find it interesting to check out the schedule as we may learn more about the current status of embedded Linux. So I’ve created my own little virtual schedule out of the available talks. Tuesday, April 16 – Day 1, Embedded Open Source Summit 2024 9:05 – 9:45 – No, It’s (Still) Never Too Late to Upstream Your Legacy Linux-Based Platforms by Neil Armstrong, Linaro Nearly 7 years ago, Neil already spoke about this subject in Berlin, and it’s still very true. Do you maintain or used to maintain a Linux-based board or SoC off-tree? Then there are […]

Android 15 Developer Preview released – What’s New?

Android 15

Google has just released the first Android 15 Developer Preview with some improvements related to privacy and security, the addition of the partial screen sharing feature, camera and audio improvements, and some new performance optimization that developers can leverage when running games or other demanding applications. User privacy and security in Android 15 Android 15 features the latest version of the Privacy Sandbox on Android to improve user privacy while enabling personalized advertising experiences for mobile apps, the Heatlth Connect by Android adds support for new data types related to fitness, nutrition, and more, and the File integrity manager implement new APIs making use of the fs-verity feature that was added to the Linux 5.4 kernel so that files can be protected by custom cryptographic signatures. Partial screen sharing is a completely new feature in Android 15 that allows users to share or record an app window rather than the […]

Linux 6.7 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 6.7 release

Linus Torvalds has just announced the release of Linux 6.7, following Linux 6.6 LTS a little over two months ago: So we had a little bit more going on last week compared to the holiday week before that, but certainly not enough to make me think we’d want to delay this any further. End result: 6.7 is (in number of commits: over 17k non-merge commits, with 1k+ merges) one of the largest kernel releases we’ve ever had, but the extra rc8 week was purely due to timing with the holidays, not about any difficulties with the larger release. The main changes this last week were a few DRM updates (mainly fixes for new hw enablement in this version – both amd and nouveau), some more bcachefs fixes (and bcachefs is obviously new to 6.7 and one of the reasons for the large number of commits), and then a few random […]

Android 14 released, source code hits AOSP

Android 14

Google has just released Android 14 for supported devices such as Google Pixel phones and pushed the source code to AOSP (the Android Open-Source Project). Most of the changes to the fourteenth version of the Android operating system were introduced with the first Android 14 developer preview – released in February 2023 – which included performance improvements, better privacy and security, and additional user-side customization options. Some of the new features unveiled since the first Android 14 developer preview include: AI-generated wallpapers using text-to-image diffusion models to help users easily create unique wallpapers HDR images with Ultra HDR (Android 13 already supported HDR videos) Built-in Health Connect support to let people track their fitness, health, and wellness levels across apps in a secure way respecting privacy. Android 14 encourages users to set a six-digit PIN (or longer) to improve security. Improved accessibility with vision-and hearing-inclusive features such as an enhanced […]

MicroPython 1.20 released with Raspberry Pi Pico W support, mip package manager, smaller footprint

MicroPython 1.20 Pico W

Damien George has recently announced the release of MicroPython 1.20 with support for the Raspberry Pi Pico W board., a new lightweight package manager called mip, a smaller footprint thanks to the use of compressed type structs, and many other changes. mip package manager The new mip package manager uses a custom protocol optimized for embedded systems to query and install packages, and intends to replace upip for installing packages from micropython-lib or any URL. Mip can be run directly on a device, as long as it has network connectivity, or via mpremote from a host computer. Damien explains all pure-Python drivers have been moved from the micropython repository to the micropython-lib repository as part of the change in order to make it easier to install the packages needed for a given project. MicroPython is getting smaller The MicroPython binary size has been reduced by many kilobytes for all ports […]