This process will no doubt sound familiar to those of you who have used Linux. Most Linux distributions offer bootable images that can be flashed to a USB drive or burned to a CD/DVD. When the computer boots from the Linux drive, a complete desktop environment is present, allowing the user to easily test applications and perform other tasks. Nothing is installed to the computer’s internal drive, and all data is deleted when Linux shuts down. Android Q will include similar functionality, which is currently being called ‘Dynamic System Updates’ (though ‘Live Images’ and ‘Dynamic Android’ were also being used to refer to it). A temporary system partition is created, and an alternative Generic System Image (GSI) can be installed to it. A notification appears when the process is done, and tapping it reboots the phone into the GSI. When you’re done, simply reboot the phone, and you’re returned to your phone’s regular build of Android. This will be a very welcome feature not just for developers, but also for people like me who would love to test public beta releases before committing.

An IEEE Spectrum article outlines some interesting new OS-related research. Martin Maas, a University of California, Berkeley, PhD student who is now at Google, designed “a new type of device that relieves the CPU from its garbage collection duties.” Maas notes that CPUs, which have traditionally been assigned garbage collection, were never specifically designed for the task. “CPUs are built to be flexible and run a wide range of applications. As a result, they are relatively large and can take up a significant amount of power,” he explains.Instead, Maas and his colleagues created a compact accelerator unit that requires a small amount of chip area and power. It can be added to the CPU, similar to how many modern processor chips are integrated into graphics processing units.“While the software application is running on the CPU, this unit sits on the side and performs garbage collection for the application,” says Maas. “In principle, this means that you could build a system where the software does not have to worry about garbage collection at all and just keeps using the available memory.”

In 2017, we saw several new MCUs hit the market, as well as general trends continuing in the industry: the migration to open-source, cross-platform development environments and toolchains; new code-generator tools that integrate seamlessly (or not so seamlessly…) into IDEs; and, most notably, the continued invasion of ARM Cortex-M0+ parts into the 8-bit space. I wanted to take a quick pulse of the industry to see where everything is — and what I’ve been missing while backed into my corner of DigiKey’s web site. It’s time for a good ol’ microcontroller shoot-out.

Senator Josh Hawley (R-MO) today announced a bill that would ban loot boxes and pay-to-win microtransactions in “games played by minors”, a broad label that the senator says will include both games designed for kids under 18 and games “whose developers knowingly allow minor players to engage in microtransactions”. Loot boxes are clearly gambling, and ought to be treated as such. I’m by no means enough of a lawyer to determine if this specific proposed bill does enough – or possibly too much – to curtail the predatory practices in games, but it’s a good sign people are paying attention. We sure won’t be able to count on Google or Apple, since both of them profit greatly from these predatory practices.

With Android Q, we’ve focused on three themes: innovation, security and privacy, and digital wellbeing. We want to help you take advantage of the latest new technology — 5G, foldables, edge-to-edge screens, on-device AI, and more — while making sure users’ security, privacy, and wellbeing are always a top priority. This year, Android Q Beta 3 is available on 15 partner devices from 12 OEMs — that’s twice as many devices as last year! It’s all thanks to Project Treble and especially to our partners who are committed to accelerating updates to Android users globally — Huawei, Xiaomi, Nokia, Sony, Vivo, OPPO, OnePlus, ASUS, LGE, TECNO, Essential, and realme. Android Q doesn’t seem like a massive release, but I do like the growing number of Treble-enabled devices that can install this new beta.

Based on technology developed by Hewlett-Packard, Microsoft’s IntelliMouse Explorer arrived with a price tag that could be justified by even cash-strapped students like me. Even better, the underside of the mouse was completely sealed, preventing even the tiniest speck of dirt from penetrating its insides, and it improved on its predecessors by working on almost any surface that wasn’t too reflective. I remember getting back to my dorm room and plugging in the Explorer for the first time, wondering who had a rig fancy enough to use the included PS2 to USB adapter. There were undoubtedly a few driver installation hiccups along the way, but once Windows 98 was happy, I fired up Photoshop and strapped in for the smoothest mouse experience I’d ever had. Problem solved. The changeover from ball mice to optical mice is something few will ever rave about, but I remember it as one of the biggest changes in computer use I’ve personally ever experience. Everything about optical mice is better than ball mice, and using an optical mouse for the first time roughly two decades ago was a complete game-changer.

Today we’re unveiling the newest architecture for the Windows Subsystem for Linux: WSL 2! Changes in this new architecture will allow for: dramatic file system performance increases, and full system call compatibility, meaning you can run more Linux apps in WSL 2 such as Docker. This is a massive new release of WSL, and for the first time for consumer-facing Windows, Microsoft will be shipping a full Linux kernel with its operating system. Beginning with Windows Insiders builds this Summer, we will include an in-house custom-built Linux kernel to underpin the newest version of the Windows Subsystem for Linux (WSL). This marks the first time that the Linux kernel will be included as a component in Windows. This is an exciting day for all of us on the Linux team at Microsoft and we are thrilled to be able to tell you a little bit about it. All changes will go upstream, and the kernel itself will be updated through Windows Update. Of course, this Linux kernel, which contains patches to optimise it for WSL 2, will be fully GPL compliant, so anyone will be able to build to their own custom kernel using these patches.

Today, we’re announcing that the next release after .NET Core 3.0 will be .NET 5. This will be the next big release in the .NET family. There will be just one .NET going forward, and you will be able to use it to target Windows, Linux, macOS, iOS, Android, tvOS, watchOS and WebAssembly and more. We will introduce new .NET APIs, runtime capabilities and language features as part of .NET 5. This will be a Microsoft-heavy day, since Microsoft’s developer conference is underway.

At its Build 2019 developers conference today, Microsoft announced a slew of offerings for Windows developers, including Windows Terminal, Windows Subsystem for Linux (WSL) 2, XAML Islands, React Native for Windows, and MSIX Core. Windows Terminal, available in preview now, is a new application for command-line users that promises a user interface with “graphics-processing-unit-accelerated text rendering.” The application features tabs; tear-away windows; shortcuts; and full Unicode support, including East Asian fonts, emojis, ligatures, theming, and extensions. Windows Terminal is meant for users of PowerShell, Cmd, WSL, and other command-line applications. Windows Terminal seems to address quite a few shortcomings of Windows when it comes to its terminal – or lack thereof – and is certainly going to make a lot of developers and administrators quire, quite happy.

Since macOS 10.15 will remove support for 32bit binaries, it might be time to start preparing for this as a user. Steven Troughton-Smith linked to this older article from last year: macOS High Sierra 10.13.4 gets us a step closer to ditching 32-bit mode for apps. In fact, you can force your Mac to run only in 64-bit mode if you aren’t afraid to pay a visit to the command line. This way, you can see if any applications you use are 32bit, and if you can live without them – if not, you can start looking for alternatives.

GCC 9.1 is a major release containing substantial new functionality not available in GCC 9.x or previous GCC releases. In this release C++17 support is no longer marked experimental. The C++ front-end implements the full C++17 language (already previous GCC major version implemented that) and the C++ standard library support is almost complete. The C++ front-end and library also have numerous further C++2a draft features. GCC has a new front-end for the D language. GCC 9.1 has newly partial OpenMP 5.0 support and almost complete OpenACC 2.5 support.

With as quickly as Fuchsia is being developed, this may not be relevant for too long, but I hope that it can help at least a few people for the time being. Horus125 and I have been working on this for the past couple days or so and we’re glad we finally got it working and are happy to share our process. We still have no idea what Google intends to do with Fuchsia, but at least we can run in the Android Emulator.

GNOME 3.32 is the latest release of the most popular Linux Desktop Environment (Interface+Apps) that is used by Ubuntu, Fedora and many other Linux distributions as their default experience (with or without changes). GNOME 3.32 packs itself with new niceties such as a refreshed theme and icon set, many much-needed performance fixes, updated apps, etc. However, GNOME continues to have key areas that stick out like a sore thumb in terms of intuitiveness or convenience. I have laid them down below with links to bug reports, please treat my feedback as constructive criticism of a project that I respect, but find confusing. As a former heavy user of GNOME 2.x, I find GNOME 3 wholly unpleasant – unlike its predecessor, it seems to want to force a certain way of working on me that I just can’t wrap my head around. Add to that the numerous problems – many of which are highlighted in this article – and I just don’t see myself ever returning to the world of GNOME any time soon. KDE all the way for me.

In short, Wio is a Wayland compositor based on wlroots which has a similar look and feel to Plan 9’s Rio desktop. It works by running each application in its own nested Wayland compositor, based on Cage – yet another wlroots-based Wayland compositor. I used Cage in last week’s RDP article, but here’s another cool use-case for it. The behavior this allows for (each window taking over its parent’s window, rather than spawning a new window) has been something I wanted to demonstrate on Wayland for a very long time. This is a good demonstration of how Wayland’s fundamentally different and conservative design allows for some interesting use-cases which aren’t possible at all on X11. It’s a very different approach to windowing than most of us are used to, but I find it strangely appealing.