Joplin is an open-source
note-taking application designed to handle taking many kinds of notes,
whether it is managing code snippets, writing documentation, jotting
down lecture notes, or drafting a novel. Joplin has Markdown support,
a plugin system for extensibility, and accepts multimedia content,
allowing users to attach images, videos, and audio files to their
notes. It can provide synchronization of content across devices using
end-to-end encryption, or users can opt to stick to local storage
only. Joplin even offers a command-line
version for terminal-based usage. Joplin
3.2, the most recent feature release, brought long-awaited
multi-window support, multi-column layouts, enhanced accessibility,
and theme detection.
The Linux 6.15 merge window ended on Sunday with the release of Linux 6.15-rc1. There is a lot of exciting features and updates that were merged during the two-week merge window. Here is a look at all of the most prominent changes to be found with Linux 6.15.
Quite a bit of work has been done in recent years to allow the kernel to
make more use of large folios. That progress has not yet reached the
handling of text (executable code) areas, though. During the
memory-management track of the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit, Ryan Roberts ran a session on how that
situation might be improved. It would be a relatively small and contained
operation, but can give a measurable performance improvement.
Wildlife crossings help decrease the millions of vehicle collisions with large animals that occur every year in the US
The kernel makes extensive use of per-CPU data as a way to avoid contention
between processors and improve scalability. Using the same technique in
user space is harder, though, since there is little control over which CPU
a process may be running on at any given time. That hasn’t stopped Mathieu
Desnoyers from trying, though; in the memory-management track of the 2025
Linux Storage, Filesystem, Memory-Management, and BPF Summit, he presented
a proposal for how user-space per-CPU memory could work.
Allied has finally launched its long-teased second-generation Able, with the new gravel race bike able to accept up to a whopping 2.25in / 57mm tyre.
The distinctive elevated driveside chainstay of the outgoing model is no more, and the new Able also drops a significant amount of weight over its predecessor.
There’s also a nifty down tube storage solution, where the storage hatch is independent of the bottle cage.
We first spotted the new Able at Unbound 2024, where Payson McElveen tested a prototype which saw her take eighth place in the 200-mile event and Taylor Lideen also raced it in the 350-mile race.
The Able is available now, with the cheapest SRAM Rival eTap AXS build retailing from $6,775 and rising up to $11,500 for the top-tier SRAM Red XPLR AXS build.
A frameset, which includes a stem and seatpost, retails from $4,500.
The Able is the latest in a slew of new gravel bikes embracing larger-volume mountain bike tyres.
It has clearance for 57mm / 2.25in tyres, matching the Lauf Seigla and 3T Extrema Italia – although it’s bested by the Ridley Ignite GTX and Lee Cougan Innova Super Gravel, which can take up to a 58 and 61mm tyre, respectively.
Allied says it chose this clearance because it believes 2.25in are “the fastest available tyres”, although it acknowledges its initial test mules had a 2.1in / 53mm clearance.
For context, the outgoing Able was optimised around a 42mm tyre but could take up to a 43mm out back, and a 47mm up front.
The outgoing Able was instantly recognisable for its elevated driveside chainstay, which Allied claimed improved the bike’s rear-end stiffness and also allowed the brand to run short 420mm chainstays.
Speaking to BikeRadar, Sam Pickman, head of product, said the brand removed this so its athletes could have the flexibility to run a 50t chainring with a wide-range 10-52t cassette.
Pickman explains: “to make that combination work, the elevated chainstay would have had to be really high, which would have created a whole host of other structural issues we wanted to avoid”.
Like its predecessor, the new Able is only compatible with 1x drivetrains, although when we spotted Taylor Lideens riding a prototype last year, he was riding a 2x Shimano GRX Di2 set-up.
Allied says the new Able has been designed for the demands of gravel racing and went through eight prototypes before settling on the final design.
Like Allied’s other bikes, the carbon frame is made in its Rogers, Arkansas facility – bypassing the typical Asian production most brands utilise.
A size medium (56cm) frame is claimed to weigh 950g (although Allied doesn’t reveal whether that’s painted or with hardware) – a 340g decrease over the previous model.
The accompanying fork is claimed to weigh 425g.
The new frame is claimed to have a 15 per cent reduction in front-end lateral stiffness over its predecessor, which Allied says is to improve handling and “help the bike feel more planted on rough roads”.
The rear end has a 20 per cent increase in lateral stiffness to improve pedalling efficiency, according to the brand.
Allied says the new fork is designed to match the frame’s stiffness and went through several variants before settling on the final design, and says it received feedback from some of its riders that the earlier forks were too stiff.
In a sign of its racing intent, the new Able is largely bereft of mounting points, retaining a pair of top tube mounts but losing the under-the-down-tube mounts of the previous model.
Elsewhere, the Able runs on a BSA 68mm threaded bottom bracket standard and a round 27.2mm seatpost, with routing for a dropper post.
The Able is now fully integrated and uses Allied’s ST03 adjustable stem from its Alfa road model.
The brand says riders can swap between two rise options (0 and -8-degrees) without needing to re-cable the bike. The ST03 will be available in lengths from 70 to 130mm.
The new Able comes equipped with down tube storage, but its design differs from almost every other manufacturer in that the storage door is independent of the bottle cage.
Allied says this design not only saves weight versus under-the-bottle designs, but improves operation and gives you the peace of mind of traditional bottle security.
We believe this to be the first of its kind on a gravel bike, but the design isn’t new on mountain bikes – a similar setup can be found on the Canyon Exceed and YT Jeffsy.
The Able will be offered in five sizes from XS (52cm) to XL (61cm). Allied says the new geometry “improves high-speed stability without sacrificing the nimble handling required for the technical terrain riders encounter today”.
Pickman further elaborates that Allied’s primary goal was to “position the rider comfortably yet aggressively, while carefully balancing the front and rear centre to achieve an optimal weight distribution of approximately 53/47 over the rear and front tyres”.
The head tube angle has been slackened by 0.5-degrees to 71-degrees on a size medium with a 71mm fork trail (the outgoing Able had a 66mm trail across most sizes).
Allied says it deliberately decided on these numbers “to increase confidence on varied terrain while ensuring the bike retains the necessary handling agility for navigating unpredictable situations”.
Elsewhere, there’s a 74-degree seat tube angle (except for the smallest XS size) and the reach has grown by 13mm on a size medium to 400mm, but the stack remains identical at 575mm.
| | XS / 52cm | S / 54cm | M / 56cm | L / 58cm | XL / 61cm |
|---|---|---|---|---|---|
| Seat Tube Length (mm) | 460 | 500 | 530 | 550 | 570 |
| Effective Top Tube (mm) | 534 | 554 | 564 | 580 | 591 |
| Head Tube Length (mm) | 97 | 113 | 135 | 156 | 177 |
| Head Tube Angle (°) | 70.5 | 70.5 | 70.5 | 70.5 | 70.5 |
| Seat Tube Angle (°) | 75 | 74 | 74 | 74 | 74 |
| Front centre (mm) | 611 | 622 | 633 | 651 | 663 |
| Wheelbase (mm) | 1,039 | 1,049 | 1,061 | 1,078 | 1,090 |
| Stack (mm) | 540 | 555 | 575 | 595 | 615 |
| Reach (mm) | 390 | 395 | 400 | 410 | 415 |
| Rough frame weight (g) | 900 | 930 | 950 | 970 | 1,030 |
As well as a frame-only option, Allied will be offering three SRAM-equipped builds.
While the brand has provided a starting price for the builds, the final price will vary depending on paint and specific component choices.
Wahoo has announced updates to its Roam and Bolt bike computers, headlining with improved screens and the integration of the brand’s overhauled user interface which debuted on the Elemnt Ace.
The Elemnt Roam 3 sees a touchscreen installed for the first time, with a small increase in size.
The smaller Elemnt Bolt 3 has received a similar screen update, although this remains non-touchscreen.
But the LED indicators – which ran along the outgoing Bolt and Roam’s bezels – have been dropped from the new bike computers.
Both have seen visible changes to their form factor, but Wahoo hasn’t shared detailed specifications.
The Roam 3 is set to cost £399.99 / $449.99 / € 449.99 / AU$749.95, and the Bolt 3 £299.99 / $329.99 / €329.99 / AU$549.99. Both will be available to buy from Tuesday 6 May.
The Wahoo Elemnt Ace, which launched in December 2024, remains at the top of the Wahoo computer tree, so the latest Roam slots in between it and the smaller Bolt.
The LED indicators – which previously inhabited the top and left-hand edge of the bezel – are no more, dropped in favour of an improved screen.
This has enlarged to 2.8in (measured diagonally) from 2.7in, with thinner side bezels, and which Wahoo claims is anti-reflective. The ambient light sensor has also shifted from the top-left corner to the top-centre.
The screen is now touch-sensitive with pinch, zoom and swipe capability, but Wahoo has retained the three soft-function buttons on the bottom of the device, plus the two toggle buttons and power button.
When it launched the Elemnt Ace, the brand claimed that this dual functionality gave riders operational choice. Specifically, the buttons were said to be especially useful in the rain, and when wearing winter gloves.
Wahoo’s render images suggest that the screen is also more detailed, possibly with a higher pixel count and more colour range – the previous Roam V2 could only produce 64 colours – although the brand hasn’t confirmed this.
Navigation and mapping has been improved, and voice prompts are also part of the updated feature set.
The overall form factor appears slightly longer and narrower (Wahoo hasn’t shared detailed specs), with a similar depth. It uses the same click-mount interface, although it’s unclear yet whether the supplied out front mount (which features a supporting frame) has been modified.
Wahoo says the Elemnt Roam 3’s battery will last for “up to 25 hours”, a marked improvement on the previous Roam’s 17 hours claim (which we found to be close to the mark in real-world testing).
This indicates that the battery capacity has been updated, alongside potential improvements to the device’s battery management and internal components – albeit, again, this hasn’t been confirmed.
This is also linked to the brand’s updated software and Wahoo app, which debuted on the Elemnt Ace, and has now been rolled out across the Roam and Bolt 3.
This sees a refined interface on start-up, as well as full setup and customisation of the screens carried in the app.
The Wahoo Elemnt Bolt 3 has seen similar updates to its screen and design, with a slight bump in screen size (and detail, judging from the brand’s press images). The LED indicators have been dropped from the top bezel.
Like the Roam 3, the ambient light sensor has shifted to the top centre of the device.
The Bolt 3 remains the brand’s smallest and cheapest bike computer, and continues to be pitched as “compact and aerodynamic”.
That said, close inspection of the Wahoo’s supplied images reveals that the Bolt 3 is thicker compared to the previous generation, suggesting an overhaul under the hood.
Wahoo’s claimed run time has increased from 15 to “up to 20 hours”, hinting that a larger battery could be the main cause for this.
As with the Roam 3, though, exact hardware specifications have yet to be shared.
Wahoo says the new Elemnt Roam and Bolt 3 computers will be available to buy on Tuesday 6 May.
Our test units are soon to arrive at BikeRadar HQ, when we’ll get to grips with all the changes and report on whether you should think about upgrading.
Wahoo has launched the Trackr Radar – the brand’s first rear view vehicle detection system.
In a similar vein to Garmin’s Varia radar products, it’s designed to pair with the brand’s own bike computers – although Wahoo says it will also work with “other compatible Bluetooth or ANT+ bike computers.”
Wahoo has yet to confirm an on-sale date, but says the unit will cost £179.99 / $199.99 / €199.99/ AU$349.95 when it does become available.
The Wahoo Trackr Radar doesn’t rip up the rearview radar rulebook – like other radar systems, it works by sending a millimetre wavelength radar signal out, receiving the bounced-back signal from objects behind, then transmitting this data by ANT+ or Bluetooth to display on a compatible bike computer.
Upon detecting an approaching vehicle, the built-in rear light powers up its flash pattern and brightness to increase rider visibility.
Wahoo says the Trackr Radar is designed to integrate natively with the brand’s Elemnt ecosystem of bike computers, but that the device also works with other devices, such as Garmin edge bike computers and smartwatches.
It’s worth noting that Garmin’s Varia devices also work with Wahoo computers – meaning neither brand is intentionally locking you out of using its radar system if you use the other’s computer.
That said, testing will reveal if functionality is different depending on which computer you’re using, such as the Hammerhead Karoo and Coros Dura.
The Trackr Radar also features an accelerometer, which detects braking, upping its output and flashing more aggressively when the rider decelerates.
Wahoo says the light reduces in brightness when there’s no traffic around, saving battery life in the process. It suggests the Trackr Radar can provide up to 20 hours of burn time.
The American brand has yet to confirm the full technical specification of the Trackr Radar, including light modes, lumen counts and weight – although we’ll soon be putting our test unit to the test against its natural rival, the Garmin Varia RTL515.
Wahoo has yet to confirm when the Trackr Radar will be available to buy, but says it will cost £179.99 / $199.99 / €199.99/ AU$349.95.
Garmin’s Varia RTL515 is the same in the US and Europe, but £10 cheaper in the UK and AU$20 more expensive in Australia.
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