ARC Raiders is a hit for developer Embark Studio. The extraction shooter has had more than 700,000 players since its launch last week, according to an Instagram post from the developer on Monday, and there’s a new update out with a feature fans have been clamoring for. 

Duo matchmaking has just become much more viable in ARC Raiders, as confirmed in an update note on the developer’s site on Wednesday. Previously, two-player teams would find themselves matched in lobbies dominated by three-player squads. In a tactical third-person shooter, being at a manpower disadvantage is a big deal, and it’s even worse when loot is on the line. But earlier this week, Embark Studios pushed a silent update that prioritizes matching duos and trios in their own separate matches.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

ARC Raiders has players take the role of raiders in a post-apocalyptic Earth where robots called ARC machines have forced humans to take shelter in underground settlements. Raiders go solo or in groups to head topside to find any valuable loot and complete quests. While outside, players have to contend with the various ARC machines roaming the land as well as humans who can take a raider out and steal that loot. 

The excitement of the game stems from the extraction mechanic. To get their loot back to the settlement, players need to find extraction points such as an elevator or train. Once the extraction process starts, an alarm goes off, alerting the machines and other raiders to what’s happening, requiring players to try and survive any attacks in order to get their loot safely back to the base. 

Embark Studios says the update will prioritize matching up players in their respective queue — solos with solos, duos with duos and trios with trios. In certain regions and during off-peak matchmaking times, however, duos may still be placed into matches against squads of three people.

What else is new in the latest ARC Raiders update?

Embark Studios also said it reviewed the prices of cosmetic purchases in-game and plans to lower them. The developer says the lower prices will be live starting Thursday. Those players who purchased the higher-priced cosmetics will be compensated for the difference in the coming week. 

When is the next big ARC Raiders update? 

Also happening on Thursday is the North Line update. This patch will feature a Community Unlock Event where players can contribute resources for a tunnel project, which will unlock the fifth map, Stella Montis. Along with the event to unlock the new area, the update will have new ARC enemies, a legendary weapon and more quests. The game’s following update is scheduled for December.

ARC Raiders is out now for PC, PS5, and Xbox Series X and S consoles, and costs $40. 

The Apple Watch Ultra 3 came out earlier this year and we’re already seeing discounts. As expected, getting one of the newest and best smartwatches on the market isn’t going to be cheap. But with this deal, you’ll save $99 off the usual asking price. Just be warned, we don’t expect this early Black Friday deal to last long.

For a limited time, you’ll pay a record-low $700 for your new Apple Watch Ultra 3. Currently, the black and blue Ocean Band models are available at this price, but that’s about it. These prices often fluctuate, so we suggest checking out soon to lock in your price as Apple Watch Ultra 3 deals are likely to come and go quickly.

All Apple Watch Ultra 3 models come with cellular modems inside so you can connect them to your carrier, assuming it supports the Apple Watch’s eSIM. That’ll allow you to stay connected even when you don’t have your iPhone with you.

Hey, did you know? CNET Deals texts are free, easy and save you money.

The Apple Watch Ultra 3 comes in a large 49mm size, so it’s easy to read. Despite that huge display, Apple Watch Ultra 3 owners can expect long-lasting battery life. In fact, the Apple Watch Ultra 3 can run for up to 42 hours in normal mode and a whopping 72 hours in low-power mode.

This being an Apple Watch, it comes with all of the usual health and fitness monitoring features, as well as sleep tracking. It can monitor your heart rate, track your progress thanks to its precise dual-frequency GPS, and do a whole lot more.

If the standard Apple Watch models can’t quite live up to your busy, active lifestyle, this is the model for you. Be sure to order your new smartwatch before this deal expires.

Why this deal matters

The latest Apple Watch Ultra 3 is the best of its kind. It has a new display that’s designed to be easier to read and has an impressive battery life. It isn’t the cheapest smartwatch on the market, but if you want the best that Apple has to offer, now is the time to place your order — before this deal ends.

Looking for savings on other models? Check out all the best Apple Watch deals happening now.

Dental fillings aren’t a pleasant way to fix cavities but they’re necessary to fill holes and prevent further damage. But now a research team at the University of Nottingham in the UK is working on a gel that could help prevent tooth decay and regenerate damaged tooth enamel.

According to research published in the journal Nature Communications this month, the gel works by containing a modified version of amelogenin, a protein that helps guide the growth of enamel in infants. The gel fills holes and cracks in the teeth when applied.

«The gel was able to grow crystals epitaxially, which means it’s in the same crystallographic orientation as existing enamel,» Alvaro Mata, a professor in Biomedical Engineering and Biomaterials at the University of Nottingham, told New Scientist.

Don’t miss any of our unbiased tech content and lab-based reviews. Add CNET as a preferred Google source.

Enamel is the hard layer of the tooth that shields the softer inner layers from damage caused by general wear and tear, acid and bacteria. Tooth decay happens when the enamel layer breaks down. Enamel doesn’t regenerate naturally, and while fluoride treatment and remineralization toothpaste that uses nano-hydroxyapatite can offer a temporary fix, they aren’t a permanent solution, unlike getting a dental filling.

The new gel creates a thin yet durable layer that adheres to the teeth for several weeks, using calcium and phosphate to stimulate the growth of new crystals in the enamel. In a separate email interview with CNET Mata explained how long he expects the gel to last. «The gel is biodegradable and the process to remineralize takes approximately two weeks.It is applied once, and it will endure as native enamel would, depending on people’s health habits.» 

Research shows it works on heavily damaged enamel 

«Dental enamel has a unique structure, which gives enamel its remarkable properties that protect our teeth throughout life against physical, chemical and thermal insults,» said Dr. Abshar Hasan, a postdoctoral fellow and leading author of the study. «When our material is applied to demineralized or eroded enamel, or exposed dentine, the material promotes the growth of crystals in an integrated and organized manner, recovering the architecture of our natural, healthy enamel.»

This process was effective even when the enamel was severely worn and the dentine below was exposed, according to the research. 

«If used as a preventive solution, it can avoid getting to the dental filling stage,» said Mata. «In a way, it needs to be managed as a chronic disease where patients need to start at home with more education and care. Having said this, we have been working on this for 16 years, which has allowed us to develop quite a bit of know-how to understand, control and shape the technology. Because of this, we now have a versatile technology that will derive into multiple types of products. I believe that in the future, dental fillings will be a possibility.» 

Mata says he’s «very excited because the technology has been designed with the clinician and patient in mind. It is safe, can be easily and rapidly applied, and it is scalable.» He’s started a startup called Mintech-Bio and hopes to have the first product out next year, according to New Scientist, following the clinical trial. 

Dentists are cautiously optimistic

CNET reached out to several dentists to get their perspective on the gel.   

Bianca Velayo, general dentist in Henderson, Nevada, and multi-practice owner at PDS Health, was cautious about the timeline. 

«Dental materials like this rarely hit the market overnight, even with exciting results,» she says. «After early lab success, the real test is how it performs in the human mouth under real-world conditions: heat, saliva, bacteria, diet and daily habits. Between lab research, multiple trial phases and regulatory approval, it usually takes 5 to 10 years before we’d see a material like this in everyday dental use.»

However, Velayo also says she’s excited about the prospect of these replacing traditional dental fillings in the future. 

«This gel hints at the future of dentistry, where we could actually regrow what’s been lost. It’s the difference between repairing and truly healing the tooth,» she says.

Another dentist and multi-practice owner at PDS Health, Ahmad Mokbil, said that the treatment has potential but he doesn’t believe it’ll be possible anytime soon, as it requires a shift in educating patients, dentists, dental coverage and treatment protocols. However, he pointed to existing technology that’s in use. 

«We use an FDA-approved treatment called Curodont, which has similar characteristics and is effective for treating early tooth decay,» Mokbil says. «The number of applications required can vary depending on how the tooth responds, the size of the cavity and how early the intervention takes place.»