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OCSP Service Has Reached End of Life

Today we turned off our Online Certificate Status Protocol (OCSP) service, as announced in December of last year. We stopped including OCSP URLs in our certificates more than 90 days ago, so all Let’s Encrypt certificates that contained OCSP URLs have now expired. Going forward, we will publish revocation information exclusively via Certificate Revocation Lists (CRLs). We ended support for OCSP primarily because it represents a considerable risk to privacy on the Internet. When someone visits a

Today's Wordle Hints, Answer and Help for Sept. 15, #1549

Looking for the most recent Wordle answer? Click here for today's Wordle hints, as well as our daily answers and hints for The New York Times Mini Crossword, Connections, Connections: Sports Edition and Strands puzzles. Today's Wordle puzzle didn't take me too many guesses. If you need a new starter word, check out our list of which letters show up the most in English words. If you need hints and the answer, read on. Today's Wordle hints Before we show you today's Wordle answer, we'll give yo

Writing an operating system kernel from scratch

Posted on: September 13, 2025 | at 09:30 AM Follow @popovicu94 I recently implemented a minimal proof of concept time-sharing operating system kernel on RISC-V. In this post, I’ll share the details of how this prototype works. The target audience is anyone looking to understand low-level system software, drivers, system calls, etc., and I hope this will be especially useful to students of system software and computer architecture. This is a redo of an exercise I did for my undergraduate cours

Show HN: A store that generates products from anything you type in search

We'll find it somewhere across parallel dimensions, just tell us what you want Experience a new way of shopping where imagination drives innovation. Our product concepts are delivered instantly to your device! All our products are unique concepts developed specifically for our customers. That Product Doesn't Exist Yet? Be the first to discover it! Give us a name and we'll find it somewhere

‘The Strangers: Chapter 2’ Opening Is a Game of Hide and Seek

You may not know it, but we’re a few weeks out from The Strangers: Chapter 2. To help drum up interest for the film, Lionsgate’s put out a clip from the first few minutes of the film, which picks up where 2024’s Chapter 1 concluded. Last we left off, Maya (Madelaine Petsch) survived the attack from the titular Strangers that left her boyfriend Ryan dead, and she ended the film recuperating in the hospital. But before she can worry about her health bill, she realizes that she’s not as free of th

ChatGPT Goes Completely Haywire If You Ask It to Show You a Seahorse Emoji

There is no seahorse emoji. The Unicode Consortium, which oversees the standardized pictograms that can be transmitted as part of text communications, has yet to add the adorable sea critter to its official emoji dictionary. Frail human minds have sometimes been surprised to learn that fact, in a perfect example of the Mandela Effect, in which people become convinced that they remember something that isn't actually real — like that South African anti-apartheid leader Nelson Mandela died in pris

Heroic Gas Station Clerk Realizes Elderly Women Are Being Scammed at the Bitcoin ATM, Unplugs It to Save Them

One of the core appeals of cryptocurrency — other than providing a get-rich-quick scheme for famous people with huge sway over their followers, like a sitting president or an airheaded influencer — is that it's decentralized and largely unregulated. Of course, that also makes it a breeding ground for fraud. Just ask Boise, Idaho gas station clerk Avalon Hardy. As Inc reports, she ended up repeatedly intervening to stop old ladies from getting ripped off by using the establishment's Bitcoin ATM

A store that generates products from anything you type in search

We'll find it somewhere across parallel dimensions, just tell us what you want Experience a new way of shopping where imagination drives innovation. Our product concepts are delivered instantly to your device! All our products are unique concepts developed specifically for our customers. That Product Doesn't Exist Yet? Be the first to discover it! Give us a name and we'll find it somewhere

Tether Taps Trump’s Former Crypto Advisor to Lead US Operations

In an effort to solidify itself as the go-to company in the cryptocurrency space for stablecoins, Tether is tapping Bo Hines, the former Executive Director of Donald Trump’s White House Crypto Council to lead its operations in the United States, including efforts to launch a new stablecoin called USAT that will comply with new, Trump-backed regulations, according to CNBC. Tether is best known for its USDT stablecoin, which is pegged to the US Dollar and has become the most commonly used token f

Hong Kong Disneyland Teases Avengers and Pixar Attractions

Disneyland Hong Kong first opened 20 years ago, and to celebrate, the company showed off concept for what’s coming in the future. Concept art below shows teases for attractions based on Marvel and Pixar. For the superheroes, one art features the Avengers headquarters, while another shows Spider-Man with Doctor Strange, Black Panther, and Thor in Asgard around a pod of parkgoers dropping through the Bifrost Bridge. This concept art—and a previously released art of Spidey holding a pod while figh

Kefir: Solo-developed full C17/C23 compiler with extensive validation

To whom it may concern, Today I release Kefir — an independent C17/C23 compiler. Solo-built. Extensively validated, for x86_64 & System-V ABI. With SSA-based optimization pipeline, DWARF-5 support and position-independent code generation. What? Implements the C17/C23 standard. Plus certain GNU C extensions. For Linux (glibc & musl), FreeBSD, OpenBSD, NetBSD. Extensive and transparent validation suite. Compiles and runs well-known open source projects — GNU core- and binutils, Curl, Git, Ngi

I used standard Emacs extension-points to extend org-mode

Recently I read this beginners guide to extend Emacs. The guide is perfect for starting out with elisp and it shows a lot of care in teaching how to interact with Emacs. To me, the most important bit though is this one, from the section aptly named Emacs Wants You to Extend It. I haven’t written plugins for other editors extensively, but I can tell you this: emacs doesn’t just make deep customization available, but it actively encourages you to make an absolute customization messes masterpiece

Emacs: A Paradigm Shift

Recently I read this beginners guide to extend Emacs. The guide is perfect for starting out with elisp and it shows a lot of care in teaching how to interact with Emacs. To me, the most important bit though is this one, from the section aptly named Emacs Wants You to Extend It. I haven’t written plugins for other editors extensively, but I can tell you this: emacs doesn’t just make deep customization available, but it actively encourages you to make an absolute customization messes masterpiece

Today's Wordle Hints, Answer and Help for Sept. 13, #1547

Looking for the most recent Wordle answer? Click here for today's Wordle hints, as well as our daily answers and hints for The New York Times Mini Crossword, Connections, Connections: Sports Edition and Strands puzzles. I'm just going to say it. Today's Wordle puzzle is a real streak-breaker. It's an unusual word, and it's tough to put the letters together. If you need a new starter word, check out our list of which letters show up the most in English words. If you need hints and the answer, re

Wysiwid: What you see is what it does

Full paper Dividing labor with LLMs. As LLMs get better at writing code, it seems inevitable that there will be less work for human programmers. Thomas Dohmke is right that low-level coding skills will matter less and that “the future belongs to developers who can model systems, anticipate edge cases, and translate ambiguity into structure—skills that AI can’t automate.” Dohmke says “We need to teach abstraction, decomposition, and specification not just as pre-coding steps, but as the new cod

An embarrassing failure of the US patent system: Nintendo's latest patents

The last 10 days have brought a string of patent wins for Nintendo. Yesterday, the company was granted US patent 12,409,387, a patent covering riding and flying systems similar to those Nintendo has been criticized for claiming in its Palworld lawsuit (via Gamesfray). Last week, however, Nintendo received a more troubling weapon in its legal arsenal: US patent 12,403,397, a patent on summoning and battling characters that the United States Patent and Trademark Office granted with alarmingly litt

How Prehistoric Humans Survived a Supervolcano So Big We Probably Should Have Gone Extinct

If you were lucky 74,000 years ago, you would have survived the Toba supereruption, one of the largest catastrophic events that Earth has seen in the past 2.5 million years. While the volcano is located in what’s now Indonesia, living organisms across the entire globe were potentially affected. As an archaeologist who specializes in studying volcanic eruptions of the past, I often think about how incredible it is that humans survived this extinction-level event that was over 10,000 times larger

California bill lets renters escape exclusive deals between ISPs and landlords

California's legislature this week approved a bill to let renters opt out of bulk-billing arrangements that force them to pay for Internet service from a specific provider. The bill says that by January 1, a landlord must "allow the tenant to opt out of paying for any subscription from a third-party Internet service provider, such as through a bulk-billing arrangement, to provide service for wired Internet, cellular, or satellite service that is offered in connection with the tenancy." If a lan

I used this ChatGPT trick to look for coupon codes - and saved 25% on my dinner tonight

Elyse Betters Picaro / ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Free ChatGPT can surface working coupon codes, but it's hit or miss. Agent on ChatGPT Plus might improve your odds of finding valid deals. Coupon or promo codes can lead to easy savings online. It's Friday afternoon, and I'm wrapping up work. I've got my daughter's 4-year checkup with shots later, which means one thing: pizza night. That should put a smile on her face after our appointm

Take a Trip to the Final Frontier With This Year’s Best Astronomy Photography

When a comet meets solar winds, its nuclear coma—a bright cloud of gas around its core—reacts vibrantly to our Sun’s solar maximum, leaving a trail of stellar gas and dust across the solar system. Miraculously, the sky above June Lake, California, cleared up for a full 13 minutes for photographer Dan Bartlett to image the comet clearly enough for his photograph, “Comet 12P/Pons-Brooks Taking a Final Bow.” With incredible technological advances, the continuous flow of space photos can sometimes

Last day to amplify your brand: Host your Side Event at TechCrunch Disrupt 2025

The countdown is on: The application to host a Side Event at TechCrunch Disrupt 2025 closes tonight at 11:59 p.m. PT. If you’ve been considering a way to amplify your brand during the week’s tech epicenter, now is the time to lock it in. Your Side Event could be the dinner everyone’s still talking about, the panel that sparks a deal, or the happy hour that launches a new collaboration. With 10,000+ Disrupt attendees in San Francisco — plus the global spotlight of TechCrunch promotion — your e

Preparing for your later-stage raise: Insider strategies from top investors at TechCrunch Disrupt 2025

TechCrunch Disrupt 2025 hits Moscone West in San Francisco on October 27–29, and if you’re aiming for big funding goals, then leaning in on this session on October 29 at the Builders Stage is essential. Three powerhouse voices in venture and AI-driven innovation will share what it really takes to close major rounds — long before you’re in the room with investors. Why this session matters Raising late-stage capital goes beyond hitting revenue targets. It’s about telling the right story, trackin

The best laptops under $1,000 of 2025: Expert tested and reviewed

People tend to equate concepts like "budget" or "low-cost" with poor quality, but that's not true. You can find plenty of high-quality laptops that cost less than $1,000. I'm talking about well-crafted, powerful computers that can compete with the best laptops on the market when tackling productivity and entertainment workloads. It certainly helps that many budget laptops were former high-end devices. Apple, for example, frequently drops the price of older MacBooks whenever a new one comes out.

Claude’s memory architecture is the opposite of ChatGPT’s

Claude Memory: A Different Philosophy How Claude memory works, how it differs from ChatGPT, and what these approaches reveal. Earlier this week, I dissected ChatGPT's memory system. Since then, I've been doing the same for Claude and realized something remarkable: these two leading AI assistants have built completely opposite memory systems. In this post, I'll start by breaking down exactly how Claude's memory works—what it stores and how it retrieves information. Then we'll get to the intere

Winklevoss-founded Gemini prices IPO at $28 per share, valuing the crypto exchange at $3.3 billion

Tyler Winklevoss and Cameron Winklevoss (L-R), creators of crypto exchange Gemini Trust Co., on stage at the Bitcoin 2021 Convention, a cryptocurrency conference held at the Mana Convention Center in Wynwood in Miami, Florida, on June 4, 2021. Gemini Space Station, the crypto company founded by Cameron and Tyler Winklevoss, priced its initial public offering at $28 per share late Thursday The company priced the offering above its expected range of $24 to $26, valuing the company at $3.3 billio

How I use a smart outlet to save money on electricity bills every month

Smart Wi-Fi power strips are a great way to save on your power bill. But do they pay for themselves? Adrian Kingsley-Hughes/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Leaving devices plugged and switched on can be wasteful. Monitoring usage and remote switching helps reduce bills. This Tapo smart power strip is a great option to monitor power consumption, and at $45, it pays for itself. I have three 3D printers that are on the go a lot of the time. I

Apple iPhone 17 event recap: iPhone Air preorders, Apple Watch 11, AirPods Pro 3, more

Jason Hiner/ZDNET Follow ZDNET: Add us as a preferred source on Google. Apple pulled back the curtain on its latest product lineup during its "Awe Dropping" keynote in Cupertino this week. The hour-long event revealed a host of new products, including the iPhone 17 series, Apple Watch Series 11, Apple Watch Ultra 3, and AirPods Pro 3. ZDNET was on-site to cover the announcements, and we've compiled a summary of the biggest news from the event. We'll continue to provide updates as we get them.

Topics: 17 apple iphone pro sept

The New York Times Mini Crossword Now Has a Paywall, but There Is a Way to Play

I'm a fan of the New York Times Mini Crossword -- a sporty, streamlined companion to the newspaper's legendary regular daily crossword. Typically, the Mini Crossword (we publish the answers daily) has roughly a dozen clues to work through -- six across-clues and six down-clues -- and you can complete it in less than a minute if all goes well. It makes me feel smart, unlike the big crossword, which sometimes makes me throw things. But in late August, some Mini Crossword players suddenly ran int

Lenovo Coupon Codes and Deals: Up to $500 Off

Lenovo is currently the biggest PC and laptop company in the world, and they just so happen to make some of our favorite laptops and PC peripherals. In fact, our list of the Best Laptops you can buy include a number of Lenovo devices that we’ve tested and fully recommend, ranging from high-end premium laptops to options for budget-minded shoppers. If you are looking to save a few bucks while shopping for a new Lenovo product, here are the Lenovo coupon codes and special offers you need to know a