tl;dr: Japanese researchers have developed a lithium recycling process that recovers roughly 90% of lithium from used EV batteries, nearly double conventional methods, by substituting recovered lithium hydroxide for sodium hydroxide when processing "black mass." The technique also reportedly cuts carbon emissions by about 40% versus traditional recycling. Scaling remains a hurdle, as only ~14% of Japan's used lithium-ion batteries currently enter formal recycling channels, though expanded production is planned by 2027.

tl;dr: Git 2.54 and 2.55 introduced an experimental `git history` command with three subcommands—`fixup`, `reword`, and `split`—that let you amend, rename, or split older commits and automatically rebase all descendant branches atomically. It delivers several ergonomic wins commonly associated with jj (like updating refs across branches without leaving a broken state), though it refuses conflicting operations and doesn't yet support merge commits or first-class conflicts. It's built into core git, so no extra tooling is required.

tl;dr: Once Xcode is installed and configured (Apple ID signed in, Developer ID cert created, notarytool credentials stored), you can ship Mac and iOS apps entirely from the command line using xcodebuild, notarytool, stapler, devicectl, and XcodeGen—no GUI required. The author's setup consists of a `release.sh` script that handles the archive → sign → notarize → staple → install pipeline, plus a `CLAUDE.md` file that tells Claude Code how to use it. This lets an LLM agent handle the entire build/ship workflow without ever opening Xcode.

tl;dr: Apple's new SpeechAnalyzer API (iOS/macOS 26) beat Whisper Small and all smaller Whisper variants on LibriSpeech, achieving 2.12% WER on clean speech and 4.56% on noisy speech while running ~3x faster than Whisper Small on an M2 Pro. The legacy SFSpeechRecognizer came in last at 9.02%/16.25% WER, making migration a clear win. Whisper still holds advantages in language coverage (~30 locales for SpeechTranscriber vs. 100+) and cross-platform support, but for English on Apple hardware, the built-in engine is now the strongest on-device option.

tl;dr: Researchers at VEGA disclosed GhostLock (CVE-2026-43499), a 15-year-old Linux kernel stack use-after-free in the rtmutex code, where `remove_waiter()` incorrectly clears `current->pi_blocked_on` instead of the actual waiter's during a FUTEX_CMP_REQUEUE_PI rollback, leaving a dangling pointer to freed stack memory. They chained it into a 97% reliable unprivileged root/container escape by reclaiming the stack via `prctl(PR_SET_MM_MAP)`, using an rb-tree erase to overwrite `inet6_protos[IPPROTO_UDP]`, pivoting through the CPU entry area, and flipping `core_pattern`'s mode bits — earning $92,337 in kernelCTF. Fixed in Linux 7.1.

tl;dr: Summary not available.

tl;dr: Telegram's t.me domain, used for user/channel links, has been placed on "serverHold" status by the registry, effectively suspending it from DNS resolution. WHOIS records show the domain — registered via GoDaddy with Domains By Proxy privacy protection — carries multiple prohibitions on deletion, transfer, and updates, suggesting a registry-level enforcement action rather than a registrar issue. The domain itself remains registered through 2035.

tl;dr: Frustrated by the backtracking required to dot i's and cross t's when writing English cursive (51% of words in Crime and Punishment vs. 6.4% in Russian), the author designed a single-stroke cursive script based on SmithHand. Key innovations include drawing x as mirrored c's, adding t's crossbar via a "4"-like motion, and replacing i/j dots with tight loops that flow into the stem. After months of use, the author reports writing English is now as enjoyable as writing Russian.

tl;dr: Samsung Health has added a consent toggle that requires users to allow their private health data (sleep, medications, medical records, and cycle tracking) to be used for AI training, or lose the ability to back up and sync their data. Opting out or withdrawing consent triggers deletion of health data from Samsung's servers, except where legally required to retain it. Samsung also notes that human reviewers, potentially including third-party contractors, may access some of the collected data.

tl;dr: Summary not available

tl;dr: Reverse engineering of Sega CD Silpheed's FMV format reveals how Game Arts achieved impressive full-screen cutscenes on severely constrained hardware (12.5MHz 68k, 16 colors, 150 KiB/s, no framebuffer). Rather than shrinking real video like other FMV games, they engineered upward from hardware limits using clever tricks: aggressive tile reuse for solid colors (~50% savings), exploiting the Mega-CD ASIC's "font bit" register to expand 2-color tiles from bitmaps, bitmap-based tilemap compression via auto-increment, and palette-cycling for laser/explosion effects during gameplay.

tl;dr: Vint Cerf, co-architect of TCP/IP and Google's chief internet evangelist for 20 years, is retiring next week at age 83, as announced at the Laude Institute's Open Frontier conference. Speaking on a panel about durable open source systems, Cerf predicted that the rise of AI agents will force a return to standardized protocols and interoperability, arguing that natural language is too ambiguous for reliable agent-to-agent communication.

tl;dr: Summary not available

tl;dr: The LAPD is letting its three-year contract with license plate surveillance firm Flock Safety expire, citing serious civil liberties, privacy, and data-sharing concerns, and wants new contractual language before considering renewal. As the third-largest US police department, LAPD is one of Flock's biggest customers, and its departure follows similar exits by Mountain View, CA and South Portland, ME amid backlash over privacy, sanctuary-city violations, false positives leading to wrongful stops, and security lapses exposing cameras and data.