The Daily Index — Thursday, February 12, 2026 · TLDR Index

Across today’s newsletters

Today’s Index

TLDR

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tines.com

TLDR AI

GLM-5: FROM VIBE CODING TO AGENTIC ENGINEERING

GLM-5 is a new MIT-licensed model with 754 billion parameters. It delivers significant improvement compared to GLM-4.7 across a wide range of academic benchmarks and achieves best-in-class performance among all open-source models on reasoning, coding, and agentic tasks. GLM-5 is designed for complex systems engineering and long-horizon agentic tasks. It has been open-sourced on Hugging Face and ModelScope and can be tried for free on Z.ai.

simonwillison.net · 1 min

TLDR Dev

IT'S ABOUT TO GET A LOT EASIER FOR YOUR JAVASCRIPT TO CLEAN UP AFTER ITSELF

JavaScript is getting a using keyword, the first new way to declare a variable since const and let in 2015. It automatically cleans up resources (file handles, connections, and streams) when they go out of scope, so you don't have to remember to call close() or abort() yourself. It already works in every major browser except Safari.

piccalil.li · 14 min

TLDR InfoSec

NEW 'ZERODAYRAT' SPYWARE KIT ENABLES TOTAL COMPROMISE OF IOS, ANDROID DEVICES

A new commercial mobile spyware toolkit, ZeroDayRAT, sold via Telegram and analyzed by iVerify, offers nation-state-level capabilities, including live camera and microphone feeds, keylogging, GPS tracking, bank credential theft, and crypto clipboard hijacking, for both Android and iOS devices. The self-hosted kit uses a builder model in which operators generate payloads for their own infrastructure, distributing them via phishing, smishing, or trojanized apps. The creators deliberately obscure attribution by advertising in five languages and mixing Chinese, Russian, and Indian targeting indicators. Takedown efforts have been complicated by the decentralized operator model and Telegram's slow enforcement, making this a persistent threat with few available IoCs beyond unusual battery drain and unexplained financial transactions.

links.tldrnewsletter.com · 5 min

TLDR Crypto

HONG KONG EXPANDS CRYPTO RULES TO ALLOW MARGIN TRADING AND PERPS

Hong Kong's Securities and Futures Commission has presented a new framework that allows licensed platforms to offer crypto perpetual contracts to professional investors and enables brokers to provide margin financing using assets like bitcoin and ether as collateral, subject to strict risk controls. The move aims to deepen liquidity, improve price discovery, and better integrate traditional finance with digital assets, signaling Hong Kong's continued push to position itself as a regulated global crypto hub focused on market quality over rapid expansion.

links.tldrnewsletter.com · 3 min

TLDR

MUSK RESTRUCTURES XAI'S TEAMS AFTER CO-FOUNDERS DEPART

Elon Musk has restructured xAI following the exit of two of its co-founders earlier this week. xAI will now be organized into four core areas: Grok's chatbot and voice product, Coding, the Imagine video product, and Macrohard. The company plans to launch a new X Chat app and X Money in the coming months. It is currently looking to hire.

links.tldrnewsletter.com · 4 min

TLDR

APPLE'S LATEST ATTEMPT TO LAUNCH NEW SIRI RUNS INTO SNAGS

Several highly anticipated Siri functions may be pushed back as testing has run into snags in recent weeks. Apple now plans to spread out new capabilities over several versions, so some features will be postponed until iOS 26.5 or iOS 27. One feature especially likely to slip is the expanded ability for Siri to tap into personal data. Another feature running behind schedule is voice-based control of in-app actions. While early support for these features exists, they don't function reliably in all cases.

links.tldrnewsletter.com · 9 min

TLDR

SCENT, IN SILICO

Tech is starting to turn to AI to probe the possibility of digitizing smell in the hopes of understanding and manipulating this sensory modality. Programming smell may illuminate many mysteries about the sense. It could also have many practical applications, for example, computational smell could help detect gas leaks, reduce reliance on intensive natural ingredients for perfume, or lead to the creation of entirely novel smells. This article takes a look at the state of the research and the future of the industry.

press.asimov.com · 37 min

TLDR

CHINA SHOWCASES NEW MOON SHIP AND REUSABLE ROCKET IN ONE EXTRAORDINARY TEST

China's space program successfully carried out a flight of a new reusable booster and crew capsule late Tuesday. The Long March 10 rocket and Mengzhou spacecraft are core elements of China's lunar architecture. The US and China are racing to accomplish the next human landing on the Moon in a competition for national prestige and lunar resources. The successful test moves Chinese engineers closer to human-rating the Mengzhou crew capsule. A video recapping the test flight is available in the article.

arstechnica.com · 6 min