TLDR 2025-12-05

Ready for 2026? Throughout December, Contentful will be revealing 12 marketing need-to-knows for 2026.

🔑 A new door will unlock every Monday, Wednesday, and Friday from December 1st to December 26th.

🚪 Behind each door you'll find a TLDR overview of an essential skill or insight — plus opportunities to deepen your understanding with in-depth guides, webinars, videos, and more.

It's a virtual countdown for marketers who want to go big in 2026 -- you're guaranteed to find something you like.

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Warner Bros. Discovery (WBD) is moving forward with exclusive deal talks with Netflix. Netflix offered WBD $30 a share for the studio and streaming assets. The deal includes a $5 billion break-up fee. Netflix obtaining WBD's assets could dramatically reshape the entertainment landscape and give Netflix even more power over Hollywood.

Meta is expected to meaningfully cut resources to the metaverse project, an effort once framed as the future of the company. Executives are considering potential budget cuts as high as 30% for the metaverse group next year. This will likely include layoffs. The savings are expected to funnel towards other projects within Meta's Reality Labs division.

SoftBank Group is hammering out the details of a plan that could see CEO Masayoshi Son marshaling hundreds of billions of dollars to build Trump-branded industrial parks around the US. The facilities will be largely built on federal lands using funds pledged by the Japanese government as part of a recent trade deal. They will produce components for artificial-intelligence infrastructure. The funds could be flowing as soon as early 2026.

ARMR Sciences is launching a trial to test its fentanyl vaccine in people for the first time. The vaccine is designed to be given to people before they use the drug. It neutralizes fentanyl in the bloodstream before it reaches the brain, preventing the respiratory failure that comes with overdose, as well as the euphoric high people get when taking the drug. ARMR is testing an injectable vaccine in the upcoming trial, but it is also looking into an oral formulation similar to a Listerine strip for future trials.

Without a clear roadmap, AI adoption often fizzles, leaving ROI unproven and teams frustrated. The 90-Day AI Adoption Playbook from You.com gives you an effective, phased roadmap to move from pilot to real, measurable ROI—in only 90 days.

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TanStack AI is a type-safe, framework-agnostic AI SDK with a unified interface across multiple providers. It enables engineers to build adaptive, intelligent apps with streaming, tool calling, agents, and multi-provider support. It supports multimodal content, chat completion, headless chat state management, and more. TanStack AI is a complete AI ecosystem and not a vendor platform - there are no middlemen or service fees, and no vendor lock-in.

You don't have to chase the spotlight to have a meaningful, high-impact career at a big company. The tech industry loves to tell you to move fast, but there is a path where leverage comes from depth, patience, and the quiet satisfaction of building the foundation others stand on. It's okay to stay put, dig in, and build something that lasts. Some projects require engineers to sit with a problem space for years until they understand it well enough.

A lot has changed since last year, both online and offline. This presentation tries to make sense of all of it. It contains screenshots and news articles collected throughout the year that tell the story of what's been happening.

Tesla says it will allow people to text and drive while using Full-Self Driving (FSD) within the next couple of months. There are some concerns with the capability, as laws in the US specifically prohibit texting and driving. Some states prohibit drivers from even holding a phone when the car is in motion. Elon Musk has noted that the capability will only be available depending on the context of surrounding traffic, but did not provide any details about what conditions FSD would allow a driver to text and drive.

Cloud-native apps generate mountains of telemetry. This Dummies Guide helps you make sense of it with practical, step-by-step instructions for instrumenting real-world apps. Get your free copy

AI datacenter buildouts are causing RAM prices to skyrocket.

A long-term brain drain has robbed Apple of innovators and seeded rivals with expertise.

System-wide filtering is the ability to intercept and block web traffic from any application, not just browsers.

The iPhone app of the year was Tiimo, the iPad app of the year was Detail, and the Mac app of the year was Essayist.

Free and open source software is an amazing hack for cost control and copyright licensing law problems.

Real progress is messy, iterative, and deeply intertwined with the tools we build.