TLDR 2026-02-04

Most AI code review tools analyze the diff. Sometimes the file, occasionally the repo.

That's not how experienced engineers work.

Instead, they remember the Slack thread that explains this database pattern. They know David on the platform team has strong opinions about error handling. They've internalized dozens of unwritten conventions.

Unblocked is the only AI code review tool that uses codebase, docs, and discussions to give high-signal feedback based on how your system actually works – instead of flooding your PR with stylistic nitpicks.

“Unblocked has reversed my AI fatigue completely. The level of precision is wild.” - Senior developer, Clio

Try now for free

HP CEO Enrique Lores will replace PayPal's previous CEO, Alex Chriss, starting March 1. Lores has served on the PayPal board for nearly five years and as Board Chair since July 2024. HP was reportedly blindsided by the decision, which was only communicated to the company's board in recent weeks. Lores worked at HP for 36 years, joining the company as an engineering intern. HP has named board member Bruce Broussard as interim CEO.

The Google app 17.4 beta contains strings about a 'Get tasks done with Gemini' feature. The control is also referred to as 'screen automation'. Google has been working on letting Gemini control Android phones for a while. The feature will only work in certain apps.

Data centers in space face massive challenges such as radiation, cooling, latency, and launch costs. There are other fundamental issues that make them unfeasible: competing in the market would require launching hundreds of thousands, if not millions, of satellites into space, and satellites can't be upgraded at scale. Data centers in space only make sense if they are cost-effective relative to normal data centers. The idea makes less and less sense with every improvement in normal energy production.

The optimal fleet size for automatic vehicles is not peak demand, but it's also not average. The economic optimum is 98-99% demand coverage for most operators. Oversizing fleets destroys pricing power faster than it increases utilization. AV unit economics only work with aggressive off-peak price differentiation.

Anthropic used to give prospective performance engineering candidates a notoriously difficult take-home exam designed to assess technical ability and judgment under time pressure. This practice was retired after Claude Opus 4.5 scored higher than any candidate ever after just two hours of work. The company has released the assignment publicly along with a post detailing its design principles. This post breaks down the challenge from start to finish and explains everything from scratch.

As the first engineer on TLDR's new Applied AI team, you'll build AI agents and composable Claude Skills to let non-technical teammates create their own AI workflows. Learn more.

Xcode 26.3 introduces a native integration with the Claude Agent SDK. Developers now have the full power of Claude Code directly in Xcode without having to leave the IDE. Claude can work autonomously on sophisticated, long-running tasks. The integration supports visual verification with Previews, reasoning across projects, autonomous task execution, and interfacing through the Model Context Protocol. Xcode 26.3 is now available as a release candidate for all members of the Apple Developer Program.

Simon Berens left his job as a software engineer in January 2025 to launch a hardware product, Brighter: the world's brightest lamp. Berens had no prior experience in hardware and was counting on being able to pick it up quickly with the help of other engineers. This article takes a look at the challenges Berens had to overcome, like making the lamp in the first place, tariffs, and manufacturing issues, and details the lessons that he learned along the way.

Sam Altman has a tendency to race ahead with ideas that excite him. While it is a tentpole of his success, it has gotten him in trouble in the past. Altman's itch to release products quickly is informed by his study of Xerox PARC, a legendary Silicon Valley research lab known for inventing the modern graphical user interface, laser printers, and the computer mouse, yet failing to commercialize any of them. Altman's reputation for shiny object syndrome can be harmful - OpenAI has been criticized in the past for releasing products without proper safety testing and for shipping features that prioritize engagement over psychological well-being.

We are launching a brand new newsletter covering IT and enterprise tech.

If you are an IT leader interested in writing for us, please send your resume or LinkedIn to itcurator@tldr.tech!

Only a small proportion of subscribers to Microsoft's enterprise suite use Copilot, and the percentage of people who favor it over other tools has decreased in recent months.

Sovereignty Gaps are situations where the central structures of society require a function they cannot perform, requiring new actors to perform it on their behalf.

Josh D'Amaro, who has spent 28 years at Disney, mostly working in the theme-parks business, will succeed Bob Iger to become Disney's new chief executive officer starting on March 18.

Staying within spec is easy if more information helps rule out possible futures, otherwise, the system will need help.

When institutions start to lose their soul, the people inside them start to care about different things.

Anthropic's announcement that it would add new legal tools to its Co-work assistant resulted in shares of some companies that provide legal tools or research databases falling sharply.