Physix Frontier · News Briefing Card (TMTPost · Oct 8, 2026)

Chrome 155 enables JPEG XL by default; VS Code becomes AI agent console

KEY FACTS

On October 6, 2026, Chrome 155 enabled JPEG XL decoding by default, using the Rust-written jxl-rs decoder.
The format was removed by Google in 2022, but support from Safari and Windows plus developer pressure led to a reversal in November 2025.
On October 7, 2026, Microsoft released VS Code 1.141, repositioning it from an editor to an AI agent management console.
The new version adds session worktree cleanup, a cross-platform terminal sandbox, and a multi-session grid layout, with Copilot Harness migrated to a unified SDK.
The sandbox is off by default; enterprises can force it on and prohibit bypasses, and simultaneous multi-instance GitHub Enterprise sign-in support was added.

KEY DATA

30%–50%JPEG XL lossless recompression gain

about 95%AVIF coverage

1.141VS Code version

PHYSIX OBSERVATION

Google's renewed embrace of JPEG XL is an admission of the power of open standards and the developer ecosystem; Microsoft turning VS Code into an AI agent console means programming tools are shifting from writing code to managing agents. Together, both point to one thing: platforms must adapt to AI workflows, not make AI adapt to old tools.

Source: TMTPost report