2026.09.28

[anthropics/claude-code] v2.1.284

## What's changed - Added Claude Sonnet 5.5 (`claude-sonnet-5-5`), now the default Sonnet model on the Anthropic API — 1M context, $2/$10 per Mtok with $0.20/Mtok cache reads - Add…

claude-code


## 개요

## What's changed

- Added Claude Sonnet 5.5 (`claude-sonnet-5-5`), now the default Sonnet model on the Anthropic API — 1M context, $2/$10 per Mtok with $0.20/Mtok cache reads
- Added a "Yes, but ask 

**출처**: [https://github.com/anthropics/claude-code/releases/tag/v2.1.284](https://github.com/anthropics/claude-code/releases/tag/v2.1.284)

원문에서 전체 내용을 확인하세요:

https://github.com/anthropics/claude-code/releases/tag/v2.1.284 →

FAQ

Can complete beginners use this?

Yes! Start from beginner level. Even if you don't know what AI is, you can learn step by step from prompt writing.

Is it really free?

Yes, all learning content and labs are free. Sign in with Google for progress tracking and bookmarks.

How is the course structured?

Six sessions in order — foundations, prompting, workspace, report design, and building your own skill. Sessions 3 and 4 come with downloadable practice files.