Claude Code 3.0 (All Upgrades Explained): You don't KNOW about THESE CRAZY NEW FEATURES YET!

From the creator

Thank you to TestSprite for sponsoring this video: https://www.testsprite.com/?via=aicodingki-dw Github repo for TestSprite: https://github.com/TestSprite/testsprite-cli Visit AISeeKing: https://www.youtube.com/@aiseeking In this video, I'll be covering all the major Claude Code upgrades released over the past two months, including Claude Opus 5, cross-session messaging, the new Design command, fork mode, automated permissions, security scanning, and more. I'll also explain why Anthropic's permanent 25% weekly-limit increase is actually a 17% reduction compared to the limits users have today. -- Key Takeaways: 🚀 Claude Opus 5 is now the default Opus model in Claude Code and supports a one-million-token context window on eligible plans. 🎨 The new Design command creates editable UI artboards before Claude implements your chosen design. 🔗 Cross-session messaging allows multiple Claude Code sessions to communicate and coordinate their work. 🤖 Fork mode can launch background subagents with the full conversation context and prompt cache. ⚡ Auto mode is now the default permission mode for new sessions on Pro, Max, and Team plans. 📱 Claude Code Desktop adds a built-in browser and an iOS Simulator pane for testing applications. 🔒 The Claude Security plugin uses multiple agents to scan codebases and identify vulnerabilities. 🛠️ Other upgrades include background code reviews, Remote Control, GitLab support, screen-reader mode, and self-hosted environments. 📉 Anthropic's permanent 25% increase over the original weekly limits represents a 17% reduction from today's temporary boosted limits. 👍 Overall, Claude Code continues to improve rapidly, despite the controversy surrounding its changing usage limits.

Choose to Build with AI
Matched to Claude Code

AI Maker Residence at KOKO

The third AI workshop taught by our legendary teacher, Nick Sarafa. In one of the last events we did an asset manager raised an additional £25M on their fund within a space of 9 months. This is a full-day hands-on training workshop for purposeful co-creation with AI using Claude Code. Imagine having access to hundreds of billions of dollars of computing power and knowing exactly how to make it work for you through the power of super intelligence. One person did.

◆ Fri 09 Oct 2026 ◆ KOKO Cafe, London ◆ With Nick Sarafa
AI Maker Residence at KOKO
Live event
AI Maker Residence at KOKO
Fri 09 Oct 2026
Find a job · 1 live role

Jobs in AI.
Apply now.

Apply once › get screened › meet the company

See all roles

More like this

Running one yourself?

List your AI event,
wherever it is.

A meetup, a workshop, a hackathon, a conference. Any city, or online. Tell us about it and it lands in front of people already learning this stuff.