AI Product Updates: New Features and Releases

Serein released a new version with wallpaper support and switchable themes, with a generic harness, personal assistant, and open source planned next.

A weekly Arc ecosystem roundup covering 15 projects, including TollyLabs' MCP linking agents to 40+ paid x402 services and TowerExchange's Claude MCP for stablecoin execution.

TRY TRY LOOK's crypto cross-platform arbitrage agent is live on Finch, supporting four CEX/DEX routes, resumable multi-stage tasks, and local wallet signing with credential cleanup after each run.

Claude Duet, an Opus 5.5-powered personal assistant for busy professionals and small business owners, offers a standalone app with channels and task lists and is still waitlisted.

Cloud Loops runs agents on schedules or webhooks inside isolated sandboxes, so they keep working even when your computer is off.

Anthropic launched Claude Duet in research preview, a proactive always-on agent available to personal Pro and Max users in the US.

Adds a /claude-api api-version switch, stops duplicate HTTP MCP sends on disconnect, and makes /clear persist across restarts.

Argus shipped Argus MCP, enabling AI-driven trading strategies on gasless Circle Wallets, plus Argus Stats for publicly verifiable platform metrics, with an ecosystem fund and more planned.

Hedera's testnet Network MCP gives Claude Code, Codex, Cursor, and ChatGPT over 40 tools to create tokens, manage allowances, and read chain data, with user wallet signing required.

A Claude Code changelog account says version 2.1.307 is about to be released, without detailing what changed.

Muse can send emails, book travel and sell a car on your behalf; the post's second half promotes Fere's trading agents.

Anthropic released Duet, a standalone always-on personal agent app for iOS, Android and web with channels, a todo list and document editing; after two weeks of testing the author says he now splits usage roughly 50/50 between ChatGPT and Claude.