[Dev Catch Up # 82] - Claude Sonnet 4.5, Tinker - an API for fine-tuning, Sora 2, API Versioning, ChatGPT - Instant Checkout and the Agentic Commerce Protocol, Jules in Terminal and much more!
Bringing devs up to speed on the latest dev news from the trends including, a bunch of exciting developments and articles
Welcome to the 82nd edition of DevShorts, Dev Catch Up!
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Must Read
Anthropic released Claude Sonnet 4.5. Along with it, they announced major upgrades to their products. These include Claude Code Checkpoints, Agent SDK, context editing feature, and memory tool in the Claude API. Read Anthropic’s announcement on Claude Sonnet 4.5 and other updates.
OpenAI has enabled Instant Checkout in ChatGPT. It lets you buy items directly inside the chat. They also open-sourced the underlying Agentic Commerce Protocol (ACP). Check OpenAI’s post to know more about this Instant Checkout in ChatGPT and ACP Protocol.
Mira Murati’s Thinking Machines Lab has announced Tinker. It is an API for fine-tuning language models. It gives developers control over algorithms and data. Check the Tinker announcement to join the waitlist and read the docs.
API versioning is very important when applications evolve. This post explains common strategies like path, query, payload, and header-based versioning. It also covers their pros and cons. Check the API Versioning Substack guide for more details.
OSS Highlight of the Week
This week we are featuring CodeLayer. It is an open-source IDE for orchestrating AI coding agents. It comes with workflows that help AI handle complex codebases. It is built on Claude Code. Check the HumanLayer GitHub repo and join the waitlist for early access.
Good to know
OpenAI has released Sora 2. It brings better video quality, higher frame rates, and now generates video with native audio, with synchronized dialogues and sound effects. OpenAI has launched the Sora App for Apple devices, powered by Sora 2. Check OpenAI’s post on Sora 2 for more details.
IEEE Spectrum has released the Top Programming Languages 2025. Python stays at number one, and the report shows how AI is changing the way people code. Check the post on the Top Programming Languages 2025 for more details.
Context engineering is becoming more important for AI agents. Anthropic’s latest post shows why context matters more than prompt tweaks. It explains methods like compaction, note-taking, and sub-agents to keep AI agents effective on long tasks. Check Anthropic’s post on context engineering for more details.
Google has released an in-depth guide on building AI agents. It covers tools like Vertex AI, Gemini, and the Agent Development Kit, with techniques such as RAG. Check Google’s guide on building AI agents for more details.
Notable FYIs
CLI coding agents are becoming more popular. Google has released Jules Tools, a terminal companion for its coding agent Jules. It lets developers run tasks and track progress directly from the terminal instead of switching to the browser. Read Google’s post on Jules Tools.
We’ve all seen the message “username already taken.” But how do platforms check this so quickly? This post explains the systems behind it, from database queries and caching. It also covers data structures that can handle billions of usernames. Read this Substack post to learn the secret architecture behind “username already taken.”
One more agent framework has been added to the list. Microsoft has released its AI Agent Framework. It combines Semantic Kernel and AutoGen into one foundation. It also brings features like graph-based workflows, agent state management, and MCP tool integration. Check Microsoft’s GitHub repo on Agent Framework for more details.
If you are working with Go, you may want to check these logging libraries. The guide covers five popular choices like Zap, Zerolog, Slog, Apex/log, and Logrus. It also explains their strengths and use-cases in production. Check the post on Go logging libraries for more details.
That’s it from us with this edition. We hope you are going away with a ton of new information. Lastly, share this newsletter with your colleagues and pals if you find it valuable. A subscription to the newsletter will be awesome if you are reading it for the first time.