Kiro announces Kiroween, a Halloween-themed hackathon with $100,000 in prizes across 12 categories. Participants build applications using Kiro's agentic IDE features including specs, agent hooks, steering, and MCP. The competition runs from October 31 to December 5, 2025, with categories like Resurrection, Frankenstein, Skeleton Crew, and Costume Contest, plus a special $10,000 startup prize. All participants receive Kiro Pro+ tier access during the submission period.

OpenAI's Apps SDK enables third-party applications to integrate seamlessly within ChatGPT conversations, creating contextual experiences where users complete tasks without switching interfaces. The SDK applies Hick's Law and Fitts's Law principles to reduce decision complexity and interaction distance. Designers should focus on single-purpose, conversation-friendly tasks that can be summarized visually with minimal actions. Best practices include displaying only relevant information, limiting cards to two primary actions, and avoiding complex multi-step workflows. This shift positions ChatGPT as an operating system-like environment, expanding UX design scope toward flows, contexts, and systems that help AI communicate and align with human goals.

Electron 39.0.0 brings upgrades to Chromium 142.0.7444.52, Node 22.20.0, and V8 14.2. The ASAR integrity feature, which validates packaged apps against build-time hashes to prevent tampering, graduates from experimental to stable. New features include hardware acceleration detection, HDR color space support for offscreen rendering, granular accessibility management, and dynamic ESM imports in preloads. Breaking changes include deprecation of the --host-rules command line switch in favor of --host-resolver-rules, always-resizable window.open popups per WHATWG spec, and restructured shared texture OSR paint event data. Electron 36.x.y reaches end-of-support.