
OpenAI announced updates to its software engineering agent Codex at DevDay, introducing persistent cloud development environments accessible from any device. The platform now supports reusable workspaces with shared settings, alongside a refreshed CLI featuring voice control and a new /agents view for task delegation. Security enhancements include Codex Security Cloud for automated repository scanning and integration with Daybreak Blue models. Additionally, the update brings code review capabilities to the ChatGPT desktop app and expands the Agents API to support computer use and AWS Bedrock Managed Agents.
Read originalAnthropic quietly upgrades its local coding agent with Sonnet 5.5 as the new default, bringing a massive 1M context window to developers' terminals. This isn't just a model swap; it fundamentally changes how much codebase history you can keep in memory without manual chunking. The release also patches critical stability issues like malformed image crashes and broken MCP reconnections, making the tool significantly more reliable for complex workflows. For builders, this means deeper context awareness and fewer interruptions during long coding sessions.
This release prioritizes security hygiene and session reliability over new features. The addition of CLAUDE_CODE_DISABLE_WEB_FETCH is a critical control for enterprise environments needing to restrict external data access. Bug fixes address subtle race conditions in cloud sessions and artifact publishing that could lead to data loss or incorrect state. SSH and plugin installation issues are resolved, ensuring smoother remote workflows. It’s a maintenance update that tightens the tool's operational boundaries.