Summary
Cursor's July 10, 2026 release (version 3.11) introduces Side Chats — parallel, context-aware agent conversations — full-text search over agent transcripts, and redesigned project and repo pickers, plus new cloud-agent lifecycle hooks (beforeSubmitPrompt, afterAgentResponse, afterAgentThought, stop, subagentStart) that let developers observe agent output and reasoning, control subagents, and build self-correcting loops.
What changed
On July 10, 2026 Cursor shipped version 3.11 with Side Chats (durable, context-aware side conversations you can revisit and at-mention back into the main chat), local full-text search over thousands of agent transcripts from the command palette, and redesigned project/repo pickers for GitHub, GitLab, and Azure DevOps. 3.11 also added cloud-agent hooks — beforeSubmitPrompt, afterAgentResponse, afterAgentThought, stop, and subagentStart — for observing output and reasoning, controlling subagents, and building self-correcting agent loops.
Why it matters
Long agent sessions accumulate tangents that previously forced users to fork a new chat and lose context; Side Chats and transcript search turn Cursor's agent surface into a persistent, navigable workspace. The new cloud-agent hooks push Cursor from a chat UI toward a programmable agent runtime, giving developers the observability and control points — pre-prompt, post-response, post-thought, and subagent lifecycle — needed to build guardrails and self-correcting loops rather than only steering agents by hand.
Evidence excerpt
Version 3.11 (July 10, 2026): Side Chats let you open a side chat to explore tangents with context from the main chat; conversation search indexes thousands of agent transcripts locally via the command palette; new cloud agent hooks like beforeSubmitPrompt, afterAgentResponse, afterAgentThought, stop, and subagentStart let you observe output and reasoning, control subagents, and build self-correcting loops.