OpenAI Codex CLI rust-v0.87.0

OpenAI Codex CLI rust-v0.87.0 was released on .

Summary

New Features - User message metadata (text elements and byte ranges) now round-trips through protocol/app-server/core so UI annotations can survive history rebuilds. (9331) - Collaboration wait cal...

Release Context

  • This was the 8th OpenAI Codex CLI release of 2026 tracked by Havoptic.
  • It shipped 1 day after OpenAI Codex CLI rust-v0.86.0 (January 16, 2026).

Shipped around the same time

Within 3 days of this release, other AI coding tools also shipped:

Compare OpenAI Codex CLI: vs Claude Code · vs Cursor · vs Gemini CLI · vs Kiro CLI · vs GitHub Copilot CLI · vs Devin Desktop · vs Antigravity CLI

Release Notes

New Features - User message metadata (text elements and byte ranges) now round-trips through protocol/app-server/core so UI annotations can survive history rebuilds. (9331) - Collaboration wait calls can block on multiple IDs in one request, simplifying multi-thread coordination. (9294) - User shell commands now run under the user snapshot so aliases and shell config are honored. (9357) - The TUI now surfaces approval requests from spawned/unsubscribed threads. (9232) Bug Fixes - Token estimation during compaction is now accurate, improving budgeting during long sessions. (9337) - MCP CallToolResult now includes threadId in both content and structuredContent, and returns a defined output schema for compatibility. (9338) - The TUI “Worked for” separator only appears after actual work has occurred. (8958) - Piped non-PTY commands no longer hang waiting on stdin. (9369) Documentation - MCP interface docs updated to reflect structured output schema and threadId behavior. (9338) Chores - Windows builds enable the PowerShell UTF-8 feature by default. (9195) Changelog Full Changelog: https://github.com/openai/codex/compare/rust-v0.86.0...rust-v0.87.0 - 9331 Add text element metadata to protocol, app server, and core @charley-oai - 9195 chore(windows) Enable Powershell UTF8 feature @dylan-hurd-oai - 8958 fix(tui): only show 'Worked for' separator when actual work was performed @ThanhNguyxn - 9338 fix(mcp): include threadId in both content and structuredContent in CallToolResult @bolinfest - 9337 Fix token estimate during compaction @etraut-openai - 9336 rename model turn to sampling request @aibrahim-oai - 9232 feat: propagate approval request of unsubscribed threads @jif-oai - 9357 feat: run user commands under user snapshot @jif-oai - 9294 feat: collab wait multiple IDs @jif-oai - 9366 feat: CODEXCI @jif-oai - 9367 prompt collab @jif-oai - 9369 chore: close pipe on non-pty processes @jif-oai

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