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Codex CLI 0.134.0: Search History, Profile Overhaul, MCP Upgrades

Codex CLI 0.134.0 ships conversation search, makes --profile the standard selector (goodbye legacy configs), and hardens MCP with per-server environments, OAuth, and parallel tool execution. Windows TUI rendering and remote reliability also fixed.

TL;DR

Local conversation history search with case-insensitive matching and previews
--profile becomes the standard profile selector; legacy configs now rejected with migration guidance
MCP improvements: per-server environments, OAuth support, parallel read-only tool execution, better schema handling
Windows TUI rendering fixed; remote reliability hardened with websocket reconnection and stream retries

New

Conversation history search — Find past exchanges with case-insensitive content matching and result previews built in.
--profile as primary selector — Unified profile selection across CLI, TUI, and sandbox flows. Legacy profile v1 configs now rejected with clear migration guidance.
MCP per-server environments — Route servers through explicit environment targeting and add OAuth options for streamable HTTP servers.
Smarter connector schemas — Preserve local $ref/$defs structures and auto-compact oversized schemas before exposure.
Parallel read-only MCP tools — Tools advertising readOnlyHint now execute concurrently instead of sequentially.
Richer extension context — Extension tools now access conversation history; hook inputs include subagent identity.

Fixed

Remote reliability — Reconnect stale exec-server websocket clients, retry remote control after auth recovery, and retry remote compaction v2 streams.
Windows TUI rendering corruption — Restore virtual terminal mode before drawing to prevent garbled output.
Workspace usage limits — Display workspace-specific error messages for credit and spend-cap failures.
Plugin icon sharing — Allow plugin skills to reuse shared plugin-level icon assets.
Permission profile metadata — Preserve active profile metadata when syncing auto-review runtime settings.
Node tool proxy support — Ensure Node-based tools honor Codex's managed network proxy environment.