Codex CLI 0.145.0-alpha.23

• [new] Search thread history for text occurrences, with cursor-based results for paging through matches.
• [new] Emit a session_end hook event when a session finishes, so managed hooks can run cleanup or post-session logic.
• [new] Remote network proxy configuration and launch settings, including audit metadata for proxy-related network activity.
• [new] Expanded realtime thread support, including start parameters, snapshots/events, and a WebRTC transport option for realtime sessions.
• [new] Process sandboxing path in the exec server for tighter isolation of executed processes.
• [changed] MCP runtime and elicitation/matching models refined (including form-based elicitation and prefix-style value matching).
• [changed] Plugin and remote plugin directory models extended (summaries, workspace plugin create responses, and related fields).
• [changed] Environment info and exec parameters carry additional fields for richer runtime/status reporting.
• [changed] Managed hooks requirements expanded to cover more of the hook surface.
• [changed] Wire/content and tool-call modeling updates, including image input content and agent-oriented tool-call summaries.
• [removed] Legacy client message/ack event types trimmed from the event surface as the protocol continues to consolidate.

Under the hood

• New first-party modules for MCP runtime, exec-server process sandboxing, message-history batching, local thread-history search, session-end hooks, and TUI thread-event handling.
• Data-model and request/response types updated around thread search, realtime start/error/SDP flows, remote proxy config, filesystem canonicalize responses, and tool-choice / user-input tool responses.
• Dependency and lockfile refresh alongside the 0.145.0-alpha.23 version bump.
• Additional environment knobs introduced for CA certificate handling, cloud-tasks internal forcing, and managed-by markers (alpha-channel surface; prefer documented config where available).