Under the hood
MCP tool calls now keep conversation history in a dedicated path, so later turns can reason over earlier MCP results more cleanly.
The TUI analytics activity chart has its own color palette. Empty-state lighting animation and the old chat turn-runtime helper are gone, folded into the rest of the TUI.
CODEX_CI and CODEX_SANDBOX_NETWORK_DISABLED are available for CI detection and turning off sandbox network access.
Account payloads cover token-usage summaries and rate-limit credit resets. Auto-review config has more fields. Installed-app and MCP roots-discover responses were reshaped, and there is groundwork for generated thread titles and a wait tool.
The event-listener-strategy dependency was dropped.