# Codex CLI 0.156.0 — an optional fullscreen UI with transcript search

> A fullscreen terminal UI, searchable transcripts and voice on by default land in Codex CLI 0.156.0.

- Org: OpenAI
- Date: 2026-09-22
- Category: tool
- Source: https://github.com/openai/codex/releases/tag/rust-v0.156.0
- Canonical page: https://ai-tldr.dev/releases/openai-codex-cli-0-156/

## In short

Codex CLI 0.156.0 adds an optional fullscreen terminal UI behind /tui, with transcript search, mouse selection and right-click copying. Voice conversations are now on by default, and a /usage dashboard shows token totals.

## What it is

An optional fullscreen interface is the headline of Codex CLI 0.156.0. Typing /tui switches the next launch into it, bringing transcript search, mouse selection and right-click copying to a terminal agent that until now scrolled past in plain lines. Six new themes arrive alongside it, and responses can render Mermaid diagrams and display equations directly.

## How it works

Voice conversations, which shipped behind the experimental flag in 0.155.0, are on by default in this release, with an F8 toggle, a /voice settings picker for choosing a voice, and bundled audio runtimes for Linux and Windows. Worktree support also flips on by default: the agent command center can create worktree sessions and filter tasks by status. A /usage dashboard reports account usage, token totals and plugin and skill activity, and /daemon updates the local background server, which --no-daemon skips.

## Why it matters

Searching a long agent transcript used to mean scrolling, and copying a block of output fought the terminal's own selection — the fullscreen mode removes both frictions for people who keep a session open all day. The release also closes three sandbox isolation gaps: inbound Windows connections, privileged Linux and macOS sockets, and writes through read-only macOS file handles. Sessions survive more failure cases too, keeping streamed answers and plans when a turn fails or is interrupted, and restoring Plan mode when a session is resumed.

## Who it's for

Codex CLI users who keep long terminal sessions

## Try it

npm i -g @openai/codex@0.156.0, then /tui

## Links

- [Release Notes](https://github.com/openai/codex/releases/tag/rust-v0.156.0)
- [GitHub Repo](https://github.com/openai/codex)
- [All Releases](https://github.com/openai/codex/releases)