Codex rewrote its TUI transcript subsystem across 50 commits in two days.

Between rust-v0.156.0-alpha.6 on September 19 and alpha.9 on September 20, the overlay moved into its own module (#46719), transcript layouts are cached across measurement and rendering (#46720), scrolling anchors to entries with a bounded viewport (#46721), and persisted transcripts regained rich tool details (#46710) with activity groups aligned to live output (#46711) (GitHub). A separate thread unified every picker, prompt and completion popup on shared styling (#46691-#46697). None of this adds capability. All of it addresses what a long session costs you in the terminal, which is the thing you notice at hour four.