Claude Code's new opt-in renderer virtualises the viewport, eliminates flicker, adds mouse events, and keeps memory flat in long sessions. For developers running Claude Code in VS Code, tmux, or iTerm2.
Exploring alternatives to Claude Code NO_FLICKER Mode? Try Warp for agent-ready workflows, Ghostty for blazing, cross‑platform rendering, and iTerm2 for Mac power features. Need agent-focused terminals? Check cmux or Caudex with GUI controls.