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The Codex Changelog · July 29 · 7 min

Zero-Copy Forks and the Esc-Esc Trap

This episode dives into Codex CLI’s move from expensive JSONL duplication to zero-copy, reference-based forks, preserving timestamps while cutting branching latency and disk usage. It also covers temporary side sessions for subagents and a quirky terminal UI bug where buffered keypresses can trigger runaway chained forks.

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This episode dives into Codex CLI’s move from expensive JSONL duplication to zero-copy, reference-based forks, preserving timestamps while cutting branching latency and disk usage. It also covers temporary side sessions for subagents and a quirky terminal UI bug where buffered keypresses can trigger runaway chained forks.

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