Version 0.154.0 introduces GPT-6-Astra, now selectable in the model picker and available through Amazon Bedrock catalogs. Experimental worktree support lets you create isolated checkouts for new or forked sessions via a worktree flag, with browsing and resume capabilities. Windows sessions can now share a background Codex server, with daemon lifecycle commands and automatic managed updates. Vim editing gains an R replace mode with undo and dot-repeat, and Escape handling is more reliable in legacy terminals. Copying a response preserves rich-text formatting, and the copy command can also capture status output or individual session fields.