About the timeline for subagents coming to stable: we don’t have a public schedule. The feature is being actively developed in the nightly channel, but we can’t say when it’ll land in stable.
About switching back from nightly to stable: chats may break when switching back. This is a known issue when rolling back versions. So if you plan to try nightly, be ready that rolling back can lead to losing or corrupting your chat history.
Options:
Wait until subagents ship in stable (no timeline yet)
Use nightly and stay on it (don’t roll back)
Try nightly knowing that rolling back is risky
If keeping chats safe is critical, it’s best to either wait for the stable release, or stay on nightly after switching, or export any important conversations.