What
The record of a cloud session's sync state gains setAside, appliesLinks and need fields, and bundles can now form a chain of links or stand alone.
A cloud session started without being bound to a device now shows a message beginning 'This session began unbound (no sync-back or local commands):'.
Why
If a cloud session starts unbound, you are told that its changes will not sync back and local commands will not run.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
The finding does not say what a bundle is or what the new fields do.