What
When Claude Code downloads file attachments for a session through its bridge connection, it now cleans up each file separately once the number of attachments goes over a fixed limit. Before, cleanup ran once at the end over every attachment together.
The usage data Claude Code records about these downloads also gained two new fields. One records whether a related setting was on. The other counts attachments that were queued ahead of the files.
Why
This changes how attachments arriving over the bridge are handled and what Claude Code reports about them.
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What the attachment count limit is, and what it is meant to protect against, is not known.