Post #3691271

I see Anthropic removed the ARIA from the "open sidebar" button, making it no longer be a toggle-button but a standard one for which the label changes, presumably still via an Aria-label (although, who knows. Could be a visually-hidden Span but I won't raise my bar that high.) Still, one less ARIA attribute usage and a native button keeps it more consistent across platforms in how it announces, so a small win there.