The stall-hint threshold change matters more than the wording. 2.1.144 added automatic retry on pre-response stream stalls, and 2.1.179 fixed mid-stream connection drops so partial responses are preserved. The original 10s trigger was aggressive enough to fire during normal Opus extended thinking, producing false-positive "No response" hints that looked like errors. Doubling it to 20s should eliminate most of those. If you were seeing spurious stall hints on long reasoning turns, this is the fix.