cairn-miner v0.2.8
- Duplicate-share fix, for real this time. v0.2.3's fix did not fully close
the CUDA duplicate-share bug: a stream-timing race could drain a stale find
from an earlier chunk and re-submit it (up to ~10% rejects on slower cards at
low difficulty). The proven root cause: the GPU occasionally returned a nonce
outside the requested range. hash_range now discards any out-of-range result,
making its contract hold unconditionally. Verified over 2.5 hours on the
repro hardware: 647 accepted, 0 rejected, 0 duplicates. - No earnings were ever lost to this bug (the first copy of each share was
always accepted); it fixes the misleading reject counters.
Includes everything from v0.2.6/v0.2.7 (startup difficulty hint, terminal
dashboard, installer checksum verification).