Luke Dashjr via bitcoin-dev
2017-06-19 19:26:22 UTC
choose to perform a chain split attack, at least Bitcoin Knots will be using
the temporary service bit (1 << 27) to indicate BIP148 support.
Once the transition is complete, this will no longer be necessary, and the bit
will be (manually) returned for reuse.
I encourage other software implementing BIP148 (both full and light nodes) to
set and use this service bit to avoid network partitioning risks.