I was seeing the log of my client and I noticed the message:
2016-06-16 16:28:51 UpdateTip: new best=00000000000000000454d73cb3b0591f1ff43097e2f1a73d66e47506d2804ac0 height=416585 log2_work=84.840147 tx=136332137 date=2016-06-16 16:15:21 progress=0.999995 cache=0.5MiB(0tx)
2016-06-16 16:28:51 UpdateTip: 5 of last 100 blocks have unexpected version
I see this block (
https://blockchain.info/pt/block/00000000000000000454d73cb3b0591f1ff43097e2f1a73d66e47506d2804ac0) and the version is 536870913
What is happening?
Im using the version 0.12.1
Those are Bitcoin Classic blocks. Those blocks are mined by miners who support Bitcoin Classic and their 2 Mb max block size fork. Bitcoin Core doesn't support the fork and those versions are not supported nor recognized by the program so it raises that warning.
