v0.7.1 is a non-breaking release for the v0.7.x era, note that mainnet has been upgraded to v0.8.x now.
- Fix some basic JSON-RPC APIs on pruned nodes, some users can use pruned=everything to dramatically reduce the disk space requirement of a full node.
- Fix a bug that some tx hashes returned by eth_getBlock can't be found in eth_getTransaction.
- Reject MsgEthereumTx with invalid Size_/From/Hash values.
- Backport an improvement that rejects replaying old transactions from the ethereum chain which are not replay protected yet (pre-EIP155).