Bitcoin ABC 0.17.2

Bitcoin ABC version 0.17.2 is now available from:

https://download.bitcoinabc.org/0.17.2/

This release includes the following features and fixes:

• Remove deprecated estimatepriority RPC.
• Remove deprecated estimatesmartpriority RPC.
• Remove support for -sendfreetransactions.
• Remove unstable estimatesmartfee RPC.
• Update berkley DB to 5.3 minimum. Developers should update their build environment accordingly.
• Remove -incrementalrelayfee option