Release notes 0.20.2

Bitcoin ABC version 0.20.2 is now available from:

https://download.bitcoinabc.org/0.20.2/

This release includes the following features and fixes: - Improved initial block download performance by ~20%. - Improved initial block download performance during pruning. - bitcoin-qt -resetguisettings now generates a backup of the former GUI settings. - Removed features that were deprecated in 0.19.x, including signrawtransaction, fundrawtransaction -reserveChangeKey, parts of validateaddress, use of addresses in createmultisig, and other miscellaneous behaviors. - Minor logging improvements. - Introduced submitheader RPC for submitting header candidates as chaintips.