Release notes: update notes through to 11e1ac3

Author: harding

doc/release-notes.md

@@ -53,8 +53,14 @@ the Linux kernel, macOS 10.10+, and Windows 7 and newer (Windows XP is not suppo
 Bitcoin Core should also work on most other Unix-like systems but is not
 frequently tested on them.
 
-From 0.17.0 onwards macOS <10.10 is no longer supported. 0.17.0 is built using Qt 5.9.x, which doesn't
-support versions of macOS older than 10.10.
+From 0.17.0 onwards, macOS <10.10 is no longer supported.  0.17.0 is
+built using Qt 5.9.x, which doesn't support versions of macOS older than
+10.10.  Additionally, Bitcoin Core does not yet change appearance when
+macOS "dark mode" is activated.
+
+In addition to previously-supported CPU platforms, this release's
+pre-compiled distribution also provides binaries for the RISC-V
+platform.
 
 Notable changes
 ===============
@@ -69,9 +75,87 @@ nodes. The option will now by default be off for improved privacy and security
 as well as reduced upload usage. The option can explicitly be turned on for
 local-network debugging purposes.
 
-Example item
+Documentation
+-------------
+
+- A new short
+  [document](https://github.com/bitcoin/bitcoin/blob/master/doc/JSON-RPC-interface.md)
+  about the JSON-RPC interface describes cases where the results of an
+  RPC might contain inconsistencies between data sourced from different
+  subsystems, such as wallet state and mempool state.  A note is added
+  to the [REST interface documentation](https://github.com/bitcoin/bitcoin/blob/master/doc/REST-interface.md)
+  indicating that the same rules apply.
+
+- A new [document](https://github.com/bitcoin/bitcoin/blob/master/doc/bitcoin-conf.md)
+  about the `bitcoin.conf` file describes how to use it to configure
+  Bitcoin Core.
+
+- A new document introduces Bitcoin Core's BIP174
+  [Partially-Signed Bitcoin Transactions (PSBT)](https://github.com/bitcoin/bitcoin/blob/master/doc/psbt.md)
+  interface, which is used to allow multiple programs to collaboratively
+  work to create, sign, and broadcast new transactions.  This is useful
+  for offline (cold storage) wallets, multisig wallets, coinjoin
+  implementations, and many other cases where two or more programs need
+  to interact to generate a complete transaction.
+
+- The [output script descriptor](https://github.com/bitcoin/bitcoin/blob/master/doc/descriptors.md)
+  documentation has been updated with information about new features in
+  this still-developing language for describing the output scripts that
+  a wallet or other program wants to receive notifications for, such as
+  which addresses it wants to know received payments.  The language is
+  currently used in the `scantxoutset` RPC and is expected to be adapted
+  to other RPCs and to the underlying wallet structure.
+
+Build system changes
+--------------------
+
+- A new `--disable-bip70` option may be passed to `./configure` to
+  prevent Bitcoin-Qt from being built with support for the BIP70 payment
+  protocol or from linking libssl.  As the payment protocol has exposed
+  Bitcoin Core to libssl vulnerabilities in the past, builders who don't
+  need BIP70 support are encouraged to use this option to reduce their
+  exposure to future vulnerabilities.
+
+Updated RPCs
 ------------
 
+- The `signrawtransaction` RPC is removed after being deprecated and
+  hidden behind a special configuration option in version 0.17.0.
+
+- The `getpeerinfo` RPC now returns an additional "minfeefilter" field
+  set to the peer's BIP133 fee filter.  You can use this to detect that
+  you have peers that are willing to accept transactions below the
+  default minimum relay fee.
+
+- The mempool RPCs, such as `getrawmempool` with `verbose=true`, now
+  return an additional "bip125-replaceable" value indicating whether the
+  transaction (or its unconfirmed ancestors) opts-in to asking nodes and
+  miners to replace it with a higher-feerate transaction spending any of
+  the same inputs.
+
+- The `settxfee` RPC previously silently ignored attempts to set the fee
+  below the allowed minimums.  It now prints a warning.  The special
+  value of "0" may still be used to request the minimum value.
+
+- The `getaddressinfo` RPC now provides an `ischange` field indicating
+  whether the wallet used the address in a change output.
+
+Low-level changes
+=================
+
+RPC
+---
+
+- The `submitblock` RPC previously returned the reason a rejected block
+  was invalid the first time it processed that block but returned a
+  generic "duplicate" rejection message on subsequent occasions it
+  processed the same block.  It now always returns the fundamental
+  reason for rejecting an invalid block and only returns "duplicate" for
+  valid blocks it has already accepted.
+
+- A new `submitheader` RPC allows submitting block headers independently
+  from their block.  This is likely only useful for testing.
+
 Credits
 =======