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Diffstat (limited to 'doc/release-notes.md')
| -rw-r--r-- | doc/release-notes.md | 140 |
1 files changed, 137 insertions, 3 deletions
diff --git a/doc/release-notes.md b/doc/release-notes.md index 2044a50098..f5c139e3f1 100644 --- a/doc/release-notes.md +++ b/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 +75,137 @@ 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. + +Deprecated or removed RPCs +-------------------------- + +- The `signrawtransaction` RPC is removed after being deprecated and + hidden behind a special configuration option in version 0.17.0. + +- The 'account' API is removed after being deprecated in v0.17. The + 'label' API was introduced in v0.17 as a replacement for accounts. + See the [release notes from v0.17](https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-0.17.0.md#label-and-account-apis-for-wallet) + for a full description of the changes from the 'account' API to the + 'label' API. + +- The `addwitnessaddress` RPC is removed after being deprecated in + version 0.13.0. + +- The wallet's `generate` RPC method is deprecated and will be fully + removed in a subsequent major version. This RPC is only used for + testing, but its implementation reached across multiple subsystems + (wallet and mining), so it is being deprecated to simplify the + wallet-node interface. Projects that are using `generate` for testing + purposes should transition to using the `generatetoaddress` RPC, which + does not require or use the wallet component. Calling + `generatetoaddress` with an address returned by the `getnewaddress` + RPC gives the same functionality as the old `generate` RPC. To + continue using `generate` in this version, restart bitcoind with the + `-deprecatedrpc=generate` configuration option. + +New RPCs +-------- + +- A new `getnodeaddresses` RPC returns peer addresses known to this + node. It may be used to find nodes to connect to without using a DNS + seeder. + +- A new `listwalletdir` RPC returns a list of wallets in the wallet + directory (either the default wallet directory or the directory + configured by the `-walletdir` parameter). + +Updated RPCs ------------ +Note: some low-level RPC changes mainly useful for testing are described +in the Low-level Changes section below. + +- 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. + +- The `importmulti` RPC has been updated to support P2WSH, P2WPKH, + P2SH-P2WPKH, and P2SH-P2WSH. Requests for P2WSH and P2SH-P2WSH accept + an additional `witnessscript` parameter. + +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. + +Configuration +------------- + +- The `-usehd` configuration option was removed in version 0.16. From + that version onwards, all new wallets created are hierarchical + deterministic wallets. This release makes specifying `-usehd` an + invalid configuration option. + Credits ======= |