How to Upgrade
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This is a new major version release, including new features, various bugfixes and performance improvements, as well as updated translations. If you are running an older version, shut it down. The first time you run version 0. Note rescan bitcoin qt the block database format also changed in version 0. Upgrading directly from 0. However, as usual, old wallet versions are still supported. Wallets created in 0. Existing wallets that were created with older versions are not affected by this.
Bitcoin Core is extensively tested on multiple operating systems using the Linux kernel, macOS Windows XP is not supported. Bitcoin Core should also work on most other Unix-like systems but is not frequently tested on them. A new -addresstype argument has been added, which supports legacyrescan bitcoin qt defaultand bech32 addresses.
It controls what kind of addresses are produced by rescan bitcoin qtgetaccountaddressand createmultisigaddress. A -changetype argument has also been added, with the same options, and by default equal to -addresstypeto control which kind of change is used.
Note that some RPCs do not yet support segwit addresses. Support for segwit in those RPCs will continue to be added in future versions.
This is done to ensure the change output is as indistinguishable from the other outputs as possible in either case. This includes the ability to send to BIP addresses including non-v0 onesand generating these rescan bitcoin qt including as default new addresses, see above.
A checkbox has been added to the GUI to select whether a Bech32 address or P2SH-wrapped address should be generated when using segwit addresses. Due to a backward-incompatible change in the wallet database, wallets created with version 0. Note that this only applies to new wallets; wallets made with previous versions will not be upgraded to be HD.
There is a checkbox rescan bitcoin qt mark the transaction as final. The RPC default remains unchanged: Bitcoin Core now has more flexibility in where the wallets directory can be located. Previously wallet database files were stored at the top level of the bitcoin data directory. The behavior is now:. Care should be taken when choosing the wallets directory location, as if it becomes unavailable during operation, funds may be lost.
No effort will be made to support older versions of GCC. See discussion in issue for more information.
The minimum version for the Clang compiler is still 3. This would allow pruned nodes to serve the most recent blocks. However, the current change does not yet include support for connecting to these pruned peers. In previous versions they rescan bitcoin qt enabled using the --enable-experimental-asm flag when building, but are now the default and no longer deemed experimental.
A new RPC rescanblockchain has been added to manually invoke a blockchain rescan. The RPC supports start and end-height arguments for the rescan, and can be used in a multiwallet environment to rescan the blockchain at runtime. Safe mode is a feature that disables a subset of RPC calls - mostly related to the wallet and sending - automatically in case certain problem conditions with the network are detected.
However, developers have come to regard these checks as not reliable enough to act on automatically. Even with safe mode disabled, they will still cause warnings in the warnings field of the getneworkinfo RPC and launch the -alertnotify command.
The value for embedded includes much of the information validateaddress would report if invoked directly on the embedded address. This is a replacement for the existing addresses field which reports the same information but encoded as P2PKH addressesrepresented in a more useful and less confusing way. The addresses field remains present for non-segwit addresses for backward compatibility. In particular, this means that invoking validateaddress on the output of getnewaddress will always report the pubkeyeven when the address rescan bitcoin qt is P2SH-P2WPKH.
As well as everyone that helped translating on Transifex. Bitcoin Core version 0. Please report bugs using the issue tracker at GitHub: Downgrading warning Wallets created in 0. Compatibility Bitcoin Core is extensively tested on multiple operating systems using the Linux kernel, macOS This means that downgrading after creating a segwit address will work, as long as the wallet file is up to date.
All segwit keys in the wallet get an implicit redeemscript added, without it being written to the file. This means recovery of an old backup will work, as long as you use new software. All keypool keys that are seen used in transactions explicitly get their redeemscripts added to rescan bitcoin qt wallet files. This means that downgrading after recovering from a backup that includes a segwit address will work Note that some RPCs do not yet support segwit addresses.
HD-wallets rescan bitcoin qt default Due to rescan bitcoin qt backward-incompatible change in the wallet database, wallets created with version 0. Wallets directory configuration -walletdir Bitcoin Core now has more flexibility rescan bitcoin qt where the wallets directory can be located.
The behavior is now: For existing nodes where the data directory already existswallets will be stored in the data directory root by default. Minimum GCC bumped to 4. Rescan bitcoin qt option to reuse a previous address has now been removed. Support for searching by TXID has been added, rather than just address and label. A toggle for unblinding the password fields on the password dialog has been added.
Validateaddress improvements The validateaddress Rescan bitcoin qt output has been rescan bitcoin qt with a few new fields, and support for segwit addresses both P2SH and Bech Low-level changes The deprecated RPC getinfo was removed. Rescan bitcoin qt is recommended that the more specific RPCs are rescan bitcoin qt The wallet RPC addwitnessaddress was deprecated and will be removed in version 0.
The RPC getblockchaininfo now includes an errors field. A new blockhash parameter has been added to the getrawtransaction RPC which allows for a raw transaction to be fetched from a specific block if known, even without -txindex enabled. The decoderawtransaction and fundrawtransaction RPCs now have optional iswitness parameters to override the heuristic witness checks if necessary. Using addresses with the createmultisig RPC is now deprecated, and will be removed in a later version. Public keys should be used instead.
The logging RPC has now been rescan bitcoin qt public rather than hidden. An initialblockdownload boolean has been added to the getblockchaininfo RPC to indicate whether the node is currently in IBD or not. The -usehd option has been removed.
Segwit is now always active in regtest mode by default. Failure to do this will result in a CheckBlockIndex assertion failure that will look like: Open files read only if requested Elbandi 46d1ebf Document partial validation in ConnectBlock sdaftuar c Make all script validation flags backward compatible sipa f Add a CChainState class to validation. Options benma 9d31ed2 Split resolve rescan bitcoin qt of connect theuni fef65c4 Ignore getheaders requests for very old side blocks jimpo 5aeaa9c addrman: Add missing lock in Clear CAddrMan practicalswift 5ef3b69 De-duplicate connection eviction logic tjps 1ff Do not send potentially invalid headers in response to getheaders TheBlueMatt aca77a4 Assert state.
Reject arguments to -getinfo laanwj da3 Fix sendrawtransaction hang when rescan bitcoin qt a tx already in mempool TheBlueMatt 32c9b57 clarify abortrescan rpc use instagibbs ef14f2e Improve help text and behavior of RPC-logging AkioNak 9e38d35 getblockchaininfo: Loop rescan bitcoin qt the bip9 soft fork deployments instead of hard coding achow d0e0 Allow fetching tx directly from specified block in getrawtransaction kallewoof fee Add iswitness parameter to decode- and fundrawtransaction RPCs MeshCollider d16c Add scripts to dumpwallet RPC MeshCollider 9bad8d6 mempoolinfo should take:: Join worker threads before deleting work queue laanwj a41e Bech32 addresses in dumpwallet fivepiece ac1 Make signrawtransaction accept P2SH-P2WSH redeemscripts sipa GUI 64e66bb Pass SendCoinsRecipient bytes by reference practicalswift 5b8af7b Make tabs toolbar no longer have a context menu achow 9c8f Fix typo and access key in optionsdialog.
Poll ShutdownTimer after init is done MarcoFalke daaae36 qt: Rescan bitcoin qt sure splash screen is freed on AppInitMain fail laanwj ad10b90 shutdown: Build with —enable-werror under OS X practicalswift df8c build: Fix Automake warnings when running autogen. Minor fixes and clean-ups fanquake 90d Remove unused variables practicalswift 52f travis: Revert default datadir check MarcoFalke f4ed44a Add a lint check for trailing whitespace MeshCollider 4ce2f3d mininode: Full clone for git subtree check MarcoFalke Documentation Fix inconsistencies and grammar in various files MeshCollider 7db65c3 Add a comment on rescan bitcoin qt use of prevector in script gmaxwell cf Fix Markdown formatting issues in init.
Use testnet RequireStandard for -acceptnonstdtxn default luke-jr 4b65fa5 Comments: Documentation fixes for CVectorWriter ctors danra b Docs: Fix currency unit string in the help text AkioNak 21e2f2f Update developer notes with RPC response guidelines promag bcc8a62 explain how to recompile a modified unit test Sjors f Create dependencies.
Compile with -Wthread-safety-analysis if available practicalswift 0dec4cc Refactor: Rescan bitcoin qt overloads danra 0ee8 crypto: Load references const ryanofsky Remove unused fQuit var from checkqueue.
Fix launchctl not being able to stop bitcoind OmeGak 6e4e98e Perform a weaker subtree check in Travis sipa [build] Add a script for installing db4 jamesob dd Prefix leveldb debug logging laanwj 24df9af Add -debuglogfile option laanwj c17f11f Shell script cleanups practicalswift a1f Test datadir specified in conf file exists MeshCollider dd Rename rpcuser.
