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Diffstat (limited to 'doc/release-notes.md')
| -rw-r--r-- | doc/release-notes.md | 125 |
1 files changed, 57 insertions, 68 deletions
diff --git a/doc/release-notes.md b/doc/release-notes.md index a13ede2dd5..4ecca7897c 100644 --- a/doc/release-notes.md +++ b/doc/release-notes.md @@ -8,7 +8,7 @@ Bitcoin Core version *version* is now available from: This is a new major version release, including new features, various bugfixes and performance improvements, as well as updated translations. -Please report bugs using the issue tracker at github: +Please report bugs using the issue tracker at GitHub: <https://github.com/bitcoin/bitcoin/issues> @@ -16,16 +16,39 @@ To receive security and update notifications, please subscribe to: <https://bitcoincore.org/en/list/announcements/join/> +How to Upgrade +============== + +If you are running an older version, shut it down. Wait until it has completely +shut down (which might take a few minutes for older versions), then run the +installer (on Windows) or just copy over `/Applications/Bitcoin-Qt` (on Mac) +or `bitcoind`/`bitcoin-qt` (on Linux). + +The first time you run version 0.15.0, your chainstate database will be converted to a +new format, which will take anywhere from a few minutes to half an hour, +depending on the speed of your machine. + +Note that the block database format also changed in version 0.8.0 and there is no +automatic upgrade code from before version 0.8 to version 0.15.0. Upgrading +directly from 0.7.x and earlier without redownloading the blockchain is not supported. +However, as usual, old wallet versions are still supported. + +Downgrading warning +------------------- + +The chainstate database for this release is not compatible with previous +releases, so if you run 0.15 and then decide to switch back to any +older version, you will need to run the old release with the `-reindex-chainstate` +option to rebuild the chainstate data structures in the old format. + +If your node has pruning enabled, this will entail re-downloading and +processing the entire blockchain. + Compatibility ============== Bitcoin Core is extensively tested on multiple operating systems using -the Linux kernel, macOS 10.8+, and Windows Vista and later. - -Microsoft ended support for Windows XP on [April 8th, 2014](https://www.microsoft.com/en-us/WindowsForBusiness/end-of-xp-support). -No attempt is made to prevent installing or running the software on Windows XP, you -can still do so at your own risk but be aware that there are known instabilities. -Please do not report issues about Windows XP to the issue tracker. +the Linux kernel, macOS 10.8+, and Windows Vista and later. Windows XP is not supported. Bitcoin Core should also work on most other Unix-like systems but is not frequently tested on them. @@ -33,69 +56,35 @@ frequently tested on them. Notable changes =============== -Low-level RPC changes +Miner block size limiting deprecated +------------------------------------ + +Though blockmaxweight has been preferred for limiting the size of blocks returned by +getblocktemplate since 0.13.0, blockmaxsize remained as an option for those who wished +to limit their block size directly. Using this option resulted in a few UI issues as +well as non-optimal fee selection and ever-so-slightly worse performance, and has thus +now been deprecated. Further, the blockmaxsize option is now used only to calculate an +implied blockmaxweight, instead of limiting block size directly. Any miners who wish +to limit their blocks by size, instead of by weight, will have to do so manually by +removing transactions from their block template directly. + +HD-wallets by default --------------------- +Due to a backward-incompatible change in the wallet database, wallets created +with version 0.16.0 will be rejected by previous versions. Also, version 0.16.0 +will only create hierarchical deterministic (HD) wallets. -- The new database model no longer stores information about transaction - versions of unspent outputs. This means that: - - The `gettxout` RPC no longer has a `version` field in the response. - - The `gettxoutsetinfo` RPC reports `hash_serialized_2` instead of `hash_serialized`, - which does not commit to the transaction versions of unspent outputs, but does - commit to the height and coinbase information. - - The `gettxoutsetinfo` response now contains `disk_size` and `bogosize` instead of - `bytes_serialized`. The first is a more accurate estimate of actual disk usage, but - is not deterministic. The second is unrelated to disk usage, but is a - database-independent metric of UTXO set size: it counts every UTXO entry as 50 + the - length of its scriptPubKey. - - The `getutxos` REST path no longer reports the `txvers` field in JSON format, - and always reports 0 for transaction versions in the binary format - - -- Error codes have been updated to be more accurate for the following error cases: - - `getblock` now returns RPC_MISC_ERROR if the block can't be found on disk (for - example if the block has been pruned). Previously returned RPC_INTERNAL_ERROR. - - `pruneblockchain` now returns RPC_MISC_ERROR if the blocks cannot be pruned - because the node is not in pruned mode. Previously returned RPC_METHOD_NOT_FOUND. - - `pruneblockchain` now returns RPC_INVALID_PARAMETER if the blocks cannot be pruned - because the supplied timestamp is too late. Previously returned RPC_INTERNAL_ERROR. - - `pruneblockchain` now returns RPC_MISC_ERROR if the blocks cannot be pruned - because the blockchain is too short. Previously returned RPC_INTERNAL_ERROR. - - `setban` now returns RPC_CLIENT_INVALID_IP_OR_SUBNET if the supplied IP address - or subnet is invalid. Previously returned RPC_CLIENT_NODE_ALREADY_ADDED. - - `setban` now returns RPC_CLIENT_INVALID_IP_OR_SUBNET if the user tries to unban - a node that has not previously been banned. Previously returned RPC_MISC_ERROR. - - `removeprunedfunds` now returns RPC_WALLET_ERROR if bitcoind is unable to remove - the transaction. Previously returned RPC_INTERNAL_ERROR. - - `removeprunedfunds` now returns RPC_INVALID_PARAMETER if the transaction does not - exist in the wallet. Previously returned RPC_INTERNAL_ERROR. - - `fundrawtransaction` now returns RPC_INVALID_ADDRESS_OR_KEY if an invalid change - address is provided. Previously returned RPC_INVALID_PARAMETER. - - `fundrawtransaction` now returns RPC_WALLET_ERROR if bitcoind is unable to create - the transaction. The error message provides further details. Previously returned - RPC_INTERNAL_ERROR. - - `bumpfee` now returns RPC_INVALID_PARAMETER if the provided transaction has - descendants in the wallet. Previously returned RPC_MISC_ERROR. - - `bumpfee` now returns RPC_INVALID_PARAMETER if the provided transaction has - descendants in the mempool. Previously returned RPC_MISC_ERROR. - - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction has - has been mined or conflicts with a mined transaction. Previously returned - RPC_INVALID_ADDRESS_OR_KEY. - - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction is not - BIP 125 replaceable. Previously returned RPC_INVALID_ADDRESS_OR_KEY. - - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction has already - been bumped by a different transaction. Previously returned RPC_INVALID_REQUEST. - - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction contains - inputs which don't belong to this wallet. Previously returned RPC_INVALID_ADDRESS_OR_KEY. - - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction has multiple change - outputs. Previously returned RPC_MISC_ERROR. - - `bumpfee` now returns RPC_WALLET_ERROR if the provided transaction has no change - output. Previously returned RPC_MISC_ERROR. - - `bumpfee` now returns RPC_WALLET_ERROR if the fee is too high. Previously returned - RPC_MISC_ERROR. - - `bumpfee` now returns RPC_WALLET_ERROR if the fee is too low. Previously returned - RPC_MISC_ERROR. - - `bumpfee` now returns RPC_WALLET_ERROR if the change output is too small to bump the - fee. Previously returned RPC_MISC_ERROR. +Low-level RPC changes +---------------------- +- The "currentblocksize" value in getmininginfo has been removed. +- The deprecated RPC `getinfo` was removed. It is recommended that the more specific RPCs are used: + * `getblockchaininfo` + * `getnetworkinfo` + * `getwalletinfo` + * `getmininginfo` + +- `dumpwallet` no longer allows overwriting files. This is a security measure + as well as prevents dangerous user mistakes. Credits ======= |