- `importprunedfunds` only accepts two required arguments. Some versions accept
an optional third arg, which was always ignored. Make sure to never pass more
than two arguments.
Fee Estimation Changes
----------------------
- Since 0.13.2 fee estimation for a confirmation target of 1 block has been
disabled. This is only a minor behavior change as there was often insufficient
data for this target anyway. `estimatefee 1` will now always return -1 and
`estimatesmartfee 1` will start searching at a target of 2.
- The default target for fee estimation is changed to 6 blocks in both the GUI
(previously 25) and for RPC calls (previously 2).
Removal of Priority Estimation
-------------------------------
- Estimation of "priority" needed for a transaction to be included within a target
number of blocks has been removed. The rpc calls are deprecated and will either
return -1 or 1e24 appropriately. The format for `fee_estimates.dat` has also
changed to no longer save these priority estimates. It will automatically be
converted to the new format which is not readable by prior versions of the
software.
- The concept of "priority" (coin age) transactions is planned to be removed in
the next major version. To prepare for this, the default for the rate limit of
priority transactions (`-limitfreerelay`) has been set to `0` kB/minute. This
is not to be confused with the `prioritisetransaction` RPC which will remain
supported for adding fee deltas to transactions.
P2P connection management
--------------------------
- Peers manually added through the addnode option or addnode RPC now have their own
limit of eight connections which does not compete with other inbound or outbound
connection usage and is not subject to the maxconnections limitation.
- New connections to manually added peers are much faster.
Introduction of assumed-valid blocks
-------------------------------------
- A significant portion of the initial block download time is spent verifying
scripts/signatures. Although the verification must pass to ensure the security
of the system, no other result from this verification is needed: If the node
knew the history of a given block were valid it could skip checking scripts
for its ancestors.
- A new configuration option 'assumevalid' is provided to express this knowledge
to the software. Unlike the 'checkpoints' in the past this setting does not
force the use of a particular chain: chains that are consistent with it are
processed quicker, but other chains are still accepted if they'd otherwise
be chosen as best. Also unlike 'checkpoints' the user can configure which
block history is assumed true, this means that even outdated software can
sync more quickly if the setting is updated by the user.
- Because the validity of a chain history is a simple objective fact it is much
easier to review this setting. As a result the software ships with a default
value adjusted to match the current chain shortly before release. The use
of this default value can be disabled by setting -assumevalid=0
0.14.0 Change log
=================
Detailed release notes follow. This overview includes changes that affect
behavior, not code moves, refactors and string updates. For convenience in locating
the code changes and accompanying discussion, both the pull request and
git merge commit are mentioned.
### RPC and REST
UTXO set query (`GET /rest/getutxos/<checkmempool>/<txid>-<n>/<txid>-<n>/.../<txid>-<n>.<bin|hex|json>`) responses
were changed to return status code HTTP_BAD_REQUEST (400) instead of HTTP_INTERNAL_SERVER_ERROR (500) when requests
contain invalid parameters.
The first boolean argument to `getaddednodeinfo` has been removed. This is an incompatible change.
Call "getmininginfo" loses the "testnet" field in favor of the more generic "chain" (which has been present for years).
### Configuration and command-line options
### Block and transaction handling
### P2P protocol and network code
### Validation
### Build system
### Wallet
0.14.0 Fundrawtransaction change address reuse
==============================================
Before 0.14, `fundrawtransaction` was by default wallet stateless. In almost all cases `fundrawtransaction` does add a change-output to the outputs of the funded transaction. Before 0.14, the used keypool key was never marked as change-address key and directly returned to the keypool (leading to address reuse).
Before 0.14, calling `getnewaddress` directly after `fundrawtransaction` did generate the same address as the change-output address.
Since 0.14, fundrawtransaction does reserve the change-output-key from the keypool by default (optional by setting `reserveChangeKey`, default = `true`)
Users should also consider using `getrawchangeaddress()` in conjunction with `fundrawtransaction`'s `changeAddress` option.
The Bitcoin-Core project has been designed to support multiple localisations. This makes adding new phrases, and completely new languages easily achievable. For managing all application translations, Bitcoin-Core makes use of the Transifex online translation management tool.
The Bitcoin-Core project has been designed to support multiple localisations. This makes adding new phrases, and completely new languages easily achievable. For managing all application translations, Bitcoin-Core makes use of the Transifex online translation management tool.
### Helping to translate (using Transifex)
### Helping to translate (using Transifex)
Transifex is setup to monitor the Github repo for updates, and when code containing new translations is found, Transifex will process any changes. It may take several hours after a pull-request has been merged, to appear in the Transifex web interface.
Transifex is setup to monitor the GitHub repo for updates, and when code containing new translations is found, Transifex will process any changes. It may take several hours after a pull-request has been merged, to appear in the Transifex web interface.
Multiple language support is critical in assisting Bitcoin’s global adoption, and growth. One of Bitcoin’s greatest strengths is cross-border money transfers, any help making that easier is greatly appreciated.
Multiple language support is critical in assisting Bitcoin’s global adoption, and growth. One of Bitcoin’s greatest strengths is cross-border money transfers, any help making that easier is greatly appreciated.
For general PRs, you shouldn’t include any updates to the translation source files. They will be updated periodically, primarily around pre-releases, allowing time for any new phrases to be translated before public releases. This is also important in avoiding translation related merge conflicts.
For general PRs, you shouldn’t include any updates to the translation source files. They will be updated periodically, primarily around pre-releases, allowing time for any new phrases to be translated before public releases. This is also important in avoiding translation related merge conflicts.
When an updated source file is merged into the Github repo, Transifex will automatically detect it (although it can take several hours). Once processed, the new strings will show up as "Remaining" in the Transifex web interface and are ready for translators.
When an updated source file is merged into the GitHub repo, Transifex will automatically detect it (although it can take several hours). Once processed, the new strings will show up as "Remaining" in the Transifex web interface and are ready for translators.
To create the pull-request, use the following commands:
To create the pull-request, use the following commands:
<string>%1 will download and store a copy of the Bitcoin block chain. At least %2GB of data will be stored in this directory, and it will grow over time. The wallet will also be stored in this directory.</string>
</property>
<property name="wordWrap">
<property name="wordWrap">
<bool>true</bool>
<bool>true</bool>
</property>
</property>
@ -203,6 +200,36 @@
</item>
</item>
</layout>
</layout>
</item>
</item>
<item>
<widget class="QLabel" name="lblExplanation1">
<property name="text">
<string>When you click OK, %1 will begin to download and process the full %4 block chain (%2GB) starting with the earliest transactions in %3 when %4 initially launched.</string>
</property>
<property name="wordWrap">
<bool>true</bool>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="lblExplanation2">
<property name="text">
<string>This initial synchronisation is very demanding, and may expose hardware problems with your computer that had previously gone unnoticed. Each time you run %1, it will continue downloading where it left off.</string>
</property>
<property name="wordWrap">
<bool>true</bool>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="lblExplanation3">
<property name="text">
<string>If you have chosen to limit block chain storage (pruning), the historical data must still be downloaded and processed, but will be deleted afterward to keep your disk usage low.</string>
"1. \"height\" (numeric, required) The block height to prune up to. May be set to a discrete height, or to a unix timestamp to prune based on block time.\n"
"1. \"height\" (numeric, required) The block height to prune up to. May be set to a discrete height, or a unix timestamp\n"
" to prune blocks whose block time is at least 2 hours older than the provided timestamp.\n"
"\"scriptPubKey\": \"<script>\" | { \"address\":\"<address>\" }, (string / json, required) Type of scriptPubKey (string for script, json for address)\n"
"\"scriptPubKey\": \"<script>\" | { \"address\":\"<address>\" }, (string / json, required) Type of scriptPubKey (string for script, json for address)\n"
"\"timestamp\": timestamp | \"now\" , (integer / string, required) Creation time of the key in seconds since epoch (Jan 1 1970 GMT),\n"
" or the string \"now\" to substitute the current synced blockchain time. The timestamp of the oldest\n"
" key will determine how far back blockchain rescans need to begin for missing wallet transactions.\n"
"\"now\" can be specified to bypass scanning, for keys which are known to never have been used, and\n"
" 0 can be specified to scan the entire blockchain. Blocks up to 2 hours before the earliest key\n"
" creation time of all keys being imported by the importmulti call will be scanned.\n"
"\"redeemscript\": \"<script>\" , (string, optional) Allowed only if the scriptPubKey is a P2SH address or a P2SH scriptPubKey\n"
"\"redeemscript\": \"<script>\" , (string, optional) Allowed only if the scriptPubKey is a P2SH address or a P2SH scriptPubKey\n"
"\"pubkeys\": [\"<pubKey>\", ... ] , (array, optional) Array of strings giving pubkeys that must occur in the output or redeemscript\n"
"\"pubkeys\": [\"<pubKey>\", ... ] , (array, optional) Array of strings giving pubkeys that must occur in the output or redeemscript\n"
"\"keys\": [\"<key>\", ... ] , (array, optional) Array of strings giving private keys whose corresponding public keys must occur in the output or redeemscript\n"
"\"keys\": [\"<key>\", ... ] , (array, optional) Array of strings giving private keys whose corresponding public keys must occur in the output or redeemscript\n"
"\"internal\": <true> , (boolean, optional, default: false) Stating whether matching outputs should be be treated as not incoming payments\n"
"\"internal\": <true> , (boolean, optional, default: false) Stating whether matching outputs should be be treated as not incoming payments\n"
"\"watchonly\": <true> , (boolean, optional, default: false) Stating whether matching outputs should be considered watched even when they're not spendable, only allowed if keys are empty\n"
"\"watchonly\": <true> , (boolean, optional, default: false) Stating whether matching outputs should be considered watched even when they're not spendable, only allowed if keys are empty\n"
"\"label\": <label> , (string, optional, default: '') Label to assign to the address (aka account name, for now), only allowed with internal=false\n"
"\"label\": <label> , (string, optional, default: '') Label to assign to the address (aka account name, for now), only allowed with internal=false\n"