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Merge #9784: Restore removed release notes.

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1577f07 Restore removed release notes. (Gregory Maxwell)
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Wladimir J. van der Laan 2017-02-17 21:46:34 +01:00
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@ -280,6 +280,46 @@ P2P connection management
- New connections to manually added peers are performed more quickly.
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block history is assumed true, this means that even outdated software can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
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.
0.14.0 Change log
=================