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From: Mike Hearn <mike@plan99.net>
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Subject: [Bitcoin-development] bitcoinj 0.9
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--089e013cb9466e06fc04df602699
Content-Type: text/plain; charset=UTF-8
I'm pleased to announce the release of bitcoinj 0.9, a Java library for
working with the Bitcoin protocol. Both simplified and full verification
are supported. BitcoinJ has been used to create everything from end-user
wallet apps to network crawlers to SatoshiDice.
To get bitcoinj 0.9, check out our source from git and then run *git fetch
--all; git checkout **67b187c4c4c4*. This will place you on the 0.9 branch
in a secure manner. The roots of trust are the announcement sent to
bitcoinj-announce (which is signed by the google.comDKIM key) and the Maven
page of the bitcoinj website. This paragraph is signed with the same key as
the previous releases (16vSNFP5Acsa6RBbjEA7QYCCRDRGXRFH4m). In addition,
the 0.9 release is signed by Andreas Schildbach (GPG key id 0x8B877A60,
accessible via http://bitcoin.org/andreas_schildbach.asc) and can be
verified with *git tag -v 0.9* once you have his key.
Signature for the last paragraph:
IEVMFkGVfE5Q7mezpNc2srdMXMkE66AEW2g7AtWa2KGa2PcK5ehqGbKPOWaL2oftcN/939VHWViMLnCKGrS3E9g=
We have a new article in the documentation library, Working with
contracts<https://code.google.com/p/bitcoinj/wiki/WorkingWithContracts>.
It shows how to create and use multi-signature transactions, signed by
different parties, using a simple API.
*New in this release*
- Thanks to Matt Corallo, we now have a basic *fee solver* that will
attach the correct (minimum) fee per kilobyte to a created transaction
using the 0.8.2+ fee rules. Note that there's no attempt to minimize the
size of a calculated transaction and thus fee, but some other optimisations
are applied. By default bitcoinj will always attach a fee, to learn how to
customise this refer to the article *Working with the wallet*.
- The wallet's re-org handling code was rewritten and simplified.
- A new class, WalletAppKit, simplifies the process of instantiating all
the objects and files that are needed to run a basic app that can
send/receive money.
- Add optional support for Pieter Wiulle's native secp256k1
implementation, which is significantly faster than Bouncy Castle.
- Improvements to coin selection in the wallet.
- Many new functions and minor API improvements, for instance, it's now
easier to tell the wallet to allow spending of unconfirmed coins.
- A new ScriptBuilder class simplifies the process of constructing
various kinds of scripts.
- A new block importer tool can parse bitcoind block files and process
them, which is faster than streaming them over a network connection.
- Support for the regtest mode added by the C++ side pull req 2632. This
makes app development and testing easier by eliminating the need to wait
for a block.
- Many bug fixes and testing improvements.
*API changes*
- NetworkParameters has now been refactored into separate classes.
- Wallet extensions have been tweaked, please refer to the javadocs for
details.
- Many other minor additions and changes that are mostly backwards
compatible.
*Known issues*
*
*
Please see the limitations and missing features
page<https://code.google.com/p/bitcoinj/wiki/Limitations> on
our website.
--089e013cb9466e06fc04df602699
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><span style=3D"font-family:arial,sans-serif;font-size:13px=
">I'm pleased to announce the release of bitcoinj 0.9, a Java library f=
or working with the Bitcoin protocol.=C2=A0</span><span style=3D"font-size:=
13px;font-family:Arial,Helvetica,sans-serif">Both simplified and full verif=
ication are supported. BitcoinJ has been used to create everything from end=
-user wallet apps to network crawlers to SatoshiDice.</span><div style=3D"f=
ont-family:arial,sans-serif;font-size:13px">
<span style=3D"font-family:Arial,Helvetica,sans-serif"><br></span></div><di=
v style=3D"font-family:arial,sans-serif;font-size:13px"><span style=3D"font=
-family:Arial,Helvetica,sans-serif">To get bitcoinj 0.9, check out our sour=
ce from git and then run=C2=A0<b>git fetch --all; git checkout=C2=A0</b></s=
pan><font face=3D"Arial, Helvetica, sans-serif"><b>67b187c4c4c4</b>. This w=
ill place you on the 0.9 branch in a secure manner. The roots of trust are =
the announcement sent to bitcoinj-announce (which is signed by the=C2=A0<a =
href=3D"http://google.com/" target=3D"_blank">google.com</a>DKIM key) and t=
he Maven page of the bitcoinj website. This paragraph is signed with the sa=
me key as the previous releases (</font><span style=3D"font-size:12.7272720=
33691406px;margin:0px;padding:0px;border:0px;vertical-align:baseline;font-f=
amily:Arial,Helvetica,sans-serif">16vSNFP5Acsa6RBbjEA7QYCCRDRGXR</span><spa=
n style=3D"font-size:12.727272033691406px;margin:0px;padding:0px;border:0px=
;vertical-align:baseline;font-family:Arial,Helvetica,sans-serif">FH4m). In =
addition, the 0.9 release is signed by Andreas Schildbach (GPG key id=C2=A0=
0x8B877A60, accessible via=C2=A0</span><a href=3D"http://bitcoin.org/andrea=
s_schildbach.asc" target=3D"_blank">http://bitcoin.org/andreas_schildbach.a=
sc</a><span style=3D"font-family:Arial,Helvetica,sans-serif;font-size:12.72=
7272033691406px">) and can be verified with=C2=A0</span><b style=3D"font-fa=
mily:Arial,Helvetica,sans-serif;font-size:12.727272033691406px">git tag -v =
0.9</b><span style=3D"font-family:Arial,Helvetica,sans-serif;font-size:12.7=
27272033691406px">=C2=A0once you have his key.</span></div>
<div style=3D"font-family:arial,sans-serif;font-size:13px"><font face=3D"Ar=
ial, Helvetica, sans-serif"><br></font></div><div style=3D"font-family:aria=
l,sans-serif;font-size:13px"><font face=3D"Arial, Helvetica, sans-serif">Si=
gnature for the last paragraph: =C2=A0IEVMFkGVfE5Q7mezpNc2srdMXMkE66AEW2g7A=
tWa2KGa2PcK5ehqGbKPOWaL2oftcN/939VHWViMLnCKGrS3E9g=3D</font></div>
<div style=3D"font-family:arial,sans-serif;font-size:13px"><font face=3D"Ar=
ial, Helvetica, sans-serif"><br></font></div><div style=3D"font-size:13px">=
<font face=3D"Arial, Helvetica, sans-serif">We have a new article in the do=
cumentation library, <a href=3D"https://code.google.com/p/bitcoinj/wiki/Wor=
kingWithContracts">Working with contracts</a>. =C2=A0It shows how to create=
and use multi-signature transactions, signed by different parties, using a=
simple API.</font></div>
<div style=3D"font-family:arial,sans-serif;font-size:13px"><font face=3D"Ar=
ial, Helvetica, sans-serif"><br></font></div><div style=3D"font-family:aria=
l,sans-serif;font-size:13px"><font face=3D"Arial, Helvetica, sans-serif"><b=
>New in this release</b></font></div>
<div style=3D"font-family:arial,sans-serif;font-size:13px"><ul style=3D"pad=
ding-left:25px;max-width:62em"><li style=3D"margin-left:15px;margin-bottom:=
0.3em">Thanks to Matt Corallo, we now have a basic <b>fee solver</b> that w=
ill attach the correct (minimum) fee per kilobyte to a created transaction =
using the 0.8.2+ fee rules. Note that there's no attempt to minimize th=
e size of a calculated transaction and thus fee, but some other optimisatio=
ns are applied. By default bitcoinj will always attach a fee, to learn how =
to customise this refer to the article=C2=A0<i>Working with the wallet</i>.=
</li>
<li style=3D"margin-left:15px;margin-bottom:0.3em">The wallet's re-org =
handling code was rewritten and simplified.</li><li style=3D"margin-left:15=
px;margin-bottom:0.3em">A new class,=C2=A0<tt style=3D"font-family:Monaco,&=
#39;DejaVu Sans Mono','Bitstream Vera Sans Mono','Lucida Co=
nsole',monospace;font-size:12px;max-width:66em">WalletAppKit</tt>, simp=
lifies the process of instantiating all the objects and files that are need=
ed to run a basic app that can send/receive money.</li>
<li style=3D"margin-left:15px;margin-bottom:0.3em">Add optional support for=
Pieter Wiulle's native secp256k1 implementation, which is significantl=
y faster than Bouncy Castle.</li><li style=3D"margin-left:15px;margin-botto=
m:0.3em">
Improvements to coin selection in the wallet.</li><li style=3D"margin-left:=
15px;margin-bottom:0.3em">Many new functions and minor API improvements, fo=
r instance, it's now easier to tell the wallet to allow spending of unc=
onfirmed coins.</li>
<li style=3D"margin-left:15px;margin-bottom:0.3em">A new=C2=A0<tt style=3D"=
font-family:Monaco,'DejaVu Sans Mono','Bitstream Vera Sans Mono=
','Lucida Console',monospace;font-size:12px;max-width:66em">Scr=
iptBuilder</tt>=C2=A0class simplifies the process of constructing various k=
inds of scripts.</li>
<li style=3D"margin-left:15px;margin-bottom:0.3em">A new block importer too=
l can parse bitcoind block files and process them, which is faster than str=
eaming them over a network connection.</li><li style=3D"margin-left:15px;ma=
rgin-bottom:0.3em">
Support for the regtest mode added by the C++ side pull req 2632. This make=
s app development and testing easier by eliminating the need to wait for a =
block.</li><li style=3D"margin-left:15px;margin-bottom:0.3em">Many bug fixe=
s and testing improvements.</li>
</ul><p style=3D"line-height:1.25em;max-width:64em"><b>API changes</b></p><=
ul style=3D"padding-left:25px;max-width:62em"><li style=3D"margin-left:15px=
;margin-bottom:0.3em"><tt style=3D"font-family:Monaco,'DejaVu Sans Mono=
','Bitstream Vera Sans Mono','Lucida Console',monospace=
;font-size:12px;max-width:66em">NetworkParameters</tt>=C2=A0has now been re=
factored into separate classes.</li>
<li style=3D"margin-left:15px;margin-bottom:0.3em">Wallet extensions have b=
een tweaked, please refer to the javadocs for details.</li><li style=3D"mar=
gin-left:15px;margin-bottom:0.3em">Many other minor additions and changes t=
hat are mostly backwards compatible.</li>
</ul></div><div style=3D"font-family:arial,sans-serif;font-size:13px"><font=
face=3D"Arial, Helvetica, sans-serif"><b>Known issues</b></font></div><div=
style=3D"font-family:arial,sans-serif;font-size:13px"><font face=3D"Arial,=
Helvetica, sans-serif"><b><br>
</b></font></div><div style=3D"font-family:arial,sans-serif;font-size:13px"=
><font face=3D"Arial, Helvetica, sans-serif">Please see the=C2=A0<a href=3D=
"https://code.google.com/p/bitcoinj/wiki/Limitations" target=3D"_blank">lim=
itations and missing features page</a>=C2=A0on our website.</font></div>
</div>
--089e013cb9466e06fc04df602699--
|
