Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-3.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1V9a9q-0001Ol-Fc for bitcoin-development@lists.sourceforge.net; Wed, 14 Aug 2013 12:26:34 +0000 Received-SPF: pass (sog-mx-3.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.214.175 as permitted sender) client-ip=209.85.214.175; envelope-from=mh.in.england@gmail.com; helo=mail-ob0-f175.google.com; Received: from mail-ob0-f175.google.com ([209.85.214.175]) by sog-mx-3.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1V9a9o-0007jW-Uf for bitcoin-development@lists.sourceforge.net; Wed, 14 Aug 2013 12:26:34 +0000 Received: by mail-ob0-f175.google.com with SMTP id xn12so11635829obc.6 for ; Wed, 14 Aug 2013 05:26:27 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.60.98.41 with SMTP id ef9mr1708211oeb.68.1376483187535; Wed, 14 Aug 2013 05:26:27 -0700 (PDT) Sender: mh.in.england@gmail.com Received: by 10.76.80.165 with HTTP; Wed, 14 Aug 2013 05:26:27 -0700 (PDT) Date: Wed, 14 Aug 2013 14:26:27 +0200 X-Google-Sender-Auth: dji8Hn3DdGNiXtgF73rmm2ZMuT8 Message-ID: From: Mike Hearn To: Bitcoin Dev Content-Type: multipart/alternative; boundary=089e013a100a6ebd3204e3e77731 X-Spam-Score: 0.7 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (mh.in.england[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 1.2 HTML_OBFUSCATE_10_20 BODY: Message is 10% to 20% HTML obfuscation 1.0 HTML_MESSAGE BODY: HTML included in message 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-Headers-End: 1V9a9o-0007jW-Uf Subject: [Bitcoin-development] bitcoinj 0.10 X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Aug 2013 12:26:34 -0000 --089e013a100a6ebd3204e3e77731 Content-Type: text/plain; charset=UTF-8 Hello, I'm pleased to announce version 0.10 of bitcoinj, a Java library for writing Bitcoin applications. BitcoinJ has been used to create everything from end-user wallet apps to network crawlers to SatoshiDice. To learn how to obtain bitcoinj 0.10, please see the following page: https://code.google.com/p/bitcoinj/wiki/UsingMaven The v0.10 release is signed by Andreas Schildbach's GPG key. The git hash of the release is 777e6781d789. This paragraph is signed by the same Bitcoin key as with previous releases (check their release announcements to establish continuity). Signature: H9Nl7FPnmrUOmjhUZ0+xB4YW3q5F5gIkGdvllsDWmWYvOkNQHAE9jZE0I/qE1VfLPeMV+Rzo7geTB43uDSFSMek= *New in this release* - An implementation of *micropayment channels* was added. There have been many bugfixes and improvements since the first announcement. This feature allows you to set up a 1:1 payment relationship with a remote server and after a short setup process send very tiny payments, very rapidly. It's suitable for metered billing applications. An article, "Working with micropayments" explains how to use it. This work was a joint effort between Matt and myself. - A simple sublibrary has been added that provides async IO based client/server classes that transmit length prefixed protocol buffers. - Thanks to Matija Mazi, some classes have been added that implement *the BIP 32 deterministic wallet algorithm*. Note that these classes are not yet used elsewhere in the system and full deterministic wallet support is therefore not available, however, a low level API is available for experimentation. That API is very likely to change in future releases so don't get too attached to it. - Thanks to Gary Rowe, we have integrated *a new Maven plugin* that checks the SHA1 hashes of downloaded dependencies against a hard-coded list. This means that even if an upstream Maven repository or developer were to be compromised, library dependencies could not be switched out for corrupted versions without someone noticing. For 0.10 the dependency hashes were just initialised based on what was already downloaded. In future, reproducible builds of upstream dependencies and auditing of changes would provide better security. You can and should use Gary's plugin in your own projects to defend against a possible compromise of the bitcoinj repository. - *Callback handling* has been much improved. Each event listener can have an Executor specified which takes responsibility for running the callback. If you don't specify one they run by default on a single background thread, the "user thread", instead of the origin framework threads. This means your callbacks no longer need to be thread safe as they're always run serially. You can also change the default executor if you would like to control the thread on which callbacks run, for example to marshal them into your GUI toolkit thread automatically. This fixes some of the most painful parts of the pre-0.10 API, for instance that transaction confidence listeners were not allowed to re-enter the library. - *Exception handling* has also improved. You can assign a global Thread.UncaughtExceptionHandler which receives any exceptions thrown on the user thread (i.e. by your own event listeners), as well as any internal exceptions thrown by network threads (like inability to parse a message sent by a remote peer). Because your listeners now run on a separate thread by default, you can no longer accidentally cause internal data corruption or prevent other callbacks from running by leaking exceptions out of your callbacks; a subtle knife-edge in the previous API. - Support for *automatic wallet key rotation* has been added. - We now require Bloom-capable (0.8+) peers by default and will disconnect from older nodes. This avoids accidental bandwidth saturation on mobile devices. - The wallet now accepts timelocked transactions if it created them itself. - The wallet can be told to empty itself out, in which case the fee will be subtracted from the total amount instead of added. This simplifies the common case of wanting to send your entire balance whilst still including a fee. - Some JNI peers for event listeners were added. Auto-generated JNI bindings are experimental and not yet merged in to the mainline codebase: for now they are available as part of a separate project on github. This work allows you to access the bitcoinj API using relatively natural looking C++ code and an embedded JVM. - You can now register custom PeerFilterProvider implementors to add things to Bloom filters that aren't necessarily in wallets. - We have begun adding nullity annotations to the API. Combined with a strong static analysis engine like FindBugs or the IntelliJ Inspector, you can find cases where you aren't handling possible null pointers. Note that you should configure your static analysis system to understand the Guava Preconditions assertions, as otherwise you will get false positives. - You can now control how much information Wallet toString() dumps contain more precisely. Extensions can contribute to a wallets debug dump as well, and transaction data is now optional. - Documentation: The getting started tutorial and PingService example were rewritten. New articles were added that cover optimising chain sync and using the library from non-Java languages. Existing articles were also extended and refreshed. - Many bug fixes and new methods. You should upgrade as soon as possible to get the bug fixes, in particular, one that could cause transactions inside the same block to be incorrectly re-ordered when using Bloom filtering (which can affect the wallet). The library code now has more internal annotations to help static analysis engines, and several bugs were fixed as a result of that. *API Changes* - The ScriptBuilder class now takes TransactionSignature objects, these wrap a raw ECDSA signature and the SIGHASH flags together, with utility methods to work with them. - The Locks class has been renamed to Threading. The thread on which callbacks run has been changed, see above. - The WalletEventListener.onKeyAdded method became onKeysAdded and now takes a list, to make processing of bulk adds more efficient. - BitcoinURIParseException is now checked so you can't forget to handle bogus URIs. - The Wallet.toString(..) method has additional parameters now so you can control what is included in the dump. *Known issues* * * Please see the limitations and missing features page. This page has been fleshed out since the last release with common issues and missing features. A few issues were also fixed and removed. --089e013a100a6ebd3204e3e77731 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hello,

I'm pleased to announce vers= ion 0.10 of bitcoinj, a Java library for writing Bitcoin applications.=C2= =A0Bi= tcoinJ has been used to create everything from end-user wallet apps to netw= ork crawlers to SatoshiDice.
=
To learn how to obtain bitcoinj 0.10, please see the follo= wing page:
=

The v0.10 release is signed by Andreas Sch= ildbach's GPG key. The git hash of the release is 777e6781d789. This pa= ragraph is signed by the same Bitcoin key as with previous releases (check = their release announcements to establish continuity).

Signature:=C2=A0H9Nl7FPnmrUOmjhUZ0+xB4YW3q5F5gIkGdvllsD= WmWYvOkNQHAE9jZE0I/qE1VfLPeMV+Rzo7geTB43uDSFSMek=3D

New in this release
  • An implementation of=C2=A0micropayment= channels=C2=A0was added. There have been many bugfixes and improvement= s since the first announcement. This feature allows you to set up a 1:1 pay= ment relationship with a remote server and after a short setup process send= very tiny payments, very rapidly. It's suitable for metered billing ap= plications. An article, "Working with micropayments" explains how= to use it. This work was a joint effort between Matt and myself.
  • A simple sublibrary has been added that p= rovides async IO based client/server classes that transmit length prefixed = protocol buffers.
  • Thanks to Matija Ma= zi, some classes have been added that implement=C2=A0the BIP 32 determin= istic wallet algorithm. Note that these classes are not yet used elsewh= ere in the system and full deterministic wallet support is therefore not av= ailable, however, a low level API is available for experimentation. That AP= I is very likely to change in future releases so don't get too attached= to it.
  • Thanks to Gary Rowe, we have integrated= =C2=A0a new Maven plugin=C2=A0that checks the SHA1 hashes of downloa= ded dependencies against a hard-coded list. This means that even if an upst= ream Maven repository or developer were to be compromised, library dependen= cies could not be switched out for corrupted versions without someone notic= ing. For 0.10 the dependency hashes were just initialised based on what was= already downloaded. In future, reproducible builds of upstream dependencie= s and auditing of changes would provide better security. You can and should= use=C2=A0Gary's plugin=C2=A0in your own projects to defend a= gainst a possible compromise of the bitcoinj repository.
  • Callback handling=C2=A0has been mu= ch improved. Each event listener can have an=C2=A0Executor= =C2=A0specified which takes responsibility for running the callback. If you= don't specify one they run by default on a single background thread, t= he "user thread", instead of the origin framework threads. This m= eans your callbacks no longer need to be thread safe as they're always = run serially. You can also change the default executor if you would like to= control the thread on which callbacks run, for example to marshal them int= o your GUI toolkit thread automatically. This fixes some of the most painfu= l parts of the pre-0.10 API, for instance that transaction confidence liste= ners were not allowed to re-enter the library.
  • Exception handling=C2=A0has also i= mproved. You can assign a global=C2=A0Thread.UncaughtExceptionHan= dler=C2=A0which receives any exceptions thrown on the user thread (i.e= . by your own event listeners), as well as any internal exceptions thrown b= y network threads (like inability to parse a message sent by a remote peer)= . Because your listeners now run on a separate thread by default, you can n= o longer accidentally cause internal data corruption or prevent other callb= acks from running by leaking exceptions out of your callbacks; a subtle kni= fe-edge in the previous API.
  • Support for=C2=A0automatic wallet key = rotation=C2=A0has been added.
  • We = now require Bloom-capable (0.8+) peers by default and will disconnect from = older nodes. This avoids accidental bandwidth saturation on mobile devices.=
  • The wallet now accepts timelocked transac= tions if it created them itself.
  • The = wallet can be told to empty itself out, in which case the fee will be subtr= acted from the total amount instead of added. This simplifies the common ca= se of wanting to send your entire balance whilst still including a fee.
  • Some JNI peers for event listeners were a= dded. Auto-generated JNI bindings are experimental and not yet merged in to= the mainline codebase: for now they are available as part of a separate pr= oject on github. This work allows you to access the bitcoinj API using rela= tively natural looking C++ code and an embedded JVM.
  • You can now register custom=C2=A0We have begun adding nullity annotations = to the API. Combined with a strong static analysis engine like FindBugs or = the IntelliJ Inspector, you can find cases where you aren't handling po= ssible null pointers. Note that you should configure your static analysis s= ystem to understand the Guava Preconditions assertions, as otherwise you wi= ll get false positives.
  • You can now control how much information = Wallet toString() dumps contain more precisely. Extensions can contribute t= o a wallets debug dump as well, and transaction data is now optional.
  • Documentation: The getting started tutori= al and PingService example were rewritten. New articles were added that cov= er optimising chain sync and using the library from non-Java languages. Exi= sting articles were also extended and refreshed.
  • Many bug fixes and new methods. You shoul= d upgrade as soon as possible to get the bug fixes, in particular, one that= could cause transactions inside the same block to be incorrectly re-ordere= d when using Bloom filtering (which can affect the wallet). The library cod= e now has more internal annotations to help static analysis engines, and se= veral bugs were fixed as a result of that.

API Changes

  • The=C2=A0ScriptBuilder=C2= =A0class now takes=C2=A0TransactionSignature=C2=A0objects, t= hese wrap a raw ECDSA signature and the SIGHASH flags together, with utilit= y methods to work with them.
  • The=C2=A0Locks=C2=A0class = has been renamed to=C2=A0Threading. The thread on which call= backs run has been changed, see above.
  • The=C2=A0WalletEventListener.on= KeyAdded=C2=A0method became=C2=A0onKeysAdded=C2=A0and n= ow takes a list, to make processing of bulk adds more efficient.
  • BitcoinURIParseException= =C2=A0is now checked so you can't forget to handle bogus URIs.
  • The=C2=A0Wallet.toString(..)=C2=A0method has additional parameters now so you can control what is inc= luded in the dump.
Known issues

Please = see the=C2=A0limitations and missing features=C2=A0page. This pa= ge has been fleshed out since the last release with common issues and missi= ng features. A few issues were also fixed and removed.
--089e013a100a6ebd3204e3e77731--