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Set version numbers for 0.8.1 release
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,99 +1,5 @@ | ||
| (note: this is a temporary file, to be added-to by anybody, and deleted at | ||
| release time) | ||
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| Building this from | ||
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| $ git shortlog --no-merges v0.7.1.. | ||
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| Incompatible Changes | ||
| -------------------- | ||
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| This release no longer maintains a full index of historical transaction ids | ||
| by default, so looking up an arbitrary transaction using the getrawtransaction | ||
| RPC call will not work. If you need that functionality, you must run once | ||
| with -txindex -reindex to rebuild block-chain indices (see below for more | ||
| details). | ||
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| Improvements | ||
| ------------ | ||
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| Mac and Windows binaries are signed with certificates owned by the Bitcoin | ||
| Foundation, to be compatible with the new security features in OSX 10.8 and | ||
| Windows 8. | ||
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| LevelDB, a fast, open-source, non-relational database from Google, is | ||
| now used to store transaction and block indices. LevelDB works much better | ||
| on machines with slow I/O and is faster in general. Berkeley DB is now only | ||
| used for the wallet.dat file (public and private wallet keys and transactions | ||
| relevant to you). | ||
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| Pieter Wuille implemented many optimizations to the way transactions are | ||
| verified, so a running, synchronized node uses much less memory and does | ||
| much less I/O. He also implemented parallel signature checking, so if you | ||
| have a multi-CPU machine all CPUs will be used to verify transactions. | ||
|
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| New Features | ||
| ------------ | ||
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| "Bloom filter" support in the network protocol for sending only relevant transactions to | ||
| lightweight clients. | ||
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| contrib/verifysfbinaries is a shell-script to verify that the binary downloads | ||
| at sourceforge have not been tampered with. If you are able, you can help make | ||
| everybody's downloads more secure by running this occasionally to check PGP | ||
| signatures against download file checksums. | ||
|
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| contrib/spendfrom is a python-language command-line utility that demonstrates | ||
| how to use the "raw transactions" JSON-RPC api to send coins received from particular | ||
| addresses (also known as "coin control"). | ||
|
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| New/changed settings (command-line or bitcoin.conf file) | ||
| -------------------------------------------------------- | ||
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| dbcache : now controls LevelDB memory usage. Running with (for example) -dbcache=1000 | ||
| will use a gigabyte of memory and might make the initial blockchain download faster. | ||
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| par : controls how many threads to use to validate transactions. Defaults to the number | ||
| of CPUs on your machine, use -par=1 to limit to a single CPU. | ||
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| txindex : maintains an extra index of old, spent transaction ids so they will be found | ||
| by the getrawtransaction JSON-RPC method. Can only be set when the database is | ||
| initialized. | ||
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| reindex : rebuild block and transaction indices from the downloaded block data. | ||
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| New JSON-RPC API Features | ||
| ------------------------- | ||
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| lockunspent / listlockunspent allow locking transaction outputs for a period of time so | ||
| they will not be spent by other processes that might be accessing the same wallet. | ||
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| addnode / getaddednodeinfo methods, to connect to specific peers without restarting. | ||
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| importprivkey now takes an optional boolean parameter (default true) to control whether | ||
| or not to rescan the blockchain for transactions after importing a new private key. | ||
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| gettxout retrieves a single transaction output from the current set of unspent outputs. | ||
| Optionally, the mempool transactions are taken into account. | ||
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| gettxoutsetinfo calculates statistics about the current set of unspent outputs. | ||
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| Important Bug Fixes | ||
| ------------------- | ||
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| Privacy leak: the position of the "change" output in most transactions was not being | ||
| properly randomized, making network analysis of the transaction graph to identify | ||
| users' wallets easier. | ||
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| Zero-confirmation transaction vulnerability: accepting zero-confirmation transactions | ||
| (transactions that have not yet been included in a block) from somebody you do not | ||
| trust is still not recommended, because there will always be ways for attackers to | ||
| double-spend zero-confirmation transactions. However, this release includes a bug | ||
| fix that makes it a little bit more difficult for attackers to double-spend a | ||
| certain type ("lockTime in the future") of zero-confirmation transaction. | ||
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| Dependency Changes | ||
| ------------------ | ||
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| Qt 4.8.3 (compiling against older versions of Qt 4 should continue to work) | ||
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| Version 0.8.1 introduces a temporary block validation rule to avoid an incompatibility | ||
| with version 0.7.2 and earlier. |
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