[Bitcoin-development] [ann] Bitcoin Core 0.9.3 rc1 is available for download

Wladimir laanwj at gmail.com
Thu Aug 28 14:41:27 UTC 2014

Bitcoin Core version 0.9.3rc1 is now available from:


This is a release candidate (test version) for a new minor version
release, bringing
only bug fixes and updated translations.

Please report bugs using the issue tracker at github:


Upgrading and downgrading

How to Upgrade

If you are running an older version, shut it down. Wait until it has completely
shut down (which might take a few minutes for older versions), then run the
installer (on Windows) or just copy over /Applications/Bitcoin-Qt (on Mac) or
bitcoind/bitcoin-qt (on Linux).

If you are upgrading from version 0.7.2 or earlier, the first time you run
0.9.3 your blockchain files will be re-indexed, which will take anywhere from
30 minutes to several hours, depending on the speed of your machine.

Downgrading warnings

The 'chainstate' for this release is not always compatible with previous
releases, so if you run 0.9.x and then decide to switch back to a
0.8.x release you might get a blockchain validation error when starting the
old release (due to 'pruned outputs' being omitted from the index of
unspent transaction outputs).

Running the old release with the -reindex option will rebuild the chainstate
data structures and correct the problem.

Also, the first time you run a 0.8.x release on a 0.9 wallet it will rescan
the blockchain for missing spent coins, which will take a long time (tens
of minutes on a typical machine).

0.9.3 Release notes

- Avoid a segfault on getblock if it can't read a block from disk
- Add paranoid return value checks in base58

Protocol and network code:
- Don't poll showmyip.com, it doesn't exist anymore
- Add a way to limit deserialized string lengths and use it
- Add a new checkpoint at block 295,000
- Increase IsStandard() scriptSig length
- Avoid querying DNS seeds, if we have open connections

- Check redeemScript size does not exceed 520 byte limit
- Ignore (and warn about) too-long redeemScripts while loading wallet

- fix 'opens in testnet mode when presented with a BIP-72 link with no fallback'
- AvailableCoins: acquire cs_main mutex
- Fix unicode character display on MacOSX

- key.cpp: fail with a friendlier message on missing ssl EC support
- Remove bignum dependency for scripts
- Upgrade OpenSSL to 1.0.1i (see
https://www.openssl.org/news/secadv_20140806.txt - just to be sure, no
critical issues for Bitcoin Core)
- Upgrade miniupnpc to 1.9.20140701
- Fix boost detection in build system on some platforms


Thanks to everyone who contributed to this release:

- Andrew Poelstra
- Cory Fields
- Jeff Garzik
- Johnathan Corgan
- Julian Haight
- Michael Ford
- Pavel Vasin
- Peter Todd
- Pieter Wuille
- Rose Toomey
- Ruben Dario Ponticelli
- Trevin Hofmann
- Wladimir J. van der Laan
- Zak Wilcox

As well as everyone that helped translating on

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