dash-docs/_releases/2013-09-03-v0.8.4.md
David A. Harding cbebe461ff Releases: Variablize Release Notes
Add additional variables to the release note files to allow setting the
version number and date.  The version number is required, and can be
used to automatically set the release notes title.  The date is optional
and can be set hours/days after the release.

Additionally, a Makefile test is added that checks whether the download
files exist on the Bitcoin.org server.  This can help prevent creating a
broken Download page.

* Set variables for all previous releases

* Document variables in README.md

* Update code and templates to use variables

* Add the Download page links to the "dl" CSS class. Also add newlines
  to make the HTML a bit easier to parse using sed

* Add a new Liquid plugin to print warnings. This is used to print a
  non-error warning if any release is created without the optional date
2015-02-27 08:15:50 -05:00

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Markdown

---
## Please see _releases/0.10.0.md for a release template
required_version: 0.8.4
optional_date: 2013-09-03
optional_title: Bitcoin-Qt version 0.8.4 released
---
Bitcoin-Qt version 0.8.4 is now available from:
<http://sourceforge.net/projects/bitcoin/files/Bitcoin/bitcoin-0.8.4/>
This is a maintenance release to fix a critical bug and three
security issues; we urge all users to upgrade.
Please report bugs using the issue tracker at github:
<https://github.com/bitcoin/bitcoin/issues>
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 0.8.4 your blockchain files will be re-indexed, which will take
anywhere from 30 minutes to several hours, depending on the speed of
your machine.
0.8.4 Release notes
===================
Security issues
---------------
An attacker could send a series of messages that resulted in
an integer division-by-zero error in the Bloom Filter handling
code, causing the Bitcoin-Qt or bitcoind process to crash.
Bloom filters were introduced with version 0.8, so versions 0.8.0
through 0.8.3 are vulnerable to this critical denial-of-service attack.
A constant-time algorithm is now used to check RPC password
guess attempts; fixes <https://github.com/bitcoin/bitcoin/issues/2838>
(CVE-2013-4165)
Implement a better fix for the fill-memory-with-orphan-transactions
attack that was fixed in 0.8.3. See
<https://bitslog.wordpress.com/2013/07/18/buggy-cve-2013-4627-patch-open-new-vectors-of-attack/>
for a description of the weaknesses of the previous fix.
(CVE-2013-4627)
Bugs fixed
----------
Fix multi-block reorg transaction resurrection.
Fix non-standard disconnected transactions causing mempool orphans.
This bug could cause nodes running with the -debug flag to crash.
OSX: use `FD_FULLSYNC` with LevelDB, which will (hopefully!)
prevent the database corruption issues many people have
experienced on OSX.
Linux: clicking on bitcoin: links was broken if you were using
a Gnome-based desktop.
Fix a hang-at-shutdown bug that only affects users that compile
their own version of Bitcoin against Boost versions 1.50-1.52.
Other changes
-------------
Checkpoint at block 250,000 to speed up initial block downloads
and make the progress indicator when downloading more accurate.
Thanks to everybody who contributed to the 0.8.4 releases!
----------------------------------------------------------
* Pieter Wuille
* Warren Togami
* Patrick Strateman
* pakt
* Gregory Maxwell
* Sergio Demian Lerner
* grayleonard
* Cory Fields
* Matt Corallo
* Gavin Andresen