Here's a test build if you'd like to help test before 0.3.9 is released.
(or if you'd rather get upgrading out of the way now instead of waiting)
Downloads: (binaries only)
http://www.bitcoin.org/download/bitcoin-0.3.9.rc1-win32.zip
(http://www.bitcoin.org/download/bitcoin-0.3.9.rc1-linux.tar.gz)
SHA1 a36ea00cce27b4b083755df73a3d1e5e5729884e bitcoin-0.3.9.rc1-win32.zip
SHA1 bbb333b0ea57302740ad1bb9948520d00f884f9d bitcoin-0.3.9.rc1-linux.tar.gz
Edit:
Linux please test rc2 instead. This adds a -4way switch for tcatm's 4-way SSE2. This will only be for Linux:
http://www.bitcoin.org/download/bitcoin-0.3.9.rc2-linux.tar.gz
SHA1 47d9998f7d15fe81234a5c89a542da9d0664df40 bitcoin-0.3.9.rc2-linux.tar.gz
Please report back your results
http://bitcointalk.org/index.php?topic=820
Version 0.3.9 rc1, please test
What's new? Do we have an official changelog yet?
Quote from: lachesis on August 13, 2010, 08:49:14 PM (https://bitcointalk.org/index.php?topic=806.msg9100#msg9100)
What's new? Do we have an official changelog yet?
Unfortunately we don't have an official changelog yet (except for the SVN revision descriptions).
Here is my unofficial changelog:
- fix: makefile.osx
- change: enable SSE2 in 64 bit builds
- change: connection rules
- always make 8 outbound connections
- only one connection per a.b.*.* range
- add: switch "-maxconnections=#" (discussed here (http://bitcointalk.org/index.php?topic=766.0))
- change: JSON-RPC API prints floats with 8 decimal places
- change: "bitcoind help <command>" instead of "bitcoind <command> -?" (based on a patch by jgarzik (http://bitcointalk.org/index.php?topic=637.0))
- add: JSON-RPC "gethashespersec" (based on a patch by lachesis (http://bitcointalk.org/index.php?topic=609.0))
- add: "version" and "hashespersec" fields in JSON-RPC "getinfo"
- fix: "-datadir=<path>" with relative path (bug described here (http://bitcointalk.org/index.php?topic=601.0))
- change: autostart disabled by default except on Windows (requested here (http://bitcointalk.org/index.php?topic=720.0))
- fix: occasional "vector iterator not dereferencable" assertion when compiled with msvc
- fix: readlink compile warning on Linux build
- fix: BSD detection (bug described here (http://bitcointalk.org/index.php?topic=790.0))
- add: "-paytxfee=#" switch (explained here (http://bitcointalk.org/index.php?topic=795.0))
Please tell me if you know of any other forum threads discussing the bugs/changes so I can add them to the list.
Quote from: Tilka on August 15, 2010, 02:11:20 PM (https://bitcointalk.org/index.php?topic=806.msg9439#msg9439)
Unfortunately we don't have an official changelog yet (except for the SVN revision descriptions).
...
Please tell me if you know of any other forum threads discussing the bugs/changes so I can add them to the list.
That's a great changelog. I sent you ฿2 for your trouble. 
Don't wanna take credit where it's not due 
the hashes/sec patch was from lachesis, and the extended-help might have been based on my idea, but the code was somewhat different.
Quote from: jgarzik on August 15, 2010, 05:46:27 PM (https://bitcointalk.org/index.php?topic=806.msg9467#msg9467)
the extended-help might have been based on my idea, but the code was somewhat different.
The idea was the main part. When you posted your patch, I realized it should have been done that way instead of "-?". I always had reservations about "-?" because it intrudes on the possible parameter values, and the help response is based on the version of the caller instead of the server.