WordPress Security Vulnerability is now patched
Written by wpengine on December 29, 2010
Less than an hour ago WordPress released a security patch, bringing the current stable version to v3.0.4.
This has been applied to all our customers who are on the v3.x track. Safe!
(For those of you still on v2.9.2, you should upgrade! Contact us for details; we can help.)

[...] those of you blogging upon WordPress only hosting sites like Page.ly, PressHarbor and WPEngine, your sites should automatically be updated to the latest version (note: VaultPress Premium users [...]
Are new sites starting with 3.0.4 by default?
[...] those of you blogging upon WordPress only hosting sites like Page.ly, PressHarbor and WPEngine, your sites should automatically be updated to the latest version (note: VaultPress Premium users [...]