You can learn about what's new in this release at the README
<http://www.mozilla.org/releases/mozilla1.8a3/README.html> and you can
see a "rough changelog" covering the 400+ bugs fixed in this alpha 3
cycle at <http://www.mozilla.org/releases/mozilla1.8a3/changelog.html>
Builds are available for:
Windows:
<http://ftp.mozilla.org/pub/mozilla.org/mozilla/releases/mozilla1.8a3/mozilla-win32-1.8a3-installer.exe>
Mac:
<http://ftp.mozilla.org/pub/mozilla.org/mozilla/releases/mozilla1.8a3/mozilla-mac-1.8a3.dmg.gz>
Linux:
<http://ftp.mozilla.org/pub/mozilla.org/mozilla/releases/mozilla1.8a3/mozilla-i686-pc-linux-gnu-1.8a3-installer.tar.gz>
--Asa