WC 2.3 (Handsome Hippo) Release Candidate 1 has today been tagged. If all goes well, the final release will be tuesday. You can compare the changes since beta 3 here.
If you have not tested your theme or plugin yet you have a week to do so if you want to beat the release of the new version.
You can download the release candidate here: https://github.com/woothemes/woocommerce/archive/2.3.0-RC1.zip
If you are testing plugins and they are not showing up, ensure you name the plugin folder ‘woocommerce’ (removing the -2.3.0-RC1) when moving it into your plugins directory.
Thanks to everyone who has contributed to this release so far!