https://opendatakit.org/use/getting-started-rev126/ -- is a Getting
Started Guide that walks through using and modifying a form, and
highlights many of the capabilities of the 2.0 tools, including
bi-directional sync with the server.
The 2.0 tools are in Alpha or Beta status. We are referring to the
combined set of tools as the "rev 126" software. To understand what we
mean by the Alpha and Beta designations, see
http://opendatakit.org/use/2_0_tools/#Release_Designations
The rev 126 software works with ODK Aggregate v1.4.5.
Known limitations of this software are described here:
http://opendatakit.org/use/2_0_tools/#Limitations
The change log for the 2.0 tools is here:
https://code.google.com/p/opendatakit/wiki/ToolsSuiteChangeLog