Version 6.9.7 of the Local Data Manager (LDM) was made available on February 1, 2011. This version is recommended for all users. The latest update can be downloaded at https://www.unidata.ucar.edu/downloads/ldm/.
For a list of changes between the 6.9.0 version and the current version, see the Change Log.
Note that the LDM installer was upgraded for the 6.9 release, and has a slightly different layout and procedure. See the Installation Instructions for additional details.