This is a sub-release of SDML 3.0 (click on "3.0" in the release browser for details of new features in this release). This sub-release contains most of the features of 2.6, except for: a) symbol searching A new "reset caches" option is provided in the menus at the top of the SDML launcher and simulation browsers. This facility can be used to remove as much cached information as possible from the SDML image to reduce it in size. This cached information includes the compiled versions of rules, so it can also be used to force recompilation. The virtual memory implementation is still not fully complete. Using this sub-release may cause problems if primitives such as "generatedInstance", or those for choices or user requests, are used on a lagged database.