SANDev is an open source build environment for applications written using Structs and Nodes Development (SAND). SANDev provides - A dependency-tracking modular 2-stage build (code generation followed by the standard compile/package/doc). - Editing tools: - Configuration editor allows definition of global settings, bootstrap data, node communications and parameters. - UI editor allows definition of screens, forms, links, actions, and value displays - TestScript editor allows definition of test configurations and module tests. - Default templates for web interface look and feel which can be easily customized or replaced. SANDev 1.3 includes the following updates and changes: - Support for extended query operations using "EXOP" SandAttrVals. - multiheap support for the TaskHeap application - A new fieldlayout struct declaration for basic form layout - Data pagination links and totals if requested in the query - Support for serialization using Google Protocol Buffers - Other minor bug fixes and improvements. We welcome your feedback and participation. For more information, see the project homepage at http://sandev.org