Sedna is a free native XML database which provides a full range of core database services - persistent storage, ACID transactions, security, indices, hot backup. Flexible XML processing facilities include W3C XQuery implementation, tight integration of XQuery with full-text search facilities and a node-level update language.

Important note:
Databases created with previous versions of Sedna will not work properly with Sedna 3.5. Please, use Sedna import/export utility to migrate your data to Sedna 3.5 (see Sedna Administration Guide, section 2.5).