see CHANGELOG

- upgraded SQLite to version 3.7.15.1 (2012-12-19)
- fixed SQLite affectedRows reporting and added tests
- added SQLite::Utility::isThreadSafe() function
- added SQLite::Utility::setThreadMode(int mode) function
- fixed GH #41: Buffer::resize crash

Data/SQLite/include/Poco/Data/SQLite/SQLite.h

@@ -80,4 +80,16 @@
 	#endif
 #endif
 
+
+//
+// Thread safety mode defaults to "serialized".
+// See http://www.sqlite.org/threadsafe.html for details.
+// Threading mode significantly affects performance 
+// (see TestSuite::benchmarkThreadModesTiming)
+//
+#ifndef SQLITE_THREADSAFE
+	#define SQLITE_THREADSAFE 1
+#endif
+
+
 #endif // SQLite_SQLite_INCLUDED

Data/SQLite/include/Poco/Data/SQLite/Utility.h

@@ -63,6 +63,10 @@ public:
 	static const std::string SQLITE_TIME_FORMAT;
 	typedef std::map<std::string, MetaColumn::ColumnDataType> TypeMap;
 
+	static const int THREAD_MODE_SINGLE;
+	static const int THREAD_MODE_MULTI;
+	static const int THREAD_MODE_SERIAL;
+
 	Utility();
 		/// Maps SQLite column declared types to Poco::Data types through
 		/// static TypeMap member.
@@ -92,6 +96,14 @@ public:
 		/// 
 		/// Returns true if succesful
 
+	static bool isThreadSafe();
+		/// Returns true if SQLite was compiled in thread or serialized mode.
+		/// See http://www.sqlite.org/c3ref/threadsafe.html for details.
+
+	static bool setThreadMode(int mode);
+		/// Sets the threading mode to single, multi or serialized.
+		/// See http://www.sqlite.org/threadsafe.html for details.
+
 private:
 	static TypeMap _types;
 	Poco::FastMutex _mutex;