afd25ced_File_Format_Changes_in_SQLite__cription_Of_File_Format_Change
[Version Change] 1.0.32 to 2.0.0 [Approx. Date] 2001-Sep-20
Version 1.0.X of SQLite used the GDBM library as its backend interface to the disk. Beginning in version 2.0.0, GDBM was replaced by a custom B-Tree library written especially for SQLite. The new B-Tree backend is twice as fast as GDBM, supports atomic commits and rollback, and stores an entire database in a single disk file instead using a separate file for each table as GDBM does. The two file formats are not even remotely similar.
File Format Changes in SQLite