v1.4.1

• Add support for automatic backup.

v1.4.0

• Add support for the boolean type.
• Add support for the count operation.
• Fix bugs.

v1.3.0

• $correlation can now be used in constraints.
• Add support for highlight.
• Add support for span.
• Add a progress bar for build operation.
• Add support for Windows platform.
• Fix bugs.

v1.2.1

• Fix bugs.

v.1.2.0

• Use static link library.
• Add support for combined constraints on a single field.
• Optimize the memory usage required by the build operation.
• Fix some bugs.

v1.1.0

• Use multi-threaded algorithms to speed up the build operation.
• Fix some bugs.

v1.0.0

v1.0.0