The library uses the following versioning scheme for the assemblies and the NuGet packages.
<major>.<minor>.<patch>

Assembly Version

major  - increases when there are breaking changes that require app code updates.
minor  - increases when there are breaking changes that require only app code recompilication.
patch  - typically do not change.

Assemblies in the package are signed with a published key, so they are strongly named. major and minor version numbers are increased as shown above. When a new release does not have any breaking changes, assembly version remains the same. This enables the application to do an in-place upgrade without recompiling or updating the application code.

Assembly File Version

Follows the NuGet package version.

NuGet Package Version

Follows the same rules in Assembly Version to increase major and minor numbers. If major and minor are not increased, patch is incremented in each release; otherwise, patch is reset to 0.