Serialization File Format

Version 6 (v6.0.0)

Notes:

• Versions 2 to 5 are readable as a one-time conversion but always written back as version 6.
• Int32s are written as positive values using 7-bit encoding. This means that the maximum value is 2,147,483,647, apart from Int32s written by the IntFormatterKeySerializer which can’t make the assumption that the value is always positive. For these, values are written using zig-zag encoding.
• New in version 6 is the storage of object type and scoring metadata information for a document in the index, including an internal object type id it was extracted for, freshness date and scoring magnitude, if applicable.