The libraries target netstandard2.1 and use only JsonDocument, Utf8JsonWriter and JsonSerializer converters, all present in 8.0.x. 8.0.5 is the patched 8.0 line. A consumer pinning [8.0.5,) now restores 8.0.5.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>