Below are the build notes for v2019R1 Fix Branch / Minor Releases for Qoppa’s PDF Library jPDFPreflight.
Version v2018R1.01 – Dec 11 2019
JPDF-1426 – PDF/A Validation: Getting “Length field of stream dictionary” error when the PDF contains an attachment
Version v2018R1.00 – June 14 2019
Main Release. See v2019R1 Main Release Notes.