API compatibility and Removal of deprecated API Features ======================================================== PDFlib 10 removes all API methods and options which have been designated as "deprecated" in PDFlib 9 or earlier. These methods and options must be replaced in application code before switching to PDFlib 10. The "PDFlib Migration Guide" contains a list of all affected methods and options along with their newer replacements. The Migration Guide also explains how to identify deprecated features in your application with PDFlib 9.3 (or above) before migrating to PDFlib 10. It is strongly recommended to review the Migration Guide and avoid the use of deprecated features in application code to ensure forward compatibility. PPS, PPS API, Block Plugin and Acrobat versions =============================================== PPS Block Acrobat Acrobat PPS API Plugin Windows macOS --------------------------------------------------------------------------- 9.3.0 10 5.30 8,9,X,XI,DC 2020 DC 2020 9.3.1 10 5.31 8,9,X,XI,DC 2021 (32/64-bit) DC 2021 9.4.0 10 5.40 8,9,X,XI,DC 2021 (32/64-bit) DC 2021 10.0.0 11 6.0 8,9,X,XI,DC 2021 (32/64-bit) DC 2021 10.0.1 11 6.1 8,9,X,XI,DC 2021 (32/64-bit) DC 2021 PDFlib version numbers and .NET version numbers =============================================== The .NET binding uses a distinct versioning scheme which differs from the PDFlib major/minor version numbers. The following table provides the mapping: PDFlib .NET ---------------- 9.3.0px 3.0.x 9.3.1px 3.1.x 9.4.0px 3.4.x 10.0.0px 4.0.x 10.0.1px 4.1.x