PDFKit create document version is 1.3 can we create an PDF 1.7 document?

Working with PDFkit on MacOS 12.6 and created a new PDFDocument instance. checking the HEX code of this PDF document and notice this, At the beginning there is "%PDF-1.3%". Is it possible to create a new PDFDocument in PDF Spec 1.7 version instead? if not possible with current version, any plan in the future? is there a plan to have equivalence of PDFKit in SWIFTUI world around the corner? thanks

PDFKit create document version is 1.3 can we create an PDF 1.7 document?
 
 
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