As far as I understand JWSDP 1.3 is BP 1.0 compliant. And JWSDP 1.4 is BP 1.1 compliant. Since - SCDJWS to be released has BP 1.0 in objectives - JWSDP 1.3 should be used. But on the other side JWSDP 1.3 has some old version of SAAJ API, as well no Digital Signaure, while 1.4 covers XML signature.
Exam 1Z0-810: Upgrade to Java SE 8 Programmer Study Guide and Quiz Exam 1Z0-817: Upgrade OCP Java 6, 7 and 8 to Java SE 11 Developer Study Guide and Quiz