Hi degel3030,
Jonas is correct. Dynamic VPN is fully supported from 15.1X49-D60.
From the release notes :-
Dynamic VPN remote access for Secure Pulse clients to SRX300, SRX320, SRX340, SRX345, and SRX550M devices—Starting with Junos OS Release 15.1X49-D60, dynamic VPN simplifies remote access by enabling Pulse Secure clients to establish IPsec VPN tunnels to SRX services gateways without having to manually configure VPN settings on their PCs or laptops. User authentication is supported through a RADIUS server or a local IP address pool.
The same can be found in the release notes under "VPNs" :-
Regards,
Sahil Sharma
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