Can I keep using EOS(End of Sales) version of LoadBalancer (NetScaler VPX)?

Yes. Until EOL(End of Life), we will provide support for inquiries regarding technical contents and usage of LoadBalancer(NetScaler VPX).

However, after EOL(End of Life), we will not provide support other than support for failure of virtual server infrastructure and Customer Portal / API.  It is also important to note that charges will continue for the same amount and will not guarantee operation after future changes to the underlying version.

Information on lifecycle policies can be found below.

Service Descriptions - Load Balancer(NetScaler VPX) - Lifecycle Policy