New features and enhancements in SNS 4.3.16 LTSB
Long-Term Support Branch (LTSB)
SNS version 4.3 is labeled “LTSB” so that it can be considered a version that will be stable over a long term, and will be supported for at least 12 months.
Refer to Compatibility to find out which products are compatible. For more information on the LTSB label, refer to the Network Security & Tools Product lifeycle document.