Dell NetWorker 19.9 Administration Guide

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Backward Compatibility

With NetWorker versions prior to 19.3, the save sets cannot be configured for retention time beyond the year 2038. When you try to set a date beyond the year 2038, NetWorker returns an invalid retention time and the corresponding operation fails. From NetWorker 19.3 onwards, you can set a retention time beyond the year 2038, up to 136 years from the current date of execution for the respective action.

Refer to the following table for backward compatibility information of older clients:

Table 1. Backward Compatibility
Backward Compatibility	Pre-19.3 server + >2038	Pre-19.3 server + forever	19.3 server + >2038	19.3 server + forever
Pre-19.3 x86 client	Not Supported	Supported(old forever value)	Not Supported (2 and 3)	Supported (new forever value)
Pre-19.3 x64 client	Not Supported	Supported(old forever value)	Not Supported (3)	Supported (new forever value)
19.3 x86 client	Not Supported (1)	Not Supported (1)	Not Supported (2)	Supported (new forever value)
19.3 x64 client	Not Supported (1)	Not Supported (1)	Supported	Supported (new forever value)

A NetWorker 19.9 client communicating with a pre-NetWorker 19.9 server is not an officially supported configuration.
Backup actions are not supported due to 32 bit operating system limitation. However, clone actions are supported.
Backup actions are not supported. However, clone actions are supported.
NOTE:Old forever value is 19th Jan 2038 and new forever value is ~292 billion years.