Software Upgrade Path for NFX250 Devices

Table 1 provides details of the software upgrade path for NFX250 devices.

Table 1: NFX250 Software Upgrade Path
From Junos OS Release	Target / Intermediate Junos OS Release	Recommended Junos OS Release
15.1X53-D47.4	15.1X53-D470.6	18.1R1.9 (intermediate) -> 18.4R1.8
15.1X53-D47.4	15.1X53-D497.1	18.1R1.9 (intermediate) -> 18.4R1.8
15.1X53-D47.4	18.1R1.9	18.4R1.8
15.1X53-D470.6	15.1X53-D472	18.1R1.9 (intermediate) -> 18.4R1.8
15.1X53-D470.6	18.1R1.9	18.4R1.8
15.1X53-D472	15.1X53-D473.1	18.1R1.9 (intermediate) -> 18.4R1.8
15.1X53-D472	18.1R1.9	18.4R1.8
15.1X53-D473.1	18.1R1.9	18.4R1.8
15.1X53-D497.1	18.1R1.9	18.4R1.8
17.3R1.10	18.1R1.9	18.4R1.8
17.4R3.4	18.1R1.9	18.4R1.8
18.1R1.9	-	18.4R1.8
18.2R1.9	-	18.4R1.8
18.3R1.9	-	18.4R1.8