What previous versions of Vijeo Designer will Vijeo Designer support?

Issue
Unable to open a Vijeo Designer application made in a very old verison.

Product Line
Vijeo Designer

Resolution
In general, the rule is that Vijeo Designer Vx.y will support four previous minor versions.

For example, V6.2 can open applications created with:
.. Vijeo Designer V6.1 (and associated patches)
.. Vijeo Designer V6.0 (and associated patches)
.. Vijeo Designer V5.1 (and associated patches)
.. Vijeo Designer V5.0 (and associated patches)

Vijeo Designer V5.1 can open applications created with:
.. Vijeo Designer V5.0 (and associated patches)
.. Vijeo Designer V4.7 (and associated patches)
.. Vijeo Designer V4.6 (and associated patches)
.. Vijeo Designer V4.5 (and associated patches)

Vijeo Designer V4.7 can open applications created with:
.. Vijeo Designer V4.6 (and associated patches)
.. Vijeo Designer V4.5 (and associated patches)
.. Vijeo Designer V4.4 (and associated patches)

Vijeo Designer V4.4 can open applications created with:
.. Vijeo Designer V4.3 (and associated patches)
.. Vijeo Designer V4.2 (and associated patches)