updating MXNet version to 1.6.0 in base.h for C APIs

[access2rohit]

Description

updating MXNet version to 1.6.0 in base.h for C APIs
#16904

Checklist

Essentials

Please feel free to remove inapplicable items for your PR.

• Changes are complete (i.e. I finished coding on this PR)

[access2rohit]

@lanking520

[lanking520]

This is a key problem with the publish, we should bump it once we make the release

[access2rohit]

This is a key problem with the publish, we should bump it once we make the release

yes

[access2rohit]

@ptrendx

[samskalicky]

@access2rohit shouldnt we be changing master to 1.7?

[access2rohit]

?

@samskalicky Sure! I think we should first bump master to 1.6 and then again to 1.7. Does that makes sense ?

[ptrendx]

@access2rohit Since the 1.6.x branch is already diverged from master, there is no need to do this 1.6 step I think - we should just go directly to 1.7 (which I believe requires changes in more places).

[access2rohit]

@access2rohit Since the 1.6.x branch is already diverged from master, there is no need to do this 1.6 step I think - we should just go directly to 1.7 (which I believe requires changes in more places).

Yes it requires changes in more places. IMO we should follow proper progression by moving from 1.5->1.6->1.7 to keep the change history in master clean and consistent.
@ptrendx do you agree ?

[ptrendx]

Sure, I'm fine with this change first.