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Description of problem:
RHV is going to be deprecated v3 API in a year. v4 API is already available from 4.0 (Aug 2016) - the agent should move to the new API.
Personally, I'd create fence-rhvm4 agent.

@Yaniv:

Would it be possible to have API that will last (almost) forever? I have no issues with building fence_rhevm4 but it will be harder to add a new packages to RHEL7 in next years.

(In reply to Marek Grac from comment #2)
> @Yaniv:
> 
> Would it be possible to have API that will last (almost) forever? I have no
> issues with building fence_rhevm4 but it will be harder to add a new
> packages to RHEL7 in next years.

For the lifecycle of RHV 4.x, the v4 API will be supported. That's several years.

*** Bug 1402860 has been marked as a duplicate of this bug. ***

(In reply to Yaniv Kaul from comment #3)
Will it be backwards compatible with v3 as mentioned in the following bz?
https://bugzilla.redhat.com/show_bug.cgi?id=1422499#c0

(In reply to Oyvind Albrigtsen from comment #5)
> (In reply to Yaniv Kaul from comment #3)
> Will it be backwards compatible with v3 as mentioned in the following bz?
> https://bugzilla.redhat.com/show_bug.cgi?id=1422499#c0

No, v4 is completely different.

Bumping to 7.6.

https://github.com/ClusterLabs/fence-agents/pull/269

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2019:2037