Upgrading from 3.5.3

[Matthew Kettlewell <matt@xxxxxxxxxxxxxx>]

Hello -

We have several

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luster clusters, with both clients and servers running 3.5.3.

Each cluster can have several hundred clients

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( so client updates will be particularly difficult )

We are looking at potential upgrade paths

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that would minimize our impact,

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and give us some of the benefits of more recent versions
( most notably we've seen self-heal issues when re-adding nodes )

Is the 3.5.3 client backwards compatible with future versions, and

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if so

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how far ahead?
( ie, will the 3.5.3 client work with 3.7.x server?

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3.8? 3.9 ?)

Are there any best practices guides out there or recommendations/suggestions for

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upgrading from 3.5.3 to a more recent version?

​Any guidance on this matter would be greatly appreciated.

Matt

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