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https://issues.apache.org/jira/browse/PHOENIX-5607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16992065#comment-16992065
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Lars Hofhansl commented on PHOENIX-5607:
----------------------------------------

Another idea: Once we have clear metadata APIs (and absolutely not direct 
reading of any system tables), we can test backwards compatibility via API 
tests, too, which would greatly simplify the backwards compatibility testing.


> Client-server backward compatibility tests 
> -------------------------------------------
>
>                 Key: PHOENIX-5607
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5607
>             Project: Phoenix
>          Issue Type: Test
>    Affects Versions: 4.15.0
>            Reporter: Lars Hofhansl
>            Priority: Blocker
>             Fix For: 4.16.0
>
>
> Filing this as a blocker for 4.16.0.
> As we've seen with the various failed attempts to release 4.15.0 Phoenix' 
> backwards compatibility story is weak, and lacks tests - in fact there're no 
> tests.
> We should not allow to ship 4.16.0 without improving that and without tests.
> [~ckulkarni], [~gjacoby] , FYI, what we discussed.



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