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https://issues.apache.org/jira/browse/LUCENE-2073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12779078#action_12779078
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Robert Muir commented on LUCENE-2073:
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guys I would like to commit this file soon, let me know if you see any issues
with it.
I think this additional verbage i added about "basic latin" is safe, the only
properties that have changed even up to unicode 5.1 are minor changes to
bidirectional properties.
This only affects rendering/layout.
> Document issues involved in building your index with one jdk version and then
> searching/updating with another
> -------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-2073
> URL: https://issues.apache.org/jira/browse/LUCENE-2073
> Project: Lucene - Java
> Issue Type: Task
> Reporter: Mark Miller
> Attachments: LUCENE-2073.patch, LUCENE-2073.patch, LUCENE-2073.patch,
> LUCENE-2073.patch, stdAnalyzerTest.java
>
>
> I think this needs to go in something of a permenant spot - this isn't a one
> time release type issues - its going to present over multiple release.
> {quote}
> If there is nothing we can do here, then we just have to do the best we can -
> such as a prominent notice alerting that if you transition JVM's between
> building and searching the index and you are using or doing X, things will
> break.
> We should put this in a spot that is always pretty visible - perhaps even a
> new readme file titlted something like IndexBackwardCompatibility or
> something, to which we can add other tips and gotchyas as they come up. Or
> MaintainingIndicesAcrossVersions, or
> FancyWhateverGetsYourAttentionAboutUpgradingStuff. Or a permanent
> entry/sticky entry at the top of Changes.
> {quote}
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