CCS version support information #1359
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charlotte-hoblik
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Pull Request Overview
This PR fixes the CCS version support information by updating the compatibility table to reflect accurate support indicators.
- Corrected the support indicator for version 8.18 in the compatibility table.
Comments suppressed due to low confidence (1)
solutions/search/cross-cluster-search.md:1120
- Verify that the change to the 'No' indicator for the local cluster version in the 8.18 row is intentional and aligns with the documented compatibility specifications. If local cluster support exists for 8.18, update the icon accordingly.
| 8.18 |  |  |  |  |
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The CCS support matrix after correction: |
| @@ -1117,7 +1117,7 @@ $$$ccs-version-compatibility$$$ | |||
| | Local cluster version | 7.17 | 8.0 – 8.17 | 8.18 | 9.0 | | |||
| | 7.17 |  |  |  |  | | |||
| | 8.0 – 8.17 |  |  |  |  | | |||
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I think this 8.0-8.17 "Yes" is also wrong. We only support back to 7.17 from 8.0, but not 8.1, following the "previous minor" rule. This is shown correctly on this page: https://www.elastic.co/guide/en/elasticsearch/reference/8.18/modules-cross-cluster-search.html#ccs-supported-configurations
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Thanks for the review!
You’re right that based on the “previous minor” rule, only 8.0 from the 8.0–8.17 range supports querying 7.17. The table here (compared to the other one) uses a simplified format, where support is marked if any version in the range supports a pairing.
That said, I see how this could be misleading. I’m happy to adjust the structure—for example, breaking out 8.0 into its own row.
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I’ve made the changes we discussed:
• 8.0 now has its own row
• 8.17 is split into a separate column for clarity
Here’s the updated version. Let me know what you think! 
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I see this has already merged, but isn't the intersection of 8.1-8.17 and 8.0-8.16 still incorrect? It indicates a local 8.17 can CCS against a remote 8.0.
Don't we need to list every minor version in the headers as we did in 8.x docs for complete accuracy?
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@rseldner shouldn't this page be analogous to the 8.0 version?
leemthompo
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their stale review
Michael pointed out this still wasn't accurate :)
This PR is fixing CCS version support information.
Based on #1350