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Move upgrade notes from CHANGES.txt to the Ref Guide.

This commit is contained in:
Andrzej Bialecki 2020-10-22 17:22:29 +02:00
parent 43c087f91b
commit c680a6e061
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8
solr/solr-ref-guide/src/solr-upgrade-notes.adoc
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@ -53,7 +53,13 @@ If you are already on 8.6.1 or higher, you can ignore these instructions.
*Deprecations*
* The autoscaling framework is now formally deprecated and will be removed in Solr 9.0.
The Solr community is working on a plugin to replace this functionality, with the goal for it to be ready by the time 9.0 is released.
The Solr community is working on pluggable API to replace this functionality, with the goal for it to be ready by the time 9.0 is released. Deprecations include: autoscaling policy, triggers, `withCollection` support, simulation framework, autoscaling suggestions tab in the UI, `autoAddReplicas` and `UTILIZENODE` command.
* Similarly, rule-based replica placement strategy has been deprecated and will be replaced
in Solr 9.0 by APIs for replica placement and cluster events, with plugin-based implementations.
* Support for detecting spinning disks has been removed in LUCENE-9576. Corresponding
`spins` metrics in Solr still exist but now they always return `false` and will be removed in Solr 9.0.
*Legacy Scaling (non-SolrCloud) Terminology Updated*