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Reconcile upgrade notes in master (#2103) 

inspired by And fixes #2102
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Jan Høydahl 2020-12-02 23:28:02 +01:00 committed by GitHub
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solr/solr-ref-guide/src/solr-upgrade-notes.adoc
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@ -24,7 +24,7 @@ These notes highlight the biggest changes that may impact the largest number of
implementations. It is not a comprehensive list of all changes to Solr in any release. implementations. It is not a comprehensive list of all changes to Solr in any release.
When planning your Solr upgrade, consider the customizations you have made to When planning your Solr upgrade, consider the customizations you have made to
your system and review the {solr-javadocs}/changes//Changes.html[`CHANGES.txt`] your system and review the {solr-javadocs}/changes/Changes.html[`CHANGES.txt`]
file found in your Solr package. That file includes all the changes and updates file found in your Solr package. That file includes all the changes and updates
that may effect your existing implementation. that may effect your existing implementation.
@ -38,12 +38,20 @@ Detailed steps for upgrading a Solr cluster are in the section <<upgrading-a-sol
If you are upgrading from 7.x, see the section <<Upgrading from 7.x Releases>> below. If you are upgrading from 7.x, see the section <<Upgrading from 7.x Releases>> below.
=== Solr 8.8
*Removed Contribs*
* The search results clustering contrib has been removed from 8.x Solr line due to lack
of Java 1.8 compatibility in the dependency providing on-line clustering of search results.
See SOLR-14981 for more details.
=== Solr 8.7 === Solr 8.7
See the https://cwiki.apache.org/confluence/display/SOLR/ReleaseNote87[8.7 Release Notes^] See the https://cwiki.apache.org/confluence/display/SOLR/ReleaseNote87[8.7 Release Notes^]
for an overview of the main new features of Solr 8.7. for an overview of the main new features of Solr 8.7.
When upgrading to 8.6.x users should be aware of the following major changes from 8.6. When upgrading to 8.7.x users should be aware of the following major changes from 8.6.
*Autoscaling* *Autoscaling*
@ -128,9 +136,8 @@ If your cluster is running 8.6.0 and *not using an explicit autoscaling policy*,
+ +
Replace `localhost:8983` with your Solr endpoint. Replace `localhost:8983` with your Solr endpoint.
+ +
``` [source,text]
curl -X POST -H 'Content-type:application/json' -d '{set-cluster-policy : [], set-cluster-preferences : []}' http://localhost:8983/api/cluster/autoscaling curl -X POST -H 'Content-type:application/json' -d '{set-cluster-policy : [], set-cluster-preferences : []}' http://localhost:8983/api/cluster/autoscaling
```
+ +
This information is only relevant for users upgrading from 8.6.0. If upgrading from an earlier version to 8.6.1+, this warning can be ignored. This information is only relevant for users upgrading from 8.6.0. If upgrading from an earlier version to 8.6.1+, this warning can be ignored.
@ -160,7 +167,9 @@ More information about this new feature is available in the section <<common-que
*Autoscaling* *Autoscaling*
* Solr now includes a default autoscaling policy. * **NOTE: The default autoscaling policy has been removed as of 8.6.1**
+
Solr now includes a default autoscaling policy.
This policy can be overridden with your custom rules or by specifying an empty policy to replace the default. This policy can be overridden with your custom rules or by specifying an empty policy to replace the default.
* The ComputePlan action now supports a collection selector to identify collections based on collection properties to determine which collections should be operated on. * The ComputePlan action now supports a collection selector to identify collections based on collection properties to determine which collections should be operated on.
@ -343,6 +352,7 @@ The system is currently considered experimental, so use with caution. It must
be enabled with a system parameter passed at start up before it can be used. be enabled with a system parameter passed at start up before it can be used.
For details, please see the section <<package-manager.adoc#package-manager,Package Management>>. For details, please see the section <<package-manager.adoc#package-manager,Package Management>>.
With this feature Solr's Blob Store functionality is now deprecated and will likely be removed in 9.0.
*Security* *Security*
@ -573,7 +583,7 @@ If you run in SolrCloud mode, you must be on Solr version 7.3 or higher in order
== Upgrading from Pre-7.x Versions == Upgrading from Pre-7.x Versions
Users upgrading from versions of Solr prior to 7.x are strongly encouraged to consult {solr-javadocs}/changes//Changes.html[`CHANGES.txt`] for the details of _all_ changes since the version they are upgrading from. Users upgrading from versions of Solr prior to 7.x are strongly encouraged to consult {solr-javadocs}/changes/Changes.html[`CHANGES.txt`] for the details of _all_ changes since the version they are upgrading from.
The upgrade from Solr 6.x to Solr 7.0 introduced several *major* changes that you should be aware of before upgrading. Please do a thorough review of the section <<major-changes-in-solr-7.adoc#major-changes-in-solr-7,Major Changes in Solr 7>> before starting your upgrade. The upgrade from Solr 6.x to Solr 7.0 introduced several *major* changes that you should be aware of before upgrading. Please do a thorough review of the section <<major-changes-in-solr-7.adoc#major-changes-in-solr-7,Major Changes in Solr 7>> before starting your upgrade.