Hi Francisco, Look here: https://solr.apache.org/guide/solr/latest/upgrade-notes/solr-upgrade-notes.html
But note the changes before starting: https://solr.apache.org/guide/solr/latest/upgrade-notes/major-changes-in-solr-9.html Best Regards Robi On Fri, Jul 18, 2025 at 5:52 PM AlvaradoAlonso, Francisco <francisco.alvaradoalo...@gulfstream.com.invalid> wrote: > Hi Everyone, > > Does anyone have the detailed steps to upgrade Solr 8.x to 9.x in a > On-Prem clustered environment? If possible, with the most obvious > steps/tasks please. > > > Thank you in Advance, > > > Regards, > > Francisco Javier Alvarado Alonso > JAVA Apps Dev Sr - BT West > Gulfstream Aerospace > Mexicali, Baja California 21376 > Work Cellphone: +52 686 221 8824 > > This e-mail message, including all attachments, is for the sole use of the > intended recipient(s) and may contain Personal Information under General > Dynamics policy CP 07-105 and/or legally privileged and confidential > information. Any Personal Information can be accessed only by authorized > personnel of General Dynamics and its approved service providers and may be > used only as permitted by General Dynamics and its policies. Contractual > restrictions apply to third parties. If you are not an intended recipient, > you are hereby notified that you have either received this message in error > or through interception, and that any review, use, distribution, copying or > disclosure of this message or its attachments is strictly prohibited and is > subject to criminal and civil penalties. All personal messages express > solely the sender's views and not those of Gulfstream Aerospace > Corporation. If you received this message in error, please contact the > sender by reply e-mail and destroy all copies of the original message. >
