Elasticsearch upgrade to 8.11.4

Elasticsearch upgrade steps

These are the cross functional steps that are needed when Elastic releases a new version.

https://www.elastic.co/guide/en/elasticsearch/reference/current/es-release-notes.html

Breaking changes

There are no notable breaking changes between 8.6.2 and 8.11.4 (ref)

Infrastructure

• Open an Infrastructure Change Management Request following the steps outlined in the Elasticsearch runbook. Use the Elasticsearch upgrade issue template.

Development

• Upgrade the version of Elasticsearch in CI
  • gitlab-org/gitlab!147527 (merged)
• Upgrade or add the new version of Elasticsearch in gitlab-elasticsearch-indexer CI
  • gitlab-org/gitlab-elasticsearch-indexer!369 (merged)
• Update gdk Elasticsearch version (example MR: gitlab-org/gitlab-development-kit!2573 (merged))
  • gitlab-org/gitlab-development-kit!3629 (merged)
• Update SystemCheck::App::SearchCheck methods (if applicable)
  • N/A

Quality Assurance

• Upgrade the version of Elasticsearch used in gitlab-qa nightly builds
  • gitlab-org/gitlab!147527 (merged)

Communication

• Update admin documentation with changes (as needed)
  • Not needed
• Add deprecation notice (as needed)
  • Not needed