Deprecate Elasticsearch 6.8.x in GitLab 15.0
<!-- Use this template as a starting point for deprecations. --> ### Deprecation Summary - AWS Opensearch is not compatible with Advanced Search. - We will need to Deprecate Advanced Search Support for Elasticsearch 6.8 in order to make Advanced Search compatible with Opensearch. - GitLab 15.0 will Support AWS Opensearch. - Customers using AWS we recommend using AWS Elasticsearch Service 7.10 until GitLab 15.0 Related to #299769. Deprecation of Advanced Search support for Elasticsearch 6.8 was first scheduled to for GitLab 14.4 and was delayed as long as possible. We are now finding there are issues in supporting AWS Opensearch while also supporting Elasticsearch 6.8 there For we will be continuing with the depreciation of Elasticsearch 6.8 with the release of GitLab 14.8 ### Breaking Change Customers will need to Upgrade to Elasticsearch 7.x or later before upgrading GitLab 15.0 ### Affected Topology Self-Managed users with Advanced Search Enabled and Using Elasticsearch Version 6.8. <!-- Who is affected by this deprecation, Self-managed users, SaaS users, or both? This is especially important when nearing the annual major release where breaking changes and removals are typically introduced. These changes might be seen on GitLab.com before the official release date. --> ### Affected Tier * Premium * Ultimate ### Checklist - [x] @changzhengliu, @dgruzd, @john-mason, @ebanks your stage's stable counterparts on this issue. For example, Customer Support, Customer Success (Technical Account Manager), Product Marketing Manager. - To see who the stable counterparts are for a product team visit [product categories](https://about.gitlab.com/handbook/product/categories/) - If there is no stable counterpart listed for Sales/CS please mention - If there is no stable counterpart listed for Support please mention @katrinleinweber - If there is no stable counterpart listed for Marketing please mention @cfoster3 - [ ] @fzimmer your GPM so that they are aware of planned deprecations. The goal is to have reviews happen at least two releases before the final removal of the feature or introduction of a breaking change. ### Deprecation Milestone <!-- In which milestone will this deprecation be announced ? --> 14.8 ### Planned Removal Milestone <!-- In which milestone will the feature or functionality be removed and announced? --> 14.8 ### Links <!-- Add links to any relevant documentation or code that will provide additional details or clarity regarding the planned change. This issue is the main SSOT for the deprecations and removals process. Be sure to link all issues and MRs related to this deprecation/removal to this issue. This can include removal issues that were created ahead of time, and the MRs doing the actual deprecation/removal work. --> <!-- Label reminders - you should have one of each of the following labels. Use the following resources to find the appropriate labels: - https://gitlab.com/gitlab-org/gitlab/-/labels - https://about.gitlab.com/handbook/product/categories/features/ --> <!-- Populate the Section, Group, and Category --> <!-- Choose the Pricing Tier(s) --> <!-- Identifies that this Issue is related to deprecating a feature --> <!-- Add the ~"breaking change" label to this issue if necessary --> Related to #299769. Deprecation of Advanced Search support for Elasticsearch 6.8 was first scheduled to for GitLab 14.4 and was delayed as long as possible. We are now finding there are issues in supporting AWS Opensearch while also supporting Elasticsearch 6.8 there For we will be continuing with the depreciation of Elasticsearch 6.8 with the release of GitLab 14.8 ``` - name: "Elasticsearch version 6.8" announcement_milestone: "14.8" announcement_date: "2022-02-22" removal_milestone: "14.8" removal_date: "2022-05-22" breaking_change: true reporter: @JohnMcGuire body: | # Do not modify this line, instead modify the lines below. Advanced Search Supporting Elasticsearch 6.8 is causing immediate compatibility issues with current versions of Opensearch 1.2. Therefore we will need to Deprecate Elasticsearch 6.8 in GitLab 14.8 Customers will need to Upgrade their Elasticsearch version to 7.x or later prior to upgrading to GitLab 14.8 although it's recommended to use the latest version of Elasticsearch. ``` ### Release Notes <!-- What is the customer symptom we are improving? How does the customer understand the problem? > <!-- What will the customer see, how will they experience the change? > <!-- Optional - What does the customer need to do to enable this feature > <!-- .doc link to the referencing documentation. > <!-- Image that will be used in the Release post >
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