Mark ScalarDB 3.11 as no longer supported

[josh-wong]

Description

This PR marks ScalarDB 3.11 as no longer supported since Assistance Support ended on June 24, 2025.

Related issues and/or PRs

N/A

Changes made

• In each version of the Release Support Policy docs:
  • Added an asterisk to 3.11.
  • Added the out-of-support style to the cells in the table.
• In docusaurus.config.js:
  • Added the unmaintained banner, which automatically adds a banner to each page for version 3.11 that states the version is no longer supported.
• On the Unsupported Versions page in English and Japanese, which appears in the version dropdown menu:
  • Added a link to version 3.11 docs.

Checklist

The following is a best-effort checklist. If any items in this checklist are not applicable to this PR or are dependent on other, unmerged PRs, please still mark the checkboxes after you have read and understood each item.

• I have updated the side navigation as necessary.
• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation to reflect the changes.
• Any remaining open issues linked to this PR are documented and up-to-date (Jira, GitHub, etc.).
• My changes generate no new warnings.
• Any dependent changes in other PRs have been merged and published.

Additional notes (optional)

N/A

[gemini-code-assist]

Summary of Changes

Hello @josh-wong, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request updates the ScalarDB documentation to reflect that ScalarDB 3.11 is no longer supported. The changes involve modifying the release support policy tables to visually indicate the end-of-support for version 3.11, configuring the Docusaurus website to display an 'unmaintained' banner on 3.11 documentation pages, and updating the dedicated 'Unsupported Versions' page to include 3.11. These updates ensure users are aware of the support status for older ScalarDB versions.

Highlights

• Documentation Updates for Release Support Policy: The Release Support Policy documentation files (both English and Japanese versions across multiple ScalarDB versions) have been updated to visually mark ScalarDB 3.11 as out-of-support. This includes adding an asterisk to the version number and applying a specific CSS class for styling.
• Docusaurus Configuration for Unsupported Versions: The Docusaurus configuration file has been modified to set a new label for ScalarDB 3.11, indicating it is 'unsupported', and to activate an 'unmaintained' banner for all pages related to this version. This ensures users are clearly notified when viewing older documentation.
• Unsupported Versions Page Update: The 'Unsupported Versions' page, available in both English and Japanese, has been updated to include ScalarDB 3.11 in the list of no longer supported versions, providing a direct link to its documentation.

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[gemini-code-assist]

Code Review

This pull request correctly marks ScalarDB version 3.11 as unsupported across all relevant documentation files and configurations. The changes include updating the release support policy tables, adding an 'unmaintained' banner in docusaurus.config.js, and updating the unsupported versions pages. The changes are consistent and well-executed. I've noted one minor issue regarding scope creep where changes for version 3.10 were included in two files but not mentioned in the PR description. Please see my detailed comments.