Update Drupal Core from ~11.3.0 to ~11.4.0 in the Vartheme BS5 theme

Problem/Motivation

Drupal 11.4.0 stable was released on 1 Jul 2026 by catch: https://www.drupal.org/project/drupal/releases/11.4.0

This is a feature minor release of Drupal 11 and is ready for use on production sites. Learn more about Drupal 11 and the Drupal core release cycle. Read the Drupal 11.4.0 release announcement for improvements and highlights in this release.

The Vartheme BS5 theme currently pins Drupal core to ~11.3.0 (see Composer version constraints), so it cannot be installed or updated on Drupal 11.4.x. Related: Drupal core release schedule.

Steps to reproduce

On a Drupal 11.4.0 site, install/update Vartheme BS5: it is blocked because vartheme_bs5.info.yml and composer.json require ~11.3.0.

Proposed resolution

Update the Drupal core constraint from ~11.3.0 to ~11.4.0 in composer.json (drupal/core) and vartheme_bs5.info.yml (core_version_requirement).

Remaining tasks

• ✅ File an issue about this project
• ✅ Addition/Change/Update/Fix to this project
• ✅ Testing to ensure no regression
• ➖ Automated unit/functional testing coverage
• ➖ Developer Documentation support on feature change/addition
• ➖ User Guide Documentation support on feature change/addition
• ➖ UX/UI designer responsibilities
• ➖ Accessibility and Readability
• ❌ Reviewed by a human
• ❌ Code review by maintainers
• ❌ Full testing and approval
• ❌ Credit contributors
• ❌ Review with the product owner
• ✅ Update Release Notes
• ✅ Release varbase-10.1.1, vartheme_bs5-4.1.0; varbase-11.0.0-beta1, vartheme_bs5-5.0.0-beta2

User interface changes

• N/A

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• task: Update Drupal Core from ~11.3.0 to ~11.4.0