What's Changed

• Removed shared mutable class attributes in core modules to prevent unintended data sharing between instances, addressing potential issues in concurrent environments. https://github.com/frappe/frappe/pull/28905
• When a Customer's name is updated, the link titles in associated Address records are now updated accordingly. https://github.com/frappe/frappe/pull/28959

Full Changelog: https://github.com/frappe/frappe/compare/v14.89.0...v14.89.1