We need assistance with updating our WordPress site, which uses Advanced Custom Fields (ACF), on a Pantheon environment. The Pantheon upstream updates are currently erroring out because they are behind, and we need to clear these errors and ensure functionality. Plugins and custom functions need to be working and compatible with the new updates. Key Tasks: - Resolve upstream update errors (may involve manual WordPress update). Upstream updates should work after the fix. - PHP update to at least 8.3. - Ensure site and plugins functionality post-update. - Pay special attention to custom/critical plugins/themes. Ideal Skills: - Strong WordPress development experience, including Advanced Custom Fields (ACF). - Familiarity with Pantheon hosting environments (Dev/Test/Live workflow, upstream updates, Terminus CLI). - Proficiency with Git (branching, merging, conflict resolution). - Solid PHP & MySQL debugging skills for handling update-related errors. - Experience with front-end troubleshooting (HTML, CSS, JavaScript) to fix regressions after updates. - Ability to perform site backups, testing, and QA to ensure stability across environments.