v8.4.2

What's Changed

Bug Fixes

• [8.4-stable] fix(preview): Only exchange messages with the preview frame by @alchemycms-ci-bot in #4432
• [8.4-stable] fix(admin): Highlight main navigation entries with trailing slash urls by @alchemycms-bot[bot] in #4441

Deprecations

• [8.4] feat(menu): Deprecate the position of menu entries by @tvdeyen in #4435

Full Changelog: v8.4.1...v8.4.2