Microsoft is improving the appearance of highlighted text while users compose messages in dark mode and high contrast mode. This update provides a more consistent and accessible editing experience by improving the visual presentation of highlighted content across supported themes.
Microsoft 365 Message Center ID: MC1462470
Last Modified: August 27, 2026
Category: Message Center
Tags: New feature, User impact
Status: Launched
Products & Platforms: Microsoft Teams
Rollout schedule
- Targeted Release (Worldwide): Rollout will begin in mid-September 2026 and is expected to be complete by late September 2026.
- General Availability (Worldwide, GCC, GCC High, DoD): Rollout will begin in late September 2026 and is expected to be complete by early October 2026.
Impact on your organization
Who is affected
Users who compose messages using dark mode or high contrast mode.
Platforms and services
- Microsoft 365 message-composition experiences that support text highlighting.
After this update:
- Highlighted text will display more consistently in dark mode and high contrast mode.
- Users may notice improved readability and a more uniform editing experience when working with highlighted content.
- This is a visual enhancement only. It does not change existing text-highlighting functionality or user workflows.
Action required / Recommendations
No action is required. You may want to inform users about this visual improvement if your organization communicates Microsoft 365 experience updates to end users.
Compliance Considerations
No compliance considerations identified, review as appropriate for your organization.