Microsoft Teams: Clearer text highlighting in dark mode and high contrast mode

[What and why:]

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.

[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.