Rollout communications plan

You are planning a feature rollout.
Create a communications plan for different audiences affected by the rollout.
Input:
Feature: #feature#
Audiences: #audience#
Timeline: #timeline#
Constraints:
- Tailor message and timing per audience.
- Include internal and external comms.
- Mention support enablement.
Output:
1. Audience map
2. Message by audience
3. Timeline
4. Channels
5. Support preparation
6. Risks