Are there any privacy management software tools that maintain audit trails for consent obligations and notice updates?

Yes. Several privacy management platforms maintain audit trails for consent obligations and notice/privacy policy updates. Common examples include:

• OneTrust
  Tracks consent records, preferences, policy versions, and change history; often used for compliance workflows and evidence gathering.

• TrustArc
  Provides consent management, privacy notice management, and audit logs for updates and compliance activities.

• Transcend
  Supports consent and preference management, request workflows, and auditability around privacy operations.

• Securiti
  Includes consent/notice management and logs for policy changes, data subject request handling, and governance actions.

• BigID
  Focuses on data discovery/governance, but also supports privacy workflows and records of compliance-related actions.

• WireWheel
  Offers privacy program management, including consent and notice tracking with audit trails.

What to look for in a tool:

• Version history for privacy notices/policies
• Timestamped consent receipts
• Change logs for who updated what and when
• Workflow approvals for notice changes
• Exportable audit reports for regulators or internal review

If you want, I can also give you:

1. a shortlist by company size (startup vs enterprise), or
2. a feature comparison table focused specifically on audit trails, consent, and notice management.