Release notes - Microsoft Trusted Root Certificate Program
The Microsoft Trusted Root Certificate Program releases changes to our Root Store on a monthly cadence, except for December. The public can expect the following cadence for releases:
- Additions and non-deprecating modifications will be completed any month
- Certificate Authority (CA)-initiated and CA-confirmed deprecations will occur on even numbered months
- Microsoft-initiated deprecations will occur in February and August releases
If you are a certificate user who has active certificates chaining up to a deprecating root, please reach out to your CA to understand how changes may impact your certificates. Update packages will be available for download and testing at https://aka.ms/CTLDownload
Please note, the changes listed are accurate at the time of posting but are subject to change.
A list of Root Store participants, updated monthly, can be found here: https://aka.ms/trustcertpartners.
|Month||Date of Release||Release Notes|
|May||May 28||Deployment Notice Posted May 1|
|April||April 30||Deployment Notice Posted April 15|
|March||March 26||Deployment Notice Posted March 6|
|February||March 5||Deployment Notice Posted February 19|
|January||January 29||Deployment Notice Posted January 23|
2018 and earlier coming soon