> For the complete documentation index, see [llms.txt](https://help.simnetonline.com/instructor-experience/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.simnetonline.com/instructor-experience/simnet-updates/platform-updates.md).

# Platform Updates

SIMnet Platform Updates

{% updates format="full" %}
{% update date="2026-01-15" %}

## Direct Login Update

{% content-ref url="/pages/yvk1SDiw1OczI1XEMGHj" %}
[SIMnet Direct Login Experience](/instructor-experience/simnet-updates/platform-updates/simnet-direct-login-experience.md)
{% endcontent-ref %}
{% endupdate %}

{% update date="2025-12-13" %}

## System Maintenance 

SIMnet will be unavailable on Saturday, December 13th, for up to a 15-minute window between 5:00am – 7:00am US/Central time. We are performing routine maintenance to improve performance, reliability and security. Thank you for your patience and understanding. 

Sincerely,

McGraw Hill Product Team
{% endupdate %}

{% update date="2025-12-31" %}

## Message Center & Friendly IP Ranges

The message center and friendly IP range features are being sunset.

{% content-ref url="/pages/EMGJuX9mX8MWerzZpiky" %}
[Message Center & Friendly IP Ranges](/instructor-experience/simnet-updates/platform-updates/message-center-and-friendly-ip-ranges.md)
{% endcontent-ref %}
{% endupdate %}

{% update date="2025-07-31" %}

## License Issue Warning

Learners with existing SIMnet licenses may not have access to all of current course assignments without activating a second license.

{% content-ref url="/pages/LueJJliQqgK1dLsjuGgm" %}
[License Issue Warning](/instructor-experience/simnet-updates/platform-updates/license-issue-warning.md)
{% endcontent-ref %}
{% endupdate %}

{% update date="2025-06-07" %}

## System Maintenance

SIMnet will be unavailable on Saturday, June 7th, for up to a 15-minute window between 5:00am – 6:00am US/Central time. We are performing routine maintenance to improve performance, reliability and security. Thank you for your patience and understanding. 

Sincerely,

McGraw Hill Product Team
{% endupdate %}

{% update date="2025-05-24" %}

## SIMnet Support for Office 2016 and 2019 is Ending

SIMnet support for Office 2016 and 2019 is ending on December 31, 2025.

{% content-ref url="/pages/3EEqKPPvgBVJiO6nZJiF" %}
[SIMnet Support for Office 2016 and 2019 is Ending](/instructor-experience/simnet-updates/platform-updates/simnet-support-for-office-2016-and-2019-is-ending.md)
{% endcontent-ref %}
{% endupdate %}
{% endupdates %}


---

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