Published: 11.24.21 – 

MiHIN Production Code/Feature & Operational Freezes

MiHIN’s annual holiday freezes will occur between December 11, 2021 through January 2, 2022. The freeze details are available below:

  • A maintenance production code and feature freeze will occur 12/11 through 1/2 and the last maintenance window, before the freeze, will occur on 12/9.
  • An operational freeze, which includes any new Onboardings and Legacy ACRS file submissions, will occur 12/22 through 1/2. This does not include ACRS file submissions via the MIGateway File Submission module, as the File Submission module will remain operable.
  • If you submit ACRS files via the Legacy method (not via MIGateway File Submission), please submit your ACRS files before 12/22 for validation and loading.

The MiHIN office will be closed December 24, 2021 through January 2, 2022. If you require assistance, please submit a ticket to or email If you are experiencing issues that are causing a critical or significant business impact, please call our help desk at (844) 454-2443.

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