To upgrade the HPCM management software to version 1.13, Polaris will undergo maintenance on Tuesday, May 13, 2025, starting at 14:00 UTC (9:00 a.m. CDT 05/13) and ending at 22:30 UTC on Wednesday, May 14 (5:30 p.m. CDT 05/14). During this time, no jobs will run on the system, and there will be no access to the login nodes. Filesystem access will be disrupted. No recompilation of user codes will be required after the maintenance. Please contact support@alcf.anl.gov with any questions or concerns.