This is a patch release that addresses high memory load concerns for the Lotus daemon in the coming network migration for network version 22, scheduled on epoch 3855360 - 2024-04-24 - 14:00:00Z.
If your Lotus daemon is running on a machine with less memory and swap than 160GB, you should upgrade to this patch release to ensure you do not encounter any Out-Of-Memory issues during the pre-migration.