EC rebalance now uses free space instead of used space. Refer to Learn about EC rebalancing after expansion in StorageGRID.

You can now increase the maximum allowed metadata value from 3.96 TB to 7.92 TB. Refer to Allowed metadata space.

You can now set up single sign-on (SSO) in StorageGRID using OpenID Connect (OIDC).

You can now set up a global namespace to allow tenants to access buckets across multiple StorageGRID systems. Refer to Learn about global namespace.

When required to meet the ADC quorum, the ADC service will now be moved automatically when you're converting a Storage Node to a data-only node or decommissioning a Storage Node.

You can now recover any node from a non-primary Admin Node. Refer to Recovering from primary Admin Node failures.

When the allow S3 Object Lock for existing buckets setting is enabled, an S3 tenant account can now enable S3 Object Lock for an existing bucket. After an S3 tenant account enables S3 Object Lock for an existing bucket, it can't be disabled.

You can now use CloudMirror to replicate objects in S3 Object Lock-enabled buckets. Refer to Learn about platform services.

You can now enable cross-grid replication for buckets that aren't empty. Refer to Requirements for cross-grid replication.

You can use S3 batch operations to replicate existing objects in a versioning-enabled bucket that you plan to configure for cross-grid replication.

This feature requires FPVR approval for StorageGRID 12.1. To use this feature, contact your account representative.

The If-Match and If-None-Match headers are accepted but non-functional for the S3 REST API PutObject, CompleteMultipartUpload, CopyObject, and DeleteObject.

For additional information, refer to Changes to StorageGRID S3 REST API support.

The S3 REST SPI now provides support for pre-calculated checksum values and the x-amz-checksum-type request header. Refer to Updates to REST API support.

Multi-admin verification (MAV) helps prevent accidental or unauthorized changes to your StorageGRID system. Refer to Learn about StorageGRID multi-admin verification.

The FIPS strict policy criteria have been updated. Refer to Select a security policy in Manage the TLS and SSH policy.

The account clone feature now refers to a one-time clone of specific tenant account information.

Account sync is a new feature that allows you to automatically and continuously replicate tenant account, tenant groups, tenant users, and S3 access keys among the StorageGRID systems in one or more grid federation connections. Refer to Learn about account sync in StorageGRID.

Mutual Transport Layer Security (mTLS) is now supported for Kafka endpoints. Refer to Configure platform services endpoints.

A StorageGRID system now supports a maximum of 20,000 buckets for each S3 tenant account.

During StorageGRID upgrade to version 12.1, the time to enable features has increased from under five minutes to an hour. Refer to Estimate the time to complete a StorageGRID upgrade.

A new BMC Settings tab has been added to the Nodes page in Grid Manager to allow BMC password reset and changes to the BMC LAN IP settings. Refer to Change appliance BMC password and Change appliance node BMC LAN IP settings. New API endpoints have also been added to support these functions. Refer to New endpoints for changing the BMC password and LAN IP settings.

The Grid Manager now has a common email page to configure and manage email notifications for alerts, AutoSupport, and multi-admin verification (MAV). Refer to Configure email server.

StorageGRID 12.1 provides more detailed Link cost information and settings. Refer to Manage link costs.

You can now enable or disable USB ports through Grid Manager. Refer to Control remote access through USB ports.