About this release This document contains important information about the current release. We recommend that you read the whole document. This release includes Solidcore extension 8.1.1-103 McAfee ePO versions This release supports McAfee® ePolicy Orchestrator® (McAfee® ePO™) 5.3.0-5.3.3, 5.9.0, and 5.9.1. Upgrade support This release supports upgrading from Application Control extension 6.2.x, 7.0.x, 8.0.x, and 8.1.x. When you upgrade the Solidcore extension, don't make any changes to existing rules and configuration until the Solidcore: Migration server task completes. Also, when upgrading to Solidcore extension 8.1.1, the migration task can take longer than usual. Depending on the volume of inventory data in your environment, the task can take a few hours or a day to complete. For more information, see KB84651. If you are upgrading Solidcore extension from 6.0.0 and earlier than 6.2.0, follow these steps: Upgrade Solidcore extension to 6.2.0. Upgrade McAfee ePO to 5.1.0 or later. Upgrade Solidcore extension from 6.2.0 to 8.1.1.