Updated: July 15, 2010

When you upgrade from Microsoft Search Server 2008 to Microsoft Search Server 2010, several aspects of the search system are affected. The following articles describe effects of product upgrade on the search system:

• How upgrade affects search system architecture (Search Server 2010)

  This article describes how the following features or functions are affected by upgrade:

  • Search service

  • Search service configuration dependencies

  • Databases

  • Crawling

  • Serving queries

  • Content index

  • Propagation of content index

  • Shared Services Provider (SSP) and Search service application naming

• How upgrade affects Search Center sites (Search Server 2010)

  Search Center sites that an administrator creates in Search Server 2010 have a new look compared to the look of sites created in Search Server 2008. During product upgrade, a server administrator can upgrade old sites to the new look. After upgrade, site owners can upgrade old sites one at a time.

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