sql server 2012 developer edition evaluation

Hardware and Software Requirements for Installing SQL Server 2012.
Note, when you upgrade to SQL Server 2012 from a prior version of SQL Server Enterprise edition, choose between Enterprise Edition: Core-based Licensing and Enterprise Edition.
I've heard (I am pretty sure) that Developer Edition is free of charge and for downloading it registration is not required.You must re-create any logins and other user objects in master, msdb, and model system databases.To upgrade to SQL Server 2012, you must be running a supported photoshop deblur plugin mac operating system.You cannot upgrade a 32-bit instance of SQL Server to native 64-bit using SQL Server Setup.Upgrade will be blocked if the Windows Installer service is not running.The table below lists the supported upgrade scenarios from earlier versions of SQL Server to SQL Server 2012.SQL Server 2012 Business Intelligence, sQL Server 2012 Standard, sQL Server 2012 Web.However, you can back up or detach databases from a 32-bit instance of SQL Server, and then restore or attach them to a new instance of SQL Server (64-bit) if the databases are not published in replication.2 Changing the edition of a SQL Server 2012 failover cluster is limited.Exe is same for all the editionos its just the key defines the edition, Is that right.

For more information about licensing, see Comprehensive licensing information for SQL Server 2012.
Upgrade From Upgrade To SQL Server 2012 Enterprise (ServerCAL or Core) 2 3 SQL Server 2012 Business Intelligence SQL Server 2012 Business Intelligence SQL Server 2012 Enterprise (ServerCAL or Core License) SQL Server 2012 Evaluation Enterprise 2 SQL Server 2012 Enterprise (ServerCAL or Core License).
Version numbers of the Database Engine, Analysis Services, and Reporting Services components must be the same in an instance of SQL Server 2012.
SQL Server 32-bit editions can be upgraded to SQL Server 2012 on the 32-bit subsystem (WOW64) of a 64-bit server.
SQL Server 2012 Enterprise.SQL Server 2005 SP4 Standard, sQL Server 2012 Enterprise.This documentation is archived and is not being maintained.Failover Clusters are not supported in the WOW mode.I already have the dvd for sql 2012 std edition.SQL Server 2012 supports upgrade from the following versions of SQL Server: SQL Server 2005 SP4 or later.SQL Server 2012 Standard to SQL Server 2012 Enterprise Evaluation.Cross-version instances of SQL Server 2012 are not supported.