The following MS SQL Server database objects now have there create / modified date in the details view:

tables, system tables, views, system views, synonyms, sequences, constraints, triggers, database triggers, procedures, functions, Assemblies, XMLSchemaCollections, Defaults, Rules, Users, Roles, Certificates, Symmetric Keys

The following objects did not have modification dates stored in the catalog tables:

Index, User Defined Data Types, Schemas, Asymmetric Keys, Databases