Welcome to Amazon S3
Introduction to Amazon S3
Making Requests
- Making Requests using AWS SDKs
- Making Requests using the REST API
Working with Amazon S3 Buckets
- Bucket Restrictions and Limitations
- Bucket Configuration Options
  - Buckets and Regions
- Managing Bucket Website Configuration
- Requester Pays Buckets
- Buckets and Access Control
- Billing and Reporting of Buckets
Working with Amazon S3 Objects
- Object Key and Metadata
- Object Subresources
- Object Versioning
- Object Expiration
  - Manage Object Expiration Using AWS Management Console
  - Manage Object Expiration Using the REST API
- Operations on Objects
  - Multipart Upload Overview
- Getting Objects
- Uploading Objects
- Copying Objects
  - Copying Objects in a Single Operation
  - Copying Objects Using the Multipart Upload API
- Listing Object Keys
- Deleting Objects
  - Deleting One Object Per Request
  - Deleting Multiple Objects Per Request
Access Control
- Using IAM Policies
- Using Bucket Policies
- Using ACLs
- Using ACLs and Bucket Policies Together
- Using Query String Authentication
Data Protection
- Using Data Encryption
  - Using Server-Side Encryption
  - Using Client-Side Encryption
    - Specifying Client-Side Encryption Using the AWS SDK for Java
      - Customizing Your Client-Side Encryption Environment
- Using Reduced Redundancy Storage
  - Setting the Storage Class of an Object You Upload
  - Changing the Storage Class of an Object in Amazon S3
    - Return Code For Lost Data
- Using Versioning
Hosting Websites on Amazon S3
- Setting Up a Website
- Website Endpoints
- Index Document Support
- Custom Error Document Support
- How Do I Configure My Bucket As a Website?
- Permissions Required for Website Access
Setting Up Notification of Bucket Events
Request Routing
- Request Redirection and the REST API
- DNS Considerations
Performance Optimization
- TCP Window Scaling
- TCP Selective Acknowledgement
Using BitTorrent with Amazon S3
- How You are Charged for BitTorrent Delivery
- Using BitTorrent to Retrieve Objects Stored in Amazon S3
- Publishing Content Using Amazon S3 and BitTorrent
Using Amazon DevPay with Amazon S3
- Amazon S3 Customer Data Isolation
- Amazon DevPay Token Mechanism
- Amazon S3 and Amazon DevPay Authentication
- Amazon S3 Bucket Limitation
- Amazon S3 and Amazon DevPay Process
- Additional Information
Handling Errors
- The REST Error Response
  - Error Response
- The SOAP Error Response
- Amazon S3 Error Best Practices
Server Access Logging
- Server Access Logging Configuration API
- Delivery of Server Access Logs
- Server Access Log Format
- Setting Up Server Access Logging
Using the AWS SDKs and Explorers
- Using the AWS SDK for Java
- Using the AWS SDK for .NET
- Using the AWS SDK for PHP
- Using the AWS SDK for Ruby
Appendices
- Appendix A: The Access Policy Language
- Appendix B: Using the SOAP API
Amazon S3 Resources
Document History
Glossary
Index

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Using Versioning

Topics

Versioning is a means of keeping multiple variants of an object in the same bucket. In one bucket, for example, you can have two objects with the same key, but different version IDs, such as photo.gif (version 111111) and photo.gif(version 121212).

You might enable versioning to prevent objects from being deleted or overwritten by mistake, or to archive objects so that you can retrieve previous versions of them.

	Note
	The SOAP API does not support versioning.

Document Conventions
Terms of Use

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