3.1.0 -- 2023-09-11

Features

• Support underscores in DynamoDB expression attribute names

Maintenance

• Upgrade various library dependencies
• A variety of fixes to the library's CI and testing

3.0.0 -- 2023-07-24

Features

• Updates to the AWS Cryptographic Material Providers Library for Java,
  a pivotal dependency of the this library,
  introduce Thread Safe Cryptographic Materials Caches (CMCs):
  • Storm Tracking Cache
    Safe for use in a multi threaded environment,
    tries to prevent redundant or overly parallel backend calls.
    See Spec changes for details.
  • Multi Threaded Cache
    Safe for use in a multi threaded environment,
    but no extra functionality
• Examples for using the Enhanced Client via Lombok Annotation and TableSchemaBuilder
• Detection of ignored DynamoDB Encryption Configuration Tags due to Nested Data Models
• Multi Threading Example

BREAKING CHANGES

• Updates to the AWS Cryptographic Material Providers Library for Java,
  a pivotal dependency of the library,
  introduce the following breaking changes:
  • CMCs:
    • Original Cryptographic Materials Cache has been renamed to Single Threaded Cache
    • CreateCryptographicMaterialsCacheInput now ONLY accepts CacheType,
      which determines which, if any, of the three implemented CMCs will be returned.
    • The DefaultCache is StormTrackingCache
  • CreateAwsKmsHierarchicalKeyringInput:
    • no longer has a maxCacheSize field
    • now has an optional cache field for a CacheType
  • Hierarchical Keyring's Key Store:
    • The Hierarchical Keyring's Key Store's Data Structure has changed.
      As such, entries persisted in the Key Store with prior versions of this library are NOT compatible.
      Instead, we recommend Creating a new DynamoDB Table for this version of the Key Store.
    • The Key Store's CreateKeyInput now takes:
      • An Optional String branchKeyIdentifier
      • An Optional EncryptionContext encryptionContext
        • This encryptionContext will be added to the Encryption Context sent to KMS prefixed with aws-crypto-ec:
    • Creating a Key now also calls KMS:ReEncrypt
    • CreateKeyStore no longer creates a GSI
    • The Encryption Context used with KMS' GenerateDataKeyWithoutPlaintext no longer includes the discarded GSI's status.
    • More details about the Key Store's changes are available in our Specification:
      • 2023-07-12 Update Key Store
      • KeyStore Specification

Fix

• With the Enhanced Client, Identify Only Index attributes for Sign Only,
  NOT all Key Attributes, such as Auto Generated Last Modified Time Stamp.

Maintenance

• A variety of fixes to the libraries CI and testing

3.0.0-preview-2 -- 2023-06-09

Fix

• Fixes generated pom.xml file such that it is compatible with mvn projects.

3.0.0-preview-1 -- 2023-06-09

Features

• Initial release of the AWS Database Encryption SDK.
  This release is considered a developer preview
  and is not intended for production use cases.