The main new features are:
- Data cache: The data cache can be configured using the WithMaxCacheSize to specify how much data should be cached in memory.
- Data compression: Compression can be configured using the WithCompression option.
- Encryption at rest: Badger can be configured to encrypt data on disk using the WithEncryptionKey and WithEncryptionKeyRotationDuration options.
There are various bug fixes, optimizations, and new options. See the CHANGELOG for details.