Breaking Changes #

• Now requires init() before using any component
• Encryption key is now required

Added #

• AES-256 encryption with random IV per operation
• SHA-256 key derivation
• GZIP compression for optimized storage
• Thread-safe operations with lock mechanism
• Logger hook for enterprise monitoring
• Metrics tracking (operations, errors, queue size, avg response time)
• Exponential backoff retry (1s, 2s, 4s... max 30s)
• Configurable max queue size
• onSuccess and onError callbacks in OfflineSync
• Configurable connectivity check host

Changed #

• Separate encrypted files for session, cache, and queue
• SDK requirement updated to >=2.17.0

Dependencies #

• Added crypto: ^3.0.3
• Added encrypt: ^5.0.3

Added #

• SecureSession - Token storage with expiration
• OfflineCache - Key-value persistent storage
• OfflineQueue - Queue actions when offline
• OfflineSync - Process queue on reconnection with 2s timeout

Features #

• Single file architecture
• Compatible with Dart SDK >=2.12.0 <4.0.0
• Automatic connectivity monitoring