v5.0.0

What's Changed

• feat: Enterprise Exception Architecture (v5.0.0) by @eman in #30

Full Changelog: v4.8.0...v5.0.0

v4.8.0

What's Changed

• Add Token Restoration Support for Session Persistence by @eman in #29

Full Changelog: v4.7.1...v4.8.0

v4.7.1

Full Changelog: v4.7...v4.7.1

v4.7: Two-Tier MQTT Reconnection & Code Quality Improvements

🚀 Major Improvements

Two-Tier MQTT Reconnection Strategy

• Quick reconnection (attempts 1-9): Fast recovery from transient network issues
• Deep reconnection (every 10th attempt): Full rebuild with credential refresh and subscription recovery
• Unlimited retries: Never gives up permanently (changed from 10 max attempts to unlimited)
• Deep reconnection includes token refresh with fallback to full re-authentication
• Automatic re-establishment of all subscriptions after deep reconnection

Enhanced Error Handling

• Replaced 25 catch-all exception handlers with specific exception types
• Added safety checks for attribute access (hasattr() before e.name)
• Proper exception types: AwsCrtError, AuthenticationError, TokenRefreshError, RuntimeError, ValueError, TypeError, AttributeError, KeyError
• Only 1 legitimate catch-all preserved (EventEmitter for user callback resilience)

New Public API

• NavienAuthClient.has_stored_credentials property - Check if credentials available for re-auth
• NavienAuthClient.re_authenticate() method - Perform fresh sign-in with stored credentials
• MqttSubscriptionManager.resubscribe_all() method - Restore all subscriptions after reconnection

Code Quality Improvements

• Simplified nested conditions with local variables for readability
• Optimized subscription recovery (break after first failure per topic)
• Fixed subscription failure tracking to use sets for unique counting
• Improved boolean expressions with intermediate variables
• Added exception handling guidelines to Copilot instructions

Bug Fixes

• Eliminated duplicate "Connection interrupted" log messages
• Prevented redundant subscription retry logs

📊 Statistics

• 350 lines added, 70 removed (+280 net)
• 80/80 tests passing (100% pass rate)
• Overall test coverage: 31%
• Zero type errors (mypy)
• All linting checks pass

🔧 Configuration

New configuration parameter:

MqttConnectionConfig(
    max_reconnect_attempts=-1,  # -1 = unlimited (default, changed from 10)
    deep_reconnect_threshold=10,  # Deep reconnect every 10 attempts (new)
)

🎯 Impact

• Production-ready MQTT reconnection resilience
• Never loses connection permanently
• Handles expired AWS credentials gracefully
• Cleaner, more maintainable codebase
• Better error messages and debugging

Full Changelog: https://github.com/eman/nwp500-python/blob/main/CHANGELOG.rst

v3.1.4

What's Changed

• Fix MQTT reconnection failures due to expired AWS credentials by @eman in #27

Full Changelog: v3.1.3...v3.1.4

v3.1.3

What's Changed

• Fix: Improve MQTT reconnection reliability with active reconnection by @eman in #26

Full Changelog: v3.1.2...v3.1.3

v3.1.2

What's Changed

• Fix 401 authentication errors with automatic token refresh by @eman in #25

Full Changelog: v3.1.1...v3.1.2

v3.1.1

Full Changelog: v3.1.0...v3.1.1

v3.1.0

What's Changed

• Refactor: PEP 257 docstrings, 80 char line limit, and comprehensive documentation by @eman in #24

Full Changelog: v3.0.0...v3.1.0

v3.0.0

What's Changed

• Fix all mypy strict mode errors by @eman in #23

Full Changelog: v2.0.0...v3.0.0