3.1.3

What's Changed

• Fixed ping() so a timed-out, rejected, or connection-dropped ping no longer leaves a stale future behind that made every later ping() call fail or hang #687
• Annotation data is now encrypted on publish and decrypted on REST get() for channels with a cipher configured, instead of being sent in plaintext #680
• Fixed the "unable to attach" log to report the connection state that is blocking the attach rather than the channel state #653