| ⇢ | A | PayloadEnvelope added | |
| A | ↛ | PayloadEnvelope removed |
| ⇢ | A | PayloadEnvelope::changeState() added | |
| ⇢ | A | PayloadEnvelope::__construct() added | |
| ⇢ | A | PayloadEnvelope::wrap() added | |
| ⇢ | A | PayloadEnvelope::hasChanged() added | |
| ⇢ | A | PayloadEnvelope::state() added | |
| ⇢ | A | PayloadEnvelope::history() added | |
| ⇢ | A | PayloadEnvelope::subject() added | |
| A | ↛ | PayloadEnvelope::changeState() removed | |
| A | ↛ | PayloadEnvelope::__construct() removed | |
| A | ↛ | PayloadEnvelope::wrap() removed | |
| A | ↛ | PayloadEnvelope::hasChanged() removed | |
| A | ↛ | PayloadEnvelope::state() removed | |
| A | ↛ | PayloadEnvelope::history() removed | |
| A | ↛ | PayloadEnvelope::subject() removed |