# Firmware Lifecycle
# Change Log
- Initial version of EL 2.1 Firmware
# Compatibility Matrix
Please carefully check compatibility between 1.0.0 firmware version and other versions.
Legend:
- C - fully compatible;
- NC - not compatible;
- PC - party compatible, check additional notes.
| 0.16.x | 0.17.x | |
|---|---|---|
| OTA Upgradable | C | C |
| Modbus Communication Backward Compatibility | C | C |
| Configuration | C | C |
| Rollback | C | C |
# Functionality Deprication Statements
None