Gohan used to support a number of features that are now considered legacy. This list includes:
- file (json/yaml) based database
- SNMP
- AMQP
- Golang extensions (superseeded by Golang Plugins)
- Own scripting language (Gohanscript)
- ETCDv2 (superseeded by ETCDv3)
These features are still available in the v1.0.0 tag (cf. https://github.com/cloudwan/gohan/blob/v1.0.0/README.md), though they are not actively maintained.