**This release is backward incompatible.**
**key drivers:**
1. support of SNMP tabular parameters in a flexible way
Now each parameter belongs to its group. Groups can hold only scalar parameters. Hosts are linked to parameters through parameter group instance. If group denotes SNMP tabular parameter then parameter group instance must have nonzero OID and a name. Scalars must have zero OID and name is ignored. Parameter values are stored in a [measurement](https://docs.influxdata.com/influxdb/latest/concepts/key_concepts/measurement) named by its group. Each parameter group have its own measurement so `INFLUXDB_MEASUREMENT` setting is removed.
1. performance improvements
To reduce number of SNMP GET queries maximal number of SNMP parameters fetched in single SNMP GET query was increased from 8 to 32. Gathered values are now written in batches to InfluxDB. Maximum batch size is configured with new `INFLUXDB_BATCH_SIZE` setting (set by default to 10000). Each [point](https://docs.influxdata.com/influxdb/latest/concepts/key_concepts/point) is always written in a single operation and never updated (no partial inserts). But this narrows down list of supported brokers to Redis only.
**other new features:**
* static tags
* parameters as dynamic tags
* longer names are accepted
* translation improved