add v0.25.0 changelog
## Changelog
+### v0.25.0 - June 11th 2022
+
+- Processors
+
+ - [Strings replace processor](user_guide/event_processors/event_strings) supports replaces using regular expressions.
+
+ - Processors are now supported when collecting telemetry using [listen command](cmd/listen.md) (Nokia SROS specific)
+
+- New Processors
+
+ - [Data convert](user_guide/event_processors/event_data_convert.md)
+
+ - [Duration convert](user_guide/event_processors/event_duration_convert.md)
+
+ - [Value tag](user_guide/event_processors/event_value_tag.md)
+
+- [Clustering](user_guide/clustering.md)
+
+ - `gNMIc` supports kubernetes based clustering,
+ i.e you can build `gNMIc` clusters on kubernetes without the need for Consul cluster.
+
+- [Yang path generation](cmd/generate.md)
+
+ - The command `gnmic generate path` supports generating paths for YANG containers.
+ In earlier versions, the paths generation was done for YANG leaves only.
+
+- Internal gNMIc Prometheus metrics
+
+ `gNMIc` exposes additional internal metrics available to be scraped using Prometheus.
+
+- Static tags from target configuration
+
+ - It is now possible to set static tags on events by configuring them under each target.
+
+- Influxdb cache
+
+ The [InfluxDB output](user_guide/outputs/influxdb_output.md) now supports gNMI based caching, allowing to apply processors on multiple event messages at once and batching the written points to InfluxDB.
+
### v0.24.0 - March 13th 2022
- [gRPC Tunnel Support](user_guide/tunnel_server.md)
