TimescaleDB (single-node) leverages Postgres features for HA (physical replication). It was never in the "enterprise tier", it fully works with the pure Apache 2 version.
We also make available k8s helm charts that make it super easy to setup replicated clusters, including with mechanisms (Patroni) for automated failure detection and failover, and continuous incremental backup. That's also available under the Apache-2 license:
(There used to be some slightly confusing language in our product page that perhaps led to some of your confusion, and apologies for that.)
For multi-node (available starting in TimescaleDB 2.0), we are working on more native mechanisms for replication. But as announced earlier, these will all be "community" features (free) under our Timescale License.
We also make available k8s helm charts that make it super easy to setup replicated clusters, including with mechanisms (Patroni) for automated failure detection and failover, and continuous incremental backup. That's also available under the Apache-2 license:
https://github.com/timescale/timescaledb-kubernetes
(There used to be some slightly confusing language in our product page that perhaps led to some of your confusion, and apologies for that.)
For multi-node (available starting in TimescaleDB 2.0), we are working on more native mechanisms for replication. But as announced earlier, these will all be "community" features (free) under our Timescale License.