Changelog

1.10.0 (2026-04-10)

Fixes

• Use power-of-two random choices for channel selection to avoid thundering herd

1.9.2 (2026-03-21)

Fixes

• Use daemon threads for grpc-gcp background executors by default

Features

• Support of Unbind manual affinity keys after terminal calls

1.9.1 (2025-12-27)

Fixes

• Fix race for metrics values (#228)

1.9.0 (2025-12-15)

Features

• Set channelID in call options for downstream interceptors (#225)

1.8.0 (2025-12-12)

Features

• End to end fallback (#221)
• Migrate opencensus metrics to opentelemetry (#222)

1.7.0 (2025-09-23)

Features

• Dynamic channel pool scaling (#194)

1.6.1 (2024-06-17)

Features

• Log manual affinity and disabling affinity (#177)

1.6.0 (2024-05-09)

Features

• Affinity keys cleanup. Allow setting keys lifetime (#174)
• Manual affinity via call options or context (#175)

1.5.0 (2023-11-08)

Features

• Add disable affinity feature (#167)

1.4.1 (2023-01-30)

Fixes

• Support common labels for multi-endpoint metrics (#160)

1.4.0 (2023-01-27)

Features

• MultiEndpoint metrics (#158)

1.3.2 (2022-12-02)

Fixes

• Fix race condition when running and adding state change callbacks. (#155)

1.3.1 (2022-10-24)

Fixes

• MultiEndpoint: allow specifying protocol in the endpoint. (#151)

1.3.0 (2022-10-12)

Features

• Add switching delay to GcpMultiEndpointChannel. (#145)
• Look for a multi-endpoint specified in gRPC context. (#149)

1.2.0 (2022-07-18)

Features

• multi-endpoint (#135).
• round-robin for bind calls (#127).
• minSize of the channel pool (#134).
• detailed logs (#133).
• log metrics (#131).
• map a key to current channel when bound call arrives but no mapping for the key exists (#132).
• consolidate channel pool config in the GcpChannelPoolOptions (#109).

1.1.0 (2021-07-20)

Features

• improve bind/unbind logic.
• improve getChannelRef performance for calls without channel affinity.
• more accurate affinity counts.
• allow to rebind a key to another channel and adjust affinity counts accordingly.

1.0.0 (2021-06-11)

Features

• gRPC channel pool with configurable channel affinity.
• provide a channel with minimum active streams for a new call.
• an optional fallback from non-ready channel to a ready channel.
• an option to detect unresponsive channels.