Compatibility

Compatibility matrix

Every BabelQueue SDK runs the same conformance suite (external site) and publishes the outcome as results.json on its release. This page is generated from those files when the site is built, so nothing here is edited by hand. An SDK is Compatible when it has no failing case in the core or in any transport it ships, and its results file is a release asset.

Live interop 7/7 passing

Nightly run: 31 Oct 2026, 09:50 UTC . Page built: 31 Oct 2026, 10:11 UTC , conformance suite 1.8.0.

Conformance results per SDK for the core and each transport, plus the nightly live-interop result per transport.
SDK	Status	Core	Redis	RabbitMQ	Amazon SQS	Azure Service Bus	Pulsar	Kafka	Artemis	OpenTelemetry
PHP(external site)	No data	PHP / Core: No data (external site)	PHP / Redis: No data (external site)	PHP / RabbitMQ: No data (external site)	PHP / Amazon SQS: No data (external site)	PHP / Azure Service Bus: Exception ADR-0021	PHP / Pulsar: No data (external site)	PHP / Kafka: No data (external site)	PHP / Artemis: No data (external site)	PHP / OpenTelemetry: No data (external site)
Python(external site) v1.24.0	Compatible	Python / Core: Pass (external site) 268/268	Python / Redis: Pass (external site) 68/68	Python / RabbitMQ: Pass (external site) 1/1	Python / Amazon SQS: Pass (external site) 51/51	Python / Azure Service Bus: Pass (external site) 48/48	Python / Pulsar: Pass (external site) 71/71	Python / Kafka: Pass (external site) 146/146	Python / Artemis: Pass (external site) 43/43	Python / OpenTelemetry: Pass (external site) 14/14
Go(external site) v1.18.0	Compatible	Go / Core: Pass (external site) 268/268	Go / Redis: Pass (external site) 68/68	Go / RabbitMQ: Pass (external site) 1/1	Go / Amazon SQS: Pass (external site) 51/51	Go / Azure Service Bus: Pass (external site) 48/48	Go / Pulsar: Pass (external site) 71/71	Go / Kafka: Pass (external site) 146/146	Go / Artemis: Pass (external site) 43/43	Go / OpenTelemetry: Pass (external site) 14/14
Node.js(external site) v1.13.0	Incomplete	Node.js / Core: Incomplete (external site) 170/171 1 skipped `encode_reject/reject-repeated-key` — ADR-0031 (b): a repeated extension key is not expressible through the single-map MakeOptions.meta write API; the manifest allows every SDK except Go to skip it	Node.js / Redis: not carried	Node.js / RabbitMQ: not carried	Node.js / Amazon SQS: not carried	Node.js / Azure Service Bus: not carried	Node.js / Pulsar: not carried	Node.js / Kafka: not carried	Node.js / Artemis: not carried	Node.js / OpenTelemetry: Pass (external site) 14/14
Java(external site) v1.14.0	Incomplete	Java / Core: Incomplete (external site) 170/171 1 skipped `encode_reject/reject-repeated-key` — Assumption failed: ADR-0031: repeated meta keys are inexpressible in Java (make() takes one map per call)	Java / Redis: not carried	Java / RabbitMQ: not carried	Java / Amazon SQS: not carried	Java / Azure Service Bus: not carried	Java / Pulsar: not carried	Java / Kafka: not carried	Java / Artemis: not carried	Java / OpenTelemetry: Pass (external site) 14/14
.NET(external site) v1.13.0	Incomplete	.NET / Core: Incomplete (external site) 170/171 1 skipped `encode_reject/reject-repeated-key` — ADR-0031: meta_entries expresses a repeated key, which the one-dictionary-per-call Make(meta:) API cannot carry	.NET / Redis: not carried	.NET / RabbitMQ: not carried	.NET / Amazon SQS: not carried	.NET / Azure Service Bus: not carried	.NET / Pulsar: not carried	.NET / Kafka: not carried	.NET / Artemis: not carried	.NET / OpenTelemetry: Pass (external site) 14/14
Live interop(external site) nightly, cross-language	7/7	Live interop / Core: not covered	Live interop / Redis: Passing (external site) python to go	Live interop / RabbitMQ: Passing (external site) python to node	Live interop / Amazon SQS: Passing (external site) python to go	Live interop / Azure Service Bus: Passing (external site) python to go	Live interop / Pulsar: Passing (external site) java to dotnet	Live interop / Kafka: Passing (external site) java to go	Live interop / Artemis: Passing (external site) java to python	Live interop / OpenTelemetry: not covered

How to read this

Pass: Every case of the sections in that scope passed. The count is passed cases out of all cases.
Known gap: The SDK fails cases that are listed in its conformance-known-gaps.json, each with a reason. A row with a known gap is not shown as Compatible.
Fail: A failing case that is not a listed gap.
Exception: A transport the SDK family deliberately does not support, recorded as an ADR in the conformance manifest. It is not a skipped test.
Skipped: Individual cases an ADR allows an SDK to skip. They are listed in the cell with their reason.
No data: The results file could not be fetched when the site was built.
Live interop: The nightly cross-language run against real brokers. It is extra evidence, not a condition for being Compatible.