---
title: "BabelQueue 1.0 is here — polyglot queues, simplified"
description: "All six SDKs — PHP, Python, Go, Node.js, Java and .NET — are now published at 1.0.0, with a SemVer-stable API and one frozen wire envelope."
source: https://babelqueue.com/blog/babelqueue-1-0/
pubDate: 2026-06-07T00:00:00.000Z
---

BabelQueue reaches **1.0.0** today — across the **entire ecosystem**, all at once.
A message produced in one language is now consumed natively in another, over the
broker you already run, with a public API you can build on.

## What "1.0" means here

Two independent promises:

- **A SemVer-stable public API.** Every SDK is `1.0.0`. Breaking changes now require
  a MAJOR bump and follow a deprecation policy — so you can pin and upgrade with
  confidence.
- **A frozen wire envelope.** The on-the-wire format stays at `schema_version: 1`.
  A `v1` producer is readable by every `v1` consumer, in any language, indefinitely.

These are deliberately separate: your package versions can move independently while
the bytes on the queue stay stable.

## Six SDKs, one envelope

Every language ships a framework-agnostic **core** plus thin **framework adapters**:

- **PHP** — `babelqueue/php-sdk`, with **Laravel** and **Symfony** adapters
- **Python** — `babelqueue`, with **Celery** and **Django** adapters
- **Go** — `babelqueue-go`, with **Redis** and **RabbitMQ** transport modules
- **Node.js** — `@babelqueue/core`, with **BullMQ** and **NestJS** adapters
- **Java** — `com.babelqueue:babelqueue-core`, with a **Spring Boot** adapter
- **.NET** — `BabelQueue.Core`, with a **MassTransit** adapter

Every one of them vendors and passes the same cross-SDK conformance suite, so two
SDKs producing the same logical message emit byte-comparable envelopes.

## The idea, in one line

Don't change your broker — change only the serialization. BabelQueue replaces
language-specific serialization (like PHP's `serialize()`) with a strict, minimal
JSON envelope and routes by a **URN** instead of a class name:

```json
{
  "job": "urn:babel:orders:created",
  "trace_id": "7b3f9c2a-e41d-4f88-9b2a-1c0d5e6f7a8b",
  "data": { "order_id": 1042 },
  "meta": { "id": "…", "queue": "orders", "lang": "php", "schema_version": 1, "created_at": 1749132727000 },
  "attempts": 0
}
```

A built-in `trace_id` flows across every hop and language, so an end-to-end trace is
one query away.

## Get started

Producing your first polyglot message is a single call:

```php
BabelQueue::publish('urn:babel:orders:created', ['order_id' => 1042]);
```

Pick your stack on the [ecosystem](/#ecosystem), read the
[wire contract](/docs/spec/1.x/envelope/), or jump straight into a driver's docs.

Thanks to everyone who tested the pre-1.0 builds. One envelope, every language.