• Remove buffer-more-ints dependency; use Node.js built-in BigInt Buffer methods (readBigInt64BE, readBigUInt64BE, writeBigInt64BE, writeBigUInt64BE) which have been available since Node.js v10.4

BREAKING CHANGE

heartbeat: 0 now correctly disables heartbeats, sending 0 in the ConnectionTuneOk frame regardless of the server's suggestion. This aligns with the AMQP 0-9-1 spec, which defines heartbeat=0 as "disabled".

Previously, 0 was passed through negotiate() which treated it as "no preference", causing the server's suggested value to be used instead.

Migration: if you are passing heartbeat: 0 and want to preserve the old behaviour of accepting the server's value, omit the option or pass null instead.

Fixes #467. Supersedes #469.

Add bundled TypeScript type definitions (fixes #843)

For full history see CHANGELOG.md.

⚠️ This release drops support for NodeJS < v10 ⚠️. This version of amqplib still works with NodeJS v0.6 through v16, but future versions will not be tested for compatibility with NodeJS < v10.

This is to unlock other improvements that can now be made, like

• using the built-in Promise object
• updating or switching libraries that previously couldn't be updated, because they had dropped support for older NodeJS
• removing code that is now covered in the standard library, e.g., checking whether a number is an integer

This release also includes an improvement to TLS connections for people using an AMQP server behind a load balancer. amqplib will now copy the hostname of the connection URL or object to the server name indication field.

This minor version release extends support to Node.js v15.

• Fix to muxing (#503)
• Increase the encoding scratch buffer size (#545)