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v0.4.3 - beta

Release date: January 6th, 2023
Please make sure your SDKs are updated to the latest version to enjoy new features

Added features

  • DLS (dead-letter station) now supports storing messages that violate an attached schema. Stored message types can be controlled via triggers.
  • Schemaverse now supports GraphQL.
  • Schemaverse users using Go SDK can send protobuf messages by sending map[string]interface{} type, without storing the schemas locally.
  • NATS compatibility. Memphis is now compatible with all NATS SDKs.
  • REST (HTTP proxy) logs are now exposed in the logs section.
  • Cluster configuration. Shape your cluster configuration directly from Memphis GUI.
  • Attach schema to a station using the SDKs.
  • HTTP proxy. Generate access tokens with a dynamic expiration time.
  • Ability to filter system logs by type.


  • Improved broker memory utilization.
  • Improved real-time GUI rendering.
  • Broker performance improvements.
  • Node.js SDK (0.4.8)
  • Go SDK (0.1.8)
  • Python SDK (0.2.7)

Fixed bugs

  • Air-gapped environments - Broken links in the GUI might appear - fixed.
  • When sending messages to a deleted station via the HTTP proxy, an error returned “Memphis: no responders available for request” - fixed
  • Async produce didn’t work in Python SDK - fixed

Known issues

  • Authentication - Application-type users connect with Memphis (via the SDKs) using a connection token. For now, this token is constant and randomly generated per Memphis deployment.
  • While using an older SDK version, an error message appears on the station overview page saying “Error while getting notified about a poison message: Missing mandatory message headers.”
  • When storage capacity reaches 100%, Memphis GUI becomes unresponsive till cleaned up by at least 10%.
  • Stations/producers/consumers might appear without the user who created them.
  • Resending/dropping a great amount of dead-letter messages can significantly take time.
  • RAFT-related logs content is being trimmed.
Last modified 10mo ago