description
Release date: 21 February 2023

v0.4.5 - beta

Upgrade procedure for production users (Kubernetes deployments)

{% content-ref url="../../open-source-installation/kubernetes/how-to-upgrade.md" %} how-to-upgrade.md {% endcontent-ref %}

{% hint style="warning" %} Please make sure your SDKs are updated to the latest version to enjoy new features {% endhint %}

Added features

Tiered storage - second storage class for out-of-retention messages to enable a better cost-efficient and longer message retention.
Station name length increased to 128 characters.
Throughput visualization has improved.
Datadog integration has been added to enable external monitoring over Memphis.
Grafana integration has been added to enable external monitoring over Memphis.
http proxy Renamed to rest gateway to make the comoponent more understandable for new users.
Ability to produce message without creating an explicit producer object (Available in Go/Python/Node.js SDKs)
Memphis configuration - ability to configure host names for display purposes
Broker performance improvements.
Node.js SDK (0.5.1) Go SDK (0.2.1) Python SDK (0.3.2)

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%.
Resending/dropping a great amount of dead-letter messages can significantly take time.