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Version: 8.5

Update 8.1 to 8.2

Intermediate

The following sections explain which adjustments must be made to migrate from Camunda 8.1.x to 8.2.0 for each component.

Zeebe​

New configuration for disk usage​

A new configuration for tuning disk usage is added. The old configurations are still accepted, but they are deprecated. We recommend using the new configuration.

Changes to default backpressure​

The default backpressure algorithm changed from Vegas to additive-increase/multiplicative-decrease (AIMD).

note

This may change the performance characteristics. If you have tuned your system for specific latency or throughput, we recommend you reevaluate with the new version.

Spring Boot 3.0 - URL Matching Changes​

Zeebe now uses Spring Boot 3.0, which comes with a breaking change regarding trailing slash URL matching. This only applies to the Actuator endpoints such as the Management API and the Backup API, as well as to the health status endpoints. Ensure you remove any trailing slashes when you access these endpoints, otherwise you will encounter a 404 - Not Found error.

The gRPC API is not affected by this change.

AWS S3 Backup store connectivity​

Zeebe uses an updated version of the AWS S3 client which automatically chooses between path-style and virtual-hosted-style access. If your S3 backup store does not support virtual-hosted-style access and the client fails to detect this, Zeebe will not connect to S3 and backups are not usable.

Self-managed deployments that use MinIO as an S3 compatible backup target might need to force path-style access. You can use a new configuraton setting to always force path-style access: ZEEBE_BROKER_DATA_BACKUP_S3_FORCEPATHSTYLEACCESS.

Operate​

  • It is recommended to follow a sequential update path when updating to version 8.2. For example, if running on version 8.0, first update to 8.1, then update to 8.2.
  • Migration of data during the version 8.2 update could take longer than previous versions, especially for datasets containing a large amount of incidents data.
  • Operate now uses Spring Boot version 3.0. Therefore, URLs with a trailing slash will fail with an HTTP status 404.

Identity​

A new feature for Identity has been added called resource authorizations. By default, this feature is disabled. To learn more about this feature see the resource authorizations concepts page.

Tasklist​

  • New configuration is required to enable the Tasklist Process page:
    • CAMUNDA_TASKLIST_IDENTITY_BASEURL environment variable should be configured to your Identity host.
    • CAMUNDA_TASKLIST_IDENTITY_RESOURCE_PERMISSIONS_ENABLED environment variable should be set to true or false (default). This configures Tasklist to use authorizations from Identity.
      • To enable this variable in Tasklist, resource authorizations must be enabled in Identity.
      • If CAMUNDA_TASKLIST_IDENTITY_RESOURCE_PERMISSIONS_ENABLED is set to true, you must configure CAMUNDA_TASKLIST_IDENTITY_BASEURL. Otherwise, Tasklist will not be able to reach Identity.
  • Tasklist now uses Spring Boot version 3.0. Therefore, URLs with a trailing slash will fail with an HTTP status 404.