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Chapter 6: Upgrade Planning
Compatibility of Configuration API Applications to the Directory Service
Configuration API applications must be the same major.minor version as the Directory
Service the application wants to update.
Compatibility of Sonic JNDI API Applications to the Directory Service
Applications that use the JNDI API from 7.5 and 7.6 can access a 8.5 Directory Service
but the 8.5 JNDI API cannot access older Directory Service versions.
JNDI API Version Directory Service Version Supported?
Earlier than 7.5 8.5 No
7.5 through 8.5 8.5 Yes
8.5 Earlier than 8.5 No
Compatibility of Sonic Management API Applications to Containers
Versions of the management runtime APIs can interact with corresponding supported
container versions in the Directory Service. The older versions are limited to the Runtime
API’s functionality and the 8.5 Runtime API can only use functionality in each older
version container.
Compatibilities of Brokers
Compatibility Between Clustered Brokers
Broker Version Broker Version Supported?
Earlier than 7.5 8.5 No
7.5 through 7.6.n 8.5 Limited **
8.5 8.5 Yes
**Limited Support — Clustered brokers can take advantage of Sonic’s Zero-Downtime
feature so that a cluster run non-stop while you upgrade the member brokers. For clusters
of brokers as far back as version 7.5, you can stop a cluster member, upgrade it to 8.5, and
then restart it. The cluster will run with mixed versions during the upgrade process. Do
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