Deprecations and Removals

Every Fusion release adds or improves Fusion features and functionality. Occasionally, we also remove features and functionality. Before doing so, we “deprecate” them. Deprecated features are no longer officially supported by Lucidworks and will not be updated or maintained. In many cases, new features are introduced which replace and/or improve the functionality of the deprecated feature.

How long do I have before the feature is removed?

Fusion is versioned by major (5.0.0), minor (5.1.0), and maintenance (5.1.1) release versions. We give a minimum of one minor release cycle before removing a deprecated feature. For example:

  • A feature is deprecated in Fusion 5.2.0, so it will not be removed before Fusion 5.3.0

  • A feature is deprecated in Fusion 5.2.1, so it will not be removed before Fusion 5.3.0

Note
Deprecations are typically made in major and minor releases only. Maintenance release deprecations are less common.

Active Deprecations

The expected removal versions listed in the Active Deprecations table below may not correspond to a planned release version. Removals take place on or after the expected removal version. If the expected removal is listed as 5.2.2, but Fusion 5.2.2 is not a planned release, the removal may take place in Fusion 5.3.0.

Feature Deprecated Expected Removal Notes

5.3.0

5.4.0

Use JDBC V2 instead.

5.2.0

5.3.0

-

The Blob Store’s searchable aspects

5.2.0

5.3.0

-

MLeap in Machine Learning models

5.2.0

5.3.0

-

MLeap deployments of SpaCy and SparkNLP

5.2.0

5.3.0

5.2.0

5.3.0

Use the Query-to-Query Session-Based Similarity jobs instead, which provides better performance and query coverage.

5.2.0

5.3.0

Use the experimental BPR Recommender job instead, which provides better results with a shorter running time.

5.2.0

5.3.0

Use the new Classification job instead, which provides more options and better logging.

5.2.0

5.3.0

Use the new Classification job instead, which provides more options and better logging.

5.2.0

5.3.0

-

5.2.0

5.3.0

Deprecated in favor of new forthcoming Seldon Core functionality

5.2.0

5.3.0

Deprecated in favor of new forthcoming Seldon Core functionality

5.2.0

5.3.0

Deprecated in favor of new forthcoming Seldon Core functionality

Connector fetcher AccessControlFetcher.

5.1.2

5.2.2

Use ContentFetcher instead.

Messaging Stage Configs

5.1.2

5.2.2

-

Helm chart variable solrAutocalingPolicyJson for fusion-admin

5.1.2

5.2.2

Use solrAutoscalingPolicyJson instead. Update any custom values files that reference this variable.

Webapps API

4.2.0

4.3.0

4.0.2

4.1.2

Experiments API

4.0.0

4.1.0

Experiments are now managed through the /spark endpoints.

Aggregator API

4.0.0

4.1.0

Aggregations are now managed through the /spark endpoints.

Removals

Feature Removed Notes

Javascript Connector

5.3.0

Use Index Pipeline to fetch content.

Solr Clusters UI panel

5.3.0

-

Co-occurrence Similarity Jobs

5.2.0

-

Collection Analysis Jobs

5.2.0

-

Item Similarity Recommender Jobs

5.2.0

-

Legacy Item Recommender Jobs

5.2.0

-

Legacy Item Similarity Jobs

5.2.0

-

Levenshtein Spell Checking Jobs

5.2.0

-

Matrix Decomposition-Based Query-Query Similarity Jobs

5.2.0

-

SQL-Based Experiment Metric Jobs

5.2.0

-

Statistically Interesting Phrases Jobs

5.2.0

-

Push connector

5.1.3

Access the index endpoints directly.

REST API endpoint /api/apollo/.

5.2.0

Use endpoint /api/ instead.

The Cluster, Hosts, Services, and Datasources dashboards (DevOps center)

5.0.1

-

Heartbeat Data Service

5.0.0

-

System Dashboard

5.0.0

-

Admin webapps

5.0.0

-

/blobs/{id}/manifest endpoint

4.0.0

-

Synonyms API

4.0.0

-