--- name: WhatsNew-2.0 route: /WhatsNew-2.0 menu: Downloads submenu: Whats New --- # What's new in Apache Atlas 2.0? ## Features * Soft-reference attribute implementation. * Unique-attributes constraint at graph store-level * Atlas Index Repair tool for Janusgraph * Relationship notifications when new relationships are created in atlas * Atlas Import Transform handler implementation ## Updates * Updated component versions to use Hadoop 3.1, Hive 3.1, HBase 2.0, Solr 7.5 and Kafka 2.0 * Updated JanusGraph version to 0.3.1 * Updated authentication to support trusted proxy * Updated patch framework to persist typedef patches applied to atlas and handle data patches. * Updated metrics module to collect notification metrics * Updated Atlas Export to support incremental export of metadata. * Notification Processing Improvements: * Notification processing to support batch-commits * New option in notification processing to ignore potentially incorrect hive_column_lineage * Updated Hive hook to avoid duplicate column-lineage entities; also updated Atlas server to skip duplicate column-lineage entities * Improved batch processing in notificaiton handler to avoid processing of an entity multiple times * Add option to ignore/prune metadata for temporary/staging hive tables * Avoid unnecessary lookup when creating new relationships * UI Improvements: * UI: Display counts besides the Type and Classification dropdown list in basic search * UI: Display lineage information for process entities * UI: Display entity specific icon for the lineage graph * UI: Add relationships table inside relationships view in entity details page. * UI: Add service-type dropdown in basic search to filter entitydef type. * Various Bug-fixes and optimizations * <a href="https://issues.apache.org/jira/issues/?jql=project%20%3D%20ATLAS%20AND%20status%20%3D%20Resolved%20AND%20fixVersion%20%3D%202.0.0%20ORDER%20BY%20updated%20DESC%2C%20priority%20DESC">List of JIRAs resolved in Apache Atlas 2.0.0</a> ## Data Migration With the introduction of unique-attributes constraint at graph store changes - when atlas starts up for the first time after migration to 2.0, expect some delay during startup since unique attribute constraint will be added to existing atlas metadata.