New Features
Model Management
Support updating aliases for model versions #6814,#7158
Add file viewer support for Filesets #6860
Implement ListFilesEvent in FilesetEventDispatcher #7314
Support setOwner/getOwner event operations #7646
Trino Connector
Auto-load multiple metalakes in Trino connector #7288
JDBC Validation
Validate JDBC URLs during store initialization #7547
Bug Fixes
Core & Catalogs
Fix H2 backend file lock issues during deletion #7406
Prevent SQL session commit errors #7403
Correct OAuth token refresh in web UI #7426
Validate namespace string conversions #7516
Improve server force-kill shutdown logic #7513
Fix bypass key handling in Hive catalog #7416
Filter empty Hadoop storage locations #7190
Fix model catalog error messages #7346
Connectors
Spark Connector
Remove conflicting slf4j dependency #7287
Fix S3 credential test errors #7432
Trino Connector
Handle unsupported catalog providers #7322
Python Client
Fix storage handler mappings for S3/OSS/ABS #7225
Improve Java client error messages #7344
Filesets
Fix multi-location file paths #7371
Improvements
Core & Catalogs
Optimize column deletion logic (#7415)(#7415)
Auto-register mappers via SPI #7529
Validate JDBC entity store URLs #7614
Fix catalog index existence checks #7660
CLI & Clients
Remove duplicate owner field in CLI #7639
URL-encode paths in Java client #7686
Testing
Refactor Hadoop catalog test stubbing #7280
Fix precondition message mismatches #7521
Documentation
Add Trino REST catalog example #7121
Iceberg IRC guides for StarRocks/Doris #7368
OpenAPI specs for Fileset/File #6860
Fix access control docs #7195
Update model privilege docs #7555
Remove incubating status markers #7492
Add 0.9.1 release notes #7485
Build & Infra
Fix Helm chart versioning #7129, #7134
Upgrade Kyuubi dependency #7480
Credits
FANNG1
Abyss-lord
jerqi
jerryshao
slimtom95
flaming-archer
yunchipang
KyleLin0927
xiaozcy
diqiu50
yuqi1129
ziqiangliang
carl239
LauraXia123
guov100
senlizishi
fivedragon5
justinmclean
Jackeyzhe
Spiritedswordsman
su8y