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We encourage you to use the release https://distarchive.apache.org/repos/dist/release/CarbonDatacarbondata/2.1.0/, and feedback through the CarbonData user mailing lists!
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Updating and Deleting rows is now supported from carbondata SDK.
Support array<string> complex type with Secondary Index
Secondary Index can now be created on an array<string> data type to accelerate queries which have an array_contains filter. Data would be stored in a flattened format in Secondary Index for the array cloumn.
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Implementing a new Reindex command to repair the missing SI Segments
Support a separate SQL reindex command(reindex [index_table] on table maintable) to call the SI repair logic without load/insert.
Support order limit by push down for secondary index queries
Improve SI scan time by reducing output size by pushing down limit and order by when Limit is present and order by column and all the filter column is SI column.
Please find the detailed JIRA list here.