1.4

Reading now happens on a separate thread, writing to a queue (of configurable size). You can have N (configurable) threads writing to Solr.

1.3

Added support for selecting shards via sourceShards. This allows parallelizing reindexing.

1.2

Fixes #2
Fixes a bug where we required Java 16. Now it should work on Java 11.

1.1

Allows reindexing to happen between two different Solr clusters.

1.0

Initial release.