Search Services 1.1.0 is now available, here's a summary of what's changed. As ever, please let me know if you have any questions or you would like to give us any feedback.
New Search REST API Features
We have added support for new features in the search API. These come from feedback we received from the first release of the Search REST API with 5.2 and have added new capabilities to support more advanced reporting requirements.
NB You will need either Community 201707 or the upcoming 5.2.1 release to take advantage of these.
We have added a new sharding method for Enterprise customers with a clustering license: DBID range sharding.
This will be the only option to offer any kind of auto-scaling as opposed to defining your shard count exactly at the start. The other sharding methods require repartitioning in some way.
For each shard you specify the range of DBIDs to be included. As your repository grows you can add shards. Look out for an upcoming blog post from search architect, Andy Hind explaining more about the differences between the different sharding methods.