backstage/.changeset/search-blankly-have-a-nice-life.md

@backstage/plugin-search-backend-node, @backstage/search-common

@backstage/plugin-search-backend-node	@backstage/search-common
minor	minor

BREAKING

The Backstage Search Platform's indexing process has been rewritten as a stream pipeline in order to improve efficiency and performance on large document sets.

The concepts of Collator and Decorator have been replaced with readable and transform object streams (respectively), as well as factory classes to instantiate them. Accordingly, the SearchEngine.index() method has also been replaced with a getIndexer() factory method that resolves to a writable object stream.

Check this upgrade guide for further details.