setNumThreads method if using the object-based API, and the n_threads parameter in the hnsw_* function API. For finer control, a setGrainSize and grain_size option is also available in the object and function interface respectively. Thank you to Dmitriy Selivanov for a lot of the work on this.verbose = TRUE now has incurs substantially less computational overhead associated with calculating the progress bar. Thank you to Samuel Granjeaud for spotting the problem and coming up with various solutions.progress. By default this is set to "bar" and will show the progress bar when verbose = TRUE. If you want a more terse output, set progress = NULL. progress = NULL will eventually be the default setting: for now, verbose = TRUE will get you the progress bar by default for backwards compatibility.markDeleted, that will remove an object from being retrieved from the index.resizeIndex, that allows the index to be increased without having to save and reload the index.size is available for the index objects and reports the number of items added to the index.hnsw_search would stop if the number of rows in the input matrix was smaller than k. This check has been removed. Note that the correct behavior is to ensure that k is smaller than or equal to index$size() where index is the index you are searching. Because the size() method is new to this version, to preserve compatibility with old indexes, this check hasn’t been added to hnsw_search. If this matters to you, manually compare index$size() with k before running hnsw_search. An error will be thrown if k neighbors can’t be found in the index. Thank you to Yuxing Liao for spotting this and the pull request to remove the check.Initial release.