v0.0.0.9004

New features

• For supervised UMAP with numeric y, you may pass nearest neighbor data
  directly, in the same format as that supported by X-related nearest neighbor
  data. This may be useful if you don't want to use Euclidean distances for
  the y data, or if you have missing data (and have a way to assign nearest neighbors
  for those cases, obviously). See the Nearest Neighbor Data Format section for details.

v0.0.0.9003

New features

• New parameter ret_nn: when TRUE returns nearest neighbor matrices
  as a nn list: indices in item idx and distances in item dist. Embedded
  coordinates are in embedding. Both ret_nn and ret_model can be TRUE,
  and should not cause any compatibility issues with supervised embeddings.
• nn_method can now take precomputed nearest neighbor data. Must be a list of
  two matrices: idx, containing integer indexes, and dist containing
  distances. By no coincidence, this is the format return by ret_nn.

Bug fixes and minor improvements

• Embedding to n_components = 1 was broken (#6)
• User-supplied matrices to init parameter were being modified, in defiance of basic R pass-by-copy semantics.

v0.0.0.9002

Better late then never, I will start creating releases, this one back-dated to the middle of August.

• metric = "cosine" is working again for n_threads greater than 0 (#5)