Dirk Eddelbuettel: RcppAnnoy 0.0.23 on CRAN: Several Updates

A new release, now at version 0.0.22, of RcppAnnoy
has arrived on CRAN, just a
little short of two years since the previous release.

RcppAnnoy
is the Rcpp-based R integration of
the nifty Annoy library
by Erik Bernhardsson. Annoy is a small and
lightweight C++ template header library for very fast approximate
nearest neighbours—originally developed to drive the Spotify music discovery algorithm. It
had all the buzzwords already a decade ago: it is one of the algorithms
behind (drum roll …) vector search as it finds
approximate matches very quickly and also allows to
persist the data.

This release contains three contributed pull requests covering a new
metric, a new demo and quieter compilation, some changes to
documentation and last but not least general polish including letting
the vignette now use the Rcpp::asis builder.

Details of the release follow based on the NEWS file.

Changes in version 0.0.23
(2026-01-12)

• Add dot product distance metrics (Benjamin James in #78)

• Apply small polish to the documentation (Dirk closing #79)

• A new demo() has been added (Samuel Granjeaud in #79)

• Switch to Authors@R in DESCRIPTION

• Several updates to continuous integration and README.md

• Small enhancements to package help files

• Updates to vignettes and references

• Vignette now uses Rcpp::asis builder (Dirk in #80)

• Switch one macro to a function to avoid a compiler nag (Amos
  Elberg in #81)

Courtesy of my CRANberries, there
is also a diffstat report for this
release.

This post by Dirk
Eddelbuettel originated on his Thinking inside the box
blog. If you like this or other open-source work I do, you can sponsor me at
GitHub.