I'm pleased to announce the first general release of a beta for injest - a library for combining transducers with the semantics of thread-last forms. injest lowers the bar to high performance in Clojure and ClojureScript. The initially available features are: • Path Threads: Navigate into data like you would with keywords, but with strings, numbers and functions • Auto Transducification: Automatically turn sequence functions in a thread-last into transducers, comping together contiguous ones • Auto Parallelization: (only in CLJ, not CLJS) In addition to the above, comp parallel transducers into their own function, run on r/fold's fork/join pool • Extension: Add non-core transducers to the injest with reg-xf! and reg-pxf!, for single threaded and parallel transducers, respectively • Profiling: Require in from injest.report.path and get a report showing you a performance comparison of all the macro variants at a given line and column for each call-site at runtime (only in CLJ, not CLJS yet) Thanks to everyone who gave feedback on the road to getting this to beta. https://github.com/johnmn3/injest A short video introduction is available as part of the re:Clojure Data Science Special: https://www.youtube.com/watch?v=GNncKCKHEI4 workshop.