Haskell Weekly Issue 527 covers a range of community content including tutorials on monads and concurrency, progress on GHC dependent types (Part 5), a deep dive into optimizing the ApplicativeDo algorithm using biology-inspired techniques, a DoS vulnerability in the aeson and text-iso8601 packages, the first release candidate for Stack 3.11.1, OpenTelemetry 1.0 for Haskell, mutation testing support in sydtest, and a new library for writing JVM bytecode from Haskell.
32 Impressions