1. Enhancements

IEx

• [IEx] Optimize autocompleting modules

2. Bug fixes

Elixir

• [Enum] Fix Enum.slice/2 for ranges with step > 1 sliced by step > 1
• [File] Preserve directory permissions in File.cp_r/3
• [File] Fix File.cp_r/3 infinite loop with symlink cycles
• [File] Fix File.cp_r/3 infinite loop when copying into subdirectory of source
• [File] Warn when defining @type record(), fixes CI on Erlang/OTP 29
• [File] Fix File.Stream Enumerable.count for files without trailing newline
• [Float] Fix Float.parse/1 inconsistent error handling for non-scientific notation overflow
• [Kernel] Process fields even when structs are unknown (regression)
• [Kernel] Improve performance on several corner cases in the type system (regression)
• [Kernel] Fix regression when using Kernel.in/2 in defguard (regression)