Product notes
Product updates, new challenges, and improvements, newest first.
A Redis walkthrough in Gleam
A Redis-in-Gleam walkthrough joined the Screencasts tab, later retired in March 2026.
Navigate concepts with the keyboard
Concepts gained keyboard navigation and backward steps during questions; answer shortcuts followed in May.
Ruby for HTTP and DNS
HTTP and DNS server support completed Ruby coverage across the challenges available at the time.
Build Redis in Scala
The Redis challenge added Scala support.
Delete your own account
Learners gained a self-service option to delete their account.
C# for Git and Grep
The Git and Grep challenges added C# support.
More language setup guides
Setup guides arrived for Rust and Python, with C#, JavaScript, TypeScript and Ruby following through May.
Test status beside your current stage
A persistent test-runner card showed how to run tests and the current result.
Clearer setup commands on Windows
Copyable command blocks made individual commands easier to follow, including in PowerShell.
Build Redis in Gleam
The Redis challenge added Gleam support.
More HTTP server walkthroughs
HTTP server walkthroughs joined the Screencasts tab, which was later retired in March 2026.
A forum with CodeCrafters sign-in
Discuss challenges in the community forum using your CodeCrafters account.
Reading is good.
Doing is better.
Build your own Claude Code, Shell, or SQLite. Understand what’s underneath.