neorepl 0.4 came out last week, and since I never got around to writing about 0.2 and 0.3, it feels like a good moment to look back at what happened since the original announcement. Three releases in two weeks, and neorepl now has most of what I listed under “What’s next” back then - a test runner, a full-screen inspector and stacktrace browser, an MCP server and a skill for coding agents - plus a few things that weren’t on the list at all, like tracing and peeking into your coding agent’s REPL session.