Vu 0.3.0

0.3.0 (2026-10-31): rounds 25 to 30. The first release with prebuilt binaries (Linux x86-64
and ARM64, and macOS on Apple silicon, all three tested in CI on every push), an installer
(curl -fsSL https://vulang.org/install | sh) and a Homebrew formula. For backends: vu new app
and vu new api write an app with accounts on PostgreSQL, ready for Railway; the standard library
gained auth (Django-compatible password hashes, sessions, CSRF), jobs (background jobs in
PostgreSQL), migrate, stripe, s3, mail (SMTP and Resend), ai (Anthropic and OpenAI, with
streaming), server-sent events, CORS, rate limits and metrics in web; and pg gained connection
pools, transactions, rows read into structs (query_as), COPY and LISTEN/NOTIFY, reading 200,000
rows 2.6 times faster than asyncpg. MCP servers in Vu, each checked answer by answer against the
reference server: filesystem, time, fetch, git and sqlite, with the modules they needed (dir
folders as capabilities, mcp, stdio, json). Builds: an edited 20,000-line program rebuilds in
0.83 s (split, cached C), vu build --lib makes shared libraries, and lists pass to C as pointers.
The language: else after a call that sets a value or returns nothing, function values with var
parameters, and ? inside a call's own arguments. Changes that can break 0.2.0 code:
http.Request has a peer field (a Request built by hand needs one more argument, "").

Install

curl -fsSL https://vulang.org/install | sh

or brew tap vu0tran/vu https://github.com/vu0tran/vu && brew install vu0tran/vu/vu. Archives for Linux x86-64, Linux ARM64 (glibc 2.34 or later) and macOS on Apple silicon; check them against SHA256SUMS.