Temporary notes about the recent changes in Zig 0.15 using std.Io

zig-0.15-changes.md

Zig 0.15 rework

• zig 0.15.1 released
  • still some bugs
  • wait for 0.15.2
• new Io for async prog
• rework in progress in Writer/Reader

Here's the version I use and recommend if you want to play with Futures

zig version

• official zig 0.15.1
  • brew version checked
• 0.15.0-dev.1404+65db19a28 (compiled on 2025-08-04)
  • commit: 65db19a289f39bf3d0703164966eaeadb51cabab
• WIP:
  • 0.16.0-dev.23+47a2f2dda
    • commit: 47a2f2ddae9cc47ff6df7a71060bbb3f5f20f2e8
    • seems to fix a bug with std.http.Client

zls version

• 0.15.0-dev.347+ad5df4a0 (on 2025-08-05)
  • commit: ad5df4a03f015ae588a3dacb3bc403918b650cf2
    • older versions: 9c14baf
  • checked
    • type definitions
    • signature
    • diagnostics
    • inlay hint
    • hover
    • completions
    • rename symbol
    • formatting
    • unique code action (!)
• tested with Neovim 0.11
  • vim.lsp.enable("zls")
  • if you don't use nvim-lspconfig like me, add lsp/zls.lua inside your config root vim.fn.stdpath[[data]]:

return {filetypes = {"zig", "zir"}, cmd = {"zls"}, root_markers = {"zls.json", "build.zig", ".git"}, workspace_required = false}

• WIP:
  • 0.15.0-dev.384+e0ae13c5 with zig 0.16-dev