diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 84280cd..5e9b7da 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,6 @@ jobs:
   check:
     uses: fizzyedit/plugin-build-action/.github/workflows/check.yml@v7
     with:
-      zig-version: "0.16.0"
+      zig-version: "0.17.0"
     # secrets:
     #   build_env: ${{ secrets.MY_BUILD_ENV }}   # as in release.yml, if the build needs one
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index dab756a..0c266e1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -12,4 +12,4 @@ jobs:
     permissions:
       contents: write
     with:
-      zig-version: "0.16.0"
+      zig-version: "0.17.0"
diff --git a/.github/workflows/sdk-repin.yml b/.github/workflows/sdk-repin.yml
index e1a776c..28a0fd0 100644
--- a/.github/workflows/sdk-repin.yml
+++ b/.github/workflows/sdk-repin.yml
@@ -31,4 +31,4 @@ jobs:
     with:
       sdk-version: ${{ github.event.client_payload.version || inputs.sdk-version || '' }}
       force: ${{ inputs.force == true }}
-      zig-version: "0.16.0"
+      zig-version: "0.17.0"
diff --git a/build.zig.zon b/build.zig.zon
index eb7906a..f091a51 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -1,7 +1,7 @@
 .{
     .name = .zig,
     .version = "0.0.1",
-    .minimum_zig_version = "0.16.0",
+    .minimum_zig_version = "0.17.0",
     .paths = .{
         "build.zig",
         "build.zig.zon",
@@ -17,8 +17,8 @@
             // The published SDK, not a path into a checkout: a release has to build from a
             // clean clone, and the release asset (never the tag's git archive) is the SDK
             // package alone — the monorepo root zon carries the app's own dependencies.
-            .url = "https://github.com/fizzyedit/fizzy/releases/download/sdk-v0.2.29/fizzy-sdk-v0.2.29.tar.gz",
-            .hash = "fizzy-0.2.29-SGBwY2sxJgCLLSPt4HLdlMSg7WtcP4K0fdtXI5WwJl2d",
+            .url = "https://github.com/fizzyedit/fizzy/releases/download/sdk-v0.2.30/fizzy-sdk-v0.2.30.tar.gz",
+            .hash = "fizzy-0.2.30-SGBwY1QnJwDznUMVnSLATxXgH2e8_Vz7eMwLj9UQ0sVU",
         },
     },
 }
diff --git a/plugin.zig.zon b/plugin.zig.zon
index c949db8..1edf533 100644
--- a/plugin.zig.zon
+++ b/plugin.zig.zon
@@ -1,8 +1,8 @@
 .{
     .id = "zig",
     .name = "Zig",
-    .version = "0.2.36",
-    .min_sdk_version = "0.2.29",
+    .version = "0.2.37",
+    .min_sdk_version = "0.2.30",
     .description = "Zig language support for fizzy",
     .tags = .{ "zig", "language" },
     .author = "foxnne",
diff --git a/src/Lsp.zig b/src/Lsp.zig
index 73cce44..61a2de9 100644
--- a/src/Lsp.zig
+++ b/src/Lsp.zig
@@ -33,7 +33,7 @@ fn log(source: []const u8, level: std.log.Level, msg: []const u8) void {
 }
 
 fn currentEnviron() std.process.Environ {
-    if (builtin.os.tag == .windows) return .{ .block = .global };
+    if (builtin.target.os.tag == .windows) return .{ .block = .global };
     return .{ .block = .{ .slice = std.mem.span(@as([*:null]?[*:0]const u8, @ptrCast(std.c.environ))) } };
 }
 
@@ -48,7 +48,7 @@ fn tryDir(gpa: std.mem.Allocator, io: std.Io, dir: []const u8, exe_name: []const
 }
 
 fn findInPathList(gpa: std.mem.Allocator, io: std.Io, path_list: []const u8, exe_name: []const u8) ?[]const u8 {
-    const sep: u8 = if (builtin.os.tag == .windows) ';' else ':';
+    const sep: u8 = if (builtin.target.os.tag == .windows) ';' else ':';
     var it = std.mem.tokenizeScalar(u8, path_list, sep);
     while (it.next()) |dir| {
         if (tryDir(gpa, io, dir, exe_name)) |found| return found;
@@ -129,7 +129,7 @@ fn resolveExecutable(
     posix_name: []const u8,
     windows_name: []const u8,
 ) []const u8 {
-    if (builtin.os.tag == .windows) return windows_name;
+    if (builtin.target.os.tag == .windows) return windows_name;
 
     const exe_name = posix_name;
 
@@ -153,7 +153,7 @@ pub fn configure() void {
 
     // Deliberately no executable resolution here — see `ensureResolved`. `register(host)` runs
     // on fizzy's startup path, and everything in it is time the window doesn't appear.
-    command_buf[0] = if (builtin.os.tag == .windows) "zls.exe" else "zls";
+    command_buf[0] = if (builtin.target.os.tag == .windows) "zls.exe" else "zls";
 
     // Reserve the key now so `ensureResolved` can fill it in by mutating the value *in place*.
     // `Client.Config` stores `initialization_options` by value, and a `std.json.ObjectMap` copy