diff --git a/Cargo.lock b/Cargo.lock
index 29bd97a..e3a4144 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1392,7 +1392,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "eframe",
  "egui",
@@ -1408,7 +1408,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-calc"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-core",
  "gridcraft-formula",
@@ -1420,7 +1420,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-chart"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-calc",
  "gridcraft-core",
@@ -1431,7 +1431,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-cli"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-engine",
  "gridcraft-mcp",
@@ -1441,7 +1441,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-core"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "serde",
  "serde_json",
@@ -1450,7 +1450,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-engine"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-calc",
  "gridcraft-chart",
@@ -1470,7 +1470,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-formula"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-core",
  "serde",
@@ -1479,7 +1479,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-functions"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-core",
  "regex",
@@ -1487,7 +1487,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-mcp"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-engine",
  "log",
@@ -1496,7 +1496,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-model"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-core",
  "gridcraft-formula",
@@ -1507,18 +1507,18 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-numfmt"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-core",
 ]
 
 [[package]]
 name = "gridcraft-pdf"
-version = "0.3.0"
+version = "0.4.0"
 
 [[package]]
 name = "gridcraft-ui-egui"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "egui",
  "egui_kittest",
@@ -1533,7 +1533,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-web"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "eframe",
  "egui",
@@ -1550,7 +1550,7 @@ dependencies = [
 
 [[package]]
 name = "gridcraft-xlsx"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-core",
  "gridcraft-formula",
@@ -4287,7 +4287,7 @@ checksum = "e450f9b2ed1dff33c94c12589a87338689467b9c4f5d8a5710bd09a847d2c8a7"
 
 [[package]]
 name = "xtask"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "gridcraft-engine",
  "serde_json",
diff --git a/Cargo.toml b/Cargo.toml
index 89f268e..a1ce6a5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ members = ["crates/*", "apps/*", "xtask"]
 default-members = ["crates/*", "apps/gridcraft", "apps/gridcraft-cli", "xtask"]
 
 [workspace.package]
-version = "0.3.0"
+version = "0.4.0"
 edition = "2024"
 license = "MIT OR Apache-2.0"
 rust-version = "1.90"
diff --git a/contributors/contributors.json b/contributors/contributors.json
index 10cba05..d338d16 100644
--- a/contributors/contributors.json
+++ b/contributors/contributors.json
@@ -2,23 +2,49 @@
   "schema": 1,
   "repo": "storytold/gridcraft",
   "branch": "main",
-  "head": "a60bd2f40edae13197965ded9433dcf276caca45",
-  "head_date": "2026-10-07T18:45:37Z",
-  "commits": 16,
+  "head": "51b531be3e8b3f5a19d2b7714a4780a79569ca92",
+  "head_date": "2026-10-08T13:12:32Z",
+  "commits": 24,
   "unattributed_commits": 0,
   "contributors": [
     {
       "login": "echelon",
       "people_entry": true,
       "github_name": null,
-      "prs": 1,
-      "commits": 16,
-      "lines_added": 78054,
-      "lines_deleted": 3954,
+      "prs": 4,
+      "commits": 21,
+      "lines_added": 79088,
+      "lines_deleted": 3997,
       "binary_added": 35,
       "binary_deleted": 12,
       "first_commit": "2026-10-06T02:09:42Z",
-      "last_commit": "2026-10-07T18:45:37Z"
+      "last_commit": "2026-10-08T13:50:17Z"
+    },
+    {
+      "login": "h-a-n-a-s-h-i",
+      "people_entry": false,
+      "github_name": null,
+      "prs": 0,
+      "commits": 2,
+      "lines_added": 34,
+      "lines_deleted": 34,
+      "binary_added": 0,
+      "binary_deleted": 0,
+      "first_commit": "2026-10-08T12:13:30Z",
+      "last_commit": "2026-10-08T14:02:29Z"
+    },
+    {
+      "login": "XusBadia",
+      "people_entry": false,
+      "github_name": null,
+      "prs": 1,
+      "commits": 1,
+      "lines_added": 244,
+      "lines_deleted": 1,
+      "binary_added": 2,
+      "binary_deleted": 0,
+      "first_commit": "2026-10-08T13:12:32Z",
+      "last_commit": "2026-10-08T13:12:32Z"
     }
   ],
   "models": [
@@ -27,9 +53,9 @@
       "company": "Anthropic",
       "model": "Claude Opus",
       "version": "5.5",
-      "commits": 15,
-      "lines_added": 78047,
-      "lines_deleted": 3954
+      "commits": 23,
+      "lines_added": 79359,
+      "lines_deleted": 4032
     }
   ]
 }