[pull] main from fern-api:main

.gitignore

@@ -111,6 +111,7 @@ seed/**/.pytest_cache/
 seed/**/.mypy_cache/
 seed/**/.ruff_cache/
 seed/**/*.egg-info/
+seed/**/.golangci.yml
 
 # Seed remote-local test outputs, except for seed.yml files
 seed-remote-local/*
@@ -119,5 +120,9 @@ seed-remote-local/*
 # Test logs from test-remote-local.sh
 test-remote-local-logs-*/
 
+# macOS system dirs leaked by local Poetry/Python execution
+seed/**/Library/Application Support/
+seed/**/Library/Caches/
+
 # Devbox gradle properties
 /gradle.properties

devbox.json

@@ -8,10 +8,9 @@
     "poetry@1.8",
     "jdk@17",
     "gradle@8.5",
-    "ruby@3.3",
+    "ruby@3.4",
     "rubocop@latest",
     "php@8.4",
-    "php84Packages.composer@2.7",
     "rustup@latest",
     "ruff@0.15",
     "buf@1.50.0",
@@ -28,10 +27,17 @@
       "printf '\\033]0;%s\\007' 'fern (devbox)'",
       "unset GOROOT # Unset GOROOT from parent shell to avoid conflicts with devbox's Go",
       "export PATH=\"$(go env GOPATH)/bin:$PATH\"",
+      "command -v golangci-lint &>/dev/null || { echo 'Installing golangci-lint...'; go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.10.1 2>/dev/null || true; }",
+      "mkdir -p \"$HOME/.local/bin\"",
+      "if [ ! -f \"$HOME/.local/bin/composer\" ]; then echo 'Installing composer...'; curl -sSL https://getcomposer.org/download/latest-2.x/composer.phar -o \"$HOME/.local/bin/composer\" && chmod +x \"$HOME/.local/bin/composer\"; fi",
+      "if [ ! -f \"$HOME/.local/bin/php-cs-fixer\" ]; then echo 'Installing php-cs-fixer...'; curl -sSL https://cs.symfony.com/download/php-cs-fixer-v3.phar -o \"$HOME/.local/bin/php-cs-fixer\" && chmod +x \"$HOME/.local/bin/php-cs-fixer\"; fi",
+      "export PATH=\"$HOME/.local/bin:$PATH\"",
+      "if [ -f /usr/bin/xcrun ]; then mkdir -p \"$HOME/.local/bin\" && ln -sf /usr/bin/xcrun \"$HOME/.local/bin/xcrun\"; fi # Use system xcrun instead of nix xcbuild",
       "rustup default stable 2>/dev/null || true",
       "rustup component add rustfmt 2>/dev/null || true",
       "bash scripts/setup-dotnet.sh 2>/dev/null || true",
-      "export PATH=\"$HOME/.dotnet:$PATH\"",
+      "export DOTNET_ROOT=\"$HOME/.dotnet\"",
+      "export PATH=\"$HOME/.dotnet:$HOME/.dotnet/tools:$PATH\"",
       "echo 'Node.js:' $(node --version)",
       "echo 'pnpm:' $(pnpm --version 2>/dev/null || echo 'not available')",
       "echo 'Go:' $(go version)",

devbox.lock

@@ -483,54 +483,6 @@
         }
       }
     },
-    "php84Packages.composer@2.7": {
-      "last_modified": "2024-10-02T21:32:52Z",
-      "resolved": "github:NixOS/nixpkgs/fd698a4ab779fb7fb95425f1b56974ba9c2fa16c#php84Packages.composer",
-      "source": "devbox-search",
-      "version": "2.7.9",
-      "systems": {
-        "aarch64-darwin": {
-          "outputs": [
-            {
-              "name": "out",
-              "path": "/nix/store/nh3pqv4bsgivzvmc919sqvv8km265c77-composer-2.7.9",
-              "default": true
-            }
-          ],
-          "store_path": "/nix/store/nh3pqv4bsgivzvmc919sqvv8km265c77-composer-2.7.9"
-        },
-        "aarch64-linux": {
-          "outputs": [
-            {
-              "name": "out",
-              "path": "/nix/store/iardqmy3i0cy4l9r045p7g5qb9dca8p9-composer-2.7.9",
-              "default": true
-            }
-          ],
-          "store_path": "/nix/store/iardqmy3i0cy4l9r045p7g5qb9dca8p9-composer-2.7.9"
-        },
-        "x86_64-darwin": {
-          "outputs": [
-            {
-              "name": "out",
-              "path": "/nix/store/x6z4hy24dn5l9inqcs4a5wm5layiil67-composer-2.7.9",
-              "default": true
-            }
-          ],
-          "store_path": "/nix/store/x6z4hy24dn5l9inqcs4a5wm5layiil67-composer-2.7.9"
-        },
-        "x86_64-linux": {
-          "outputs": [
-            {
-              "name": "out",
-              "path": "/nix/store/9ajnzd7i6ywxv7mav92032iryrc4jm0g-composer-2.7.9",
-              "default": true
-            }
-          ],
-          "store_path": "/nix/store/9ajnzd7i6ywxv7mav92032iryrc4jm0g-composer-2.7.9"
-        }
-      }
-    },
     "php@8.4": {
       "last_modified": "2026-03-21T07:29:51Z",
       "plugin_version": "0.0.3",
@@ -750,68 +702,68 @@
         }
       }
     },
-    "ruby@3.3": {
-      "last_modified": "2026-01-23T17:20:52Z",
+    "ruby@3.4": {
+      "last_modified": "2026-03-21T07:29:51Z",
       "plugin_version": "0.0.2",
-      "resolved": "github:NixOS/nixpkgs/a1bab9e494f5f4939442a57a58d0449a109593fe#ruby",
+      "resolved": "github:NixOS/nixpkgs/09061f748ee21f68a089cd5d91ec1859cd93d0be#ruby",
       "source": "devbox-search",
-      "version": "3.3.10",
+      "version": "3.4.8",
       "systems": {
         "aarch64-darwin": {
           "outputs": [
             {
               "name": "out",
-              "path": "/nix/store/d9wal8y7w1zpvyas3x1q4ykz880mmklk-ruby-3.3.10",
+              "path": "/nix/store/88sazm3fj9kabg4pxmnjc53cx0syp8fk-ruby-3.4.8",
               "default": true
             },
             {
               "name": "devdoc",
-              "path": "/nix/store/1rfqp0848j3gnm222ls3bipk1azcrrq3-ruby-3.3.10-devdoc"
+              "path": "/nix/store/mk7a50jsk138apqrnlzc077cik8cr47m-ruby-3.4.8-devdoc"
             }
           ],
-          "store_path": "/nix/store/d9wal8y7w1zpvyas3x1q4ykz880mmklk-ruby-3.3.10"
+          "store_path": "/nix/store/88sazm3fj9kabg4pxmnjc53cx0syp8fk-ruby-3.4.8"
         },
         "aarch64-linux": {
           "outputs": [
             {
               "name": "out",
-              "path": "/nix/store/1hlahw0ijkxx1aqy3x41k3gxpgv34g7d-ruby-3.3.10",
+              "path": "/nix/store/rpcpk0lxd8iliza4nl9apsgrpsb2yk4d-ruby-3.4.8",
               "default": true
             },
             {
               "name": "devdoc",
-              "path": "/nix/store/arvi0gqvw07ngbi2ci20dn5ka2jz5irv-ruby-3.3.10-devdoc"
+              "path": "/nix/store/9wnq7dd2yw2lbjs69y19lm08ranqa930-ruby-3.4.8-devdoc"
             }
           ],
-          "store_path": "/nix/store/1hlahw0ijkxx1aqy3x41k3gxpgv34g7d-ruby-3.3.10"
+          "store_path": "/nix/store/rpcpk0lxd8iliza4nl9apsgrpsb2yk4d-ruby-3.4.8"
         },
         "x86_64-darwin": {
           "outputs": [
             {
               "name": "out",
-              "path": "/nix/store/as6xdshxpansvkag8zqr602ajkn9079z-ruby-3.3.10",
+              "path": "/nix/store/gq0vdqfz16vf64ip8p749rmygxd7n3x1-ruby-3.4.8",
               "default": true
             },
             {
               "name": "devdoc",
-              "path": "/nix/store/wix1487x3br4gxa0il4q6llz5xyqxspl-ruby-3.3.10-devdoc"
+              "path": "/nix/store/k3yn26wvgk4mfrd5nw4a23wnijd9hz6c-ruby-3.4.8-devdoc"
             }
           ],
-          "store_path": "/nix/store/as6xdshxpansvkag8zqr602ajkn9079z-ruby-3.3.10"
+          "store_path": "/nix/store/gq0vdqfz16vf64ip8p749rmygxd7n3x1-ruby-3.4.8"
         },
         "x86_64-linux": {
           "outputs": [
             {
               "name": "out",
-              "path": "/nix/store/6jz2pgmsh06z9a83qi33f6lp9w2q6mzm-ruby-3.3.10",
+              "path": "/nix/store/s57rf37r1i38kpm3nlv4h8f8z2w2n80d-ruby-3.4.8",
               "default": true
             },
             {
               "name": "devdoc",
-              "path": "/nix/store/kah8xsbcd10iakxqmlw558iarhsrd5vi-ruby-3.3.10-devdoc"
+              "path": "/nix/store/4k6c15chplw6cicc6f3lgzmi7i4792j6-ruby-3.4.8-devdoc"
             }
           ],
-          "store_path": "/nix/store/6jz2pgmsh06z9a83qi33f6lp9w2q6mzm-ruby-3.3.10"
+          "store_path": "/nix/store/s57rf37r1i38kpm3nlv4h8f8z2w2n80d-ruby-3.4.8"
         }
       }
     },

generators/base/src/AbstractGeneratorAgent.ts

@@ -10,6 +10,7 @@ import { ReferenceConfigBuilder } from "./reference/index.js";
 import { RawGithubConfig, resolveGitHubConfig } from "./utils/index.js";
 
 const FEATURES_CONFIG_PATHS = [
+    ...(process.env.FERN_FEATURES_YML_PATH != null ? [process.env.FERN_FEATURES_YML_PATH] : []),
     "/assets/features.yml",
     path.join(__dirname, "./features.yml"),
     path.join(__dirname, "./assets/features.yml"),

generators/go-v2/sdk/src/endpoint/request/WrappedEndpointRequest.ts

@@ -117,17 +117,29 @@ export class WrappedEndpointRequest extends EndpointRequest {
         fileProperty: FernIr.FileProperty;
     }): void {
         switch (fileProperty.type) {
-            case "file":
+            case "file": {
+                const fileRef = this.getRequestPropertyReference({
+                    fieldName: fileProperty.key.name,
+                    isFile: true
+                });
+                if (fileProperty.isOptional) {
+                    writer.writeNewLineIfLastLineNot();
+                    writer.writeLine(`if ${fileRef} != nil {`);
+                    writer.indent();
+                }
                 this.writeFileUploadField({
                     writer,
                     key: fileProperty.key.wireValue,
-                    value: go.codeblock(
-                        this.getRequestPropertyReference({ fieldName: fileProperty.key.name, isFile: true })
-                    ),
+                    value: go.codeblock(fileRef),
                     contentType: fileProperty.contentType,
                     format: "file"
                 });
+                if (fileProperty.isOptional) {
+                    writer.dedent();
+                    writer.writeLine("}");
+                }
                 break;
+            }
             case "fileArray":
                 writer.writeLine(
                     `for _, f := range ${this.getRequestPropertyReference({ fieldName: fileProperty.key.name, isFile: true })} {`

generators/go/sdk/versions.yml

@@ -1,4 +1,16 @@
 # yaml-language-server: $schema=../../../fern-versions-yml.schema.json
+- version: 1.33.3
+  changelogEntry:
+    - summary: |
+        Fix nil pointer dereference panic when optional file fields are not
+        provided in multipart form-data requests. The generated code now wraps
+        `WriteFile` calls for optional binary fields in a nil guard, matching
+        the existing behavior for optional non-file body properties. Required
+        file fields remain unconditional.
+      type: fix
+  createdAt: "2026-04-07"
+  irVersion: 61
+
 - version: 1.33.2
   changelogEntry:
     - summary: |

generators/php/dynamic-snippets/src/EndpointSnippetGenerator.ts

@@ -321,16 +321,24 @@ export class EndpointSnippetGenerator {
         auth: FernIr.dynamic.BasicAuth;
         values: FernIr.dynamic.BasicAuthValues;
     }): NamedArgument[] {
-        return [
-            {
+        // usernameOmit/passwordOmit may exist in newer IR versions
+        const authRecord = auth as unknown as Record<string, unknown>;
+        const usernameOmitted = !!authRecord.usernameOmit;
+        const passwordOmitted = !!authRecord.passwordOmit;
+        const args: NamedArgument[] = [];
+        if (!usernameOmitted) {
+            args.push({
                 name: this.context.getPropertyName(auth.username),
                 assignment: php.TypeLiteral.string(values.username)
-            },
-            {
+            });
+        }
+        if (!passwordOmitted) {
+            args.push({
                 name: this.context.getPropertyName(auth.password),
                 assignment: php.TypeLiteral.string(values.password)
-            }
-        ];
+            });
+        }
+        return args;
     }
 
     private getConstructorEnvironmentArg({