dsanders11 · Jul 22, 2026 · Jul 22, 2026 · Jul 22, 2026 · Jul 22, 2026
@@ -45,12 +45,14 @@ Electron Packager is known to run on the following **host** platforms:
 
 It generates executables/bundles for the following **target** platforms:
 
-- Windows (also known as `win32`, for x86, x86_64, and arm64 architectures)
+- Windows (also known as `win32`, for x86[^ia32], x86_64, and arm64 architectures)
 - macOS (also known as `darwin`) / [Mac App Store](https://electronjs.org/docs/tutorial/mac-app-store-submission-guide/) (also known as `mas`)<sup>\*</sup> (for x86_64, arm64, and universal architectures)
-- Linux (for x86, x86_64, armv7l, arm64, and mips64el architectures)
+- Linux (for x86, x86_64, armv7l[^ia32], arm64, and mips64el architectures)
 
 <sup>*</sup> *Note for macOS / Mac App Store target bundles: the `.app` bundle can only be signed when building on a host macOS platform.\*
 
+[^ia32]: Windows x86 (`ia32`) and Linux `armv7l` builds are only published for Electron <= 43 — starting with Electron 44.0.0-alpha.4, official builds for these architectures are no longer provided.
+
 ## Installation
 
 This module requires Node.js 22.12.0 or higher to run.

@@ -35,6 +35,7 @@ const buildVersions = {
   },
   linux: {
     arm64: '>= 1.8.0',
+    armv7l: '<44.0.0-alpha.4',
     ia32: '<19.0.0-beta.1',
     mips64el: '^1.8.2-beta.5',
   },
@@ -44,6 +45,7 @@ const buildVersions = {
   },
   win32: {
     arm64: '>= 6.0.8',
+    ia32: '<44.0.0-alpha.4',
   },
 } as Record<SupportedPlatform, Record<SupportedArch, string>>;
 

@@ -59,6 +59,32 @@ describe('allOfficialArchsForPlatformAndVersion', () => {
     const result2 = allOfficialArchsForPlatformAndVersion('mas', '10.0.0');
     expect(result2).not.toContain('arm64');
   });
+
+  it('supports win32/ia32 for the correct versions', () => {
+    const result = allOfficialArchsForPlatformAndVersion('win32', '43.0.0');
+    expect(result).toContain('ia32');
+    const result2 = allOfficialArchsForPlatformAndVersion('win32', '44.0.0-alpha.3');
+    expect(result2).toContain('ia32');
+    const result3 = allOfficialArchsForPlatformAndVersion('win32', '44.0.0-alpha.4');
+    expect(result3).not.toContain('ia32');
+    const result4 = allOfficialArchsForPlatformAndVersion('win32', '44.0.0');
+    expect(result4).not.toContain('ia32');
+    const result5 = allOfficialArchsForPlatformAndVersion('win32', '45.0.0-nightly.20260714');
+    expect(result5).not.toContain('ia32');
+  });
+
+  it('supports linux/armv7l for the correct versions', () => {
+    const result = allOfficialArchsForPlatformAndVersion('linux', '43.0.0');
+    expect(result).toContain('armv7l');
+    const result2 = allOfficialArchsForPlatformAndVersion('linux', '44.0.0-alpha.3');
+    expect(result2).toContain('armv7l');
+    const result3 = allOfficialArchsForPlatformAndVersion('linux', '44.0.0-alpha.4');
+    expect(result3).not.toContain('armv7l');
+    const result4 = allOfficialArchsForPlatformAndVersion('linux', '44.0.0');
+    expect(result4).not.toContain('armv7l');
+    const result5 = allOfficialArchsForPlatformAndVersion('linux', '45.0.0-nightly.20260714');
+    expect(result5).not.toContain('armv7l');
+  });
 });
 
 describe('validateListFromOptions', () => {
@@ -106,6 +132,36 @@ describe('createPlatformArchPairs', () => {
       extraOpts: { platform: 'linux', arch: 'all' },
       expectedLength: 3,
     },
+    {
+      testCase: 'all win32 arches in a version without ia32 support',
+      extraOpts: { platform: 'win32', arch: 'all', electronVersion: '44.0.0-alpha.4' },
+      expectedLength: 2,
+    },
+    {
+      testCase: 'all linux arches in a version without ia32, armv7l, or mips64el support',
+      extraOpts: { platform: 'linux', arch: 'all', electronVersion: '45.0.0-nightly.20260714' },
+      expectedLength: 2,
+    },
+    {
+      testCase: 'win32/ia32 in the last version that supports it',
+      extraOpts: { platform: 'win32', arch: 'ia32', electronVersion: '44.0.0-alpha.3' },
+      expectedLength: 1,
+    },
+    {
+      testCase: 'win32/ia32 in a version that no longer supports it',
+      extraOpts: { platform: 'win32', arch: 'ia32', electronVersion: '44.0.0-alpha.4' },
+      expectedLength: 0,
+    },
+    {
+      testCase: 'linux/armv7l in the last version that supports it',
+      extraOpts: { platform: 'linux', arch: 'armv7l', electronVersion: '44.0.0-alpha.3' },
+      expectedLength: 1,
+    },
+    {
+      testCase: 'linux/armv7l in a version that no longer supports it',
+      extraOpts: { platform: 'linux', arch: 'armv7l', electronVersion: '45.0.0-nightly.20260714' },
+      expectedLength: 0,
+    },
     {
       testCase: 'platform/arch combinations (arrays)',
       extraOpts: { platform: ['darwin', 'win32'], arch: ['arm64', 'x64'] },