diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 76b6b22..d491f39 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -35,6 +35,9 @@ jobs:
         ]
         components: ['']
         include:
+          - java-version: '22-ea'
+            distribution: 'graalvm'
+            os: ubuntu-latest
           - java-version: '21'
             distribution: ''
             os: ubuntu-latest
diff --git a/README.md b/README.md
index bf349c0..9758a0e 100644
--- a/README.md
+++ b/README.md
@@ -15,34 +15,6 @@ This action:
 - has built-in support for GraalVM components and the [GraalVM Updater][gu]
 
 
-## Migrating from GraalVM 22.3 or Earlier to the New GraalVM for JDK 17 and Later
-
-The [GraalVM for JDK 17 and JDK 20 release](https://medium.com/graalvm/a-new-graalvm-release-and-new-free-license-4aab483692f5) aligns the GraalVM version scheme with OpenJDK.
-As a result, this action no longer requires the `version` option to select a specific GraalVM version.
-At the same time, it introduces a new `distribution` option to select a specific GraalVM distribution (`graalvm`, `graalvm-community`, or `mandrel`).
-Therefore, to migrate your workflow to use the latest GraalVM release, replace the `version` with the `distribution` option in the workflow `yml` config, for example:
-
-```yml
-# ...
-- uses: graalvm/setup-graalvm@v1
-  with:
-    java-version: '17'
-    version: '22.3.2' # Old 'version' option for the GraalVM version
-    # ...
-```
-
-can be replaced with:
-
-```yml
-# ...
-- uses: graalvm/setup-graalvm@v1
-  with:
-    java-version: '17.0.7' # for a specific JDK 17; or '17' for the latest JDK 17
-    distribution: 'graalvm' # New 'distribution' option
-    # ...
-```
-
-
 ## Templates
 
 ### Quickstart Template
@@ -162,6 +134,35 @@ jobs:
 
 </details>
 
+
+## Migrating from GraalVM 22.3 or Earlier to the New GraalVM for JDK 17 and Later
+
+The [GraalVM for JDK 17 and JDK 20 release](https://medium.com/graalvm/a-new-graalvm-release-and-new-free-license-4aab483692f5) aligns the GraalVM version scheme with OpenJDK.
+As a result, this action no longer requires the `version` option to select a specific GraalVM version.
+At the same time, it introduces a new `distribution` option to select a specific GraalVM distribution (`graalvm`, `graalvm-community`, or `mandrel`).
+Therefore, to migrate your workflow to use the latest GraalVM release, replace the `version` with the `distribution` option in the workflow `yml` config, for example:
+
+```yml
+# ...
+- uses: graalvm/setup-graalvm@v1
+  with:
+    java-version: '17'
+    version: '22.3.2' # Old 'version' option for the GraalVM version
+    # ...
+```
+
+can be replaced with:
+
+```yml
+# ...
+- uses: graalvm/setup-graalvm@v1
+  with:
+    java-version: '17.0.7' # for a specific JDK 17; or '17' for the latest JDK 17
+    distribution: 'graalvm' # New 'distribution' option
+    # ...
+```
+
+
 ## Options
 
 | Name            | Default  | Description |
diff --git a/__tests__/cache.test.ts b/__tests__/cache.test.ts
index e59a546..cc73bf5 100644
--- a/__tests__/cache.test.ts
+++ b/__tests__/cache.test.ts
@@ -101,14 +101,14 @@ describe('dependency cache', () => {
     })
 
     it('throws error if unsupported package manager specified', () => {
-      return expect(restore('ant')).rejects.toThrowError(
+      return expect(restore('ant')).rejects.toThrow(
         'unknown package manager specified: ant'
       )
     })
 
     describe('for maven', () => {
       it('throws error if no pom.xml found', async () => {
-        await expect(restore('maven')).rejects.toThrowError(
+        await expect(restore('maven')).rejects.toThrow(
           `No file in ${projectRoot(
             workspace
           )} matched to [**/pom.xml], make sure you have checked out the target repository`
@@ -118,14 +118,14 @@ describe('dependency cache', () => {
         createFile(join(workspace, 'pom.xml'))
 
         await restore('maven')
-        expect(spyCacheRestore).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
-        expect(spyInfo).toBeCalledWith('maven cache is not found')
+        expect(spyCacheRestore).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
+        expect(spyInfo).toHaveBeenCalledWith('maven cache is not found')
       })
     })
     describe('for gradle', () => {
       it('throws error if no build.gradle found', async () => {
-        await expect(restore('gradle')).rejects.toThrowError(
+        await expect(restore('gradle')).rejects.toThrow(
           `No file in ${projectRoot(
             workspace
           )} matched to [**/*.gradle*,**/gradle-wrapper.properties,buildSrc/**/Versions.kt,buildSrc/**/Dependencies.kt], make sure you have checked out the target repository`
@@ -135,17 +135,17 @@ describe('dependency cache', () => {
         createFile(join(workspace, 'build.gradle'))
 
         await restore('gradle')
-        expect(spyCacheRestore).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
-        expect(spyInfo).toBeCalledWith('gradle cache is not found')
+        expect(spyCacheRestore).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
+        expect(spyInfo).toHaveBeenCalledWith('gradle cache is not found')
       })
       it('downloads cache based on build.gradle.kts', async () => {
         createFile(join(workspace, 'build.gradle.kts'))
 
         await restore('gradle')
-        expect(spyCacheRestore).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
-        expect(spyInfo).toBeCalledWith('gradle cache is not found')
+        expect(spyCacheRestore).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
+        expect(spyInfo).toHaveBeenCalledWith('gradle cache is not found')
       })
     })
     it('downloads cache based on buildSrc/Versions.kt', async () => {
@@ -153,13 +153,13 @@ describe('dependency cache', () => {
       createFile(join(workspace, 'buildSrc', 'Versions.kt'))
 
       await restore('gradle')
-      expect(spyCacheRestore).toBeCalled()
-      expect(spyWarning).not.toBeCalled()
-      expect(spyInfo).toBeCalledWith('gradle cache is not found')
+      expect(spyCacheRestore).toHaveBeenCalled()
+      expect(spyWarning).not.toHaveBeenCalled()
+      expect(spyInfo).toHaveBeenCalledWith('gradle cache is not found')
     })
     describe('for sbt', () => {
       it('throws error if no build.sbt found', async () => {
-        await expect(restore('sbt')).rejects.toThrowError(
+        await expect(restore('sbt')).rejects.toThrow(
           `No file in ${projectRoot(
             workspace
           )} matched to [**/*.sbt,**/project/build.properties,**/project/**.{scala,sbt}], make sure you have checked out the target repository`
@@ -169,9 +169,9 @@ describe('dependency cache', () => {
         createFile(join(workspace, 'build.sbt'))
 
         await restore('sbt')
-        expect(spyCacheRestore).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
-        expect(spyInfo).toBeCalledWith('sbt cache is not found')
+        expect(spyCacheRestore).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
+        expect(spyInfo).toHaveBeenCalledWith('sbt cache is not found')
       })
     })
   })
@@ -191,7 +191,7 @@ describe('dependency cache', () => {
     })
 
     it('throws error if unsupported package manager specified', () => {
-      return expect(save('ant')).rejects.toThrowError(
+      return expect(save('ant')).rejects.toThrow(
         'unknown package manager specified: ant'
       )
     })
@@ -201,10 +201,10 @@ describe('dependency cache', () => {
       createStateForMissingBuildFile()
 
       await save('maven')
-      expect(spyCacheSave).toBeCalled()
-      expect(spyWarning).not.toBeCalled()
-      expect(spyInfo).toBeCalled()
-      expect(spyInfo).toBeCalledWith(
+      expect(spyCacheSave).toHaveBeenCalled()
+      expect(spyWarning).not.toHaveBeenCalled()
+      expect(spyInfo).toHaveBeenCalled()
+      expect(spyInfo).toHaveBeenCalledWith(
         expect.stringMatching(/^Cache saved with the key:.*/)
       )
     })
@@ -225,24 +225,26 @@ describe('dependency cache', () => {
       it('uploads cache even if no pom.xml found', async () => {
         createStateForMissingBuildFile()
         await save('maven')
-        expect(spyCacheSave).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
+        expect(spyCacheSave).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
       })
       it('does not upload cache if no restore run before', async () => {
         createFile(join(workspace, 'pom.xml'))
 
         await save('maven')
-        expect(spyCacheSave).not.toBeCalled()
-        expect(spyWarning).toBeCalledWith('Error retrieving key from state.')
+        expect(spyCacheSave).not.toHaveBeenCalled()
+        expect(spyWarning).toHaveBeenCalledWith(
+          'Error retrieving key from state.'
+        )
       })
       it('uploads cache', async () => {
         createFile(join(workspace, 'pom.xml'))
         createStateForSuccessfulRestore()
 
         await save('maven')
-        expect(spyCacheSave).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
-        expect(spyInfo).toBeCalledWith(
+        expect(spyCacheSave).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
+        expect(spyInfo).toHaveBeenCalledWith(
           expect.stringMatching(/^Cache saved with the key:.*/)
         )
       })
@@ -252,24 +254,26 @@ describe('dependency cache', () => {
         createStateForMissingBuildFile()
 
         await save('gradle')
-        expect(spyCacheSave).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
+        expect(spyCacheSave).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
       })
       it('does not upload cache if no restore run before', async () => {
         createFile(join(workspace, 'build.gradle'))
 
         await save('gradle')
-        expect(spyCacheSave).not.toBeCalled()
-        expect(spyWarning).toBeCalledWith('Error retrieving key from state.')
+        expect(spyCacheSave).not.toHaveBeenCalled()
+        expect(spyWarning).toHaveBeenCalledWith(
+          'Error retrieving key from state.'
+        )
       })
       it('uploads cache based on build.gradle', async () => {
         createFile(join(workspace, 'build.gradle'))
         createStateForSuccessfulRestore()
 
         await save('gradle')
-        expect(spyCacheSave).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
-        expect(spyInfo).toBeCalledWith(
+        expect(spyCacheSave).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
+        expect(spyInfo).toHaveBeenCalledWith(
           expect.stringMatching(/^Cache saved with the key:.*/)
         )
       })
@@ -278,9 +282,9 @@ describe('dependency cache', () => {
         createStateForSuccessfulRestore()
 
         await save('gradle')
-        expect(spyCacheSave).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
-        expect(spyInfo).toBeCalledWith(
+        expect(spyCacheSave).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
+        expect(spyInfo).toHaveBeenCalledWith(
           expect.stringMatching(/^Cache saved with the key:.*/)
         )
       })
@@ -290,9 +294,9 @@ describe('dependency cache', () => {
         createStateForSuccessfulRestore()
 
         await save('gradle')
-        expect(spyCacheSave).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
-        expect(spyInfo).toBeCalledWith(
+        expect(spyCacheSave).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
+        expect(spyInfo).toHaveBeenCalledWith(
           expect.stringMatching(/^Cache saved with the key:.*/)
         )
       })
@@ -301,24 +305,26 @@ describe('dependency cache', () => {
       it('uploads cache even if no build.sbt found', async () => {
         createStateForMissingBuildFile()
         await save('sbt')
-        expect(spyCacheSave).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
+        expect(spyCacheSave).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
       })
       it('does not upload cache if no restore run before', async () => {
         createFile(join(workspace, 'build.sbt'))
 
         await save('sbt')
-        expect(spyCacheSave).not.toBeCalled()
-        expect(spyWarning).toBeCalledWith('Error retrieving key from state.')
+        expect(spyCacheSave).not.toHaveBeenCalled()
+        expect(spyWarning).toHaveBeenCalledWith(
+          'Error retrieving key from state.'
+        )
       })
       it('uploads cache', async () => {
         createFile(join(workspace, 'build.sbt'))
         createStateForSuccessfulRestore()
 
         await save('sbt')
-        expect(spyCacheSave).toBeCalled()
-        expect(spyWarning).not.toBeCalled()
-        expect(spyInfo).toBeCalledWith(
+        expect(spyCacheSave).toHaveBeenCalled()
+        expect(spyWarning).not.toHaveBeenCalled()
+        expect(spyInfo).toHaveBeenCalledWith(
           expect.stringMatching(/^Cache saved with the key:.*/)
         )
       })
diff --git a/__tests__/cleanup.test.ts b/__tests__/cleanup.test.ts
index 87b89ae..b43d151 100644
--- a/__tests__/cleanup.test.ts
+++ b/__tests__/cleanup.test.ts
@@ -27,7 +27,6 @@
 import {run as cleanup} from '../src/cleanup'
 import * as core from '@actions/core'
 import * as cache from '@actions/cache'
-import * as util from '../src/utils'
 
 describe('cleanup', () => {
   let spyWarning: jest.SpyInstance<void, Parameters<typeof core.warning>>
@@ -62,8 +61,8 @@ describe('cleanup', () => {
       return name === 'cache' ? 'gradle' : ''
     })
     await cleanup()
-    expect(spyCacheSave).toBeCalled()
-    expect(spyWarning).not.toBeCalled()
+    expect(spyCacheSave).toHaveBeenCalled()
+    expect(spyWarning).not.toHaveBeenCalled()
   })
 
   it('does not fail even though the save process throws error', async () => {
@@ -74,7 +73,7 @@ describe('cleanup', () => {
       return name === 'cache' ? 'gradle' : ''
     })
     await cleanup()
-    expect(spyCacheSave).toBeCalled()
+    expect(spyCacheSave).toHaveBeenCalled()
   })
 })
 
diff --git a/__tests__/utils.test.ts b/__tests__/utils.test.ts
new file mode 100644
index 0000000..b35791f
--- /dev/null
+++ b/__tests__/utils.test.ts
@@ -0,0 +1,34 @@
+import * as path from 'path'
+import {expect, test} from '@jest/globals'
+import {toSemVer} from '../src/utils'
+
+test('convert version', async () => {
+  for (var inputAndExpectedOutput of [
+    ['22', '22.0.0'],
+    ['22.0', '22.0.0'],
+    ['22.0.0', '22.0.0'],
+    ['22.0.0.2', '22.0.0-2'],
+    ['22-ea', '22.0.0-ea'],
+    ['22.0-ea', '22.0.0-ea'],
+    ['22.0.0-ea', '22.0.0-ea']
+  ]) {
+    expect(toSemVer(inputAndExpectedOutput[0])).toBe(inputAndExpectedOutput[1])
+  }
+})
+
+test('convert invalid version', async () => {
+  for (var input of ['dev', 'abc', 'a.b.c']) {
+    let error = new Error('unexpected')
+    try {
+      toSemVer(input)
+    } catch (err) {
+      if (!(err instanceof Error)) {
+        fail(`Unexpected non-Error: ${err}`)
+      }
+      error = err
+    }
+
+    expect(error).not.toBeUndefined()
+    expect(error.message).toContain('Unable to convert')
+  }
+})
diff --git a/dist/cleanup/index.js b/dist/cleanup/index.js
index ea401f3..93c8561 100644
--- a/dist/cleanup/index.js
+++ b/dist/cleanup/index.js
@@ -92864,11 +92864,12 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
     });
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.createPRComment = exports.isPREvent = exports.toSemVer = exports.calculateSHA256 = exports.downloadExtractAndCacheJDK = exports.downloadAndExtractJDK = exports.getMatchingTags = exports.getTaggedRelease = exports.getLatestRelease = exports.exec = void 0;
+exports.createPRComment = exports.isPREvent = exports.toSemVer = exports.calculateSHA256 = exports.downloadExtractAndCacheJDK = exports.downloadAndExtractJDK = exports.getMatchingTags = exports.getTaggedRelease = exports.getLatestRelease = exports.getLatestPrerelease = exports.exec = void 0;
 const c = __importStar(__nccwpck_require__(9042));
 const core = __importStar(__nccwpck_require__(2186));
 const github = __importStar(__nccwpck_require__(5438));
 const httpClient = __importStar(__nccwpck_require__(6255));
+const semver = __importStar(__nccwpck_require__(1383));
 const tc = __importStar(__nccwpck_require__(7784));
 const exec_1 = __nccwpck_require__(1514);
 const fs_1 = __nccwpck_require__(7147);
@@ -92894,6 +92895,23 @@ function exec(commandLine, args, options) {
     });
 }
 exports.exec = exec;
+function getLatestPrerelease(repo) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const githubToken = getGitHubToken();
+        const options = githubToken.length > 0 ? { auth: githubToken } : {};
+        const octokit = new GitHubDotCom(options);
+        const releases = (yield octokit.request('GET /repos/{owner}/{repo}/releases', {
+            owner: c.GRAALVM_GH_USER,
+            repo
+        })).data;
+        const firstPrerelease = releases.find(r => r.prerelease);
+        if (!firstPrerelease) {
+            throw new Error(`Unable to find latest prerelease in ${repo}`);
+        }
+        return firstPrerelease;
+    });
+}
+exports.getLatestPrerelease = getLatestPrerelease;
 function getLatestRelease(repo) {
     return __awaiter(this, void 0, void 0, function* () {
         const githubToken = getGitHubToken();
@@ -92982,17 +93000,22 @@ function findJavaHomeInSubfolder(searchPath) {
         throw new Error(`Unexpected amount of directory items found: ${baseContents.length}`);
     }
 }
-/**
- * This helper turns GraalVM version numbers (e.g., `22.0.0.2`) into valid
- * semver.org versions (e.g., `22.0.0-2`), which is needed because
- * @actions/tool-cache uses `semver` to validate versions.
- */
 function toSemVer(version) {
     const parts = version.split('.');
-    const major = parts[0];
-    const minor = parts.length > 1 ? parts[1] : '0';
-    const patch = parts.length > 2 ? parts.slice(2).join('-') : '0';
-    return `${major}.${minor}.${patch}`;
+    if (parts.length === 4) {
+        /**
+         * Turn legacy GraalVM version numbers (e.g., `22.0.0.2`) into valid
+         * semver.org versions (e.g., `22.0.0-2`).
+         */
+        return `${parts[0]}.${parts[1]}.${parts.slice(2).join('-')}`;
+    }
+    const versionParts = version.split('-', 2);
+    const suffix = versionParts.length === 2 ? '-' + versionParts[1] : '';
+    const validVersion = semver.valid(semver.coerce(versionParts[0]) + suffix);
+    if (!validVersion) {
+        throw new Error(`Unable to convert '${version}' to semantic version. ${c.ERROR_HINT}`);
+    }
+    return validVersion;
 }
 exports.toSemVer = toSemVer;
 function isPREvent() {
diff --git a/dist/main/index.js b/dist/main/index.js
index 65ff422..de5a601 100644
--- a/dist/main/index.js
+++ b/dist/main/index.js
@@ -93659,7 +93659,7 @@ const assert_1 = __nccwpck_require__(9491);
 const uuid_1 = __nccwpck_require__(5840);
 function downloadGraalVMEELegacy(gdsToken, version, javaVersion) {
     return __awaiter(this, void 0, void 0, function* () {
-        const userAgent = `GraalVMGitHubAction/1.1.6 (arch:${c.GRAALVM_ARCH}; os:${c.GRAALVM_PLATFORM}; java:${javaVersion})`;
+        const userAgent = `GraalVMGitHubAction/1.1.7 (arch:${c.GRAALVM_ARCH}; os:${c.GRAALVM_PLATFORM}; java:${javaVersion})`;
         const baseArtifact = yield fetchArtifact(userAgent, 'isBase:True', version, javaVersion);
         return downloadArtifact(gdsToken, userAgent, baseArtifact);
     });
@@ -93850,6 +93850,7 @@ const tool_cache_1 = __nccwpck_require__(7784);
 const path_1 = __nccwpck_require__(1017);
 const GRAALVM_DL_BASE = 'https://download.oracle.com/graalvm';
 const GRAALVM_CE_DL_BASE = `https://github.com/graalvm/${c.GRAALVM_RELEASES_REPO}/releases/download`;
+const ORACLE_GRAALVM_REPO_EA_BUILDS = 'oracle-graalvm-dev-builds';
 const GRAALVM_REPO_DEV_BUILDS = 'graalvm-ce-dev-builds';
 const GRAALVM_JDK_TAG_PREFIX = 'jdk-';
 const GRAALVM_TAG_PREFIX = 'vm-';
@@ -93860,7 +93861,8 @@ function setUpGraalVMJDK(javaVersionOrDev) {
             return setUpGraalVMJDKDevBuild();
         }
         const javaVersion = javaVersionOrDev;
-        let toolName = determineToolName(javaVersion, false);
+        const toolName = determineToolName(javaVersion, false);
+        let downloadName = toolName;
         let downloadUrl;
         if (javaVersion.includes('.')) {
             if (semver.valid(javaVersion)) {
@@ -93868,7 +93870,6 @@ function setUpGraalVMJDK(javaVersionOrDev) {
                 const minorJavaVersion = semver.minor(javaVersion);
                 const patchJavaVersion = semver.patch(javaVersion);
                 const isGARelease = minorJavaVersion === 0 && patchJavaVersion === 0;
-                let downloadName = toolName;
                 if (isGARelease) {
                     // For GA versions of JDKs, /archive/ does not use minor and patch version (see https://www.oracle.com/java/technologies/jdk-script-friendly-urls/)
                     downloadName = determineToolName(majorJavaVersion.toString(), false);
@@ -93879,14 +93880,31 @@ function setUpGraalVMJDK(javaVersionOrDev) {
                 throw new Error(`java-version set to '${javaVersion}'. Please make sure the java-version is set correctly. ${c.ERROR_HINT}`);
             }
         }
+        else if (javaVersion === '22-ea') {
+            downloadUrl = yield findLatestEABuildDownloadUrl(javaVersion);
+        }
         else {
-            downloadUrl = `${GRAALVM_DL_BASE}/${javaVersion}/latest/${toolName}${c.GRAALVM_FILE_EXTENSION}`;
+            downloadUrl = `${GRAALVM_DL_BASE}/${javaVersion}/latest/${downloadName}${c.GRAALVM_FILE_EXTENSION}`;
         }
         const downloader = () => __awaiter(this, void 0, void 0, function* () { return downloadGraalVMJDK(downloadUrl, javaVersion); });
         return (0, utils_1.downloadExtractAndCacheJDK)(downloader, toolName, javaVersion);
     });
 }
 exports.setUpGraalVMJDK = setUpGraalVMJDK;
+function findLatestEABuildDownloadUrl(javaEaVersion) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const latestPrerelease = yield (0, utils_1.getLatestPrerelease)(ORACLE_GRAALVM_REPO_EA_BUILDS);
+        const expectedFileNamePrefix = 'graalvm-jdk-';
+        const expectedFileNameSuffix = `_${c.JDK_PLATFORM}-${c.JDK_ARCH}_bin${c.GRAALVM_FILE_EXTENSION}`;
+        for (const asset of latestPrerelease.assets) {
+            if (asset.name.startsWith(expectedFileNamePrefix) &&
+                asset.name.endsWith(expectedFileNameSuffix)) {
+                return asset.browser_download_url;
+            }
+        }
+        throw new Error(`Could not find Oracle GraalVM build for ${javaEaVersion}. ${c.ERROR_HINT}`);
+    });
+}
 function setUpGraalVMJDKCE(javaVersionOrDev) {
     return __awaiter(this, void 0, void 0, function* () {
         if (javaVersionOrDev === c.VERSION_DEV) {
@@ -94621,11 +94639,12 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
     });
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.createPRComment = exports.isPREvent = exports.toSemVer = exports.calculateSHA256 = exports.downloadExtractAndCacheJDK = exports.downloadAndExtractJDK = exports.getMatchingTags = exports.getTaggedRelease = exports.getLatestRelease = exports.exec = void 0;
+exports.createPRComment = exports.isPREvent = exports.toSemVer = exports.calculateSHA256 = exports.downloadExtractAndCacheJDK = exports.downloadAndExtractJDK = exports.getMatchingTags = exports.getTaggedRelease = exports.getLatestRelease = exports.getLatestPrerelease = exports.exec = void 0;
 const c = __importStar(__nccwpck_require__(9042));
 const core = __importStar(__nccwpck_require__(2186));
 const github = __importStar(__nccwpck_require__(5438));
 const httpClient = __importStar(__nccwpck_require__(6255));
+const semver = __importStar(__nccwpck_require__(1383));
 const tc = __importStar(__nccwpck_require__(7784));
 const exec_1 = __nccwpck_require__(1514);
 const fs_1 = __nccwpck_require__(7147);
@@ -94651,6 +94670,23 @@ function exec(commandLine, args, options) {
     });
 }
 exports.exec = exec;
+function getLatestPrerelease(repo) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const githubToken = getGitHubToken();
+        const options = githubToken.length > 0 ? { auth: githubToken } : {};
+        const octokit = new GitHubDotCom(options);
+        const releases = (yield octokit.request('GET /repos/{owner}/{repo}/releases', {
+            owner: c.GRAALVM_GH_USER,
+            repo
+        })).data;
+        const firstPrerelease = releases.find(r => r.prerelease);
+        if (!firstPrerelease) {
+            throw new Error(`Unable to find latest prerelease in ${repo}`);
+        }
+        return firstPrerelease;
+    });
+}
+exports.getLatestPrerelease = getLatestPrerelease;
 function getLatestRelease(repo) {
     return __awaiter(this, void 0, void 0, function* () {
         const githubToken = getGitHubToken();
@@ -94739,17 +94775,22 @@ function findJavaHomeInSubfolder(searchPath) {
         throw new Error(`Unexpected amount of directory items found: ${baseContents.length}`);
     }
 }
-/**
- * This helper turns GraalVM version numbers (e.g., `22.0.0.2`) into valid
- * semver.org versions (e.g., `22.0.0-2`), which is needed because
- * @actions/tool-cache uses `semver` to validate versions.
- */
 function toSemVer(version) {
     const parts = version.split('.');
-    const major = parts[0];
-    const minor = parts.length > 1 ? parts[1] : '0';
-    const patch = parts.length > 2 ? parts.slice(2).join('-') : '0';
-    return `${major}.${minor}.${patch}`;
+    if (parts.length === 4) {
+        /**
+         * Turn legacy GraalVM version numbers (e.g., `22.0.0.2`) into valid
+         * semver.org versions (e.g., `22.0.0-2`).
+         */
+        return `${parts[0]}.${parts[1]}.${parts.slice(2).join('-')}`;
+    }
+    const versionParts = version.split('-', 2);
+    const suffix = versionParts.length === 2 ? '-' + versionParts[1] : '';
+    const validVersion = semver.valid(semver.coerce(versionParts[0]) + suffix);
+    if (!validVersion) {
+        throw new Error(`Unable to convert '${version}' to semantic version. ${c.ERROR_HINT}`);
+    }
+    return validVersion;
 }
 exports.toSemVer = toSemVer;
 function isPREvent() {
diff --git a/package-lock.json b/package-lock.json
index 0bdaa58..cbc3c3e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "setup-graalvm",
-  "version": "1.1.6",
+  "version": "1.1.7",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "setup-graalvm",
-      "version": "1.1.6",
+      "version": "1.1.7",
       "license": "UPL",
       "dependencies": {
         "@actions/cache": "^3.2.3",
diff --git a/package.json b/package.json
index ad9e8f8..e27dd87 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "setup-graalvm",
-  "version": "1.1.6",
+  "version": "1.1.7",
   "private": true,
   "description": "GitHub Action for GraalVM",
   "main": "lib/main.js",
diff --git a/src/constants.ts b/src/constants.ts
index a021f0e..4088517 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -49,6 +49,9 @@ export type LatestReleaseResponse =
 export type MatchingRefsResponse =
   otypes.Endpoints['GET /repos/{owner}/{repo}/git/matching-refs/{ref}']['response']
 
+export type ReleasesResponse =
+  otypes.Endpoints['GET /repos/{owner}/{repo}/releases']['response']
+
 function determineJDKArchitecture(): string {
   switch (process.arch) {
     case 'x64': {
diff --git a/src/gds.ts b/src/gds.ts
index 2323e32..3c96d48 100644
--- a/src/gds.ts
+++ b/src/gds.ts
@@ -31,7 +31,7 @@ export async function downloadGraalVMEELegacy(
   version: string,
   javaVersion: string
 ): Promise<string> {
-  const userAgent = `GraalVMGitHubAction/1.1.6 (arch:${c.GRAALVM_ARCH}; os:${c.GRAALVM_PLATFORM}; java:${javaVersion})`
+  const userAgent = `GraalVMGitHubAction/1.1.7 (arch:${c.GRAALVM_ARCH}; os:${c.GRAALVM_PLATFORM}; java:${javaVersion})`
   const baseArtifact = await fetchArtifact(
     userAgent,
     'isBase:True',
diff --git a/src/graalvm.ts b/src/graalvm.ts
index f2be101..f8c1fd8 100644
--- a/src/graalvm.ts
+++ b/src/graalvm.ts
@@ -3,9 +3,11 @@ import * as semver from 'semver'
 import {
   downloadAndExtractJDK,
   downloadExtractAndCacheJDK,
+  getLatestPrerelease,
   getLatestRelease,
   getMatchingTags,
-  getTaggedRelease
+  getTaggedRelease,
+  toSemVer
 } from './utils'
 import {downloadGraalVMEELegacy} from './gds'
 import {downloadTool} from '@actions/tool-cache'
@@ -13,6 +15,7 @@ import {basename} from 'path'
 
 const GRAALVM_DL_BASE = 'https://download.oracle.com/graalvm'
 const GRAALVM_CE_DL_BASE = `https://github.com/graalvm/${c.GRAALVM_RELEASES_REPO}/releases/download`
+const ORACLE_GRAALVM_REPO_EA_BUILDS = 'oracle-graalvm-dev-builds'
 const GRAALVM_REPO_DEV_BUILDS = 'graalvm-ce-dev-builds'
 const GRAALVM_JDK_TAG_PREFIX = 'jdk-'
 const GRAALVM_TAG_PREFIX = 'vm-'
@@ -26,7 +29,8 @@ export async function setUpGraalVMJDK(
     return setUpGraalVMJDKDevBuild()
   }
   const javaVersion = javaVersionOrDev
-  let toolName = determineToolName(javaVersion, false)
+  const toolName = determineToolName(javaVersion, false)
+  let downloadName = toolName
   let downloadUrl: string
   if (javaVersion.includes('.')) {
     if (semver.valid(javaVersion)) {
@@ -34,7 +38,6 @@ export async function setUpGraalVMJDK(
       const minorJavaVersion = semver.minor(javaVersion)
       const patchJavaVersion = semver.patch(javaVersion)
       const isGARelease = minorJavaVersion === 0 && patchJavaVersion === 0
-      let downloadName = toolName
       if (isGARelease) {
         // For GA versions of JDKs, /archive/ does not use minor and patch version (see https://www.oracle.com/java/technologies/jdk-script-friendly-urls/)
         downloadName = determineToolName(majorJavaVersion.toString(), false)
@@ -45,13 +48,36 @@ export async function setUpGraalVMJDK(
         `java-version set to '${javaVersion}'. Please make sure the java-version is set correctly. ${c.ERROR_HINT}`
       )
     }
+  } else if (javaVersion === '22-ea') {
+    downloadUrl = await findLatestEABuildDownloadUrl(javaVersion)
   } else {
-    downloadUrl = `${GRAALVM_DL_BASE}/${javaVersion}/latest/${toolName}${c.GRAALVM_FILE_EXTENSION}`
+    downloadUrl = `${GRAALVM_DL_BASE}/${javaVersion}/latest/${downloadName}${c.GRAALVM_FILE_EXTENSION}`
   }
   const downloader = async () => downloadGraalVMJDK(downloadUrl, javaVersion)
   return downloadExtractAndCacheJDK(downloader, toolName, javaVersion)
 }
 
+async function findLatestEABuildDownloadUrl(
+  javaEaVersion: string
+): Promise<string> {
+  const latestPrerelease = await getLatestPrerelease(
+    ORACLE_GRAALVM_REPO_EA_BUILDS
+  )
+  const expectedFileNamePrefix = 'graalvm-jdk-'
+  const expectedFileNameSuffix = `_${c.JDK_PLATFORM}-${c.JDK_ARCH}_bin${c.GRAALVM_FILE_EXTENSION}`
+  for (const asset of latestPrerelease.assets) {
+    if (
+      asset.name.startsWith(expectedFileNamePrefix) &&
+      asset.name.endsWith(expectedFileNameSuffix)
+    ) {
+      return asset.browser_download_url
+    }
+  }
+  throw new Error(
+    `Could not find Oracle GraalVM build for ${javaEaVersion}. ${c.ERROR_HINT}`
+  )
+}
+
 export async function setUpGraalVMJDKCE(
   javaVersionOrDev: string
 ): Promise<string> {
diff --git a/src/utils.ts b/src/utils.ts
index 0288dad..cf92b7f 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -2,6 +2,7 @@ import * as c from './constants'
 import * as core from '@actions/core'
 import * as github from '@actions/github'
 import * as httpClient from '@actions/http-client'
+import * as semver from 'semver'
 import * as tc from '@actions/tool-cache'
 import {ExecOptions, exec as e} from '@actions/exec'
 import {readFileSync, readdirSync} from 'fs'
@@ -33,6 +34,25 @@ export async function exec(
   }
 }
 
+export async function getLatestPrerelease(
+  repo: string
+): Promise<c.ReleasesResponse['data'][number]> {
+  const githubToken = getGitHubToken()
+  const options = githubToken.length > 0 ? {auth: githubToken} : {}
+  const octokit = new GitHubDotCom(options)
+  const releases: c.ReleasesResponse['data'] = (
+    await octokit.request('GET /repos/{owner}/{repo}/releases', {
+      owner: c.GRAALVM_GH_USER,
+      repo
+    })
+  ).data
+  const firstPrerelease = releases.find(r => r.prerelease)
+  if (!firstPrerelease) {
+    throw new Error(`Unable to find latest prerelease in ${repo}`)
+  }
+  return firstPrerelease
+}
+
 export async function getLatestRelease(
   repo: string
 ): Promise<c.LatestReleaseResponse['data']> {
@@ -135,17 +155,25 @@ function findJavaHomeInSubfolder(searchPath: string): string {
   }
 }
 
-/**
- * This helper turns GraalVM version numbers (e.g., `22.0.0.2`) into valid
- * semver.org versions (e.g., `22.0.0-2`), which is needed because
- * @actions/tool-cache uses `semver` to validate versions.
- */
 export function toSemVer(version: string): string {
   const parts = version.split('.')
-  const major = parts[0]
-  const minor = parts.length > 1 ? parts[1] : '0'
-  const patch = parts.length > 2 ? parts.slice(2).join('-') : '0'
-  return `${major}.${minor}.${patch}`
+  if (parts.length === 4) {
+    /**
+     * Turn legacy GraalVM version numbers (e.g., `22.0.0.2`) into valid
+     * semver.org versions (e.g., `22.0.0-2`).
+     */
+    return `${parts[0]}.${parts[1]}.${parts.slice(2).join('-')}`
+  }
+
+  const versionParts = version.split('-', 2)
+  const suffix = versionParts.length === 2 ? '-' + versionParts[1] : ''
+  const validVersion = semver.valid(semver.coerce(versionParts[0]) + suffix)
+  if (!validVersion) {
+    throw new Error(
+      `Unable to convert '${version}' to semantic version. ${c.ERROR_HINT}`
+    )
+  }
+  return validVersion
 }
 
 export function isPREvent(): boolean {