diff --git a/dist/index.js b/dist/index.js
index 6ec60e7..8980585 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -954,6 +954,145 @@ module.exports = require("tls");
 
 /***/ }),
 
+/***/ 31:
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const semver = __importStar(__webpack_require__(280));
+const core_1 = __webpack_require__(470);
+// needs to be require for core node modules to be mocked
+/* eslint @typescript-eslint/no-require-imports: 0 */
+const os = __webpack_require__(87);
+const cp = __webpack_require__(129);
+const fs = __webpack_require__(747);
+function _findMatch(versionSpec, stable, candidates, archFilter) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const platFilter = os.platform();
+        let result;
+        let match;
+        let file;
+        for (const candidate of candidates) {
+            const version = candidate.version;
+            core_1.debug(`check ${version} satisfies ${versionSpec}`);
+            if (semver.satisfies(version, versionSpec) &&
+                (!stable || candidate.stable === stable)) {
+                file = candidate.files.find(item => {
+                    core_1.debug(`${item.arch}===${archFilter} && ${item.platform}===${platFilter}`);
+                    let chk = item.arch === archFilter && item.platform === platFilter;
+                    if (chk && item.platform_version) {
+                        const osVersion = module.exports._getOsVersion();
+                        if (osVersion === item.platform_version) {
+                            chk = true;
+                        }
+                        else {
+                            chk = semver.satisfies(osVersion, item.platform_version);
+                        }
+                    }
+                    return chk;
+                });
+                if (file) {
+                    core_1.debug(`matched ${candidate.version}`);
+                    match = candidate;
+                    break;
+                }
+            }
+        }
+        if (match && file) {
+            // clone since we're mutating the file list to be only the file that matches
+            result = Object.assign({}, match);
+            result.files = [file];
+        }
+        return result;
+    });
+}
+exports._findMatch = _findMatch;
+function _getOsVersion() {
+    // TODO: add windows and other linux, arm variants
+    // right now filtering on version is only an ubuntu and macos scenario for tools we build for hosted (python)
+    const plat = os.platform();
+    let version = '';
+    if (plat === 'darwin') {
+        version = cp.execSync('sw_vers -productVersion').toString();
+    }
+    else if (plat === 'linux') {
+        // lsb_release process not in some containers, readfile
+        // Run cat /etc/lsb-release
+        // DISTRIB_ID=Ubuntu
+        // DISTRIB_RELEASE=18.04
+        // DISTRIB_CODENAME=bionic
+        // DISTRIB_DESCRIPTION="Ubuntu 18.04.4 LTS"
+        const lsbContents = module.exports._readLinuxVersionFile();
+        if (lsbContents) {
+            const lines = lsbContents.split('\n');
+            for (const line of lines) {
+                const parts = line.split('=');
+                if (parts.length === 2 && parts[0].trim() === 'DISTRIB_RELEASE') {
+                    version = parts[1].trim();
+                    break;
+                }
+            }
+        }
+    }
+    return version;
+}
+exports._getOsVersion = _getOsVersion;
+function _readLinuxVersionFile() {
+    const lsbFile = '/etc/lsb-release';
+    let contents = '';
+    if (fs.existsSync(lsbFile)) {
+        contents = fs.readFileSync(lsbFile).toString();
+    }
+    return contents;
+}
+exports._readLinuxVersionFile = _readLinuxVersionFile;
+//# sourceMappingURL=manifest.js.map
+
+/***/ }),
+
+/***/ 82:
+/***/ (function(__unusedmodule, exports) {
+
+"use strict";
+
+// We use any as a valid input type
+/* eslint-disable @typescript-eslint/no-explicit-any */
+Object.defineProperty(exports, "__esModule", { value: true });
+/**
+ * Sanitizes an input into a string so it can be passed into issueCommand safely
+ * @param input input to sanitize into a string
+ */
+function toCommandValue(input) {
+    if (input === null || input === undefined) {
+        return '';
+    }
+    else if (typeof input === 'string' || input instanceof String) {
+        return input;
+    }
+    return JSON.stringify(input);
+}
+exports.toCommandValue = toCommandValue;
+//# sourceMappingURL=utils.js.map
+
+/***/ }),
+
 /***/ 87:
 /***/ (function(module) {
 
@@ -961,6 +1100,42 @@ module.exports = require("os");
 
 /***/ }),
 
+/***/ 102:
+/***/ (function(__unusedmodule, exports, __webpack_require__) {
+
+"use strict";
+
+// For internal use, subject to change.
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+// We use any as a valid input type
+/* eslint-disable @typescript-eslint/no-explicit-any */
+const fs = __importStar(__webpack_require__(747));
+const os = __importStar(__webpack_require__(87));
+const utils_1 = __webpack_require__(82);
+function issueCommand(command, message) {
+    const filePath = process.env[`GITHUB_${command}`];
+    if (!filePath) {
+        throw new Error(`Unable to find environment variable for file command ${command}`);
+    }
+    if (!fs.existsSync(filePath)) {
+        throw new Error(`Missing file at path: ${filePath}`);
+    }
+    fs.appendFileSync(filePath, `${utils_1.toCommandValue(message)}${os.EOL}`, {
+        encoding: 'utf8'
+    });
+}
+exports.issueCommand = issueCommand;
+//# sourceMappingURL=file-command.js.map
+
+/***/ }),
+
 /***/ 129:
 /***/ (function(module) {
 
@@ -3024,6 +3199,7 @@ var __importStar = (this && this.__importStar) || function (mod) {
 };
 Object.defineProperty(exports, "__esModule", { value: true });
 const os = __importStar(__webpack_require__(87));
+const utils_1 = __webpack_require__(82);
 /**
  * Commands
  *
@@ -3077,28 +3253,14 @@ class Command {
         return cmdStr;
     }
 }
-/**
- * Sanitizes an input into a string so it can be passed into issueCommand safely
- * @param input input to sanitize into a string
- */
-function toCommandValue(input) {
-    if (input === null || input === undefined) {
-        return '';
-    }
-    else if (typeof input === 'string' || input instanceof String) {
-        return input;
-    }
-    return JSON.stringify(input);
-}
-exports.toCommandValue = toCommandValue;
 function escapeData(s) {
-    return toCommandValue(s)
+    return utils_1.toCommandValue(s)
         .replace(/%/g, '%25')
         .replace(/\r/g, '%0D')
         .replace(/\n/g, '%0A');
 }
 function escapeProperty(s) {
-    return toCommandValue(s)
+    return utils_1.toCommandValue(s)
         .replace(/%/g, '%25')
         .replace(/\r/g, '%0D')
         .replace(/\n/g, '%0A')
@@ -3132,6 +3294,8 @@ var __importStar = (this && this.__importStar) || function (mod) {
 };
 Object.defineProperty(exports, "__esModule", { value: true });
 const command_1 = __webpack_require__(431);
+const file_command_1 = __webpack_require__(102);
+const utils_1 = __webpack_require__(82);
 const os = __importStar(__webpack_require__(87));
 const path = __importStar(__webpack_require__(622));
 /**
@@ -3158,9 +3322,17 @@ var ExitCode;
  */
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 function exportVariable(name, val) {
-    const convertedVal = command_1.toCommandValue(val);
+    const convertedVal = utils_1.toCommandValue(val);
     process.env[name] = convertedVal;
-    command_1.issueCommand('set-env', { name }, convertedVal);
+    const filePath = process.env['GITHUB_ENV'] || '';
+    if (filePath) {
+        const delimiter = '_GitHubActionsFileCommandDelimeter_';
+        const commandValue = `${name}<<${delimiter}${os.EOL}${convertedVal}${os.EOL}${delimiter}`;
+        file_command_1.issueCommand('ENV', commandValue);
+    }
+    else {
+        command_1.issueCommand('set-env', { name }, convertedVal);
+    }
 }
 exports.exportVariable = exportVariable;
 /**
@@ -3176,7 +3348,13 @@ exports.setSecret = setSecret;
  * @param inputPath
  */
 function addPath(inputPath) {
-    command_1.issueCommand('add-path', {}, inputPath);
+    const filePath = process.env['GITHUB_PATH'] || '';
+    if (filePath) {
+        file_command_1.issueCommand('PATH', inputPath);
+    }
+    else {
+        command_1.issueCommand('add-path', {}, inputPath);
+    }
     process.env['PATH'] = `${inputPath}${path.delimiter}${process.env['PATH']}`;
 }
 exports.addPath = addPath;
@@ -3366,6 +3544,7 @@ Object.defineProperty(exports, "__esModule", { value: true });
 const core = __importStar(__webpack_require__(470));
 const io = __importStar(__webpack_require__(1));
 const fs = __importStar(__webpack_require__(747));
+const mm = __importStar(__webpack_require__(31));
 const os = __importStar(__webpack_require__(87));
 const path = __importStar(__webpack_require__(622));
 const httpm = __importStar(__webpack_require__(539));
@@ -3385,15 +3564,17 @@ class HTTPError extends Error {
 }
 exports.HTTPError = HTTPError;
 const IS_WINDOWS = process.platform === 'win32';
+const IS_MAC = process.platform === 'darwin';
 const userAgent = 'actions/tool-cache';
 /**
  * Download a tool from an url and stream it into a file
  *
  * @param url       url of tool to download
  * @param dest      path to download tool
+ * @param auth      authorization header
  * @returns         path to downloaded tool
  */
-function downloadTool(url, dest) {
+function downloadTool(url, dest, auth) {
     return __awaiter(this, void 0, void 0, function* () {
         dest = dest || path.join(_getTempDirectory(), v4_1.default());
         yield io.mkdirP(path.dirname(dest));
@@ -3404,7 +3585,7 @@ function downloadTool(url, dest) {
         const maxSeconds = _getGlobal('TEST_DOWNLOAD_TOOL_RETRY_MAX_SECONDS', 20);
         const retryHelper = new retry_helper_1.RetryHelper(maxAttempts, minSeconds, maxSeconds);
         return yield retryHelper.execute(() => __awaiter(this, void 0, void 0, function* () {
-            return yield downloadToolAttempt(url, dest || '');
+            return yield downloadToolAttempt(url, dest || '', auth);
         }), (err) => {
             if (err instanceof HTTPError && err.httpStatusCode) {
                 // Don't retry anything less than 500, except 408 Request Timeout and 429 Too Many Requests
@@ -3420,7 +3601,7 @@ function downloadTool(url, dest) {
     });
 }
 exports.downloadTool = downloadTool;
-function downloadToolAttempt(url, dest) {
+function downloadToolAttempt(url, dest, auth) {
     return __awaiter(this, void 0, void 0, function* () {
         if (fs.existsSync(dest)) {
             throw new Error(`Destination file path ${dest} already exists`);
@@ -3429,7 +3610,14 @@ function downloadToolAttempt(url, dest) {
         const http = new httpm.HttpClient(userAgent, [], {
             allowRetries: false
         });
-        const response = yield http.get(url);
+        let headers;
+        if (auth) {
+            core.debug('set auth');
+            headers = {
+                authorization: auth
+            };
+        }
+        const response = yield http.get(url, headers);
         if (response.message.statusCode !== 200) {
             const err = new HTTPError(response.message.statusCode);
             core.debug(`Failed to download from "${url}". Code(${response.message.statusCode}) Message(${response.message.statusMessage})`);
@@ -3484,9 +3672,10 @@ function extract7z(file, dest, _7zPath) {
         process.chdir(dest);
         if (_7zPath) {
             try {
+                const logLevel = core.isDebug() ? '-bb1' : '-bb0';
                 const args = [
                     'x',
-                    '-bb1',
+                    logLevel,
                     '-bd',
                     '-sccUTF-8',
                     file
@@ -3562,7 +3751,16 @@ function extractTar(file, dest, flags = 'xz') {
         core.debug(versionOutput.trim());
         const isGnuTar = versionOutput.toUpperCase().includes('GNU TAR');
         // Initialize args
-        const args = [flags];
+        let args;
+        if (flags instanceof Array) {
+            args = flags;
+        }
+        else {
+            args = [flags];
+        }
+        if (core.isDebug() && !flags.includes('v')) {
+            args.push('-v');
+        }
         let destArg = dest;
         let fileArg = file;
         if (IS_WINDOWS && isGnuTar) {
@@ -3582,6 +3780,36 @@ function extractTar(file, dest, flags = 'xz') {
     });
 }
 exports.extractTar = extractTar;
+/**
+ * Extract a xar compatible archive
+ *
+ * @param file     path to the archive
+ * @param dest     destination directory. Optional.
+ * @param flags    flags for the xar. Optional.
+ * @returns        path to the destination directory
+ */
+function extractXar(file, dest, flags = []) {
+    return __awaiter(this, void 0, void 0, function* () {
+        assert_1.ok(IS_MAC, 'extractXar() not supported on current OS');
+        assert_1.ok(file, 'parameter "file" is required');
+        dest = yield _createExtractFolder(dest);
+        let args;
+        if (flags instanceof Array) {
+            args = flags;
+        }
+        else {
+            args = [flags];
+        }
+        args.push('-x', '-C', dest, '-f', file);
+        if (core.isDebug()) {
+            args.push('-v');
+        }
+        const xarPath = yield io.which('xar', true);
+        yield exec_1.exec(`"${xarPath}"`, _unique(args));
+        return dest;
+    });
+}
+exports.extractXar = extractXar;
 /**
  * Extract a zip
  *
@@ -3612,7 +3840,7 @@ function extractZipWin(file, dest) {
         const escapedDest = dest.replace(/'/g, "''").replace(/"|\n|\r/g, '');
         const command = `$ErrorActionPreference = 'Stop' ; try { Add-Type -AssemblyName System.IO.Compression.FileSystem } catch { } ; [System.IO.Compression.ZipFile]::ExtractToDirectory('${escapedFile}', '${escapedDest}')`;
         // run powershell
-        const powershellPath = yield io.which('powershell');
+        const powershellPath = yield io.which('powershell', true);
         const args = [
             '-NoLogo',
             '-Sta',
@@ -3628,8 +3856,12 @@ function extractZipWin(file, dest) {
 }
 function extractZipNix(file, dest) {
     return __awaiter(this, void 0, void 0, function* () {
-        const unzipPath = yield io.which('unzip');
-        yield exec_1.exec(`"${unzipPath}"`, [file], { cwd: dest });
+        const unzipPath = yield io.which('unzip', true);
+        const args = [file];
+        if (!core.isDebug()) {
+            args.unshift('-q');
+        }
+        yield exec_1.exec(`"${unzipPath}"`, args, { cwd: dest });
     });
 }
 /**
@@ -3757,6 +3989,51 @@ function findAllVersions(toolName, arch) {
     return versions;
 }
 exports.findAllVersions = findAllVersions;
+function getManifestFromRepo(owner, repo, auth, branch = 'master') {
+    return __awaiter(this, void 0, void 0, function* () {
+        let releases = [];
+        const treeUrl = `https://api.github.com/repos/${owner}/${repo}/git/trees/${branch}`;
+        const http = new httpm.HttpClient('tool-cache');
+        const headers = {};
+        if (auth) {
+            core.debug('set auth');
+            headers.authorization = auth;
+        }
+        const response = yield http.getJson(treeUrl, headers);
+        if (!response.result) {
+            return releases;
+        }
+        let manifestUrl = '';
+        for (const item of response.result.tree) {
+            if (item.path === 'versions-manifest.json') {
+                manifestUrl = item.url;
+                break;
+            }
+        }
+        headers['accept'] = 'application/vnd.github.VERSION.raw';
+        let versionsRaw = yield (yield http.get(manifestUrl, headers)).readBody();
+        if (versionsRaw) {
+            // shouldn't be needed but protects against invalid json saved with BOM
+            versionsRaw = versionsRaw.replace(/^\uFEFF/, '');
+            try {
+                releases = JSON.parse(versionsRaw);
+            }
+            catch (_a) {
+                core.debug('Invalid json');
+            }
+        }
+        return releases;
+    });
+}
+exports.getManifestFromRepo = getManifestFromRepo;
+function findFromManifest(versionSpec, stable, manifest, archFilter = os.arch()) {
+    return __awaiter(this, void 0, void 0, function* () {
+        // wrap the internal impl
+        const match = yield mm._findMatch(versionSpec, stable, manifest, archFilter);
+        return match;
+    });
+}
+exports.findFromManifest = findFromManifest;
 function _createExtractFolder(dest) {
     return __awaiter(this, void 0, void 0, function* () {
         if (!dest) {
@@ -3841,6 +4118,13 @@ function _getGlobal(key, defaultValue) {
     /* eslint-enable @typescript-eslint/no-explicit-any */
     return value !== undefined ? value : defaultValue;
 }
+/**
+ * Returns an array of unique values.
+ * @param values Values to make unique.
+ */
+function _unique(values) {
+    return Array.from(new Set(values));
+}
 //# sourceMappingURL=tool-cache.js.map
 
 /***/ }),
diff --git a/package-lock.json b/package-lock.json
index 131a93b..a7a0e24 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,8 +10,8 @@
       "dependencies": {
         "@actions/core": "^1.2.6",
         "@actions/exec": "^1.0.4",
-        "@actions/io": "^1.0.1",
-        "@actions/tool-cache": "^1.3.4"
+        "@actions/io": "^1.0.2",
+        "@actions/tool-cache": "^1.6.1"
       },
       "devDependencies": {
         "@types/node": "^12.12.38",
@@ -46,11 +46,11 @@
       "integrity": "sha512-J8KuFqVPr3p6U8W93DOXlXW6zFvrQAJANdS+vw0YhusLIq+bszW8zmK2Fh1C2kDPX8FMvwIl1OUcFgvJoXLbAg=="
     },
     "node_modules/@actions/tool-cache": {
-      "version": "1.3.4",
-      "resolved": "https://registry.npmjs.org/@actions/tool-cache/-/tool-cache-1.3.4.tgz",
-      "integrity": "sha512-1Pfz4vDbKzqsWOi5CdNl377cwBNfsNrV3Wy8i94mw+49T+6JVqAH3gtFj/Woe93zyvlvzqM0rmQlPh5+jvKLag==",
+      "version": "1.6.1",
+      "resolved": "https://registry.npmjs.org/@actions/tool-cache/-/tool-cache-1.6.1.tgz",
+      "integrity": "sha512-F+vwEDwfqcHMKuSkj79pihOnsAMv23EkG76nMpc82UsnXwyQdyEsktGxrB0SNtm7pRqTXEIOoAPTgrSQclXYTg==",
       "dependencies": {
-        "@actions/core": "^1.2.0",
+        "@actions/core": "^1.2.6",
         "@actions/exec": "^1.0.0",
         "@actions/http-client": "^1.0.8",
         "@actions/io": "^1.0.1",
@@ -139,11 +139,11 @@
       "integrity": "sha512-J8KuFqVPr3p6U8W93DOXlXW6zFvrQAJANdS+vw0YhusLIq+bszW8zmK2Fh1C2kDPX8FMvwIl1OUcFgvJoXLbAg=="
     },
     "@actions/tool-cache": {
-      "version": "1.3.4",
-      "resolved": "https://registry.npmjs.org/@actions/tool-cache/-/tool-cache-1.3.4.tgz",
-      "integrity": "sha512-1Pfz4vDbKzqsWOi5CdNl377cwBNfsNrV3Wy8i94mw+49T+6JVqAH3gtFj/Woe93zyvlvzqM0rmQlPh5+jvKLag==",
+      "version": "1.6.1",
+      "resolved": "https://registry.npmjs.org/@actions/tool-cache/-/tool-cache-1.6.1.tgz",
+      "integrity": "sha512-F+vwEDwfqcHMKuSkj79pihOnsAMv23EkG76nMpc82UsnXwyQdyEsktGxrB0SNtm7pRqTXEIOoAPTgrSQclXYTg==",
       "requires": {
-        "@actions/core": "^1.2.0",
+        "@actions/core": "^1.2.6",
         "@actions/exec": "^1.0.0",
         "@actions/http-client": "^1.0.8",
         "@actions/io": "^1.0.1",
diff --git a/package.json b/package.json
index 215ec7f..30328c2 100644
--- a/package.json
+++ b/package.json
@@ -11,8 +11,8 @@
   "dependencies": {
     "@actions/core": "^1.2.6",
     "@actions/exec": "^1.0.4",
-    "@actions/io": "^1.0.1",
-    "@actions/tool-cache": "^1.3.4"
+    "@actions/io": "^1.0.2",
+    "@actions/tool-cache": "^1.6.1"
   },
   "devDependencies": {
     "@types/node": "^12.12.38",