diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 000000000..e859bbacb
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to make participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies within all project spaces, and it also applies when
+an individual is representing the project or its community in public spaces.
+Examples of representing a project or community include using an official
+project e-mail address, posting via an official social media account, or acting
+as an appointed representative at an online or offline event. Representation of
+a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at opensource+actions/setup-python@github.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
diff --git a/dist/cache-save/index.js b/dist/cache-save/index.js
index 3c1d1c822..c1c654f28 100644
--- a/dist/cache-save/index.js
+++ b/dist/cache-save/index.js
@@ -1148,11 +1148,6 @@ function assertDefined(name, value) {
     return value;
 }
 exports.assertDefined = assertDefined;
-function isGhes() {
-    const ghUrl = new URL(process.env['GITHUB_SERVER_URL'] || 'https://github.com');
-    return ghUrl.hostname.toUpperCase() !== 'GITHUB.COM';
-}
-exports.isGhes = isGhes;
 //# sourceMappingURL=cacheUtils.js.map
 
 /***/ }),
@@ -3811,18 +3806,18 @@ function downloadCache(archiveLocation, archivePath, options) {
 exports.downloadCache = downloadCache;
 // Reserve Cache
 function reserveCache(key, paths, options) {
+    var _a, _b;
     return __awaiter(this, void 0, void 0, function* () {
         const httpClient = createHttpClient();
         const version = getCacheVersion(paths, options === null || options === void 0 ? void 0 : options.compressionMethod);
         const reserveCacheRequest = {
             key,
-            version,
-            cacheSize: options === null || options === void 0 ? void 0 : options.cacheSize
+            version
         };
         const response = yield requestUtils_1.retryTypedResponse('reserveCache', () => __awaiter(this, void 0, void 0, function* () {
             return httpClient.postJson(getCacheApiUrl('caches'), reserveCacheRequest);
         }));
-        return response;
+        return (_b = (_a = response === null || response === void 0 ? void 0 : response.result) === null || _a === void 0 ? void 0 : _a.cacheId) !== null && _b !== void 0 ? _b : -1;
     });
 }
 exports.reserveCache = reserveCache;
@@ -41533,12 +41528,18 @@ exports.restoreCache = restoreCache;
  * @returns number returns cacheId if the cache was saved successfully and throws an error if save fails
  */
 function saveCache(paths, key, options) {
-    var _a, _b, _c, _d, _e;
     return __awaiter(this, void 0, void 0, function* () {
         checkPaths(paths);
         checkKey(key);
         const compressionMethod = yield utils.getCompressionMethod();
-        let cacheId = null;
+        core.debug('Reserving Cache');
+        const cacheId = yield cacheHttpClient.reserveCache(key, paths, {
+            compressionMethod
+        });
+        if (cacheId === -1) {
+            throw new ReserveCacheError(`Unable to reserve cache with key ${key}, another job may be creating this cache.`);
+        }
+        core.debug(`Cache ID: ${cacheId}`);
         const cachePaths = yield utils.resolvePaths(paths);
         core.debug('Cache Paths:');
         core.debug(`${JSON.stringify(cachePaths)}`);
@@ -41553,24 +41554,9 @@ function saveCache(paths, key, options) {
             const fileSizeLimit = 10 * 1024 * 1024 * 1024; // 10GB per repo limit
             const archiveFileSize = utils.getArchiveFileSizeInBytes(archivePath);
             core.debug(`File Size: ${archiveFileSize}`);
-            // For GHES, this check will take place in ReserveCache API with enterprise file size limit
-            if (archiveFileSize > fileSizeLimit && !utils.isGhes()) {
+            if (archiveFileSize > fileSizeLimit) {
                 throw new Error(`Cache size of ~${Math.round(archiveFileSize / (1024 * 1024))} MB (${archiveFileSize} B) is over the 10GB limit, not saving cache.`);
             }
-            core.debug('Reserving Cache');
-            const reserveCacheResponse = yield cacheHttpClient.reserveCache(key, paths, {
-                compressionMethod,
-                cacheSize: archiveFileSize
-            });
-            if ((_a = reserveCacheResponse === null || reserveCacheResponse === void 0 ? void 0 : reserveCacheResponse.result) === null || _a === void 0 ? void 0 : _a.cacheId) {
-                cacheId = (_b = reserveCacheResponse === null || reserveCacheResponse === void 0 ? void 0 : reserveCacheResponse.result) === null || _b === void 0 ? void 0 : _b.cacheId;
-            }
-            else if ((reserveCacheResponse === null || reserveCacheResponse === void 0 ? void 0 : reserveCacheResponse.statusCode) === 400) {
-                throw new Error((_d = (_c = reserveCacheResponse === null || reserveCacheResponse === void 0 ? void 0 : reserveCacheResponse.error) === null || _c === void 0 ? void 0 : _c.message) !== null && _d !== void 0 ? _d : `Cache size of ~${Math.round(archiveFileSize / (1024 * 1024))} MB (${archiveFileSize} B) is over the data cap limit, not saving cache.`);
-            }
-            else {
-                throw new ReserveCacheError(`Unable to reserve cache with key ${key}, another job may be creating this cache. More details: ${(_e = reserveCacheResponse === null || reserveCacheResponse === void 0 ? void 0 : reserveCacheResponse.error) === null || _e === void 0 ? void 0 : _e.message}`);
-            }
             core.debug(`Saving Cache (ID: ${cacheId})`);
             yield cacheHttpClient.saveCache(cacheId, archivePath, options);
         }
@@ -50349,8 +50335,7 @@ function retryTypedResponse(name, method, maxAttempts = constants_1.DefaultRetry
                 return {
                     statusCode: error.statusCode,
                     result: null,
-                    headers: {},
-                    error
+                    headers: {}
                 };
             }
             else {
diff --git a/dist/setup/index.js b/dist/setup/index.js
index c51a5f770..ca18baa23 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -1148,11 +1148,6 @@ function assertDefined(name, value) {
     return value;
 }
 exports.assertDefined = assertDefined;
-function isGhes() {
-    const ghUrl = new URL(process.env['GITHUB_SERVER_URL'] || 'https://github.com');
-    return ghUrl.hostname.toUpperCase() !== 'GITHUB.COM';
-}
-exports.isGhes = isGhes;
 //# sourceMappingURL=cacheUtils.js.map
 
 /***/ }),
@@ -3964,18 +3959,18 @@ function downloadCache(archiveLocation, archivePath, options) {
 exports.downloadCache = downloadCache;
 // Reserve Cache
 function reserveCache(key, paths, options) {
+    var _a, _b;
     return __awaiter(this, void 0, void 0, function* () {
         const httpClient = createHttpClient();
         const version = getCacheVersion(paths, options === null || options === void 0 ? void 0 : options.compressionMethod);
         const reserveCacheRequest = {
             key,
-            version,
-            cacheSize: options === null || options === void 0 ? void 0 : options.cacheSize
+            version
         };
         const response = yield requestUtils_1.retryTypedResponse('reserveCache', () => __awaiter(this, void 0, void 0, function* () {
             return httpClient.postJson(getCacheApiUrl('caches'), reserveCacheRequest);
         }));
-        return response;
+        return (_b = (_a = response === null || response === void 0 ? void 0 : response.result) === null || _a === void 0 ? void 0 : _a.cacheId) !== null && _b !== void 0 ? _b : -1;
     });
 }
 exports.reserveCache = reserveCache;
@@ -6112,6 +6107,9 @@ function run() {
                     yield cacheDependencies(cache, pythonVersion);
                 }
             }
+            else {
+                throw new Error('there\'s empty python-version input');
+            }
             const matchersPath = path.join(__dirname, '../..', '.github');
             core.info(`##[add-matcher]${path.join(matchersPath, 'python.json')}`);
         }
@@ -47087,12 +47085,18 @@ exports.restoreCache = restoreCache;
  * @returns number returns cacheId if the cache was saved successfully and throws an error if save fails
  */
 function saveCache(paths, key, options) {
-    var _a, _b, _c, _d, _e;
     return __awaiter(this, void 0, void 0, function* () {
         checkPaths(paths);
         checkKey(key);
         const compressionMethod = yield utils.getCompressionMethod();
-        let cacheId = null;
+        core.debug('Reserving Cache');
+        const cacheId = yield cacheHttpClient.reserveCache(key, paths, {
+            compressionMethod
+        });
+        if (cacheId === -1) {
+            throw new ReserveCacheError(`Unable to reserve cache with key ${key}, another job may be creating this cache.`);
+        }
+        core.debug(`Cache ID: ${cacheId}`);
         const cachePaths = yield utils.resolvePaths(paths);
         core.debug('Cache Paths:');
         core.debug(`${JSON.stringify(cachePaths)}`);
@@ -47107,24 +47111,9 @@ function saveCache(paths, key, options) {
             const fileSizeLimit = 10 * 1024 * 1024 * 1024; // 10GB per repo limit
             const archiveFileSize = utils.getArchiveFileSizeInBytes(archivePath);
             core.debug(`File Size: ${archiveFileSize}`);
-            // For GHES, this check will take place in ReserveCache API with enterprise file size limit
-            if (archiveFileSize > fileSizeLimit && !utils.isGhes()) {
+            if (archiveFileSize > fileSizeLimit) {
                 throw new Error(`Cache size of ~${Math.round(archiveFileSize / (1024 * 1024))} MB (${archiveFileSize} B) is over the 10GB limit, not saving cache.`);
             }
-            core.debug('Reserving Cache');
-            const reserveCacheResponse = yield cacheHttpClient.reserveCache(key, paths, {
-                compressionMethod,
-                cacheSize: archiveFileSize
-            });
-            if ((_a = reserveCacheResponse === null || reserveCacheResponse === void 0 ? void 0 : reserveCacheResponse.result) === null || _a === void 0 ? void 0 : _a.cacheId) {
-                cacheId = (_b = reserveCacheResponse === null || reserveCacheResponse === void 0 ? void 0 : reserveCacheResponse.result) === null || _b === void 0 ? void 0 : _b.cacheId;
-            }
-            else if ((reserveCacheResponse === null || reserveCacheResponse === void 0 ? void 0 : reserveCacheResponse.statusCode) === 400) {
-                throw new Error((_d = (_c = reserveCacheResponse === null || reserveCacheResponse === void 0 ? void 0 : reserveCacheResponse.error) === null || _c === void 0 ? void 0 : _c.message) !== null && _d !== void 0 ? _d : `Cache size of ~${Math.round(archiveFileSize / (1024 * 1024))} MB (${archiveFileSize} B) is over the data cap limit, not saving cache.`);
-            }
-            else {
-                throw new ReserveCacheError(`Unable to reserve cache with key ${key}, another job may be creating this cache. More details: ${(_e = reserveCacheResponse === null || reserveCacheResponse === void 0 ? void 0 : reserveCacheResponse.error) === null || _e === void 0 ? void 0 : _e.message}`);
-            }
             core.debug(`Saving Cache (ID: ${cacheId})`);
             yield cacheHttpClient.saveCache(cacheId, archivePath, options);
         }
@@ -56433,8 +56422,7 @@ function retryTypedResponse(name, method, maxAttempts = constants_1.DefaultRetry
                 return {
                     statusCode: error.statusCode,
                     result: null,
-                    headers: {},
-                    error
+                    headers: {}
                 };
             }
             else {
diff --git a/src/setup-python.ts b/src/setup-python.ts
index 62c76dba9..3340a86e1 100644
--- a/src/setup-python.ts
+++ b/src/setup-python.ts
@@ -53,6 +53,8 @@ async function run() {
       if (cache && isCacheFeatureAvailable()) {
         await cacheDependencies(cache, pythonVersion);
       }
+    } else {
+      throw new Error('there\'s empty python-version input')
     }
     const matchersPath = path.join(__dirname, '../..', '.github');
     core.info(`##[add-matcher]${path.join(matchersPath, 'python.json')}`);