diff --git a/lib/entry-points.js b/lib/entry-points.js
index c7c2e2c7f..3bd8098e4 100644
--- a/lib/entry-points.js
+++ b/lib/entry-points.js
@@ -34664,7 +34664,7 @@ var require_parse2 = __commonJS({
   "node_modules/semver/functions/parse.js"(exports2, module2) {
     "use strict";
     var SemVer = require_semver();
-    var parse3 = (version, options, throwErrors = false) => {
+    var parse4 = (version, options, throwErrors = false) => {
       if (version instanceof SemVer) {
         return version;
       }
@@ -34677,7 +34677,7 @@ var require_parse2 = __commonJS({
         throw er;
       }
     };
-    module2.exports = parse3;
+    module2.exports = parse4;
   }
 });
 
@@ -34685,9 +34685,9 @@ var require_parse2 = __commonJS({
 var require_valid = __commonJS({
   "node_modules/semver/functions/valid.js"(exports2, module2) {
     "use strict";
-    var parse3 = require_parse2();
+    var parse4 = require_parse2();
     var valid4 = (version, options) => {
-      const v = parse3(version, options);
+      const v = parse4(version, options);
       return v ? v.version : null;
     };
     module2.exports = valid4;
@@ -34698,9 +34698,9 @@ var require_valid = __commonJS({
 var require_clean = __commonJS({
   "node_modules/semver/functions/clean.js"(exports2, module2) {
     "use strict";
-    var parse3 = require_parse2();
+    var parse4 = require_parse2();
     var clean3 = (version, options) => {
-      const s = parse3(version.trim().replace(/^[=v]+/, ""), options);
+      const s = parse4(version.trim().replace(/^[=v]+/, ""), options);
       return s ? s.version : null;
     };
     module2.exports = clean3;
@@ -34735,10 +34735,10 @@ var require_inc = __commonJS({
 var require_diff = __commonJS({
   "node_modules/semver/functions/diff.js"(exports2, module2) {
     "use strict";
-    var parse3 = require_parse2();
+    var parse4 = require_parse2();
     var diff = (version1, version2) => {
-      const v1 = parse3(version1, null, true);
-      const v2 = parse3(version2, null, true);
+      const v1 = parse4(version1, null, true);
+      const v2 = parse4(version2, null, true);
       const comparison = v1.compare(v2);
       if (comparison === 0) {
         return null;
@@ -34809,9 +34809,9 @@ var require_patch = __commonJS({
 var require_prerelease = __commonJS({
   "node_modules/semver/functions/prerelease.js"(exports2, module2) {
     "use strict";
-    var parse3 = require_parse2();
+    var parse4 = require_parse2();
     var prerelease = (version, options) => {
-      const parsed = parse3(version, options);
+      const parsed = parse4(version, options);
       return parsed && parsed.prerelease.length ? parsed.prerelease : null;
     };
     module2.exports = prerelease;
@@ -34997,7 +34997,7 @@ var require_coerce = __commonJS({
   "node_modules/semver/functions/coerce.js"(exports2, module2) {
     "use strict";
     var SemVer = require_semver();
-    var parse3 = require_parse2();
+    var parse4 = require_parse2();
     var { safeRe: re, t } = require_re();
     var coerce3 = (version, options) => {
       if (version instanceof SemVer) {
@@ -35032,7 +35032,7 @@ var require_coerce = __commonJS({
       const patch = match2[4] || "0";
       const prerelease = options.includePrerelease && match2[5] ? `-${match2[5]}` : "";
       const build2 = options.includePrerelease && match2[6] ? `+${match2[6]}` : "";
-      return parse3(`${major}.${minor}.${patch}${prerelease}${build2}`, options);
+      return parse4(`${major}.${minor}.${patch}${prerelease}${build2}`, options);
     };
     module2.exports = coerce3;
   }
@@ -35042,7 +35042,7 @@ var require_coerce = __commonJS({
 var require_truncate = __commonJS({
   "node_modules/semver/functions/truncate.js"(exports2, module2) {
     "use strict";
-    var parse3 = require_parse2();
+    var parse4 = require_parse2();
     var constants = require_constants6();
     var SemVer = require_semver();
     var truncate = (version, truncation, options) => {
@@ -35054,7 +35054,7 @@ var require_truncate = __commonJS({
     };
     var cloneInputVersion = (version, options) => {
       const versionStringToParse = version instanceof SemVer ? version.version : version;
-      return parse3(versionStringToParse, options);
+      return parse4(versionStringToParse, options);
     };
     var doTruncation = (version, truncation) => {
       if (isPrerelease(truncation)) {
@@ -36098,7 +36098,7 @@ var require_semver2 = __commonJS({
     var constants = require_constants6();
     var SemVer = require_semver();
     var identifiers = require_identifiers();
-    var parse3 = require_parse2();
+    var parse4 = require_parse2();
     var valid4 = require_valid();
     var clean3 = require_clean();
     var inc = require_inc();
@@ -36137,7 +36137,7 @@ var require_semver2 = __commonJS({
     var simplifyRange = require_simplify();
     var subset = require_subset();
     module2.exports = {
-      parse: parse3,
+      parse: parse4,
       valid: valid4,
       clean: clean3,
       inc,
@@ -39820,9 +39820,9 @@ var require_minimatch = __commonJS({
         throw new TypeError("pattern is too long");
       }
     };
-    Minimatch2.prototype.parse = parse3;
+    Minimatch2.prototype.parse = parse4;
     var SUBPARSE = {};
-    function parse3(pattern, isSub) {
+    function parse4(pattern, isSub) {
       assertValidPattern2(pattern);
       var options = this.options;
       if (pattern === "**") {
@@ -41272,8 +41272,8 @@ var require_semver3 = __commonJS({
       }
     }
     var i;
-    exports2.parse = parse3;
-    function parse3(version, options) {
+    exports2.parse = parse4;
+    function parse4(version, options) {
       if (!options || typeof options !== "object") {
         options = {
           loose: !!options,
@@ -41301,12 +41301,12 @@ var require_semver3 = __commonJS({
     }
     exports2.valid = valid4;
     function valid4(version, options) {
-      var v = parse3(version, options);
+      var v = parse4(version, options);
       return v ? v.version : null;
     }
     exports2.clean = clean3;
     function clean3(version, options) {
-      var s = parse3(version.trim().replace(/^[=v]+/, ""), options);
+      var s = parse4(version.trim().replace(/^[=v]+/, ""), options);
       return s ? s.version : null;
     }
     exports2.SemVer = SemVer;
@@ -41542,8 +41542,8 @@ var require_semver3 = __commonJS({
       if (eq(version1, version2)) {
         return null;
       } else {
-        var v1 = parse3(version1);
-        var v2 = parse3(version2);
+        var v1 = parse4(version1);
+        var v2 = parse4(version2);
         var prefix = "";
         if (v1.prerelease.length || v2.prerelease.length) {
           prefix = "pre";
@@ -42249,7 +42249,7 @@ var require_semver3 = __commonJS({
     }
     exports2.prerelease = prerelease;
     function prerelease(version, options) {
-      var parsed = parse3(version, options);
+      var parsed = parse4(version, options);
       return parsed && parsed.prerelease.length ? parsed.prerelease : null;
     }
     exports2.intersects = intersects;
@@ -42286,7 +42286,7 @@ var require_semver3 = __commonJS({
       if (match2 === null) {
         return null;
       }
-      return parse3(match2[2] + "." + (match2[3] || "0") + "." + (match2[4] || "0"), options);
+      return parse4(match2[2] + "." + (match2[3] || "0") + "." + (match2[4] || "0"), options);
     }
   }
 });
@@ -42430,7 +42430,7 @@ var require_cacheUtils = __commonJS({
     var crypto3 = __importStar2(require("crypto"));
     var fs33 = __importStar2(require("fs"));
     var path30 = __importStar2(require("path"));
-    var semver11 = __importStar2(require_semver3());
+    var semver12 = __importStar2(require_semver3());
     var util4 = __importStar2(require("util"));
     var constants_1 = require_constants7();
     var versionSalt = "1.0";
@@ -42523,7 +42523,7 @@ var require_cacheUtils = __commonJS({
     function getCompressionMethod() {
       return __awaiter2(this, void 0, void 0, function* () {
         const versionOutput = yield getVersion("zstd", ["--quiet"]);
-        const version = semver11.clean(versionOutput);
+        const version = semver12.clean(versionOutput);
         core29.debug(`zstd version: ${version}`);
         if (versionOutput === "") {
           return constants_1.CompressionMethod.Gzip;
@@ -45201,7 +45201,7 @@ var require_ms = __commonJS({
       options = options || {};
       var type = typeof val;
       if (type === "string" && val.length > 0) {
-        return parse3(val);
+        return parse4(val);
       } else if (type === "number" && isFinite(val)) {
         return options.long ? fmtLong(val) : fmtShort(val);
       }
@@ -45209,7 +45209,7 @@ var require_ms = __commonJS({
         "val is not a non-empty string or a valid number. val=" + JSON.stringify(val)
       );
     };
-    function parse3(str) {
+    function parse4(str) {
       str = String(str);
       if (str.length > 100) {
         return;
@@ -53110,7 +53110,7 @@ var require_deserializationPolicy = __commonJS({
       return result;
     }
     async function deserializeResponseBody(jsonContentTypes, xmlContentTypes, response, options, parseXML) {
-      const parsedResponse = await parse3(jsonContentTypes, xmlContentTypes, response, options, parseXML);
+      const parsedResponse = await parse4(jsonContentTypes, xmlContentTypes, response, options, parseXML);
       if (!shouldDeserializeResponse(parsedResponse)) {
         return parsedResponse;
       }
@@ -53211,7 +53211,7 @@ var require_deserializationPolicy = __commonJS({
       }
       return { error: error3, shouldReturnResponse: false };
     }
-    async function parse3(jsonContentTypes, xmlContentTypes, operationResponse, opts, parseXML) {
+    async function parse4(jsonContentTypes, xmlContentTypes, operationResponse, opts, parseXML) {
       if (!operationResponse.request.streamResponseStatusCodes?.has(operationResponse.status) && operationResponse.bodyAsText) {
         const text = operationResponse.bodyAsText;
         const contentType = operationResponse.headers.get("Content-Type") || "";
@@ -114072,7 +114072,7 @@ var require_manifest = __commonJS({
     exports2._findMatch = _findMatch;
     exports2._getOsVersion = _getOsVersion;
     exports2._readLinuxVersionFile = _readLinuxVersionFile;
-    var semver11 = __importStar2(require_semver2());
+    var semver12 = __importStar2(require_semver2());
     var core_1 = require_core();
     var os8 = require("os");
     var cp = require("child_process");
@@ -114086,7 +114086,7 @@ var require_manifest = __commonJS({
         for (const candidate of candidates) {
           const version = candidate.version;
           (0, core_1.debug)(`check ${version} satisfies ${versionSpec}`);
-          if (semver11.satisfies(version, versionSpec) && (!stable || candidate.stable === stable)) {
+          if (semver12.satisfies(version, versionSpec) && (!stable || candidate.stable === stable)) {
             file = candidate.files.find((item) => {
               (0, core_1.debug)(`${item.arch}===${archFilter} && ${item.platform}===${platFilter}`);
               let chk = item.arch === archFilter && item.platform === platFilter;
@@ -114095,7 +114095,7 @@ var require_manifest = __commonJS({
                 if (osVersion === item.platform_version) {
                   chk = true;
                 } else {
-                  chk = semver11.satisfies(osVersion, item.platform_version);
+                  chk = semver12.satisfies(osVersion, item.platform_version);
                 }
               }
               return chk;
@@ -114355,7 +114355,7 @@ var require_tool_cache = __commonJS({
     var os8 = __importStar2(require("os"));
     var path30 = __importStar2(require("path"));
     var httpm = __importStar2(require_lib());
-    var semver11 = __importStar2(require_semver2());
+    var semver12 = __importStar2(require_semver2());
     var stream2 = __importStar2(require("stream"));
     var util4 = __importStar2(require("util"));
     var assert_1 = require("assert");
@@ -114628,7 +114628,7 @@ var require_tool_cache = __commonJS({
     }
     function cacheDir2(sourceDir, tool, version, arch2) {
       return __awaiter2(this, void 0, void 0, function* () {
-        version = semver11.clean(version) || version;
+        version = semver12.clean(version) || version;
         arch2 = arch2 || os8.arch();
         core29.debug(`Caching tool ${tool} ${version} ${arch2}`);
         core29.debug(`source dir: ${sourceDir}`);
@@ -114646,7 +114646,7 @@ var require_tool_cache = __commonJS({
     }
     function cacheFile(sourceFile, targetFile, tool, version, arch2) {
       return __awaiter2(this, void 0, void 0, function* () {
-        version = semver11.clean(version) || version;
+        version = semver12.clean(version) || version;
         arch2 = arch2 || os8.arch();
         core29.debug(`Caching tool ${tool} ${version} ${arch2}`);
         core29.debug(`source file: ${sourceFile}`);
@@ -114676,7 +114676,7 @@ var require_tool_cache = __commonJS({
       }
       let toolPath = "";
       if (versionSpec) {
-        versionSpec = semver11.clean(versionSpec) || "";
+        versionSpec = semver12.clean(versionSpec) || "";
         const cachePath = path30.join(_getCacheDirectory(), toolName, versionSpec, arch2);
         core29.debug(`checking cache: ${cachePath}`);
         if (fs33.existsSync(cachePath) && fs33.existsSync(`${cachePath}.complete`)) {
@@ -114756,7 +114756,7 @@ var require_tool_cache = __commonJS({
     }
     function _createToolPath(tool, version, arch2) {
       return __awaiter2(this, void 0, void 0, function* () {
-        const folderPath = path30.join(_getCacheDirectory(), tool, semver11.clean(version) || version, arch2 || "");
+        const folderPath = path30.join(_getCacheDirectory(), tool, semver12.clean(version) || version, arch2 || "");
         core29.debug(`destination ${folderPath}`);
         const markerPath = `${folderPath}.complete`;
         yield io9.rmRF(folderPath);
@@ -114766,15 +114766,15 @@ var require_tool_cache = __commonJS({
       });
     }
     function _completeToolPath(tool, version, arch2) {
-      const folderPath = path30.join(_getCacheDirectory(), tool, semver11.clean(version) || version, arch2 || "");
+      const folderPath = path30.join(_getCacheDirectory(), tool, semver12.clean(version) || version, arch2 || "");
       const markerPath = `${folderPath}.complete`;
       fs33.writeFileSync(markerPath, "");
       core29.debug("finished caching tool");
     }
     function isExplicitVersion(versionSpec) {
-      const c = semver11.clean(versionSpec) || "";
+      const c = semver12.clean(versionSpec) || "";
       core29.debug(`isExplicit: ${c}`);
-      const valid4 = semver11.valid(c) != null;
+      const valid4 = semver12.valid(c) != null;
       core29.debug(`explicit? ${valid4}`);
       return valid4;
     }
@@ -114782,14 +114782,14 @@ var require_tool_cache = __commonJS({
       let version = "";
       core29.debug(`evaluating ${versions.length} versions`);
       versions = versions.sort((a, b) => {
-        if (semver11.gt(a, b)) {
+        if (semver12.gt(a, b)) {
           return 1;
         }
         return -1;
       });
       for (let i = versions.length - 1; i >= 0; i--) {
         const potential = versions[i];
-        const satisfied = semver11.satisfies(potential, versionSpec);
+        const satisfied = semver12.satisfies(potential, versionSpec);
         if (satisfied) {
           version = potential;
           break;
@@ -144290,7 +144290,7 @@ var require_dist_node2 = __commonJS({
         return template.replace(/\/$/, "");
       }
     }
-    function parse3(options) {
+    function parse4(options) {
       let method = options.method.toUpperCase();
       let url2 = (options.url || "/").replace(/:([a-z]\w+)/g, "{$1}");
       let headers = Object.assign({}, options.headers);
@@ -144354,7 +144354,7 @@ var require_dist_node2 = __commonJS({
       );
     }
     function endpointWithDefaults2(defaults3, route, options) {
-      return parse3(merge2(defaults3, route, options));
+      return parse4(merge2(defaults3, route, options));
     }
     function withDefaults4(oldDefaults, newDefaults) {
       const DEFAULTS22 = merge2(oldDefaults, newDefaults);
@@ -144363,7 +144363,7 @@ var require_dist_node2 = __commonJS({
         DEFAULTS: DEFAULTS22,
         defaults: withDefaults4.bind(null, DEFAULTS22),
         merge: merge2.bind(null, DEFAULTS22),
-        parse: parse3
+        parse: parse4
       });
     }
     var endpoint2 = withDefaults4(null, DEFAULTS2);
@@ -148595,7 +148595,7 @@ var require_binary = __commonJS({
       });
       return stream2;
     };
-    exports2.parse = function parse3(buffer) {
+    exports2.parse = function parse4(buffer) {
       var self2 = words(function(bytes, cb) {
         return function(name) {
           if (offset + bytes <= buffer.length) {
@@ -183078,7 +183078,7 @@ var fs15 = __toESM(require("fs"));
 var path13 = __toESM(require("path"));
 var import_perf_hooks4 = require("perf_hooks");
 var toolcache3 = __toESM(require_tool_cache());
-var semver9 = __toESM(require_semver2());
+var semver10 = __toESM(require_semver2());
 
 // src/codeql-bundle.ts
 function getCodeQLBundleName(compressionMethod, platform2, language) {
@@ -183407,9 +183407,10 @@ async function getCodeQlVersionsForOverlayBaseDatabases(rawLanguages, logger2) {
 }
 
 // src/per-language-bundles.ts
-var semver6 = __toESM(require_semver2());
+var semver7 = __toESM(require_semver2());
 
 // src/platform.ts
+var semver6 = __toESM(require_semver2());
 function getBundlePlatform(platform2 = process.platform, arch2 = process.arch) {
   switch (platform2) {
     case "win32":
@@ -183422,6 +183423,16 @@ function getBundlePlatform(platform2 = process.platform, arch2 = process.arch) {
       return void 0;
   }
 }
+function macOSVersion(action) {
+  if (action.platform !== "darwin") {
+    return void 0;
+  }
+  const version = semver6.parse(action.osRelease);
+  if (version === null) {
+    return action.osRelease;
+  }
+  return version;
+}
 
 // src/per-language-bundles.ts
 var MIN_PER_LANGUAGE_BUNDLE_CLI_VERSION = "2.27.1";
@@ -183509,7 +183520,7 @@ function getPerLanguageBundleLanguage(action, options) {
     if (cliVersion2 === void 0) {
       return explain("the requested CLI version is unknown");
     }
-    if (!semver6.gte(cliVersion2, MIN_PER_LANGUAGE_BUNDLE_CLI_VERSION)) {
+    if (!semver7.gte(cliVersion2, MIN_PER_LANGUAGE_BUNDLE_CLI_VERSION)) {
       return explain(
         `the requested CodeQL version ${cliVersion2} is older than ${MIN_PER_LANGUAGE_BUNDLE_CLI_VERSION}, which is the first version for which per-language bundles are published`
       );
@@ -183607,7 +183618,7 @@ var stream = __toESM(require("stream"));
 var import_toolrunner = __toESM(require_toolrunner());
 var io4 = __toESM(require_io());
 var toolcache = __toESM(require_tool_cache());
-var semver7 = __toESM(require_semver2());
+var semver8 = __toESM(require_semver2());
 var MIN_REQUIRED_BSD_TAR_VERSION = "3.4.3";
 var MIN_REQUIRED_GNU_TAR_VERSION = "1.31";
 async function getTarVersion() {
@@ -183649,9 +183660,9 @@ async function isZstdAvailable(logger2) {
       case "gnu":
         return {
           available: foundZstdBinary && // GNU tar only uses major and minor version numbers
-          semver7.gte(
-            semver7.coerce(version),
-            semver7.coerce(MIN_REQUIRED_GNU_TAR_VERSION)
+          semver8.gte(
+            semver8.coerce(version),
+            semver8.coerce(MIN_REQUIRED_GNU_TAR_VERSION)
           ),
           foundZstdBinary,
           version: tarVersion
@@ -183660,7 +183671,7 @@ async function isZstdAvailable(logger2) {
         return {
           available: foundZstdBinary && // Do a loose comparison since these version numbers don't contain
           // a patch version number.
-          semver7.gte(version, MIN_REQUIRED_BSD_TAR_VERSION),
+          semver8.gte(version, MIN_REQUIRED_BSD_TAR_VERSION),
           foundZstdBinary,
           version: tarVersion
         };
@@ -183769,7 +183780,7 @@ var core11 = __toESM(require_core());
 var import_http_client = __toESM(require_lib());
 var toolcache2 = __toESM(require_tool_cache());
 var import_follow_redirects = __toESM(require_follow_redirects());
-var semver8 = __toESM(require_semver2());
+var semver9 = __toESM(require_semver2());
 var STREAMING_HIGH_WATERMARK_BYTES = 4 * 1024 * 1024;
 var STREAMING_STALL_TIMEOUT_MS = 5 * 60 * 1e3;
 var TOOLCACHE_TOOL_NAME = "CodeQL";
@@ -183895,7 +183906,7 @@ function getToolcacheToolDirectory(env) {
   );
 }
 function getToolcacheVersionDirectoryName(version) {
-  return semver8.clean(version) || version;
+  return semver9.clean(version) || version;
 }
 function getToolcacheDirectory(version) {
   return path12.join(
@@ -184022,13 +184033,13 @@ function tryGetTagNameFromUrl(url2, logger2) {
   return match2[1];
 }
 function convertToSemVer(version, logger2) {
-  if (!semver9.valid(version)) {
+  if (!semver10.valid(version)) {
     logger2.debug(
       `Bundle version ${version} is not in SemVer format. Will treat it as pre-release 0.0.0-${version}.`
     );
     version = `0.0.0-${version}`;
   }
-  const s = semver9.clean(version);
+  const s = semver10.clean(version);
   if (!s) {
     throw new Error(`Bundle version ${version} is not in SemVer format.`);
   }
@@ -184208,7 +184219,7 @@ async function getCodeQLSource(toolsInput, defaultCliVersion, rawLanguages, othe
     url2 = toolsInput;
     if (tagName) {
       const bundleVersion3 = tryGetBundleVersionFromTagName(tagName, logger2);
-      if (bundleVersion3 !== void 0 && semver9.valid(bundleVersion3)) {
+      if (bundleVersion3 !== void 0 && semver10.valid(bundleVersion3)) {
         cliVersion2 = convertToSemVer(bundleVersion3, logger2);
       }
     }
@@ -184586,7 +184597,7 @@ async function downloadCodeQLBundle(action, source, apiDetails, tarVersion, temp
 async function useZstdBundle(cliVersion2, tarSupportsZstd) {
   return (
     // In testing, gzip performs better than zstd on Windows.
-    process.platform !== "win32" && tarSupportsZstd && semver9.gte(cliVersion2, CODEQL_VERSION_ZSTD_BUNDLE)
+    process.platform !== "win32" && tarSupportsZstd && semver10.gte(cliVersion2, CODEQL_VERSION_ZSTD_BUNDLE)
   );
 }
 function getTempExtractionDir(tempDir) {
@@ -184640,7 +184651,7 @@ async function getLatestNightlyBundle(action, rawLanguages, otherLanguagePacksRe
   }
 }
 function getLatestToolcacheVersion(logger2) {
-  const allVersions = toolcache3.findAllVersions("CodeQL").sort((a, b) => semver9.compare(b, a));
+  const allVersions = toolcache3.findAllVersions("CodeQL").sort((a, b) => semver10.compare(b, a));
   logger2.debug(
     `Found the following versions of the CodeQL tools in the toolcache: ${JSON.stringify(
       allVersions
@@ -193803,7 +193814,7 @@ var fs30 = __toESM(require("fs"));
 var path25 = __toESM(require("path"));
 var core19 = __toESM(require_core());
 var io7 = __toESM(require_io());
-var semver10 = __toESM(require_semver2());
+var semver11 = __toESM(require_semver2());
 
 // src/config/inputs.ts
 async function getToolsInput(action, repositoryProperties) {
@@ -193841,11 +193852,21 @@ async function getToolsInput(action, repositoryProperties) {
 
 // src/languages/swift.ts
 function checkSwiftCompatibility(action, config) {
-  if (config.languages.includes("swift" /* swift */) && action.platform !== "darwin") {
+  if (!config.languages.includes("swift" /* swift */)) {
+    return;
+  }
+  const version = macOSVersion(action);
+  if (version === void 0) {
     throw new ConfigurationError(
       `Swift analysis is only supported on macOS runner images. Please migrate to a macOS runner.`
     );
   }
+  if (typeof version === "string") {
+    action.logger.warning(
+      `Unable to determine version of macOS, got: ${version}`
+    );
+    return;
+  }
 }
 
 // src/status-report/tools-download.ts
@@ -194322,7 +194343,7 @@ async function run3(actionState) {
     ) {
       const publicPreview = "2.22.1";
       const actualVer = (await codeql.getVersion()).version;
-      if (semver10.lt(actualVer, publicPreview)) {
+      if (semver11.lt(actualVer, publicPreview)) {
         actionState.env.export("CODEQL_ENABLE_EXPERIMENTAL_FEATURES" /* EXPERIMENTAL_FEATURES */, "true");
         logger2.info("Experimental Rust analysis enabled");
       }
diff --git a/src/languages/swift.test.ts b/src/languages/swift.test.ts
index 2f3182fea..344a1ead5 100644
--- a/src/languages/swift.test.ts
+++ b/src/languages/swift.test.ts
@@ -3,6 +3,7 @@ import sinon from "sinon";
 
 import { ActionsEnvVars } from "../environment";
 import {
+  checkExpectedLogMessages,
   createTestConfig,
   getCodeQLForTesting,
   getTestEnv,
@@ -68,3 +69,14 @@ for (const nonDarwinPlatform of nonDarwinPlatforms) {
     );
   });
 }
+
+test("checkSwiftCompatibility warns if version string is not a semver", (t) => {
+  const logger = new RecordingLogger();
+  checkSwiftCompatibility(
+    initAllState({ logger, platform: "darwin", osRelease: "unexpected" }),
+    createTestConfig({ languages: [BuiltInLanguage.swift] }),
+  );
+  checkExpectedLogMessages(t, logger.messages, [
+    "Unable to determine version of macOS, got: unexpected",
+  ]);
+});
diff --git a/src/languages/swift.ts b/src/languages/swift.ts
index 4faa3efe9..bb542b08b 100644
--- a/src/languages/swift.ts
+++ b/src/languages/swift.ts
@@ -1,5 +1,6 @@
 import { ActionState } from "../action-common";
 import { Config } from "../config-utils";
+import { macOSVersion } from "../platform";
 import { ConfigurationError } from "../util";
 
 import { BuiltInLanguage } from ".";
@@ -13,15 +14,28 @@ import { BuiltInLanguage } from ".";
  * @throws {ConfigurationError} If Swift analysis is not possible on the current runner.
  */
 export function checkSwiftCompatibility(
-  action: ActionState<["Base"]>,
+  action: ActionState<["Base", "Logger"]>,
   config: Config,
 ) {
-  if (
-    config.languages.includes(BuiltInLanguage.swift) &&
-    action.platform !== "darwin"
-  ) {
+  // The checks are not relevant if we are not trying to analyse Swift.
+  if (!config.languages.includes(BuiltInLanguage.swift)) {
+    return;
+  }
+
+  // Try to get the macOS version.
+  const version = macOSVersion(action);
+
+  // If `version` is undefined, then we are not on macOS.
+  if (version === undefined) {
     throw new ConfigurationError(
       `Swift analysis is only supported on macOS runner images. Please migrate to a macOS runner.`,
     );
   }
+  // If we got a string, we are on macOS but couldn't parse the version string.
+  if (typeof version === "string") {
+    action.logger.warning(
+      `Unable to determine version of macOS, got: ${version}`,
+    );
+    return;
+  }
 }