diff --git a/lib/feature-flags.js b/lib/feature-flags.js
index 65dd0a7b48..3ada1e3a9e 100644
--- a/lib/feature-flags.js
+++ b/lib/feature-flags.js
@@ -76,6 +76,7 @@ exports.FEATURE_FLAGS_FILE_NAME = "cached-feature-flags.json";
  */
 class Features {
     constructor(gitHubVersion, repositoryNwo, tempDir, logger) {
+        this.logger = logger;
         this.gitHubFeatureFlags = new GitHubFeatureFlags(gitHubVersion, repositoryNwo, path.join(tempDir, exports.FEATURE_FLAGS_FILE_NAME), logger);
     }
     async getDefaultCliVersion(variant) {
@@ -100,22 +101,36 @@ class Features {
         const envVar = (process.env[exports.featureConfig[feature].envVar] || "").toLocaleLowerCase();
         // Do not use this feature if user explicitly disables it via an environment variable.
         if (envVar === "false") {
+            this.logger.debug(`Feature ${feature} is disabled via the environment variable ${exports.featureConfig[feature].envVar}.`);
             return false;
         }
         // Never use this feature if the CLI version explicitly can't support it.
         const minimumVersion = exports.featureConfig[feature].minimumVersion;
         if (codeql && minimumVersion) {
             if (!(await util.codeQlVersionAbove(codeql, minimumVersion))) {
+                this.logger.debug(`Feature ${feature} is disabled because the CodeQL CLI version is older than the minimum ` +
+                    `version ${minimumVersion}.`);
                 return false;
             }
+            else {
+                this.logger.debug(`CodeQL CLI version ${await codeql.getVersion()} is newer than the minimum ` +
+                    `version ${minimumVersion} for feature ${feature}.`);
+            }
         }
         // Use this feature if user explicitly enables it via an environment variable.
         if (envVar === "true") {
+            this.logger.debug(`Feature ${feature} is enabled via the environment variable ${exports.featureConfig[feature].envVar}.`);
             return true;
         }
         // Ask the GitHub API if the feature is enabled.
-        return ((await this.gitHubFeatureFlags.getValue(feature)) ??
-            exports.featureConfig[feature].defaultValue);
+        const apiValue = await this.gitHubFeatureFlags.getValue(feature);
+        if (apiValue !== undefined) {
+            this.logger.debug(`Feature ${feature} is ${apiValue ? "enabled" : "disabled"} via the GitHub API.`);
+            return apiValue;
+        }
+        const defaultValue = exports.featureConfig[feature].defaultValue;
+        this.logger.debug(`Feature ${feature} is ${defaultValue ? "enabled" : "disabled"} due to its default value.`);
+        return defaultValue;
     }
 }
 exports.Features = Features;
diff --git a/lib/feature-flags.js.map b/lib/feature-flags.js.map
index 8525ed6101..eb207e920c 100644
--- a/lib/feature-flags.js.map
+++ b/lib/feature-flags.js.map
@@ -1 +1 @@
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\ No newline at end of file
+{"version":3,"file":"feature-flags.js","sourceRoot":"","sources":["../src/feature-flags.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;AAAA,uCAAyB;AACzB,2CAA6B;AAE7B,+CAAiC;AAEjC,6CAA4C;AAC5C,qCAA8E;AAC9E,0DAA4C;AAG5C,6CAA+B;AAE/B,MAAM,mCAAmC,GAAG,yBAAyB,CAAC;AACtE,MAAM,mCAAmC,GAAG,UAAU,CAAC;AAsBvD,IAAY,OAMX;AAND,WAAY,OAAO;IACjB,2DAAgD,CAAA;IAChD,2EAAgE,CAAA;IAChE,kFAAuE,CAAA;IACvE,iEAAsD,CAAA;IACtD,mEAAwD,CAAA;AAC1D,CAAC,EANW,OAAO,GAAP,eAAO,KAAP,eAAO,QAMlB;AAEY,QAAA,aAAa,GAGtB;IACF,CAAC,OAAO,CAAC,4BAA4B,CAAC,EAAE;QACtC,MAAM,EAAE,gCAAgC;QACxC,cAAc,EAAE,SAAS;QACzB,YAAY,EAAE,KAAK;KACpB;IACD,CAAC,OAAO,CAAC,oBAAoB,CAAC,EAAE;QAC9B,MAAM,EAAE,2BAA2B;QACnC,cAAc,EAAE,QAAQ;QACxB,YAAY,EAAE,IAAI;KACnB;IACD,CAAC,OAAO,CAAC,+BAA+B,CAAC,EAAE;QACzC,MAAM,EAAE,2CAA2C;QACnD,cAAc,EAAE,mDAA0C;QAC1D,YAAY,EAAE,KAAK;KACpB;IACD,CAAC,OAAO,CAAC,uBAAuB,CAAC,EAAE;QACjC,MAAM,EAAE,2BAA2B;QACnC,cAAc,EAAE,OAAO;QACvB,YAAY,EAAE,KAAK;KACpB;IACD,CAAC,OAAO,CAAC,wBAAwB,CAAC,EAAE;QAClC,MAAM,EAAE,mCAAmC;QAC3C,cAAc,EAAE,QAAQ;QACxB,YAAY,EAAE,KAAK;KACpB;CACF,CAAC;AAUW,QAAA,uBAAuB,GAAG,2BAA2B,CAAC;AAEnE;;;;GAIG;AACH,MAAa,QAAQ;IAGnB,YACE,aAAiC,EACjC,aAA4B,EAC5B,OAAe,EACE,MAAc;QAAd,WAAM,GAAN,MAAM,CAAQ;QAE/B,IAAI,CAAC,kBAAkB,GAAG,IAAI,kBAAkB,CAC9C,aAAa,EACb,aAAa,EACb,IAAI,CAAC,IAAI,CAAC,OAAO,EAAE,+BAAuB,CAAC,EAC3C,MAAM,CACP,CAAC;IACJ,CAAC;IAED,KAAK,CAAC,oBAAoB,CACxB,OAA2B;QAE3B,OAAO,MAAM,IAAI,CAAC,kBAAkB,CAAC,oBAAoB,CAAC,OAAO,CAAC,CAAC;IACrE,CAAC;IAED;;;;;;;;;;;OAWG;IACH,KAAK,CAAC,QAAQ,CAAC,OAAgB,EAAE,MAAe;QAC9C,IAAI,CAAC,MAAM,IAAI,qBAAa,CAAC,OAAO,CAAC,CAAC,cAAc,EAAE;YACpD,MAAM,IAAI,KAAK,CACb,8DAA8D,OAAO,2CAA2C,CACjH,CAAC;SACH;QAED,MAAM,MAAM,GAAG,CACb,OAAO,CAAC,GAAG,CAAC,qBAAa,CAAC,OAAO,CAAC,CAAC,MAAM,CAAC,IAAI,EAAE,CACjD,CAAC,iBAAiB,EAAE,CAAC;QAEtB,sFAAsF;QACtF,IAAI,MAAM,KAAK,OAAO,EAAE;YACtB,IAAI,CAAC,MAAM,CAAC,KAAK,CACf,WAAW,OAAO,6CAA6C,qBAAa,CAAC,OAAO,CAAC,CAAC,MAAM,GAAG,CAChG,CAAC;YACF,OAAO,KAAK,CAAC;SACd;QAED,yEAAyE;QACzE,MAAM,cAAc,GAAG,qBAAa,CAAC,OAAO,CAAC,CAAC,cAAc,CAAC;QAC7D,IAAI,MAAM,IAAI,cAAc,EAAE;YAC5B,IAAI,CAAC,CAAC,MAAM,IAAI,CAAC,kBAAkB,CAAC,MAAM,EAAE,cAAc,CAAC,CAAC,EAAE;gBAC5D,IAAI,CAAC,MAAM,CAAC,KAAK,CACf,WAAW,OAAO,wEAAwE;oBACxF,WAAW,cAAc,GAAG,CAC/B,CAAC;gBACF,OAAO,KAAK,CAAC;aACd;iBAAM;gBACL,IAAI,CAAC,MAAM,CAAC,KAAK,CACf,sBAAsB,MAAM,MAAM,CAAC,UAAU,EAAE,6BAA6B;oBAC1E,WAAW,cAAc,gBAAgB,OAAO,GAAG,CACtD,CAAC;aACH;SACF;QAED,8EAA8E;QAC9E,IAAI,MAAM,KAAK,MAAM,EAAE;YACrB,IAAI,CAAC,MAAM,CAAC,KAAK,CACf,WAAW,OAAO,4CAA4C,qBAAa,CAAC,OAAO,CAAC,CAAC,MAAM,GAAG,CAC/F,CAAC;YACF,OAAO,IAAI,CAAC;SACb;QAED,gDAAgD;QAChD,MAAM,QAAQ,GAAG,MAAM,IAAI,CAAC,kBAAkB,CAAC,QAAQ,CAAC,OAAO,CAAC,CAAC;QACjE,IAAI,QAAQ,KAAK,SAAS,EAAE;YAC1B,IAAI,CAAC,MAAM,CAAC,KAAK,CACf,WAAW,OAAO,OAChB,QAAQ,CAAC,CAAC,CAAC,SAAS,CAAC,CAAC,CAAC,UACzB,sBAAsB,CACvB,CAAC;YACF,OAAO,QAAQ,CAAC;SACjB;QAED,MAAM,YAAY,GAAG,qBAAa,CAAC,OAAO,CAAC,CAAC,YAAY,CAAC;QACzD,IAAI,CAAC,MAAM,CAAC,KAAK,CACf,WAAW,OAAO,OAChB,YAAY,CAAC,CAAC,CAAC,SAAS,CAAC,CAAC,CAAC,UAC7B,4BAA4B,CAC7B,CAAC;QACF,OAAO,YAAY,CAAC;IACtB,CAAC;CACF;AAlGD,4BAkGC;AAED,MAAM,kBAAkB;IAOtB,YACmB,aAAiC,EACjC,aAA4B,EAC5B,gBAAwB,EACxB,MAAc;QAHd,kBAAa,GAAb,aAAa,CAAoB;QACjC,kBAAa,GAAb,aAAa,CAAe;QAC5B,qBAAgB,GAAhB,gBAAgB,CAAQ;QACxB,WAAM,GAAN,MAAM,CAAQ;QAE/B,IAAI,CAAC,6BAA6B,GAAG,KAAK,CAAC,CAAC,2BAA2B;IACzE,CAAC;IAEO,4BAA4B,CAAC,CAAS;QAC5C,IACE,CAAC,CAAC,CAAC,UAAU,CAAC,mCAAmC,CAAC;YAClD,CAAC,CAAC,CAAC,QAAQ,CAAC,mCAAmC,CAAC,EAChD;YACA,OAAO,SAAS,CAAC;SAClB;QACD,MAAM,OAAO,GAAG,CAAC;aACd,SAAS,CACR,mCAAmC,CAAC,MAAM,EAC1C,CAAC,CAAC,MAAM,GAAG,mCAAmC,CAAC,MAAM,CACtD;aACA,OAAO,CAAC,IAAI,EAAE,GAAG,CAAC,CAAC;QAEtB,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,OAAO,CAAC,EAAE;YAC1B,IAAI,CAAC,MAAM,CAAC,OAAO,CACjB,yBAAyB,CAAC,iDAAiD,CAC5E,CAAC;YACF,OAAO,SAAS,CAAC;SAClB;QACD,OAAO,OAAO,CAAC;IACjB,CAAC;IAED,KAAK,CAAC,oBAAoB,CACxB,OAA2B;QAE3B,IAAI,OAAO,KAAK,IAAI,CAAC,aAAa,CAAC,MAAM,EAAE;YACzC,MAAM,uBAAuB,GAAG,MAAM,IAAI,CAAC,0BAA0B,EAAE,CAAC;YACxE,OAAO;gBACL,UAAU,EAAE,uBAAuB,CAAC,OAAO;gBAC3C,sBAAsB,EAAE,IAAI,CAAC,6BAA6B;oBACxD,CAAC,CAAC,uBAAuB,CAAC,sBAAsB;oBAChD,CAAC,CAAC,SAAS;gBACb,OAAO;aACR,CAAC;SACH;QACD,OAAO;YACL,UAAU,EAAE,QAAQ,CAAC,UAAU;YAC/B,OAAO,EAAE,QAAQ,CAAC,aAAa;YAC/B,OAAO;SACR,CAAC;IACJ,CAAC;IAED,KAAK,CAAC,0BAA0B;QAI9B,MAAM,QAAQ,GAAG,MAAM,IAAI,CAAC,cAAc,EAAE,CAAC;QAE7C,MAAM,6BAA6B,GAAG,MAAM,CAAC,OAAO,CAAC,QAAQ,CAAC;aAC3D,GAAG,CAAC,CAAC,CAAC,CAAC,EAAE,SAAS,CAAC,EAAE,EAAE,CACtB,SAAS,CAAC,CAAC,CAAC,IAAI,CAAC,4BAA4B,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,SAAS,CAC7D;aACA,MAAM,CAAC,CAAC,CAAC,EAAE,EAAE,CAAC,CAAC,KAAK,SAAS,CAAC;aAC9B,GAAG,CAAC,CAAC,CAAC,EAAE,EAAE,CAAC,CAAW,CAAC,CAAC;QAE3B,IAAI,6BAA6B,CAAC,MAAM,KAAK,CAAC,EAAE;YAC9C,6FAA6F;YAC7F,6FAA6F;YAC7F,2FAA2F;YAC3F,2DAA2D;YAC3D,EAAE;YACF,4FAA4F;YAC5F,2FAA2F;YAC3F,4FAA4F;YAC5F,uFAAuF;YACvF,8FAA8F;YAC9F,IAAI,CAAC,MAAM,CAAC,OAAO,CACjB,sFAAsF;gBACpF,oCAAoC,QAAQ,CAAC,UAAU,GAAG,CAC7D,CAAC;YACF,OAAO;gBACL,OAAO,EAAE,QAAQ,CAAC,UAAU;gBAC5B,sBAAsB,EAAE,IAAI,CAAC,6BAA6B;oBACxD,CAAC,CAAC,KAAK;oBACP,CAAC,CAAC,SAAS;aACd,CAAC;SACH;QAED,MAAM,aAAa,GAAG,6BAA6B,CAAC,MAAM,CACxD,CAAC,UAAU,EAAE,cAAc,EAAE,EAAE,CAC7B,cAAc,GAAG,UAAU,CAAC,CAAC,CAAC,cAAc,CAAC,CAAC,CAAC,UAAU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\ No newline at end of file
diff --git a/src/feature-flags.ts b/src/feature-flags.ts
index 8b91a4d538..34122475e1 100644
--- a/src/feature-flags.ts
+++ b/src/feature-flags.ts
@@ -94,7 +94,7 @@ export class Features implements FeatureEnablement {
     gitHubVersion: util.GitHubVersion,
     repositoryNwo: RepositoryNwo,
     tempDir: string,
-    logger: Logger
+    private readonly logger: Logger
   ) {
     this.gitHubFeatureFlags = new GitHubFeatureFlags(
       gitHubVersion,
@@ -135,6 +135,9 @@ export class Features implements FeatureEnablement {
 
     // Do not use this feature if user explicitly disables it via an environment variable.
     if (envVar === "false") {
+      this.logger.debug(
+        `Feature ${feature} is disabled via the environment variable ${featureConfig[feature].envVar}.`
+      );
       return false;
     }
 
@@ -142,19 +145,45 @@ export class Features implements FeatureEnablement {
     const minimumVersion = featureConfig[feature].minimumVersion;
     if (codeql && minimumVersion) {
       if (!(await util.codeQlVersionAbove(codeql, minimumVersion))) {
+        this.logger.debug(
+          `Feature ${feature} is disabled because the CodeQL CLI version is older than the minimum ` +
+            `version ${minimumVersion}.`
+        );
         return false;
+      } else {
+        this.logger.debug(
+          `CodeQL CLI version ${await codeql.getVersion()} is newer than the minimum ` +
+            `version ${minimumVersion} for feature ${feature}.`
+        );
       }
     }
 
     // Use this feature if user explicitly enables it via an environment variable.
     if (envVar === "true") {
+      this.logger.debug(
+        `Feature ${feature} is enabled via the environment variable ${featureConfig[feature].envVar}.`
+      );
       return true;
     }
+
     // Ask the GitHub API if the feature is enabled.
-    return (
-      (await this.gitHubFeatureFlags.getValue(feature)) ??
-      featureConfig[feature].defaultValue
+    const apiValue = await this.gitHubFeatureFlags.getValue(feature);
+    if (apiValue !== undefined) {
+      this.logger.debug(
+        `Feature ${feature} is ${
+          apiValue ? "enabled" : "disabled"
+        } via the GitHub API.`
+      );
+      return apiValue;
+    }
+
+    const defaultValue = featureConfig[feature].defaultValue;
+    this.logger.debug(
+      `Feature ${feature} is ${
+        defaultValue ? "enabled" : "disabled"
+      } due to its default value.`
     );
+    return defaultValue;
   }
 }