diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 548bf3d..7393dcf 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -150,6 +150,9 @@ jobs:
           GH_TOKEN: ${{ github.token }}
           RELEASE_TAG: ${{ github.ref_name }}
         run: |
+          gh release delete "$RELEASE_TAG" \
+            --repo "$GITHUB_REPOSITORY" \
+            --yes 2>/dev/null || true
           gh release create "$RELEASE_TAG" \
             release/fossmark-*.tar.gz \
             release/SHA256SUMS \
diff --git a/README.md b/README.md
index 888b1f3..1bdfb77 100644
--- a/README.md
+++ b/README.md
@@ -80,12 +80,8 @@ The exact filename depends on the host platform and architecture.
 At startup, fossmark reports the detected CPU model, physical cores, logical
 threads, installed memory, operating system, architecture, and compiler. At the
 end it prints the composite scores and total benchmark duration, then asks
-whether to upload the result. Uploading is opt-in and requires an API token in
-the environment:
-
-```sh
-FOSSMARK_API_TOKEN=your_token ./dist/fossmark-linux-amd64
-```
+whether to upload the result. Uploading is anonymous and opt-in; no account or
+API token is required.
 
 The API base URL is defined by `FM_API_BASE_URL` in `src/main.c` and defaults to
 `https://fossbench.net`. A release build can override it without editing the
diff --git a/dist/fossmark-linux-amd64 b/dist/fossmark-linux-amd64
index 0ccdd04..882107c 100755
Binary files a/dist/fossmark-linux-amd64 and b/dist/fossmark-linux-amd64 differ
diff --git a/src/main.c b/src/main.c
index c6c68bb..54926a1 100644
--- a/src/main.c
+++ b/src/main.c
@@ -758,7 +758,7 @@ static void json_escape(const char *src, char *dst, size_t cap)
 
 #if !defined(_WIN32)
 static int upload_results(const struct system_info *info, double score,
-			  uint64_t duration_ms, const char *token)
+			  uint64_t duration_ms)
 {
 	char host[256], port[16], path[512], payload[2048], request[4096];
 	char cpu[512], os[512], compiler[256], response[512];
@@ -805,8 +805,8 @@ static int upload_results(const struct system_info *info, double score,
 	if (payload_len < 0 || (size_t)payload_len >= sizeof(payload)) return 0;
 	request_len = snprintf(request, sizeof(request),
 		"POST %s HTTP/1.1\r\nHost: %s:%s\r\nContent-Type: application/json\r\n"
-		"Authorization: Bearer %s\r\nContent-Length: %d\r\nConnection: close\r\n\r\n%s",
-		path, host, port, token, payload_len, payload);
+		"Content-Length: %d\r\nConnection: close\r\n\r\n%s",
+		path, host, port, payload_len, payload);
 	if (request_len < 0 || (size_t)request_len >= sizeof(request)) return 0;
 
 	memset(&hints, 0, sizeof(hints)); hints.ai_socktype = SOCK_STREAM; hints.ai_family = AF_UNSPEC;
@@ -984,16 +984,11 @@ int main(int argc, char **argv)
 		fflush(stdout);
 		if (fgets(answer, sizeof(answer), stdin) &&
 		    (answer[0] == 'y' || answer[0] == 'Y')) {
-			const char *token = getenv("FOSSMARK_API_TOKEN");
-			if (!token || !*token) {
-				fprintf(stderr, "  Upload skipped: set FOSSMARK_API_TOKEN to your API token.\n");
-			} else {
 #if defined(_WIN32)
-				fprintf(stderr, "  Upload is not yet supported on Windows.\n");
+			fprintf(stderr, "  Upload is not yet supported on Windows.\n");
 #else
-				upload_results(&system_info, multicore_score, duration_ms, token);
+			upload_results(&system_info, multicore_score, duration_ms);
 #endif
-			}
 		} else {
 			printf("  Result was not uploaded.\n");
 		}