diff --git a/bench/history.jsonl b/bench/history.jsonl
deleted file mode 100644
index 98dac89..0000000
--- a/bench/history.jsonl
+++ /dev/null
@@ -1 +0,0 @@
-{"timestamp":"2026-03-18T20:13:21Z","machine_id":"squirrel","git_tag":"v0.5.0","git_commit":"970cee2","runs":3,"servers":{"parrhesia-pg":{"connect_avg_ms":9.333333333333334,"connect_max_ms":12.333333333333334,"echo_tps":64030.333333333336,"echo_mibs":35.06666666666666,"event_tps":5015.333333333333,"event_mibs":3.4,"req_tps":6416.333333333333,"req_mibs":42.43333333333334},"parrhesia-memory":{"connect_avg_ms":7.666666666666667,"connect_max_ms":9.666666666666666,"echo_tps":93656.33333333333,"echo_mibs":51.26666666666667,"event_tps":1505.3333333333333,"event_mibs":1,"req_tps":14566.666666666666,"req_mibs":94.23333333333335},"nostr-rs-relay":{"connect_avg_ms":7,"connect_max_ms":10.333333333333334,"echo_tps":140767,"echo_mibs":77.06666666666666,"event_tps":2293.6666666666665,"event_mibs":1.5,"req_tps":3035.6666666666665,"req_mibs":19.23333333333333}}}
diff --git a/scripts/run_bench_compare.sh b/scripts/run_bench_compare.sh
index 094bef4..f0e15c9 100755
--- a/scripts/run_bench_compare.sh
+++ b/scripts/run_bench_compare.sh
@@ -298,7 +298,8 @@ for run in $(seq 1 "$RUNS"); do
 
 done
 
-node - "$WORK_DIR" "$RUNS" "$HAS_STRFRY" "$HAS_NOSTR_RS" <<'NODE'
+node - "$WORK_DIR" "$RUNS" "$HAS_STRFRY" "$HAS_NOSTR_RS" \
+     "$PARRHESIA_VERSION" "$STRFRY_VERSION" "$NOSTR_RS_RELAY_VERSION" "$NOSTR_BENCH_VERSION" <<'NODE'
 const fs = require("node:fs");
 const path = require("node:path");
 
@@ -306,6 +307,10 @@ const workDir = process.argv[2];
 const runs = Number(process.argv[3]);
 const hasStrfry = process.argv[4] === "1";
 const hasNostrRs = process.argv[5] === "1";
+const parrhesiaVersion = process.argv[6] || "";
+const strfryVersion = process.argv[7] || "";
+const nostrRsRelayVersion = process.argv[8] || "";
+const nostrBenchVersion = process.argv[9] || "";
 
 function parseLog(filePath) {
   const content = fs.readFileSync(filePath, "utf8");
@@ -502,6 +507,12 @@ if (process.env.BENCH_JSON_OUT) {
     };
   }
 
+  const versions = { parrhesia: parrhesiaVersion };
+  if (hasStrfry && strfryVersion) versions.strfry = strfryVersion;
+  if (hasNostrRs && nostrRsRelayVersion) versions["nostr-rs-relay"] = nostrRsRelayVersion;
+  if (nostrBenchVersion) versions["nostr-bench"] = nostrBenchVersion;
+  jsonSummary.versions = versions;
+
   fs.writeFileSync(
     process.env.BENCH_JSON_OUT,
     JSON.stringify(jsonSummary, null, 2) + "\n",
diff --git a/scripts/run_bench_update.sh b/scripts/run_bench_update.sh
index 7fa06d3..06e011f 100755
--- a/scripts/run_bench_update.sh
+++ b/scripts/run_bench_update.sh
@@ -70,7 +70,7 @@ const fs = require("node:fs");
 
 const [, , jsonOut, timestamp, machineId, gitTag, gitCommit, runsStr, historyFile] = process.argv;
 
-const servers = JSON.parse(fs.readFileSync(jsonOut, "utf8"));
+const { versions, ...servers } = JSON.parse(fs.readFileSync(jsonOut, "utf8"));
 
 const entry = {
   timestamp,
@@ -78,6 +78,7 @@ const entry = {
   git_tag: gitTag,
   git_commit: gitCommit,
   runs: Number(runsStr),
+  versions: versions || {},
   servers,
 };
 
@@ -127,19 +128,6 @@ const presentBaselines = baselineServerNames.filter(srv =>
   deduped.some(e => e.servers[srv])
 );
 
-// Compute averages for baseline servers (constant horizontal lines)
-const baselineAvg = {};
-for (const srv of presentBaselines) {
-  const vals = deduped.filter(e => e.servers[srv]).map(e => e.servers[srv]);
-  baselineAvg[srv] = {};
-  for (const metric of Object.keys(vals[0])) {
-    const valid = vals.map(v => v[metric]).filter(Number.isFinite);
-    baselineAvg[srv][metric] = valid.length > 0
-      ? valid.reduce((a, b) => a + b, 0) / valid.length
-      : NaN;
-  }
-}
-
 // Metrics to chart
 const chartMetrics = [
   { key: "event_tps",      label: "Event Throughput (TPS) — higher is better",    file: "event_tps.tsv",      ylabel: "TPS" },
@@ -161,7 +149,7 @@ for (const cm of chartMetrics) {
       e.servers["parrhesia-memory"]?.[cm.key] ?? "NaN",
     ];
     for (const srv of presentBaselines) {
-      row.push(baselineAvg[srv]?.[cm.key] ?? "NaN");
+      row.push(e.servers[srv]?.[cm.key] ?? "NaN");
     }
     rows.push(row.join("\t"));
   }
@@ -171,7 +159,7 @@ for (const cm of chartMetrics) {
 
 // Generate gnuplot plot commands (handles variable column counts)
 const serverLabels = ["parrhesia-pg", "parrhesia-memory"];
-for (const srv of presentBaselines) serverLabels.push(srv + " (avg)");
+for (const srv of presentBaselines) serverLabels.push(srv);
 
 const plotLines = [];
 for (const cm of chartMetrics) {
@@ -219,7 +207,7 @@ const fs = require("node:fs");
 
 const [, , jsonOut, readmePath] = process.argv;
 
-const servers = JSON.parse(fs.readFileSync(jsonOut, "utf8"));
+const { versions, ...servers } = JSON.parse(fs.readFileSync(jsonOut, "utf8"));
 const readme = fs.readFileSync(readmePath, "utf8");
 
 const pg = servers["parrhesia-pg"];