diff --git a/server/src/server/router/ir/beatoraja/auth.test.ts b/server/src/server/router/ir/beatoraja/auth.test.ts
index 3e63ac63b..59bdf4be7 100644
--- a/server/src/server/router/ir/beatoraja/auth.test.ts
+++ b/server/src/server/router/ir/beatoraja/auth.test.ts
@@ -34,7 +34,7 @@ t.test("#ValidateIRClientVersion", (t) => {
 	t.test("Should accept 2.0.0", async (t) => {
 		const { res } = await expMiddlewareMock(ValidateIRClientVersion, {
 			headers: {
-				"X-TachiIR-Version": "2.0.0",
+				"X-TachiIR-Version": "v2.0.0",
 			},
 		});
 
diff --git a/server/src/server/router/ir/beatoraja/auth.ts b/server/src/server/router/ir/beatoraja/auth.ts
index 76203ac64..a315a2fb7 100644
--- a/server/src/server/router/ir/beatoraja/auth.ts
+++ b/server/src/server/router/ir/beatoraja/auth.ts
@@ -3,7 +3,7 @@ import { RequestHandler } from "express";
 export const ValidateIRClientVersion: RequestHandler = (req, res, next) => {
 	const header = req.header("X-TachiIR-Version");
 
-	if (header !== "2.0.0") {
+	if (header !== "v2.0.0") {
 		return res.status(400).json({
 			success: false,
 			description: "Invalid TachiIR client version.",
diff --git a/server/src/server/router/ir/beatoraja/charts/router.test.ts b/server/src/server/router/ir/beatoraja/charts/router.test.ts
index c01338cdd..38c3086ca 100644
--- a/server/src/server/router/ir/beatoraja/charts/router.test.ts
+++ b/server/src/server/router/ir/beatoraja/charts/router.test.ts
@@ -35,7 +35,7 @@ t.test("GET /ir/beatoraja/charts/:chartSHA256/scores", (t) => {
 
 		const res = await mockApi
 			.get(`/ir/beatoraja/charts/${GAZER_SHA256}/scores`)
-			.set("X-TachiIR-Version", "2.0.0");
+			.set("X-TachiIR-Version", "v2.0.0");
 
 		t.equal(res.status, 200);
 
@@ -45,7 +45,7 @@ t.test("GET /ir/beatoraja/charts/:chartSHA256/scores", (t) => {
 	t.test("Should return 404 if chart doesnt exist", async (t) => {
 		const res = await mockApi
 			.get(`/ir/beatoraja/charts/INVALID/scores`)
-			.set("X-TachiIR-Version", "2.0.0");
+			.set("X-TachiIR-Version", "v2.0.0");
 
 		t.equal(res.status, 404);
 
diff --git a/server/src/server/router/ir/beatoraja/router.test.ts b/server/src/server/router/ir/beatoraja/router.test.ts
index 79afc06f2..b0a177887 100644
--- a/server/src/server/router/ir/beatoraja/router.test.ts
+++ b/server/src/server/router/ir/beatoraja/router.test.ts
@@ -25,7 +25,7 @@ t.test("POST /ir/beatoraja/submit-score", (t) => {
 	t.test("Should import a valid score.", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-score")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(scoreReq);
 
@@ -62,7 +62,7 @@ t.test("POST /ir/beatoraja/submit-score", (t) => {
 	t.test("Should return an error if invalid client.", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-score")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(deepmerge(scoreReq, { client: "INVALID" }));
 
@@ -77,7 +77,7 @@ t.test("POST /ir/beatoraja/submit-score", (t) => {
 	t.test("Should return an error if invalid score.", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-score")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(deepmerge(scoreReq, { score: { exscore: -1 } }));
 
@@ -92,7 +92,7 @@ t.test("POST /ir/beatoraja/submit-score", (t) => {
 	t.test("Should return an error if invalid chart.", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-score")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(deepmerge(scoreReq, { chart: { title: null } }));
 
@@ -107,7 +107,7 @@ t.test("POST /ir/beatoraja/submit-score", (t) => {
 	t.test("Should defer a chart to the orphan queue if not found.", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-score")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(
 				deepmerge(scoreReq, {
@@ -168,7 +168,7 @@ t.test("POST /ir/beatoraja/submit-score", (t) => {
 
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-score")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(
 				deepmerge(scoreReq, {
@@ -181,7 +181,7 @@ t.test("POST /ir/beatoraja/submit-score", (t) => {
 
 		const res2 = await mockApi
 			.post("/ir/beatoraja/submit-score")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer token2")
 			.send(
 				deepmerge(scoreReq, {
@@ -200,7 +200,7 @@ t.test("POST /ir/beatoraja/submit-score", (t) => {
 
 		const res3 = await mockApi
 			.post("/ir/beatoraja/submit-score")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer token3")
 			.send(
 				deepmerge(scoreReq, {
@@ -235,7 +235,7 @@ t.test("POST /ir/beatoraja/submit-score", (t) => {
 	t.test("Should require authentication.", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-score")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.send(scoreReq);
 
 		t.equal(res.status, 401);
@@ -246,7 +246,7 @@ t.test("POST /ir/beatoraja/submit-score", (t) => {
 	t.test("Should reject non-corresponding tokens.", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-score")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer invalid_token")
 
 			.send(scoreReq);
@@ -329,7 +329,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should accept a valid clear", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(courseScore);
 
@@ -347,7 +347,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should silently reject a fail", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(deepmerge(courseScore, { score: { clear: "Failed" } }));
 
@@ -361,7 +361,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should reject scores with no charts", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(deepmerge(courseScore, { course: { charts: [] } }, { arrayMerge: (d, s) => s }));
 
@@ -375,7 +375,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should reject scores with invalid chart documents", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(deepmerge(courseScore, { course: { charts: [1, 2, 3, 4] } }));
 
@@ -389,7 +389,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should reject scores with too many chart documents", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(
 				deepmerge(courseScore, {
@@ -407,7 +407,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should reject scores not on LN mode", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(
 				deepmerge(courseScore, {
@@ -427,7 +427,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should reject too few constraints", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(
 				deepmerge(
@@ -451,7 +451,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should reject non-array constraints", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(
 				deepmerge(
@@ -475,7 +475,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should reject too many constraints", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(
 				deepmerge(
@@ -499,7 +499,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should reject invalid constraints", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(
 				deepmerge(
@@ -523,7 +523,7 @@ t.test("POST /ir/beatoraja/submit-course", (t) => {
 	t.test("Should reject invalid constraints for 3", async (t) => {
 		const res = await mockApi
 			.post("/ir/beatoraja/submit-course")
-			.set("X-TachiIR-Version", "2.0.0")
+			.set("X-TachiIR-Version", "v2.0.0")
 			.set("Authorization", "Bearer mock_token")
 			.send(
 				deepmerge(