diff --git a/backend/scripts/openapi.ts b/backend/scripts/openapi.ts
index 0b9c08905084..e64c24e11e6c 100644
--- a/backend/scripts/openapi.ts
+++ b/backend/scripts/openapi.ts
@@ -1,5 +1,5 @@
 import { generateOpenApi } from "@ts-rest/open-api";
-import { contract } from "@monkeytype/contracts/index";
+import { COMPATIBILITY_CHECK, contract } from "@monkeytype/contracts/index";
 import { writeFileSync, mkdirSync } from "fs";
 import { EndpointMetadata, PermissionId } from "@monkeytype/contracts/util/api";
 import type { OpenAPIObject, OperationObject } from "openapi3-ts";
@@ -24,7 +24,7 @@ export function getOpenApi(): OpenAPIObject {
         title: "Monkeytype API",
         description:
           "Documentation for the endpoints provided by the Monkeytype API server.\n\nNote that authentication is performed with the Authorization HTTP header in the format `Authorization: ApeKey YOUR_APE_KEY`\n\nThere is a rate limit of `30 requests per minute` across all endpoints with some endpoints being more strict. Rate limit rates are shared across all ape keys.",
-        version: "2.0.0",
+        version: `2.${COMPATIBILITY_CHECK}.0`,
         termsOfService: "https://monkeytype.com/terms-of-service",
         contact: {
           name: "Support",
diff --git a/backend/src/middlewares/rate-limit.ts b/backend/src/middlewares/rate-limit.ts
index da5a5a8fa729..948c7b27d311 100644
--- a/backend/src/middlewares/rate-limit.ts
+++ b/backend/src/middlewares/rate-limit.ts
@@ -2,6 +2,7 @@ import MonkeyError from "../utils/error";
 import type { Response, NextFunction, Request } from "express";
 import { RateLimiterMemory } from "rate-limiter-flexible";
 import {
+  ipKeyGenerator,
   rateLimit,
   RateLimitRequestHandler,
   type Options,
@@ -40,12 +41,13 @@ export const customHandler = (
 };
 
 const getKey = (req: Request, _res: Response): string => {
-  return (
+  const ip =
     (req.headers["cf-connecting-ip"] as string) ||
     (req.headers["x-forwarded-for"] as string) ||
     (req.ip as string) ||
-    "255.255.255.255"
-  );
+    "255.255.255.255";
+  const key = ipKeyGenerator(ip);
+  return key;
 };
 
 const getKeyWithUid = (
diff --git a/frontend/src/ts/commandline/commandline-metadata.ts b/frontend/src/ts/commandline/commandline-metadata.ts
index 46bcb4ac237c..71b01937d653 100644
--- a/frontend/src/ts/commandline/commandline-metadata.ts
+++ b/frontend/src/ts/commandline/commandline-metadata.ts
@@ -1,7 +1,10 @@
 import * as ConfigSchemas from "@monkeytype/schemas/configs";
 import * as SoundController from "../controllers/sound-controller";
 import * as TestLogic from "../test/test-logic";
-import { getLanguageDisplayString } from "../utils/strings";
+import {
+  getLanguageDisplayString,
+  replaceUnderscoresWithSpaces,
+} from "../utils/strings";
 
 import { areUnsortedArraysEqual } from "../utils/arrays";
 import { Config } from "../config/store";
@@ -531,7 +534,7 @@ export const commandlineConfigMetadata: CommandlineConfigMetadataObject = {
   timerStyle: {
     subgroup: {
       options: "fromSchema",
-      display: (value) => value.replaceAll(/_/g, " "),
+      display: replaceUnderscoresWithSpaces,
     },
     alias: "timer",
   },
@@ -554,6 +557,7 @@ export const commandlineConfigMetadata: CommandlineConfigMetadataObject = {
   highlightMode: {
     subgroup: {
       options: "fromSchema",
+      display: replaceUnderscoresWithSpaces,
     },
   },
   typedEffect: {
@@ -639,6 +643,7 @@ export const commandlineConfigMetadata: CommandlineConfigMetadataObject = {
   keymapStyle: {
     subgroup: {
       options: "fromSchema",
+      display: replaceUnderscoresWithSpaces,
     },
     alias: "keyboard",
   },
diff --git a/frontend/src/ts/components/mount.tsx b/frontend/src/ts/components/mount.tsx
index 6a2a1d83b3a0..ada62540a141 100644
--- a/frontend/src/ts/components/mount.tsx
+++ b/frontend/src/ts/components/mount.tsx
@@ -22,9 +22,9 @@ import { LoginPage } from "./pages/login/LoginPage";
 import { ProfilePage } from "./pages/profile/ProfilePage";
 import { ProfileSearchPage } from "./pages/profile/ProfileSearchPage";
 import { SettingsPage } from "./pages/settings/SettingsPage";
+import { TestModesNotice } from "./pages/test/modes-notice/TestModesNotice";
 import { TestConfig } from "./pages/test/TestConfig";
 import { Popups } from "./popups/Popups";
-import { TestModesNotice } from "./test/modes-notice/TestModesNotice";
 
 const components: Record<string, () => JSXElement> = {
   footer: () => <Footer />,
diff --git a/frontend/src/ts/components/pages/settings/custom-setting/Theme.tsx b/frontend/src/ts/components/pages/settings/custom-setting/Theme.tsx
index 9b30d31eaa64..b7ad5a73c554 100644
--- a/frontend/src/ts/components/pages/settings/custom-setting/Theme.tsx
+++ b/frontend/src/ts/components/pages/settings/custom-setting/Theme.tsx
@@ -125,7 +125,7 @@ export function Theme(): JSXElement {
           onClick={() => {
             showSimpleModal({
               title: "Share custom theme",
-              schema: z.object({ includeBackground: z.boolean() }),
+              schema: z.object({ includeBackground: z.boolean().optional() }),
               inputs: {
                 includeBackground: {
                   label: "Include background link, size and filters",
diff --git a/frontend/src/ts/components/test/modes-notice/AverageNotice.tsx b/frontend/src/ts/components/pages/test/modes-notice/AverageNotice.tsx
similarity index 84%
rename from frontend/src/ts/components/test/modes-notice/AverageNotice.tsx
rename to frontend/src/ts/components/pages/test/modes-notice/AverageNotice.tsx
index 475981090066..e95adc8dfab4 100644
--- a/frontend/src/ts/components/test/modes-notice/AverageNotice.tsx
+++ b/frontend/src/ts/components/pages/test/modes-notice/AverageNotice.tsx
@@ -1,8 +1,8 @@
 import { createMemo, JSXElement } from "solid-js";
 
-import { useUserAverage10LiveQuery } from "../../../collections/results";
-import { getConfig } from "../../../config/store";
-import { getFormatting, isAuthenticated } from "../../../states/core";
+import { useUserAverage10LiveQuery } from "../../../../collections/results";
+import { getConfig } from "../../../../config/store";
+import { getFormatting, isAuthenticated } from "../../../../states/core";
 import { Notice } from "./Notice";
 
 export function AverageNotice(): JSXElement {
diff --git a/frontend/src/ts/components/test/modes-notice/Notice.tsx b/frontend/src/ts/components/pages/test/modes-notice/Notice.tsx
similarity index 76%
rename from frontend/src/ts/components/test/modes-notice/Notice.tsx
rename to frontend/src/ts/components/pages/test/modes-notice/Notice.tsx
index c2e5d42eb1e8..8b05c09f3244 100644
--- a/frontend/src/ts/components/test/modes-notice/Notice.tsx
+++ b/frontend/src/ts/components/pages/test/modes-notice/Notice.tsx
@@ -1,12 +1,12 @@
 import { ParentProps, Show } from "solid-js";
 
-import { CommandlineSubgroupKey } from "../../../commandline/types";
-import { showCommandLineForConfig } from "../../../states/core";
-import { FaSolidIcon } from "../../../types/font-awesome";
-import { cn } from "../../../utils/cn";
-import { OneOf } from "../../../utils/types";
-import { Button } from "../../common/Button";
-import { Fa } from "../../common/Fa";
+import { CommandlineSubgroupKey } from "../../../../commandline/types";
+import { showCommandLineForConfig } from "../../../../states/core";
+import { FaSolidIcon } from "../../../../types/font-awesome";
+import { cn } from "../../../../utils/cn";
+import { OneOf } from "../../../../utils/types";
+import { Button } from "../../../common/Button";
+import { Fa } from "../../../common/Fa";
 export function Notice(
   props: {
     when: boolean | undefined;
diff --git a/frontend/src/ts/components/test/modes-notice/PbNotice.tsx b/frontend/src/ts/components/pages/test/modes-notice/PbNotice.tsx
similarity index 72%
rename from frontend/src/ts/components/test/modes-notice/PbNotice.tsx
rename to frontend/src/ts/components/pages/test/modes-notice/PbNotice.tsx
index c4cd820e3121..baeff783213d 100644
--- a/frontend/src/ts/components/test/modes-notice/PbNotice.tsx
+++ b/frontend/src/ts/components/pages/test/modes-notice/PbNotice.tsx
@@ -1,12 +1,12 @@
 import { createMemo } from "solid-js";
 
-import { getConfig } from "../../../config/store";
-import { getLocalPB } from "../../../db";
-import { getFormatting, isAuthenticated } from "../../../states/core";
-import { getSnapshot } from "../../../states/snapshot";
-import { getCurrentQuote } from "../../../states/test";
-import { getActiveFunboxes } from "../../../test/funbox/list";
-import { getMode2 } from "../../../utils/misc";
+import { getConfig } from "../../../../config/store";
+import { getLocalPB } from "../../../../db";
+import { getFormatting, isAuthenticated } from "../../../../states/core";
+import { getSnapshot } from "../../../../states/snapshot";
+import { getCurrentQuote } from "../../../../states/test";
+import { getActiveFunboxes } from "../../../../test/funbox/list";
+import { getMode2 } from "../../../../utils/misc";
 import { Notice } from "./Notice";
 
 export function PbNotice() {
diff --git a/frontend/src/ts/components/test/modes-notice/TestModesNotice.tsx b/frontend/src/ts/components/pages/test/modes-notice/TestModesNotice.tsx
similarity index 94%
rename from frontend/src/ts/components/test/modes-notice/TestModesNotice.tsx
rename to frontend/src/ts/components/pages/test/modes-notice/TestModesNotice.tsx
index 8eddc5918479..11b2bae3222a 100644
--- a/frontend/src/ts/components/test/modes-notice/TestModesNotice.tsx
+++ b/frontend/src/ts/components/pages/test/modes-notice/TestModesNotice.tsx
@@ -1,14 +1,14 @@
 import { createMemo } from "solid-js";
 
-import { useActiveTagsLiveQuery } from "../../../collections/tags";
-import * as Commandline from "../../../commandline/commandline";
-import { getConfig } from "../../../config/store";
+import { useActiveTagsLiveQuery } from "../../../../collections/tags";
+import * as Commandline from "../../../../commandline/commandline";
+import { getConfig } from "../../../../config/store";
 import {
   getCustomTextIndicator,
   getFormatting,
   showCommandLineForConfig,
-} from "../../../states/core";
-import { hotkeys } from "../../../states/hotkeys";
+} from "../../../../states/core";
+import { hotkeys } from "../../../../states/hotkeys";
 import {
   getFocus,
   getLoadedChallenge,
@@ -17,14 +17,14 @@ import {
   isRepeated,
   wordsHaveNewline,
   wordsHaveTab,
-} from "../../../states/test";
-import { getActiveFunboxNames } from "../../../test/funbox/list";
-import { cn } from "../../../utils/cn";
+} from "../../../../states/test";
+import { getActiveFunboxNames } from "../../../../test/funbox/list";
+import { cn } from "../../../../utils/cn";
 import {
   getLanguageDisplayString,
   replaceUnderscoresWithSpaces,
-} from "../../../utils/strings";
-import { Kbd } from "../../common/Kbd";
+} from "../../../../utils/strings";
+import { Kbd } from "../../../common/Kbd";
 import { AverageNotice } from "./AverageNotice";
 import { Notice } from "./Notice";
 import { PbNotice } from "./PbNotice";
diff --git a/packages/contracts/src/results.ts b/packages/contracts/src/results.ts
index 2a818e0fe5e6..20729f6deb3f 100644
--- a/packages/contracts/src/results.ts
+++ b/packages/contracts/src/results.ts
@@ -66,8 +66,8 @@ export const AddResultRequestSchema = z.object({
 export type AddResultRequest = z.infer<typeof AddResultRequestSchema>;
 
 export const ReportCompletedEventMismatchRequestSchema = z.object({
-  notMatching: z.array(z.string().max(100)).max(50),
-  mismatchedKeys: z.array(z.string().max(100)).max(50),
+  notMatching: z.array(z.string().max(10000)).max(50),
+  mismatchedKeys: z.array(z.string().max(10000)).max(50),
   groupKey: z.string().max(500),
   language: LanguageSchema.optional(),
   mode: ModeSchema.optional(),