diff --git a/packages/better-auth/package.json b/packages/better-auth/package.json
index 8198591764..35274c5a7b 100644
--- a/packages/better-auth/package.json
+++ b/packages/better-auth/package.json
@@ -6,7 +6,7 @@
     "scripts": {
         "build": "NODE_OPTIONS='--max-old-space-size=4000' tsup --clean --dts",
         "dev": "NODE_OPTIONS='--max-old-space-size=4000' tsup --watch --sourcemap",
-        "dev:dts": "NODE_OPTIONS='--max-old-space-size=4000' tsup --watch --dts",
+        "dev:dts": "NODE_OPTIONS='--max-old-space-size=8192' tsup --watch --dts",
         "test": "pnpm prisma:push && pnpm typecheck && vitest",
         "prisma:push": "prisma db push --schema src/adapters/prisma-adapter/test/schema.prisma",
         "test:adapters": "pnpm prisma:push && vitest adapters",
diff --git a/packages/better-auth/src/adapters/drizzle-adapter/index.ts b/packages/better-auth/src/adapters/drizzle-adapter/index.ts
index 05e8d65795..b2f352b04b 100644
--- a/packages/better-auth/src/adapters/drizzle-adapter/index.ts
+++ b/packages/better-auth/src/adapters/drizzle-adapter/index.ts
@@ -90,8 +90,14 @@ export const drizzleAdapter = (
 				schema,
 				usePlural: options.usePlural,
 			});
-			const res = await db.insert(schemaModel).values(val).returning();
+			const mutation = db.insert(schemaModel).values(val);
+			if (databaseType !== "mysql") return (await mutation.returning())[0];
 
+			await mutation;
+			const res = await db
+				.select()
+				.from(schemaModel)
+				.where(eq(schemaModel.id, (data.data as { id: string }).id));
 			return res[0];
 		},
 		async findOne(data) {
@@ -150,11 +156,17 @@ export const drizzleAdapter = (
 				usePlural: options.usePlural,
 			});
 			const wheres = whereConvertor(where, schemaModel);
-			const res = await db
+			const mutation = db
 				.update(schemaModel)
 				.set(update)
-				.where(...wheres)
-				.returning();
+				.where(...wheres);
+			if (databaseType !== "mysql") return (await mutation.returning())[0];
+
+			await mutation;
+			const res = await db
+				.select()
+				.from(schemaModel)
+				.where(eq(schemaModel.id, (data.update as { id: string }).id));
 			return res[0];
 		},
 		async delete(data) {
diff --git a/packages/better-auth/src/api/routes/session.ts b/packages/better-auth/src/api/routes/session.ts
index 6323c23b97..661b7e0813 100644
--- a/packages/better-auth/src/api/routes/session.ts
+++ b/packages/better-auth/src/api/routes/session.ts
@@ -12,25 +12,6 @@ import type {
 	Prettify,
 } from "../../types";
 
-/**
- * Generate a unique key for the request to cache the
- * request for 5 seconds for this specific request.
- *
- * This is to prevent reaching to database if getSession is
- * called multiple times for the same request
- */
-function getRequestUniqueKey(ctx: Context<any, any>, token: string): string {
-	if (!ctx.request) {
-		return "";
-	}
-	const { method, url, headers } = ctx.request;
-	const userAgent = ctx.request.headers.get("User-Agent") || "";
-	const ip = getIp(ctx.request) || "";
-	const headerString = JSON.stringify(headers);
-	const uniqueString = `${method}:${url}:${headerString}:${userAgent}:${ip}:${token}`;
-	return uniqueString;
-}
-
 export const getSession = <Option extends BetterAuthOptions>() =>
 	createAuthEndpoint(
 		"/session",
@@ -87,8 +68,7 @@ export const getSession = <Option extends BetterAuthOptions>() =>
 				 *
 				 * e.g. ({expiry date} - 30 days) + 1 hour
 				 *
-				 * inspired by: https://github.com/nextauthjs/next-auth/blob/main/packages/core/src/lib/
-				 * actions/session.ts
+				 * inspired by: https://github.com/nextauthjs/next-auth/blob/main/packages/core/src/lib/actions/session.ts
 				 */
 				const sessionIsDueToBeUpdatedDate =
 					session.session.expiresAt.valueOf() -
diff --git a/packages/better-auth/src/cli/utils/get-migration.ts b/packages/better-auth/src/cli/utils/get-migration.ts
index c56e805308..d088345067 100644
--- a/packages/better-auth/src/cli/utils/get-migration.ts
+++ b/packages/better-auth/src/cli/utils/get-migration.ts
@@ -65,6 +65,9 @@ export function matchType(
 	fieldType: FieldType,
 	dbType: KyselyDatabaseType,
 ) {
+	if (fieldType === "string[]" || fieldType === "number[]") {
+		return columnDataType.toLowerCase().includes("json");
+	}
 	const types = map[dbType];
 	const type = types[fieldType].map((t) => t.toLowerCase());
 	const matches = type.includes(columnDataType.toLowerCase());
@@ -169,6 +172,12 @@ export async function getMigrations(config: BetterAuthOptions) {
 		if (dbType === "mysql" && type === "string") {
 			return "varchar(255)";
 		}
+		if (dbType === "sqlite" && (type === "string[]" || type === "number[]")) {
+			return "text";
+		}
+		if (type === "string[]" || type === "number[]") {
+			return "jsonb";
+		}
 		return typeMap[type];
 	}
 	if (toBeAdded.length) {
diff --git a/packages/better-auth/src/db/field.ts b/packages/better-auth/src/db/field.ts
index 8ffb41a49b..382f5be01d 100644
--- a/packages/better-auth/src/db/field.ts
+++ b/packages/better-auth/src/db/field.ts
@@ -17,7 +17,12 @@ export type FieldAttribute<T extends FieldType = FieldType> = {
 	type: T;
 } & FieldAttributeConfig<T>;
 
-export type FieldType = "string" | "number" | "boolean" | "date";
+export type FieldType =
+	| "string"
+	| "number"
+	| "boolean"
+	| "date"
+	| `${"string" | "number"}[]`;
 
 export type InferValueType<T extends FieldType> = T extends "string"
 	? string
@@ -25,8 +30,10 @@ export type InferValueType<T extends FieldType> = T extends "string"
 		? number
 		: T extends "boolean"
 			? boolean
-			: T extends "date"
-				? Date
+			: T extends `${infer T}[]`
+				? T extends "string"
+					? string[]
+					: number[]
 				: never;
 
 export type InferFieldOutput<T extends FieldAttribute> =
@@ -58,7 +65,7 @@ export type FieldAttributeConfig<T extends FieldType = FieldType> = {
 	 * Note: This will not create a default value on the database level. It will only
 	 * be used when creating a new record.
 	 */
-	defaultValue?: InferValueType<T> | (() => InferValueType<T>);
+	defaultValue?: any;
 	/**
 	 * transform the value before storing it.
 	 */
diff --git a/packages/better-auth/src/db/to-zod.ts b/packages/better-auth/src/db/to-zod.ts
index 5a42f2b574..44e30fda0f 100644
--- a/packages/better-auth/src/db/to-zod.ts
+++ b/packages/better-auth/src/db/to-zod.ts
@@ -8,6 +8,12 @@ export function toZodSchema(fields: Record<string, FieldAttribute>) {
 			if (!field) {
 				return acc;
 			}
+			if (field.type === "string[]" || field.type === "number[]") {
+				return {
+					...acc,
+					[key]: z.array(field.type === "string[]" ? z.string() : z.number()),
+				};
+			}
 			let schema: ZodSchema = z[field.type]();
 			if (field?.required === false) {
 				schema = schema.optional();