diff --git a/build-tools/packages/build-infrastructure/api-report/build-infrastructure.api.md b/build-tools/packages/build-infrastructure/api-report/build-infrastructure.api.md
index 0760471dde61..40b8c59544e3 100644
--- a/build-tools/packages/build-infrastructure/api-report/build-infrastructure.api.md
+++ b/build-tools/packages/build-infrastructure/api-report/build-infrastructure.api.md
@@ -6,6 +6,7 @@
 
 import type { Opaque } from 'type-fest';
 import type { PackageJson as PackageJson_2 } from 'type-fest';
+import * as semver from 'semver';
 import type { SetRequired } from 'type-fest';
 import { SimpleGit } from 'simple-git';
 
@@ -234,6 +235,9 @@ export interface Reloadable {
     reload(): void;
 }
 
+// @public
+export function setVersion<J extends PackageJson>(packages: IPackage[], version: semver.SemVer): Promise<void>;
+
 // @public
 export interface WorkspaceDefinition {
     directory: string;
diff --git a/build-tools/packages/build-infrastructure/src/index.ts b/build-tools/packages/build-infrastructure/src/index.ts
index a870d8379496..d76ae28fee41 100644
--- a/build-tools/packages/build-infrastructure/src/index.ts
+++ b/build-tools/packages/build-infrastructure/src/index.ts
@@ -50,30 +50,4 @@ export type {
 	IPackageManager,
 } from "./types.js";
 export { isIPackage, isIReleaseGroup } from "./types.js";
-
-// export {
-// 	filterPackages,
-// 	type FilterablePackage,
-// 	selectAndFilterPackages,
-// 	type GlobString,
-// 	AllPackagesSelectionCriteria,
-// 	EmptySelectionCriteria,
-// 	type PackageSelectionCriteria,
-// 	type PackageFilterOptions,
-// } from "./filter.js";
-// export {
-// 	FluidRepo as FluidRepoBase,
-// 	getAllDependenciesInRepo,
-// 	loadFluidRepo,
-// } from "./fluidRepo.js";
-// export {
-// 	getFiles,
-// 	findGitRootSync,
-// 	getMergeBaseRemote,
-// 	getRemote,
-// 	getChangedSinceRef,
-// } from "./git.js";
-// export { PackageBase } from "./package.js";
-// export { updatePackageJsonFile, updatePackageJsonFileAsync } from "./packageJsonUtils.js";
-// export { createPackageManager } from "./packageManagers.js";
-// export { setVersion } from "./versions.js";
+export { setVersion } from "./versions.js";
diff --git a/build-tools/packages/build-infrastructure/src/test/versions.test.ts b/build-tools/packages/build-infrastructure/src/test/versions.test.ts
new file mode 100644
index 000000000000..666eb9f22f03
--- /dev/null
+++ b/build-tools/packages/build-infrastructure/src/test/versions.test.ts
@@ -0,0 +1,72 @@
+/*!
+ * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+import { strict as assert } from "node:assert";
+import path from "node:path";
+
+import { expect } from "chai";
+import { afterEach, describe, it } from "mocha";
+import * as semver from "semver";
+import { simpleGit } from "simple-git";
+
+import { loadFluidRepo } from "../fluidRepo.js";
+import type { ReleaseGroupName, WorkspaceName } from "../types.js";
+import { setVersion } from "../versions.js";
+
+import { testDataPath, testRepoRoot } from "./init.js";
+
+const repo = loadFluidRepo(path.join(testDataPath, "./testRepo"));
+const main = repo.releaseGroups.get("main" as ReleaseGroupName);
+assert(main !== undefined);
+
+const group2 = repo.releaseGroups.get("group2" as ReleaseGroupName);
+assert(group2 !== undefined);
+
+const group3 = repo.releaseGroups.get("group3" as ReleaseGroupName);
+assert(group3 !== undefined);
+
+const secondWorkspace = repo.workspaces.get("second" as WorkspaceName);
+assert(secondWorkspace !== undefined);
+
+/**
+ * A git client rooted in the test repo. Used for resetting tests.
+ */
+const git = simpleGit(testRepoRoot);
+
+describe("setVersion", () => {
+	afterEach(async () => {
+		await git.checkout(["HEAD", "--", testRepoRoot]);
+		repo.reload();
+	});
+
+	it("release group", async () => {
+		// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+		await setVersion(main.packages, semver.parse("1.2.1")!);
+		repo.reload();
+
+		const allCorrect = main.packages.every((pkg) => pkg.version === "1.2.1");
+		expect(main.version).to.equal("1.2.1");
+		expect(allCorrect).to.be.true;
+	});
+
+	it("workspace", async () => {
+		// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+		await setVersion(secondWorkspace.packages, semver.parse("2.2.1")!);
+		repo.reload();
+
+		const allCorrect = secondWorkspace.packages.every((pkg) => pkg.version === "2.2.1");
+		expect(allCorrect).to.be.true;
+	});
+
+	it("repo", async () => {
+		const packages = [...repo.packages.values()];
+		// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+		await setVersion(packages, semver.parse("1.2.1")!);
+		repo.reload();
+
+		const allCorrect = packages.every((pkg) => pkg.version === "1.2.1");
+		expect(allCorrect).to.be.true;
+	});
+});
diff --git a/build-tools/packages/build-infrastructure/src/versions.ts b/build-tools/packages/build-infrastructure/src/versions.ts
new file mode 100644
index 000000000000..b4519ca6da7c
--- /dev/null
+++ b/build-tools/packages/build-infrastructure/src/versions.ts
@@ -0,0 +1,30 @@
+/*!
+ * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+import * as semver from "semver";
+
+import { updatePackageJsonFile } from "./packageJsonUtils.js";
+import type { IPackage, PackageJson } from "./types.js";
+
+/**
+ * Sets the version of a group of packages.
+ *
+ * Note that any loaded objects such as an IFluidRepo instance may need to be reloaded after calling this function.
+ *
+ * @param fluidRepo - The {@link IFluidRepo}.
+ * @param packages - An array of objects whose version should be updated.
+ * @param version - The version to set.
+ */
+export async function setVersion<J extends PackageJson>(
+	packages: IPackage[],
+	version: semver.SemVer,
+): Promise<void> {
+	const translatedVersion = version;
+	for (const pkg of packages) {
+		updatePackageJsonFile<J>(pkg.directory, (json) => {
+			json.version = translatedVersion.version;
+		});
+	}
+}