diff --git a/.github/workflows/test-long-all.yml b/.github/workflows/test-long-all.yml
index 4b43f3001e..182fcededb 100644
--- a/.github/workflows/test-long-all.yml
+++ b/.github/workflows/test-long-all.yml
@@ -17,7 +17,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
         version: ['stable', 'insiders']
-        go: ['1.15', '1.16', '1.17']
+        go: ['1.15', '1.16', '1.17', '1.18.0-beta1']
 
     steps:
       - name: Clone repository
diff --git a/.github/workflows/test-long.yml b/.github/workflows/test-long.yml
index 91f1a761a9..79784f57d9 100644
--- a/.github/workflows/test-long.yml
+++ b/.github/workflows/test-long.yml
@@ -16,7 +16,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest] # TODO: reenable macos-latest
         version: ['stable']
-        go: ['1.15', '1.16', '1.17']
+        go: ['1.15', '1.16', '1.17', '1.18.0-beta1']
 
     steps:
       - name: Clone repository
diff --git a/test/gopls/extension.test.ts b/test/gopls/extension.test.ts
index 9a09f5a221..47a67a9895 100644
--- a/test/gopls/extension.test.ts
+++ b/test/gopls/extension.test.ts
@@ -11,6 +11,7 @@ import { LanguageClient } from 'vscode-languageclient/node';
 import { getGoConfig } from '../../src/config';
 import { buildLanguageClient, BuildLanguageClientOption, buildLanguageServerConfig } from '../../src/goLanguageServer';
 import sinon = require('sinon');
+import { getGoVersion, GoVersion } from '../../src/util';
 
 // FakeOutputChannel is a fake output channel used to buffer
 // the output of the tested language client in an in-memory
@@ -132,7 +133,11 @@ suite('Go Extension Tests With Gopls', function () {
 	const testdataDir = path.join(projectDir, 'test', 'testdata');
 	const env = new Env();
 
-	suiteSetup(async () => await env.setup(path.resolve(testdataDir, 'gogetdocTestData', 'test.go')));
+	let goVersion: GoVersion;
+	suiteSetup(async () => {
+		await env.setup(path.resolve(testdataDir, 'gogetdocTestData', 'test.go'));
+		goVersion = await getGoVersion();
+	});
 	suiteTeardown(() => env.teardown());
 
 	this.afterEach(function () {
@@ -155,7 +160,9 @@ suite('Go Extension Tests With Gopls', function () {
 			[
 				'func Println()',
 				new vscode.Position(19, 6),
-				'func fmt.Println(a ...interface{}) (n int, err error)',
+				goVersion.lt('1.18')
+					? 'func fmt.Println(a ...interface{}) (n int, err error)'
+					: 'func fmt.Println(a ...any) (n int, err error)',
 				'Println formats '
 			],
 			['func print()', new vscode.Position(23, 4), 'func print(txt string)', 'This is an unexported function ']
diff --git a/test/integration/extension.test.ts b/test/integration/extension.test.ts
index c3b703e2ad..d7bb17eeeb 100644
--- a/test/integration/extension.test.ts
+++ b/test/integration/extension.test.ts
@@ -37,7 +37,9 @@ import { testCurrentFile } from '../../src/goTest';
 import {
 	getBinPath,
 	getCurrentGoPath,
+	getGoVersion,
 	getImportPath,
+	GoVersion,
 	handleDiagnosticErrors,
 	ICheckResult,
 	isVendorSupported
@@ -57,6 +59,7 @@ const testAll = (isModuleMode: boolean) => {
 	let generateFunctionTestSourcePath: string;
 	let generatePackageTestSourcePath: string;
 	let previousEnv: any;
+	let goVersion: GoVersion;
 
 	suiteSetup(async () => {
 		previousEnv = Object.assign({}, process.env);
@@ -69,6 +72,8 @@ const testAll = (isModuleMode: boolean) => {
 			assert.ok(gopath, 'Cannot run tests if GOPATH is not set as environment variable');
 			return;
 		}
+		goVersion = await getGoVersion();
+
 		console.log(`Using GOPATH: ${gopath}`);
 
 		repoPath = isModuleMode ? fs.mkdtempSync(path.join(os.tmpdir(), 'legacy')) : path.join(gopath, 'src', 'test');
@@ -225,13 +230,16 @@ standard output. Spaces are always added between operands and a newline is
 appended. It returns the number of bytes written and any write error
 encountered.
 `;
+		const printlnSig = goVersion.lt('1.18')
+			? 'Println(a ...interface{}) (n int, err error)'
+			: 'Println(a ...any) (n int, err error)';
 
 		const testCases: [vscode.Position, string, string, string[]][] = [
 			[
 				new vscode.Position(19, 13),
-				'Println(a ...interface{}) (n int, err error)',
+				printlnSig,
 				printlnDoc,
-				['a ...interface{}']
+				[goVersion.lt('1.18') ? 'a ...interface{}' : 'a ...any']
 			],
 			[
 				new vscode.Position(23, 7),
@@ -272,12 +280,16 @@ encountered.
 Spaces are always added between operands and a newline is appended.
 It returns the number of bytes written and any write error encountered.
 `;
+		const printlnSig = goVersion.lt('1.18')
+			? 'Println(a ...interface{}) (n int, err error)'
+			: 'Println(a ...any) (n int, err error)';
+
 		const testCases: [vscode.Position, string, string, string[]][] = [
 			[
 				new vscode.Position(19, 13),
-				'Println(a ...interface{}) (n int, err error)',
+				printlnSig,
 				printlnDoc,
-				['a ...interface{}']
+				[goVersion.lt('1.18') ? 'a ...interface{}' : 'a ...any']
 			],
 			[
 				new vscode.Position(23, 7),
@@ -314,6 +326,10 @@ standard output. Spaces are always added between operands and a newline is
 appended. It returns the number of bytes written and any write error
 encountered.
 `;
+		const printlnSig = goVersion.lt('1.18')
+			? 'Println func(a ...interface{}) (n int, err error)'
+			: 'Println func(a ...any) (n int, err error)';
+
 		const testCases: [vscode.Position, string | null, string | null][] = [
 			// [new vscode.Position(3,3), '/usr/local/go/src/fmt'],
 			[new vscode.Position(0, 3), null, null], // keyword
@@ -322,7 +338,7 @@ encountered.
 			[new vscode.Position(28, 16), null, null], // inside a number
 			[new vscode.Position(22, 5), 'main func()', '\n'],
 			[new vscode.Position(40, 23), 'import (math "math")', null],
-			[new vscode.Position(19, 6), 'Println func(a ...interface{}) (n int, err error)', printlnDoc],
+			[new vscode.Position(19, 6), printlnSig, printlnDoc],
 			[
 				new vscode.Position(23, 4),
 				'print func(txt string)',
@@ -350,6 +366,10 @@ encountered.
 Spaces are always added between operands and a newline is appended.
 It returns the number of bytes written and any write error encountered.
 `;
+		const printlnSig = goVersion.lt('1.18')
+			? 'func Println(a ...interface{}) (n int, err error)'
+			: 'func Println(a ...any) (n int, err error)';
+
 		const testCases: [vscode.Position, string | null, string | null][] = [
 			[new vscode.Position(0, 3), null, null], // keyword
 			[new vscode.Position(23, 11), null, null], // inside a string
@@ -366,7 +386,7 @@ It returns the number of bytes written and any write error encountered.
 				'package math',
 				'Package math provides basic constants and mathematical functions.\n\nThis package does not guarantee bit-identical results across architectures.\n'
 			],
-			[new vscode.Position(19, 6), 'func Println(a ...interface{}) (n int, err error)', printlnDoc],
+			[new vscode.Position(19, 6), printlnSig, printlnDoc],
 			[
 				new vscode.Position(27, 14),
 				'type ABC struct {\n    a int\n    b int\n    c int\n}',
@@ -384,7 +404,13 @@ It returns the number of bytes written and any write error encountered.
 		await testHoverProvider(config, testCases);
 	});
 
-	test('Linting - concurrent process cancelation', async () => {
+	test('Linting - concurrent process cancelation', async function () {
+		if (!goVersion.lt('1.18')) {
+			// TODO(hyangah): reenable test when staticcheck for go1.18 is released
+			// https://github.com/dominikh/go-tools/issues/1145
+			this.skip();
+		}
+
 		const util = require('../../src/util');
 		const processutil = require('../../src/utils/processUtils');
 		sinon.spy(util, 'runTool');
@@ -413,7 +439,12 @@ It returns the number of bytes written and any write error encountered.
 		);
 	});
 
-	test('Linting - lint errors with multiple open files', async () => {
+	test('Linting - lint errors with multiple open files', async function () {
+		if (!goVersion.lt('1.18')) {
+			// TODO(hyangah): reenable test when staticcheck for go1.18 is released
+			// https://github.com/dominikh/go-tools/issues/1145
+			this.skip();
+		}
 		// handleDiagnosticErrors may adjust the lint errors' ranges to make the error more visible.
 		// This adjustment applies only to the text documents known to vscode. This test checks
 		// the adjustment is made consistently across multiple open text documents.
@@ -448,7 +479,13 @@ It returns the number of bytes written and any write error encountered.
 		assert.deepStrictEqual(file1Diagnostics[0], file2Diagnostics[0]);
 	});
 
-	test('Error checking', async () => {
+	test('Error checking', async function () {
+		if (!goVersion.lt('1.18')) {
+			// TODO(hyangah): reenable test when staticcheck for go1.18 is released
+			// https://github.com/dominikh/go-tools/issues/1145
+			this.skip();
+		}
+
 		const config = Object.create(getGoConfig(), {
 			vetOnSave: { value: 'package' },
 			vetFlags: { value: ['-all'] },
@@ -901,10 +938,14 @@ standard output. Spaces are always added between operands and a newline is
 appended. It returns the number of bytes written and any write error
 encountered.
 `;
+		const printlnSig = goVersion.lt('1.18')
+			? 'func(a ...interface{}) (n int, err error)'
+			: 'func(a ...any) (n int, err error)';
+
 		const provider = new GoCompletionItemProvider();
 		const testCases: [vscode.Position, string, string | null, string | null][] = [
 			[new vscode.Position(7, 4), 'fmt', 'fmt', null],
-			[new vscode.Position(7, 6), 'Println', 'func(a ...interface{}) (n int, err error)', printlnDoc]
+			[new vscode.Position(7, 6), 'Println', printlnSig, printlnDoc]
 		];
 		const uri = vscode.Uri.file(path.join(fixturePath, 'baseTest', 'test.go'));
 		const textDocument = await vscode.workspace.openTextDocument(uri);
@@ -980,7 +1021,10 @@ encountered.
 				if (!item1) {
 					assert.fail('Suggestion with label "Print" not found in test case withFunctionSnippet.');
 				}
-				assert.equal((<vscode.SnippetString>item1.insertText).value, 'Print(${1:a ...interface{\\}})');
+				assert.equal(
+					(<vscode.SnippetString>item1.insertText).value,
+					goVersion.lt('1.18') ? 'Print(${1:a ...interface{\\}})' : 'Print(${1:a ...any})'
+				);
 			});
 		const withFunctionSnippetNotype = provider
 			.provideCompletionItemsInternal(
diff --git a/test/integration/goDebug.test.ts b/test/integration/goDebug.test.ts
index b9b67fe0c5..f48bc38d63 100644
--- a/test/integration/goDebug.test.ts
+++ b/test/integration/goDebug.test.ts
@@ -57,6 +57,7 @@ suite('GoDebugSession Tests', async () => {
 		process.env.GOPATH = '/usr/gopath';
 		process.env.GOROOT = '/usr/goroot';
 		remoteSourcesAndPackages = new RemoteSourcesAndPackages();
+		// eslint-disable-next-line prettier/prettier
 		fileSystem = ({ existsSync: () => false } as unknown) as typeof fs;
 		delve.program = workspaceFolder;
 		delve.isApiV1 = false;
@@ -287,6 +288,7 @@ suite('RemoteSourcesAndPackages Tests', () => {
 	let remoteSourcesAndPackages: RemoteSourcesAndPackages;
 	let delve: Delve;
 	setup(() => {
+		// eslint-disable-next-line prettier/prettier
 		delve = ({ callPromise: () => ({}), isApiV1: false } as unknown) as Delve;
 		remoteSourcesAndPackages = new RemoteSourcesAndPackages();
 	});
@@ -399,7 +401,13 @@ const testAll = (ctx: Mocha.Context, isDlvDap: boolean) => {
 	): Promise<cp.ChildProcess> {
 		const serverFolder = path.join(DATA_ROOT, 'helloWorldServer');
 		const toolPath = getBinPath('dlv');
-		const args = ['debug', '--api-version=2', '--headless', `--listen=127.0.0.1:${dlvPort}`];
+		const args = [
+			'debug',
+			'--check-go-version=false',
+			'--api-version=2',
+			'--headless',
+			`--listen=127.0.0.1:${dlvPort}`
+		];
 		if (acceptMultiClient) {
 			args.push('--accept-multiclient');
 		}
@@ -2170,6 +2178,12 @@ const testAll = (ctx: Mocha.Context, isDlvDap: boolean) => {
 			config['showLog'] = true;
 			config['trace'] = 'verbose';
 		}
+
+		// disable version check (like in dlv-dap).
+		if (!isDlvDap) {
+			const dlvFlags = config['dlvFlags'] || [];
+			config['dlvFlags'] = ['--check-go-version=false'].concat(dlvFlags);
+		}
 		// Give each test a distinct debug binary. If a previous test
 		// and a new test use the same binary location, it is possible
 		// that the second test could build the binary, and then the