diff --git a/WP_CLI_CS/ruleset.xml b/WP_CLI_CS/ruleset.xml
index 1d9cf9ed4..b04b28a6c 100644
--- a/WP_CLI_CS/ruleset.xml
+++ b/WP_CLI_CS/ruleset.xml
@@ -73,10 +73,17 @@
 		<exclude name="Generic.PHP.BacktickOperator"/>
 
 		<!-- We want to stick with short array syntax for WP-CLI. -->
-		<exclude name="Generic.Arrays.DisallowShortArraySyntax"/>
+		<exclude name="Universal.Arrays.DisallowShortArraySyntax.Found"/>
 
 		<!-- Keep short ternaries around for WP-CLI. -->
-		<exclude name="WordPress.PHP.DisallowShortTernary"/>
+		<exclude name="Universal.Operators.DisallowShortTernary.Found"/>
+
+		<!-- Allow filesystem operations because WordPress APIs may not be available -->
+		<exclude name="WordPress.WP.AlternativeFunctions.file_system_operations_file_put_contents" />
+		<exclude name="WordPress.WP.AlternativeFunctions.file_system_operations_mkdir" />
+		<exclude name="WordPress.WP.AlternativeFunctions.file_system_operations_rmdir" />
+		<exclude name="WordPress.WP.AlternativeFunctions.rename_rename" />
+		<exclude name="WordPress.WP.AlternativeFunctions.unlink_unlink" />
 
 	</rule>
 
diff --git a/composer.json b/composer.json
index 451a30f30..9566eb9c5 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         "wp-cli/core-command": "^1 || ^2",
         "wp-cli/eval-command": "^1 || ^2",
         "wp-cli/wp-cli": "^2.5.1",
-        "wp-coding-standards/wpcs": "^2.3.0",
+        "wp-coding-standards/wpcs": "^3",
         "yoast/phpunit-polyfills": "^1.0.3"
     },
     "require-dev": {
diff --git a/src/Context/FeatureContext.php b/src/Context/FeatureContext.php
index 9d87e2296..fab618e65 100644
--- a/src/Context/FeatureContext.php
+++ b/src/Context/FeatureContext.php
@@ -1061,7 +1061,7 @@ private static function log_run_times_after_scenario( $scope ) {
 		$scenario_key = self::get_scenario_key( $scope );
 		if ( $scenario_key ) {
 			self::$scenario_run_times[ $scenario_key ] += microtime( true );
-			self::$scenario_count++;
+			++self::$scenario_count;
 			if ( count( self::$scenario_run_times ) > self::$num_top_scenarios ) {
 				arsort( self::$scenario_run_times );
 				array_pop( self::$scenario_run_times );
@@ -1094,11 +1094,9 @@ private static function dir_diff_copy( $upd_dir, $src_dir, $cop_dir ) {
 						throw new RuntimeException( sprintf( "Failed to create copy directory '%s': %s. " . __FILE__ . ':' . __LINE__, $cop_file, $error['message'] ) );
 					}
 					self::copy_dir( $upd_file, $cop_file );
-				} else {
-					if ( ! copy( $upd_file, $cop_file ) ) {
+				} elseif ( ! copy( $upd_file, $cop_file ) ) {
 						$error = error_get_last();
 						throw new RuntimeException( sprintf( "Failed to copy '%s' to '%s': %s. " . __FILE__ . ':' . __LINE__, $upd_file, $cop_file, $error['message'] ) );
-					}
 				}
 			} elseif ( is_dir( $upd_file ) ) {
 				self::dir_diff_copy( $upd_file, $src_file, $cop_file );
@@ -1229,10 +1227,11 @@ private static function log_proc_method_run_time( $key, $start_time ) {
 			self::$proc_method_run_times[ $key ] = [ 0, 0 ];
 		}
 		self::$proc_method_run_times[ $key ][0] += $run_time;
-		self::$proc_method_run_times[ $key ][1]++;
+		++self::$proc_method_run_times[ $key ][1];
 	}
 }
 
+// phpcs:ignore Universal.Files.SeparateFunctionsFromOO.Mixed
 function wp_cli_behat_env_debug( $message ) {
 	if ( ! getenv( 'WP_CLI_TEST_DEBUG_BEHAT_ENV' ) ) {
 		return;
@@ -1301,7 +1300,6 @@ function wpcli_bootstrap_behat_feature_context() {
 
 	wp_cli_behat_env_debug( "Project config file location: {$project_config}" );
 	wp_cli_behat_env_debug( "Project config:\n{$contents}" );
-
 }
 
 wpcli_bootstrap_behat_feature_context();
diff --git a/src/Context/Support.php b/src/Context/Support.php
index 3e310a443..6c9f3dd76 100644
--- a/src/Context/Support.php
+++ b/src/Context/Support.php
@@ -25,14 +25,14 @@ protected function assert_not_regex( $regex, $actual ) {
 	}
 
 	protected function assert_equals( $expected, $actual ) {
-		// phpcs:ignore WordPress.PHP.StrictComparisons.LooseComparison -- Deliberate loose comparison.
+		// phpcs:ignore Universal.Operators.StrictComparisons.LooseNotEqual -- Deliberate loose comparison.
 		if ( $expected != $actual ) {
 			throw new Exception( 'Actual value: ' . var_export( $actual, true ) );
 		}
 	}
 
 	protected function assert_not_equals( $expected, $actual ) {
-		// phpcs:ignore WordPress.PHP.StrictComparisons.LooseComparison -- Deliberate loose comparison.
+		// phpcs:ignore Universal.Operators.StrictComparisons.LooseEqual -- Deliberate loose comparison.
 		if ( $expected == $actual ) {
 			throw new Exception( 'Actual value: ' . var_export( $actual, true ) );
 		}
@@ -200,7 +200,7 @@ protected function check_that_csv_string_contains_values( $actual_csv, $expected
 				);
 
 				if ( $actual_row === $expected_row ) {
-					$expected_result++;
+					++$expected_result;
 				}
 			}
 		}
diff --git a/src/Context/WhenStepDefinitions.php b/src/Context/WhenStepDefinitions.php
index 42f430eb6..a727e8c7f 100644
--- a/src/Context/WhenStepDefinitions.php
+++ b/src/Context/WhenStepDefinitions.php
@@ -62,4 +62,3 @@ public function when_i_run_the_previous_command_again( $mode ) {
 		list( $this->result->stdout, $this->email_sends ) = $this->wpcli_tests_capture_email_sends( $this->result->stdout );
 	}
 }
-
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 9cf26389d..73b760328 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -59,4 +59,3 @@ function wpcli_tests_include_config( array $config_filenames = [] ) {
 		'.phpunit.xml.dist',
 	]
 );
-