diff --git a/.env.tric b/.env.tric
index b1e605a..b4ec16f 100644
--- a/.env.tric
+++ b/.env.tric
@@ -19,6 +19,8 @@ CLI_VERBOSITY=0
 # TRIC_CURRENT_PROJECT=the-events-calendar
 # When you `here` at the site level, all selected targets via `use` will have a relative path set.
 # TRIC_CURRENT_PROJECT_RELATIVE_PATH=
+# When you `use` on a supported subdirectory of a plugin, this stores the subdirectory name.
+#TRIC_CURRENT_PROJECT_SUBDIR=
 # The GitHub handle of the company to clone plugins from.
 TRIC_GITHUB_COMPANY_HANDLE=moderntribe
 
diff --git a/.gitignore b/.gitignore
index 5d79395..0a2df5e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,3 +25,6 @@ _plugins
 # Any .env.tric.* file created to override the tric cli tool configuration or to configure the runs.
 .env.tric.local
 .env.tric.run
+
+# Any .build-version file created by the tric cli tool.
+.build-version
diff --git a/changelog.md b/changelog.md
new file mode 100644
index 0000000..c95ee84
--- /dev/null
+++ b/changelog.md
@@ -0,0 +1,37 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.3.0] - TBD
+### Added
+
+- Prompt to `tric update` when container build version are out of sync from the tric version.
+- Output npm error log when one is generated.
+
+### Changed
+
+- Adjust pathing of subdirectories within the tric stack so that npm can find a `.git` directory when performing `npm install`.
+- Suppress the `fixuid` command output in the npm `docker-entrypoint.sh`.
+- Separated out poolable (passive) command functions from realtime command functions to prevent issues with interactivity.
+
+## [0.2.0] - 2020-06-24
+### Added
+
+- Added phpcs and phpcbf commands.
+- Added parallel processing of commands.
+
+### Changed
+
+- Changed `tric build` to `tric build-stack`.
+
+## [0.1.1] - 2020-05-26
+### Changed
+
+- Ensure `.htaccess` file is present in `_wordpress`.
+
+## [0.1.0] - 2020-05-25
+### Added
+
+- Initial version
diff --git a/containers/npm/docker-entrypoint.sh b/containers/npm/docker-entrypoint.sh
index 62fb168..3e4da13 100644
--- a/containers/npm/docker-entrypoint.sh
+++ b/containers/npm/docker-entrypoint.sh
@@ -3,6 +3,19 @@
 # This file is just a proxy to call the `npm` binary that will, but, take care of fixing file mode issues before.
 
 # If the `FIXUID` env var is set to `1`, default value, then fix UIDs.
-test "${FIXUID:-1}" != "0" && eval "$( fixuid )"
+test "${FIXUID:-1}" != "0" && eval "$( fixuid > /dev/null 2>&1 )"
 
-npm --prefix /project "$@"
+cd /project/${TRIC_CURRENT_PROJECT_SUBDIR}
+
+npm "$@"
+
+# Output error logs if present.
+if compgen -G "/home/node/.npm/_logs/*.log" > /dev/null; then
+  echo "---------------------------------------"
+  echo "Error log found. Here are the contents (excluding the overly verbose saveTree lines):"
+  echo "---------------------------------------"
+  cat /home/node/.npm/_logs/*.log | grep -v "saveTree"
+  echo "---------------------------------------"
+  echo "End of error log"
+  echo "---------------------------------------"
+fi
diff --git a/src/docker.php b/src/docker.php
index 55e60c9..e03409f 100644
--- a/src/docker.php
+++ b/src/docker.php
@@ -164,10 +164,11 @@ function tric_stack_array() {
  * Executes a docker-compose command in real time, printing the output as produced by the command.
  *
  * @param array<string> $options A list of options to initialize the wrapper.
+ * @param bool $is_realtime Whether the command should be run in real time (true) or passively (false).
  *
  * @return \Closure A closure that will run the process in real time and return the process exit status.
  */
-function docker_compose_realtime( array $options = [] ) {
+function docker_compose_process( array $options = [], $is_realtime = true ) {
 	setup_id();
 
 	$is_ci = is_ci();
@@ -182,7 +183,7 @@ function docker_compose_realtime( array $options = [] ) {
 		$host_ip = host_ip( 'Linux' );
 	}
 
-	return static function ( array $command = [], $prefix = null ) use ( $options, $host_ip, $is_ci ) {
+	return static function ( array $command = [], $prefix = null ) use ( $options, $host_ip, $is_ci, $is_realtime ) {
 		$command = 'docker-compose ' . implode( ' ', $options ) . ' ' . implode( ' ', $command );
 
 		if ( ! empty( $host_ip ) ) {
@@ -195,6 +196,30 @@ function docker_compose_realtime( array $options = [] ) {
 			$command = 'XDE=0 ' . $command;
 		}
 
-		return process_realtime( $command, $prefix );
+		return $is_realtime ? process_realtime( $command ) : process_passive( $command, $prefix );
 	};
 }
+
+/**
+ * Executes a docker-compose command in passive mode, printing the output as produced by the command.
+ *
+ * This approach is used for commands that can be run in a parallel or forked process without interactivity.
+ *
+ * @param array<string> $options A list of options to initialize the wrapper.
+ *
+ * @return \Closure A closure that will run the process in real time and return the process exit status.
+ */
+function docker_compose_passive( array $options = [] ) {
+	return docker_compose_process( $options, false );
+}
+
+/**
+ * Executes a docker-compose command in real time, printing the output as produced by the command.
+ *
+ * @param array<string> $options A list of options to initialize the wrapper.
+ *
+ * @return \Closure A closure that will run the process in real time and return the process exit status.
+ */
+function docker_compose_realtime( array $options = [] ) {
+	return docker_compose_process( $options, true );
+}
diff --git a/src/process.php b/src/process.php
index 2b719e0..87f6c80 100644
--- a/src/process.php
+++ b/src/process.php
@@ -34,12 +34,38 @@ function process( $command ) {
 /**
  * Runs a process in realtime, displaying its output.
  *
+ * Realtime processes are done without forking, have no need of prefixes, and support interactivity.
+ *
+ * @param string $command The command to run.
+ * @param string|null $prefix The prefix to place before all output.
+ *
+ * @return int The process exit status, `0` means ok.
+ */
+function process_realtime( $command ) {
+	debug( "Executing command: {$command}" );
+
+	echo PHP_EOL;
+
+	setup_terminal();
+
+	$clean_command = escapeshellcmd( $command );
+
+	passthru( $clean_command, $status );
+
+	return (int) $status;
+}
+
+/**
+ * Runs a process passively, displaying its output.
+ *
+ * Passive processes are ones that only need to dump their output.
+ *
  * @param string $command The command to run.
  * @param string|null $prefix The prefix to place before all output.
  *
  * @return int The process exit status, `0` means ok.
  */
-function process_realtime( $command, $prefix = null ) {
+function process_passive( $command, $prefix = null ) {
 	debug( "Executing command: {$command}" );
 
 	echo PHP_EOL;
diff --git a/src/tric.php b/src/tric.php
index f622d76..f3342e5 100644
--- a/src/tric.php
+++ b/src/tric.php
@@ -178,16 +178,20 @@ function setup_tric_env( $root_dir ) {
  *                       return value will always be a non empty string.
  */
 function tric_target( $require = true ) {
-	$using = getenv( 'TRIC_CURRENT_PROJECT' );
+	$using        = getenv( 'TRIC_CURRENT_PROJECT' );
+	$using_subdir = getenv( 'TRIC_CURRENT_PROJECT_SUBDIR' );
+	$using_full   = $using . ( $using_subdir ? '/' . $using_subdir : '' );
+
 	if ( $require ) {
-		return $using;
+		return $using_full;
 	}
-	if ( empty( $using ) ) {
+
+	if ( empty( $using_full ) ) {
 		echo magenta( "Use target not set; use the 'use' sub-command to set it.\n" );
 		exit( 1 );
 	}
 
-	return trim( $using );
+	return trim( $using_full );
 }
 
 /**
@@ -199,14 +203,20 @@ function tric_switch_target( $target ) {
 	$root                 = root();
 	$run_settings_file    = "{$root}/.env.tric.run";
 	$target_relative_path = '';
+	$subdir               = '';
 
 	if ( tric_here_is_site() ) {
 		$target_relative_path = get_target_relative_path( $target );
 	}
 
+	if ( false !== strpos( $target, '/' ) ) {
+		list( $target, $subdir ) = explode( '/', $target );
+	}
+
 	$env_values = [
 		'TRIC_CURRENT_PROJECT'               => $target,
 		'TRIC_CURRENT_PROJECT_RELATIVE_PATH' => $target_relative_path,
+		'TRIC_CURRENT_PROJECT_SUBDIR'        => $subdir,
 	];
 
 	write_env_file( $run_settings_file, $env_values, true );
@@ -416,6 +426,17 @@ function github_company_handle() {
 	return ! empty( $handle ) ? trim( $handle ) : 'moderntribe';
 }
 
+/**
+ * Runs a process in passive mode in tric stack and returns the exit status.
+ *
+ * This approach is used when running commands that can be done in parallel or forked processes.
+ *
+ * @return \Closure The process closure to start a real-time process using tric stack.
+ */
+function tric_passive() {
+	return docker_compose_passive( tric_stack_array() );
+}
+
 /**
  * Runs a process in tric stack and returns the exit status.
  *
@@ -446,10 +467,18 @@ function teardown_stack() {
  */
 function rebuild_stack() {
 	echo "Building the stack images...\n\n";
-	tric_realtime()( [ 'build-stack' ] );
+	tric_realtime()( [ 'build' ] );
+	write_build_version();
 	echo light_cyan( "\nStack images built.\n\n" );
 }
 
+/**
+ * Write the current CLI_VERSION to the build-version file
+ */
+function write_build_version() {
+	file_put_contents( TRIC_ROOT_DIR . '/.build-version', CLI_VERSION );
+}
+
 /**
  * Prints information about tric tool.
  */
@@ -765,7 +794,7 @@ function build_command_pool( string $base_command, array $command, array $sub_di
 			$prefix = "{$base_command}:" . yellow( $target );
 		}
 
-		$status = tric_realtime()( array_merge( [ 'run', '--rm', $base_command ], $command ), $prefix );
+		$status = tric_passive()( array_merge( [ 'run', '--rm', $base_command ], $command ), $prefix );
 
 		if ( 'target' !== $target ) {
 			tric_switch_target( $using );
@@ -918,3 +947,37 @@ function switch_plugin_branch( $branch, $plugin = null ) {
 		exit( 1 );
 	}
 }
+
+/**
+ * If tric stack is out of date, prompt for an execution of tric update.
+ */
+function maybe_prompt_for_update() {
+	$build_version = '0.0.1';
+	$cli_version   = CLI_VERSION;
+
+	if ( file_exists( TRIC_ROOT_DIR . '/.build-version' ) ) {
+		$build_version = file_get_contents( TRIC_ROOT_DIR . '/.build-version' );
+	}
+
+	// If there isn't a .env.tric.run, this is likely a fresh install. Bail.
+	if ( ! file_exists( TRIC_ROOT_DIR . '/.env.tric.run' ) ) {
+		return;
+	}
+
+	// If the version of the CLI is the same as the most recently built version, bail.
+	if ( version_compare( $build_version, $cli_version, '=' ) ) {
+		return;
+	}
+
+	echo magenta( "\n****************************************************************\n\n" );
+	echo yellow( "                  ____________    ____  __\n" );
+	echo yellow( "                  |   ____\   \  /   / |  |\n" );
+	echo yellow( "                  |  |__   \   \/   /  |  |\n" );
+	echo yellow( "                  |   __|   \_    _/   |  |\n" );
+	echo yellow( "                  |  |        |  |     |  |\n" );
+	echo yellow( "                  |__|        |__|     |__|\n\n" );
+	echo magenta( "Your tric containers are not up to date with the latest version.\n" );
+	echo magenta( "                  To update, please run:\n\n" );
+	echo yellow( "                         tric update\n\n" );
+	echo magenta( "****************************************************************\n" );
+}
diff --git a/src/utils.php b/src/utils.php
index c5c82df..46578e1 100644
--- a/src/utils.php
+++ b/src/utils.php
@@ -407,6 +407,11 @@ function write_env_file( $file, array $lines = [], $update = false ) {
 		return "{$key}={$value}";
 	}, array_keys( $new_lines ), $new_lines ) );
 
+	// If this is the first time creating the .env.tric.run file, assume this is the first run and place the CLI version in `.build-version`.
+	if ( false !== strpos( $file, '.env.tric.run' ) && ! file_exists( $file ) ) {
+		write_build_version();
+	}
+
 	$put = file_put_contents( $file, $data );
 
 	if ( false === $put ) {
diff --git a/src/wordpress.php b/src/wordpress.php
index c526e3b..df7bd67 100644
--- a/src/wordpress.php
+++ b/src/wordpress.php
@@ -81,7 +81,7 @@ static function ( SplFileInfo $file ) {
 		}
 	);
 
-	$allowed_subdirs = [ 'common' ];
+	$allowed_subdirs = get_allowed_use_subdirectories();
 	foreach ( iterator_to_array( $dir ) as $key => $value ) {
 		$basename                 = basename( $key );
 		$dirs[ $basename ] = $value;
@@ -95,3 +95,12 @@ static function ( SplFileInfo $file ) {
 
 	return $dirs;
 }
+
+/**
+ * Returns the list of allowed subdirectories for tric use.
+ *
+ * @return array<string> Allowed subdirectories for use.
+ */
+function get_allowed_use_subdirectories() {
+	return [ 'common' ];
+}
diff --git a/tric b/tric
index 124688b..e294854 100755
--- a/tric
+++ b/tric
@@ -14,6 +14,7 @@ use function Tribe\Test\args;
 use function Tribe\Test\colorize;
 use function Tribe\Test\root;
 use function Tribe\Test\light_cyan;
+use function Tribe\Test\maybe_prompt_for_update;
 use function Tribe\Test\setup_tric_env;
 
 // Set up the argument parsing function.
@@ -23,7 +24,7 @@ $args = args( [
 ] );
 
 $cli_name = basename( $argv[0] );
-const CLI_VERSION = '0.2.0';
+const CLI_VERSION = '0.3.0';
 
 $cli_header = implode( ' - ', [
 	light_cyan( $cli_name ) . ' version ' . light_cyan( CLI_VERSION ),
@@ -90,10 +91,15 @@ $subcommand = $args( 'subcommand', 'help' );
 
 $cli_name = basename( $argv[0] );
 
+if ( ! in_array( $subcommand, [ 'help', 'update'] ) ) {
+	maybe_prompt_for_update();
+}
+
 switch ( $subcommand ) {
 	default:
 	case 'help':
 		echo $help_message;
+		maybe_prompt_for_update();
 		break;
 	case 'airplane-mode':
 	case 'build-prompt':
diff --git a/tric-stack.yml b/tric-stack.yml
index 84547f7..4d16580 100644
--- a/tric-stack.yml
+++ b/tric-stack.yml
@@ -146,7 +146,7 @@ services:
       # XDH=$(ip route | grep docker0 | awk '{print $9}') docker-compose ...
       XDEBUG_CONFIG: "idekey=${XDK:-tric} remote_enable=${XDE:-1} remote_host=${XDH:-host.docker.internal} remote_port=${XDP:-9001}"
       # Move to the target directory before running the command from the plugins directory.
-      CODECEPTION_PROJECT_DIR: /var/www/html/wp-content/plugins/${TRIC_CURRENT_PROJECT:-test}
+      CODECEPTION_PROJECT_DIR: /var/www/html/wp-content/plugins/${TRIC_CURRENT_PROJECT:-test}/${TRIC_CURRENT_PROJECT_SUBDIR}
       # When running the container in shell mode (using the tric `shell` command), then use this CC configuration.
       CODECEPTION_SHELL_CONFIG: "-c codeception.tric.yml"
       # After the WordPress container comes online, wait a further 3s to give it some boot-up time.
@@ -180,7 +180,7 @@ services:
       FIXUID: "${FIXUID:-1}"
     volumes:
       # Set the current plugin as project.
-      - ${TRIC_PLUGINS_DIR}/${TRIC_CURRENT_PROJECT:-test}:/project:cached
+      - ${TRIC_PLUGINS_DIR}/${TRIC_CURRENT_PROJECT:-test}/${TRIC_CURRENT_PROJECT_SUBDIR}:/project:cached
       # Share SSH keys with the container to pull from private repositories.
       - ${DOCKER_RUN_SSH_AUTH_SOCK}:/ssh-agent:ro
 
@@ -191,6 +191,7 @@ services:
     user: "${DOCKER_RUN_UID:-}:${DOCKER_RUN_GID:-}"
     environment:
       FIXUID: ${FIXUID:-1}
+      TRIC_CURRENT_PROJECT_SUBDIR: ${TRIC_CURRENT_PROJECT_SUBDIR}
     volumes:
       # Set the current plugin as project.
       - ${TRIC_PLUGINS_DIR}/${TRIC_CURRENT_PROJECT:-test}:/project:cached
@@ -205,7 +206,7 @@ services:
     working_dir: /project
     volumes:
       # Set the current plugin as project.
-      - ${TRIC_PLUGINS_DIR}/${TRIC_CURRENT_PROJECT:-test}:/project:cached
+      - ${TRIC_PLUGINS_DIR}/${TRIC_CURRENT_PROJECT:-test}/${TRIC_CURRENT_PROJECT_SUBDIR}:/project:cached
       # Share SSH keys with the container to pull from private repositories.
       - ${DOCKER_RUN_SSH_AUTH_SOCK}:/ssh-agent:ro