does travis do 8.1 yet?

seemingly no docs on this...

.travis.yml

@@ -1,19 +1,23 @@
 language: php
-sudo: false
+
 branches:
   except:
     - v0.5
     - v0.6
     - v0.6-PHP_5.2
     - documentation
+
 before_install:
   - docker run -d --rm -p 127.0.0.1:6379:6379 redis:3
+
 before_script:
   - phpenv config-rm xdebug.ini
   - composer self-update
   - composer install --no-interaction --prefer-source --dev
+
 script:
   - travis_retry vendor/bin/phpunit -c phpunit.xml.travisci
+
 matrix:
   fast_finish: true
   include:
@@ -32,6 +36,7 @@ matrix:
     - php: 7.3
     - php: 7.4
     - php: 8.0
+    - php: 8.1
     - php: nightly
   allow_failures:
     - php: nightly