language: php

php:
    - 7.2
    - 7.3
    - 7.4

env:
    - JMS=0.12
    - JMS=1.0
    - JMS=2.0
    - JMS=3.0

before_install:
    - composer selfupdate
    - composer require jms/serializer=^$JMS --no-interaction --prefer-dist