Comment 8 for bug 1787886

The php release upgrade is a bit odd indeed, or so I think. If you have the versioned packages installed only (like php7.0-curl without php-curl), then the release upgrade might not update those packages, and even remove some. One should always pay close attention to what the release upgrade tool is telling you when it gives a summary of the actions it is going to take.

I'm not familiar with php packaging, so I don't know if this is a known issue or not.