you can find details on bugs already fixed as well as known issues for every of the PAN-OS versions, those are found next to their respective software updates, here: https://support.paloaltonetworks.com/Updates/SoftwareUpdates
You can check release notes for 7.0.5 and it will show all bugs fixed from 7.0.1 onwards, as well as known issues not fixed yet, including decryption problems (if link doesn't work, just go to above "softwareUpdates" link and get them from there).
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