Complex sentence: A general release may release any claims known or unknown that the releasor may have against the releasee, the release may also be very specific, i.e. dealing with specific acts between the parties and not applying to any other acts.
Split into simpler sentences: A general release may release any claims known or unknown that the releasor may have against the releasee. The release may also be very specific, i.e. dealing with specific acts between the parties and not applying to any other acts.