At its recent meeting in Cardiff, the Bishops Conference issued a statement inviting all Catholics, from the feast of Pentecost next weekend, to return to Mass attendance in church on Sundays and Holy Days – you can read it here . This invitation recognises changes in Covid-19 infections in recent years and assures us that coming to Mass in church is at least as safe as many other things which people are now doing with fewer or no restrictions (there are of course still some restrictions in place when you come to Mass). Some find the language of obligation helpful, others don’t; the bishops’ statement should be seen as an invitation.
Of course, as has always been the case, if you are ill or physically impeded from coming to Mass, you are not committing a sin if you don’t come.
Fr Ashley