No, new restrictions on household visits and inter-county travel will only come into effect from midnight on St Stephen’s Day. Restrictions on non-essential travel between counties had been relaxed to allow family members gather for the Christmas holidays. The ban on inter-county travel will be reintroduced after St Stephen’s Day. Travel restrictions from Britain are to be extended until December 31st. The restrictions on inter-county travel and household visits were eased on December 18th, and initially not due to be reimposed until January 6th.
Source: The Irish Times December 22, 2020 14:16 UTC