I've just noted that the Spanish Government website has changed from giving a date of their latest update to 'constantly under review'.
They now appear to be letting anyone in as long as they have a vacination certificate.
For the purposes of the provisions of articles 6.1.e) and 14 of the Regulation (EU) 2016/399 of the European Parliament and of the Council of 9 March 2016 on a Union Code on the rules governing the movement of persons across borders (Schengen Borders Code), any third-country national will be subject to denial of entry, for reasons of public order or public health, unless they belong to one of the following categories:
k) Persons with a vaccination certificate, that the Ministry of Health recognizes for this purpose, after verification by the health authorities, as well as their accompanying minors (under 12 years of age).
Us Brits still also qualify under (j)
https://www.mscbs.gob.es/en/profesionales/saludPublica/ccayes/alertasActual/nCov/spth.htm
