On Nov 8, 2019 also the Spanish DPA (Agencia espanola de proteccion de datos – AEPD) issued a guidance on cookies. The guidance (“Guia Sobre el Uso del las Cookies”, “Guia”) applies to cookies and other technologies.
Other published guidelines on cookies:
July 2019 CNIL: CNIL’s guidelines on cookies and tracking devices
March 2019 the Association of German data protection authorities published its position
See here an article that details the differences among these documents.
In March 2019, the Dutch DPA opined that cookie walls are not compliant with GDPR.
For more information Francesca Giannoni-Crystal