Sigur Rós have released a special version of their latest album ‘ÁTTA’. Titled ‘ÁTTA Heimr Edition’ – it is available now for members of the band’s online fan community.The Icelanders describe the new release as a “high quality immersive digital album format” and it was made available exclusively through the membership group Heimr on September 29.The original version of ‘ÁTTA’ was announced as a surprise by the band in June, marking their first new studio album in 10 years.