Sydney Board, these artists were - Sara van der Heide, Henna-Riikka Halonen, Ane Hjort Guttu, Hadley+Maxwell, Shannon Te Ao, Yael Bartana. By 26 February 2014, 41 Biennale artists in total had signed this open letter. On 26 February 2014, five artists (Libia Castro, Ólafur Ólafsson, Charlie Sofo, Gabrielle de Vietri & Ahmet Öğüt) withdrew their participation in the Biennale of Sydney in protest. This protest was due to the artists' perception that 'Transfield' was profiting from the mandatory detention of asylum seekers and the Biennale's refusal to cut sponsorship ties with Transfield as requested by the artists. On 5 March 2014, four more artists (Agnieszka Polska, Sara van der Heide, Nicoline van Harskamp and Nathan Gray) withdrew their participation in the Biennale of Sydney. In March, the Board of The Biennale of Sydney announced that it would cut ties with Transfield, following the growing criticism from artists and refugee activists. The majority of boycotting artists returned to participate in the 19th Biennale with the exception of Australian artists Charlie Sofo and Gabrielle de Vietri. 20th Biennale of Sydney (2016) The 20th Biennale of Sydney was curated by Stephanie Rosenthal and took place in 2016. 21st Biennale of Sydney (2018) The 21st Biennale of Sydney, titled SUPERPOSITION, was curated by Mami Kataoka. It included soft sculpture works by the Yarrenyty Arltere Artists of Alice Springs and burial baskets woven by Yvonne Koolmatrie. 22nd Biennale of Sydney (2020) The 22nd Biennale of Sydney, titled NIRIN, was presented under the artistic direction of Brook Andrew. NIRIN was an Artist- & First Nations-led Biennale, celebrating First Nations artists. The programme was centered around seven themes: Dhaagun (‘earth’: sovereignty and working together); Bagaray-Bang (‘healing’); Yirawy-Dhuray (‘yam-connection’: food); Gurray (‘transformation’); Muriguwal Giiland (‘different stories’); Ngawal-Guyungan (‘powerful ideas’: the power of objects); and Bila (‘river’: environment), and it featured works by 101 artists and collectives, from 36 countries including for the first time Nepal, Georgia, Afghanistan, Sudan and Ecuador. The works were presented in six venues: Cockatoo Island, Art Gallery of New South Wales, the Museum of Contemporary Art (MCA), the National Art School, Artspace and Campbelltown Arts Centre. NIRIN went online after it was closed ten days after it opened due to Covid-19 restrictions. The founder of New Zealand collective FAFSWAG Tanu Gogo outlined concerns this pivot created for them including 'data-sovereignty, safe-space and intellectual property' but addressed their reprioritization to enable presentation and presented a