prepare materials for teaching the language in school, with the support of the ILS (Indigenous Language Support program). A series of workshops resulted in the production of a CD-ROM called Dieri Yawarra and a print resource, "for community and school language revitalisation and second language learning". This was followed by a second, more ambitious, project in 2009, called Ngayana Dieri Yawarra Yathayilha! ("Let us all speak the Dieri language now!") to develop language lessons for schools at all levels (still a work in progress ). In early 2013, Austin spent some months in Australia and travelled to Port Augusta to run language revitalisation workshops with Wilson and the DAC Group. In the same year, he published a draft dictionary in 2013, and revised his 1981 grammar, making it free online. Willsden Primary School in Port Augusta introduced a Diyari language programme, with members of the Warren family (who had long been collaborators with Austin) involved. An online blog was started and has proven a popular resource. Language revitalisation projects continue, with some input from the Melbourne-based Network for Linguistic Diversity (RNLD). In 2015, Austin wrote that Ethnologue'''s assertion in its 16th edition that Diyari was extinct was incorrect, and on the contrary,... there are today a number of people living today in South Australia and western New South Wales who grew up speaking Diyari as their first language and whose knowledge and linguistic ability ranges from fluent native speaker to semi-speaker to partial speaker. There are hundreds of people who know at least some words and expressions in Diyari... and a large group of young people who identify themselves as Dieri and are keen to learn about the language and their culture, history and heritage. Ethnologue update In its latest (22nd) edition in 2019, Ethnologue'' shows the population of speakers as 5 (2016 census), ethnic population 600, and status as "8b (Nearly extinct)". It further notes that the DAC started preparing Dieri language material for schools in 2009 and that the Mobile Language Team (MLT) worked with the DAC to complete a Dieri language learner’s guide in 2017. Phonology Vowels Consonants Several of the nasals and laterals are allophonically prestopped. The voiced alveolar stop may have trilled release depending on dialect. Peter Austin (1988) suggests that this is due to Yandruwanhdha influence. The voiced retroflex stop often becomes a tap between vowels. The stop is in complementary distribution with both