The newest ones that I have seen are from 2021, I have seen an example from every year from their release in 1999 all around Australia, took me ages to find one from 2020 though, (finally found one in Brisbane earlier this year). The newest installation I have seen was in 2023 (2018 model) right here on Commonwealth ave, replacing a 2013 roadster. Funny thing is, we had a huge led upgrade in 2018 - 2019 and started installing led in 2016! The Ares that they were installed in was the largest hidden area in the ACT.
Ask
@Al_M, he'll now.