The eighth banknote series will gradually be replaced by the ninth in a process scheduled to take place between 2016 and 2019. The first denomination in the new series – the 50-franc note – has been in circulation since 12 April 2016. The 20-franc note was released on 17 May 2017. The remaining banknotes will subsequently be issued at half-yearly or yearly intervals. The SNB will announce each new date well in advance. Issuance of the entire new series is expected to be completed by 2019. All notes from the eighth banknote series will remain valid until further notice.