According to a press release, on 14 September 2020, the National Bank of Ethiopia introduced new 10-, 50-, and 100-birr notes which are like the preceding issues, but with new color schemes and enhanced security features. The preceding issues will circulate in parallel for a period of three months, after
B331e: Like B331d, but new date (2007/2015). Prefix CG. Courtesy of Claudio Marana.