A joint initiative of Indonesia and neighboring country Malaysia (which also introduced the similar Joint Rumi Spelling system), the aim of the change in 1972 was to introduce greater harmonization of the Indonesian and Malay-language orthographies.
The new EYD system, adopted on the 27th anniversary of Indonesia's independence on 17 August 1972, was decreed by President Suharto on the previous day.
[6] It was formerly known as the Indonesian Spelling System (Ejaan Bahasa Indonesia, EBI), often referred to as the Indonesian Spelling System General Guidelines (Pedoman Umum Ejaan Bahasa Indonesia, PUEBI), between 2015 and 2022.
The writing of di- and ke- (affixes) can be distinguished from di and ke (prepositions), where di- and ke- are written together with the words that follow it, for example diambil, kehendak (taken, desire), while di and ke are written separately with the words that follow it, for example di rumah, ke pasar (at home, to the market).
[7] Reduplication, mostly used in plural form of words, has to be fully written with letters, so the use of the superscripted number "2" as used in the Republican Spelling is no longer valid.