South African Sign Language became the twelfth official language through the Constitution Eighteenth Amendment Bill

Background

South Africa, whose Parliament and Constitutional Court are in the news this week, recognises South African Sign Language as an official language.
The National Assembly adopted the Constitution Eighteenth Amendment Bill on 2 May 2023, amending section 6 of the Constitution.
Parliament reported that the amendment was adopted without opposition, on a report of the Portfolio Committee on Justice and Constitutional Development.
President Cyril Ramaphosa signed the South African Sign Language Bill into law on 19 July 2023 at the Union Buildings in Tshwane, giving effect to the amendment of section 6(1).
The other official languages are Sepedi, Sesotho, Setswana, siSwati, Tshivenda, Xitsonga, Afrikaans, English, isiNdebele, isiXhosa and isiZulu.
That makes twelve official languages in all.