Although royal births are now announced on social media, the tradition of announcing the birth outside of Buckingham Palace on an ornate golden easel still remains.
"A notice has been placed on the forecourt of Buckingham Palace following the announcement of the birth of The Duke and Duchess of Cambridge's third child", Kensington Palace explained via Twitter.
The royal family shared the news on Twitter shortly after the Duchess was announced to have given birth, with the family's account posting a video of the announcement being placed on the easel. The bulletin was brought out of the Privy Purse Door and will remain on display for approximately 24 hours.
A large Union Flag was also raised over Buckingham Palace and a State Standard over Windsor Castle to mark the birth. It will then be sent to the Privy Council Office to be recorded for official records.
The notice reads, "Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 a.m. today. Her Royal Highness and her child are both doing well", the palace confirmed in a statement. "The baby weighs 8lbs 7 oz". It is signed at the hospital by Kate's doctors and then taken back to the palace by vehicle.
Hear ye, hear ye!