Monarch on horseback
This year’s Trooping the Colour will see the King riding a horse in the procession.
The first major change, which has been confirmed by the Palace, will see Charles join in on the military parade.
It will be the first time that a monarch has ridden in the parade since 1986, the last time the late Queen did so.
The late Queen used Burmese, who was her favourite steed for Trooping. When the horse moved to Windsor for retirement, the late Queen decided she would ride via carriage in the future instead of training another.
Edward’s riding debut
Prince Edward, who is the King’s youngest brother, is tipped to join the parade on horseback.
The new Duke of Edinburgh is expected to join his royal siblings and nephew Prince William on horseback for the first time.
Edward is currently the colonel for the newly-formed London Guards, who will be present during this weekend’s event.
Royal uniform change
As Prince William was seen braving the warm weather in full military attire last week, another poignant change will be in the royals’ uniforms on Saturday.
For his first time as Colonel of the Welsh Guards, William wore a bearskin cap and the full red military uniform during the Trooping rehearsals.
One subtle change is that the uniforms will feature the cyphers of both the late Queen and King Charles.
Royals who are appointed to aide-de-camp to the King will be allowed to don the insignia.
Other royals who were aide-de-camp to the late Queen, and who have retained a role under the new King, will also wear both cyphers on the day.
The Welsh Guards have composed a few new pieces for Saturday’s event.
Major Lauren Petritz-Watts will be the first female Army musician to have her composition played at Trooping the Colour.
This change comes after the King handed over his role as Colonel of the Welsh Guards to Prince William upon ascending the throne.
Change of national anthem
The most obvious change will be the change in the national anthem.
Viewers will be used to hearing ‘God Save The Queen’, however this year with King Charles, royals and spectators will sing ‘God Save The King’ for the first time at Trooping the Colour.
Kate and Camilla’s roles
During last year’s Trooping the Colour, both the now-Queen and Princess of Wales donned military attire. However, this year, both will not.
According to the Daily Mail, Kate – who is now the Colonel of the Irish Guards – will not be expected to wear military uniform and will ride in a carriage with her three children, Prince George, Princess Charlotte and Prince Louis.
Queen Camilla, who now holds Prince Andrew’s former title as Colonel of the Grenadier, will also not military uniform.