View Transitions in Astro 3

The head­ling fea­ture of Astro 3 is the View Tran­si­tion fea­ture, which is built on top of the View Tran­si­tions API. The API is still cat­e­go­rized as exper­i­men­tal and has lim­it­ed brows­er sup­port. How­ev­er, Astro 3 uses a poly­fill to bring the fea­ture to all browsers.