Choose aProduct→Choose aPlatform→Choose aVersion→ClickDownload

Download 11.3 (20E232) for MacBook Pro (M1, Late 2020)

Version:	11.3
Build:	20E232
Signed:	Yes
Size:	12.99 GB
Release Date:	2021-04-26 17:48:28
Upload Date:	2021-04-16 15:31:23
SHA1:	4794880d551c9ba25e024e8b641744c464cd5023
MD5:	eab5bb78a428aa4c7e4ea95808680d3d
SHA256:	dd33948c5e7fc16321aba8c96267301d9c6fb1c6bbe0aba13aad8f5646c7962d

Secure download directly from Apple's servers

IPSW Portal