Choose aProduct→Choose aPlatform→Choose aVersion→ClickDownload

Download 11.5 (20G71) for MacBook Air (M1, Late 2020)

Version:	11.5
Build:	20G71
Signed:	Yes
Size:	13.01 GB
Release Date:	2021-07-21 17:30:10
Upload Date:	2021-07-16 17:58:21
SHA1:	9ab736e121472c64f8550597c77ca6077170463d
MD5:	90775fd2bcfe7e70ef0ee0bbe2d8bf92
SHA256:	7f926ba7f6e536cb0a09ac7dc4ab1faf174ddb4d5344c6135aca23e75a38800a

Secure download directly from Apple's servers

IPSW Portal