1. Ventura Final M1 IPSW Firmware Files

macOS Ventura Final IPSW Download LinksSignedRelease
UniversalMac_13.0.1_22A400_Restore.ipswYES11/09/22
UniversalMac_13.0_22A380_Restore.ipswYES10/24/22

2. Monterey Final M1 IPSW Firmware Files

macOS Monterey Final IPSW Download LinksSignRelease
UniversalMac_12.6.1_21G217_Restore.ipswYES11/01/22
UniversalMac_12.6_21G115_Restore.ipswYES9/12/22
UniversalMac_12.5.1_21G83_Restore.ipswYES8/17/22
UniversalMac_12.5_21G72_Restore.ipswYES7/20/22
UniversalMac_12.4_21F79_Restore.ipswYES5/16/22
UniversalMac_12.4_21F2092_Restore.ipswYES6/16/22
^ (21F2092) is ONLY for 2022 M2 MB Air & 13″ Pro  
UniversalMac_12.4_21F2081_Restore.ipswYES6/14/22
^ (21F2081) 2022 M2 Air & 13″ Pro Shipping build   
UniversalMac_12.3.1_21E258_Restore.ipswYES03/31/22
UniversalMac_12.3_21E230_Restore.ipswYES03/14/22
UniversalMac_12.2.1_21D62_Restore.ipswYES02/10/22
UniversalMac_12.2_21D49_Restore.ipswYES1/26/22
UniversalMac_12.1_21C52_Restore.ipswYES12/13/21
UniversalMac_12.0.1_21A559_Restore.ipswYES10/18/21

3. Big Sur Final IPSW Firmware Files

macOS Big Sur Final IPSW Download LinksSignedRelease
11.6 is the final Big Sur IPSW release.  
UniversalMac_11.6_20G165_Restore.ipswYES9/17/21
UniversalMac_11.5.2_20G95_Restore.ipswYES8/11/21
UniversalMac_11.5.1_20G80_Restore.ipswYES7/26/21
UniversalMac_11.5_20G71_Restore.ipswYES7/19/21
UniversalMac_11.4_20F71_Restore.ipswYES5/26/21
UniversalMac_11.3.1_20E241_Restore.ipswYES5/03/21
UniversalMac_11.3_20E232_Restore.ipswYES4/26/21
UniversalMac_11.2.3_20D91_Restore.ipswYES3/08/21
UniversalMac_11.2.2_20D80_Restore.ipswYES2/25/21
UniversalMac_11.2.1_20D74_Restore.ipswYES2/09/21
UniversalMac_11.2_20D64_Restore.ipswYES2/01/21
UniversalMac_11.1_20C69_Restore.ipswYES12/14/20
UniversalMac_11.0.1_20B29_Restore.ipswYES11/12/20
UniversalMac_11.0_20A2411_Restore.ipswN/AN/A

4. macOS Ventura Beta IPSW Firmware Files

Ventura Beta M1/M2 IPSW Restore File downloads are available from AppleSeed for IT & the Developer Portal.

macOS Ventura Beta IPSW Download LinksSignReleaseVer
UniversalMac_13.0_22A380_Restore.ipswYES10/20/22RC 2
UniversalMac_13.0_22A379_Restore.ipswYES10/18/22RC
UniversalMac_13.0_22A5373b_Restore.ipswYES10/11/22Beta 11
UniversalMac_13.0_22A5365d_Restore.ipswYES10/4/22Beta 10
UniversalMac_13.0_22A5358e_Restore.ipswYES9/27/22Beta 9
UniversalMac_13.0_22A5352e_Restore.ipswYES9/20/22Beta 8
UniversalMac_13.0_22A5342f_Restore.ipswYES9/09/22Beta 7
UniversalMac_13.0_22A5331f_Restore.ipswYES8/25/22Beta 6
UniversalMac_13.0_22A5321d_Restore.ipswYES8/08/22Beta 5
UniversalMac_13.0_22A5311f_Restore.ipswYES7/27/22Beta 4
UniversalMac_13.0_22A5295i_Restore.ipswYES7/11/22Public
UniversalMac_13.0_22A5295h_Restore.ipswYES7/06/22Beta 3
UniversalMac_13.0_22A5286j_Restore.ipswYES6/22/22Beta 2
UniversalMac_13.0_22A5266r_Restore.ipswYES6/06/22Beta 1

5. Monterey Beta IPSW Firmware Files

macOS Monterey Beta Download LinksSignReleaseVer
UniversalMac_12.5_21G72_Restore.ipswYES7/18/22RC2
UniversalMac_12.5_21G69_Restore.ipswYES7/12/22RC
UniversalMac_12.5_21G5063a_Restore.ipswYES7/5/22Beta 5
UniversalMac_12.5_21G5056b_Restore.ipswYES6/24/22Beta 4
UniversalMac_12.5_21G5046c_Restore.ipswYES6/14/22Beta 3
UniversalMac _12.5_21G5037d_Restore.ipswYES5/31/22Beta 2
UniversalMac_12.5_12G5027d_Restore.ipswYES5/18/22Beta 1
UniversalMac_12.4_21F79_Restore.ipswYES5/12/22RC
UniversalMac_12.4_21F5071b_Restore.ipswYES5/3/22Beta 4
UniversalMac_12.4_21F5063e_Restore.ipswYES4/26/22Beta 3
UniversalMac_12.4_21F5058e_Restore.ipswYES4/19/22Beta 2
UniversalMac_12.3_21F5048e_Restore.ipswYES4/05/22Beta 1
UniversalMac_12.3_21E230_Restore.ipswYES3/08/22RC
UniversalMac_12.3_21E5227a_Restore.ipswYES3/01/22Beta 5
UniversalMac_12.3_21E5222a_Restore.ipswYES2/22/22Beta 4
UniversalMac_12.3_21E5212f_Restore.ipswYES2/15/22Beta 3
UniversalMac_12.3_21E5206e_Restore.ipswYES2/09/22Beta 2
UniversalMac_12.3_21E5196i_Restore.ipswYES1/27/22Beta 1
UniversalMac_12.2_21D48_Restore.ipswYES1/20/22RC
UniversalMac_12.2_21D5039d_Restore.ipswYES01/11/22Beta 2
UniversalMac_12.2_21D5025f_Restore.ipswYES12/16/21Beta 1
UniversalMac_12.1_21C52_Restore.ipswYES12/10/21RC2
UniversalMac_12.1_21C51_Restore.ipswYES12/07/21RC
UniversalMac_12.1_21C5045a_Restore.ipswYES12/02/21Beta 4
UniversalMac_12.1_21C5039b_Restore.ipswYES11/17/21Beta 3
UniversalMac_12.1_21C5031d_Restore.ipswYES11/09/21Beta 2
UniversalMac_12.1_21C5021h_Restore.ipswYES10/28/21Beta 1
UniversalMac_12.0.1_21A559_Restore.ipswYES10/21/21RC2
UniversalMac_12.0.1_21A558_Restore.ipswYES10/18/21RC
UniversalMac_12.0_21a5552a_Restore.ipswYES10/13/21Beta10
UniversalMac_12.0_21A5543b_Restore.ipswYES10/06/21Beta 9
UniversalMac_12.0_21A5534d_Restore.ipswYES9/28/21Beta 8
UniversalMac_12.0_21A5522h_Restore.ipswYES9/21/21Beta 7
UniversalMac_12.0_21A5506j_Restore.ipswYES8/30/21Beta 6
UniversalMac_12.0_21A5304g_Restore.ipswYES8/11/21Beta 5
UniversalMac_12.0_21A5294g_Restore.ipswYES7/27/21Beta 4
UniversalMac_12.0_21A5284e_Restore.ipswYES7/14/21Beta 3
UniversalMac_12.0_21A5268h_Restore.ipswYES6/28/21Beta 2
UniversalMac_12.0_21A5248p_Restore.ipswN/AN/ABeta 1

6. Big Sur Beta IPSW Firmware Files

macOS Big Sur 11 Beta Download LinksSignedReleaseGB Size
UniversalMac_11.5_RC_20G70_Restore.ipswYES7/13/2113.0
UniversalMac_11.4_20F5046g_Restore.ipswN/AN/AN/A
UniversalMac_11.3_20E217a_Restore.ipswN/AN/AN/A
UniversalMac_11.3_20E5172i_Restore.ipswYES2/02/2113.87
UniversalMac_11.2_20D62_Restore.ipsw RC2N/AN/AN/A
UniversalMac_11.2_20D53_Restore.ipsw RCN/A1/21/2112.8
UniversalMac_11.2_20D5042d_Restore.ipswYES1/13/2112.8
UniversalMac_11.2_20D5029f_Restore.ipswN/AN/AN/A
UniversalMac_11.1_20C5061b_Restore.ipswYES12/03/2012.7
UniversalMac_11.1_20C5048k_Restore.ipswN/AN/AN/A
UniversalMac_11.0.1_20B28_Restore.ipswN/A11/10/20N/A
UniversalMac_11.0.1_20B5022a_Restore.ipswN/A11/05/2013.48
UniversalMac_11.0.1_20B5012d_Restore.ipswN/A11/28/2013.67
UniversalMac_11.0_20A5395g_Restore.ipswN/A11/14/2013.9