iMac 27" 2010 EFI update?

[reukiodo]

I searched the internet and couldn't find any information, but it seems that the latest El Capitan update changed my iMac11,3's EFI version to IM112.0057.B03 while Apple's site still says IM112.0057.B01 is the current version.

Has anyone else had this? Does anyone know what changes are made in this update?

 

[Blackbird1100]

I searched the internet and couldn't find any information, but it seems that the latest El Capitan update changed my iMac11,3's EFI version to IM112.0057.B03 while Apple's site still says IM112.0057.B01 is the current version.

Has anyone else had this? Does anyone know what changes are made in this update?

I also have a 27" iMac Mid 2010 (11,3)

I don't know what my prior EFI version was, after El Capitan it is now;
IM112.0057.B02

 

[reukiodo]

Maybe because I'm on the Beta? It came with that 15B30a update.

 

[cbrand493]

Maybe because I'm on the Beta? It came with that 15B30a update.

Going by the fact it's such a minor build number change, I'll guess it's a very minor tweak for compatibility.

 

[reukiodo]

Another EFI update today with the latest Sierra 10.12.4 beta update: IM112.0057.B04

 

[reukiodo]

Another EFI update today with the latest Sierra 10.12.4 beta (16E175b) update: IM112.0057.B08

 

[reukiodo]

Another EFI update today with the latest Sierra 10.12.4 beta (16E183b) update: IM112.0057.B09

 

[KennethS]

Thanks very much for pointing this out. The last couple of updates I got that horrid long beep noise on first reboot during the update that after searching seemed to relate to an EFI update/reset. I have been worried that my iMac is on its last legs or something. I guess I can rest a little easier!

 

[reukiodo]

The last couple of updates I got that horrid long beep noise on first reboot during the update that after searching seemed to relate to an EFI update/reset.

Do you also have the 2010 27" iMac?

 

[KennethS]

Do you also have the 2010 27" iMac?

Yes, Mid 2010. I upgraded to an SSD a couple of years back and it still works great (bought it new in late 2010).

 

[reukiodo]

Another EFI update today with the latest Sierra 10.13 beta (17A264c) update: IM112.0057.B0D

 

[redheeler]

Another EFI update today with the latest Sierra 10.13 beta (17A264c) update: IM112.0057.B0D

Necessary for bootable Apple File System support.

 

[reukiodo]

I thought the Mac's EFI booted to the HD's EFI partition, which should be FAT32... If not, will all the supported systems get EFI updates to support AFS booting?

 

[reukiodo]

Another EFI update today with the latest High Sierra 10.13 beta (17A306f) update: IM112.0058.B01

This one actually bumps up the major version!

 

[reukiodo]

Another EFI update today with the latest High Sierra 10.13 beta (17A330h) update: IM112.005A.B00

Another bump up to the major version, even skipping 0059!

 

[reukiodo]

Another EFI update with the latest High Sierra 10.13 beta 6 (17A344b) update: IM112.005B.B00

Another bump up to the major version.

 

[reukiodo]

Another EFI update, this time with the latest Sierra 10.12.6 (16G1314) security update: IM112.005C.B00

Another bump up to the major version.

 

[reukiodo]

Another EFI update, this time with the latest Sierra 10.12.6 (16G1408) security update: IM112.005D.B00

Another bump up to the major version.