MacBook Air 11" mid 2011 - High Sierra vs Mojave

[haralds]

I dusted off my old MacBook Air 11" mid-2011. I really like the form factor for around-the-house typing. I used Firefox 115 ESR and can still get web access with modern sites. All my Arturia Synths work, but they do strain the system a little.
The main OS installed is High Sierra, but I also have Mojave as a second boot using both DosDude patches and OCLP. OCLP was the only way to get the updates when I just installed Mojave. I also had Catalina running, but suspected it did not do well with 4GB of RAM.
The system has an upgraded OWC 1TB SSD and a more modern BT/WiFi card. Continuity works after a minor High Sierra PLIST patch. It also has a fresh battery. Of course, it cannot compete with my M1 PowerBook Pro.

I am considering making Mojave the main system and deleting High Sierra altogether for more space. But I am hesitant. Mojave has to disable SIP, while High Sierra runs with it turned on.

What do people think are the pros and cons? Speed looks about the same.

 

[ignatius345]

The 11" Air was one of the all time great Macs. I had a run of like 6-8 years with one of those always in my bag. If they made one with a retina display and an Apple Silicon processor I'd buy in a heartbeat. (Sorry, no input on your OS question, but respect your choice of hardware)

 

[haralds]

The 11" Air was one of the all time great Macs. I had a run of like 6-8 years with one of those always in my bag. If they made one with a retina display and an Apple Silicon processor I'd buy in a heartbeat. (Sorry, no input on your OS question, but respect your choice of hardware)

Same here.
I have an Intel MacBook Pro 2018 hi spec ($5K at the time,) an M1 MacBook Pro 13" max spec, as they came out (also a keeper,) an M1 Studio Ultra (in my home office,) and now M4 Mini Pro (in my home study/hideaway.) A fully equipped CMPro is still the grandpa in the lot. But I like this little guy.

 

[Heinzja]

Hi,

Got the 4,2 version of the Air 4GB/RAM 2011/2012 and still on Lion and don’t know to which OS I should update...
which would be the best OS version without loosing performance etc... did look around (Google and here) but there are not so clear advices, so I do not know what I should do... please help ...