"Steam is not optimized for Mac" message

[sf_o_matic]

Since the last High Sierra update, I'm getting a "Steam is not optimized for Mac OSX" and to "please contact the developer" so that's what I'm doing.

[Cathulhu]

No, only users here.
If you want to contact Valve directly, use help.steampowered.com

The message says that Steam is still a 32Bit application, which Apple will no longer support in the near(ish) future.

[Atlan da Gonozal]

Steam should be ashamed of themselves. When will we get a new client?

[cSg|mc-Hotsauce]

It is not the client that is doing it, no. It is the OS.

[Vega | ベガ]

The Steam app is currently still a 32-bit application. This can be verified by using the application System Information and on the left sidebar, under the software tab, click Applications.

[CaptainFez]

Originally posted by postlarval:

Sorry, what I meant is the client is not 64-bit so it's causing even 64-bit games to get the warning from macOS.

Nope, that's not how it works. Steam merely opens the installed version of the app, and you will get the message if it's 32-bit only. I just checked by opening several 64-bit games with no warning. But 32-bit that I hadn't opened before? Warning. It's an OS-level thing, not a Steam thing.

See what software needs upgrades by going into System Information, then selecting Software-Applications - there's a column on the right with 64-bit status in it.

[Ecgbert]

Originally posted by jsruzicka:

Since the last High Sierra update, I'm getting a "Steam is not optimized for Mac OSX" and to "please contact the developer" so that's what I'm doing.

I'm getting the same message, which is basically a warning message that no 32 bit applications will run after the next major OS update.

I understand this to mean the steam client will not run once 32 support is removed from MacOS.

Meantime, I'm suspending any purchases until I know for sure what's happening.

[[VPLTD] peterm]

Apple's policy on 32-bit apps is stupid. it's as simple as that. There is no reason for them to break 32 bit support, yet that is what they have chosen to do.

[aiusepsi]

Originally posted by VPLTD Peter Mulholland:

Apple's policy on 32-bit apps is stupid. it's as simple as that. There is no reason for them to break 32 bit support, yet that is what they have chosen to do.

Actually, yes, there are good reasons. For example:

* The 32-bit Objective-C ABI is fragile; this limits the ways that Apple can evolve parts of the system without causing breakage. This slows down the evolution of macOS.

* The size of all system binaries are doubled because they have to contain both 32-bit and 64-bit code. The OS will take up less space on disk when they don't have to ship 32-bit slices.

You can argue about if things like this are sufficiently good reasons, but they're not just dropping. 32-bit support for no reason.

[ShannonApple]

It's not just Steam. I have some apps that are probably 5-6 years old and this message popped up on my screen after I updated to High Sierra last week. Didn't know what it meant til now. I'll be sticking with High Sierra for a while, that's for sure.

Been using macs for 15 years, sometimes when you pay a lot of money for software and it does the trick for what you need it for, you're not going to move on up to a monthly subscription. That's where I'm at. lol.

Some older games on Steam are 32 bit as well. I have a few of those in my library. Oops.

It's a bold move from Apple.

[Hydreigo]

I have been having this same problem and no one is talking about how to fix it. Please explain

[ShannonApple]

Download the newest version of Steam.

[roperiow]

Originally posted by ShannonApple:

Download the newest version of Steam.

I have there latest version and still can't open steam, bobs up and down but never opens.... followed all the steps in other posts... still nothing and this seems to be going on for months. Will we ever see a fix

[ShannonApple]

Are you sure? The latest version should not show the "Steam is not optimised" message because it is 64 bit. They recently updated Steam for Mac.

I have the latest version and it's 64 bit. Running it on High Sierra. While you've got it bouncing away in the dock you can check this on your machine by going to Applications --> Utilities --> Activity Monitor ---> and looking for it in the Disk tab to see if it's 64 or 32 bit.

If it is indeed 64 bit, there's something else going on.

[ChimpNuts]

Originally posted by ShannonApple:

Are you sure? The latest version should not show the "Steam is not optimised" message because it is 64 bit. They recently updated Steam for Mac.

I have the latest version and it's 64 bit. Running it on High Sierra. While you've got it bouncing away in the dock you can check this on your machine by going to Applications --> Utilities --> Activity Monitor ---> and looking for it in the Disk tab to see if it's 64 or 32 bit.

If it is indeed 64 bit, there's something else going on.

I've done everything just as the last guy said, and still nothing. I've double checked to make sure the steam client I have is the 64 bit, after deleting and re-installing twice. You say that your client does open on High Sierra? I literally updated to Mojave because I thought it was because I was still on High Sierra or something along those lines, and still nothing. Just a bobbing and for the first time I got the "Not Optimized" message after moving to Mojave. Any new info on how to fix this?

[ChimpNuts]

Originally posted by Lil' Monkey ♥♥♥♥♥:

Originally posted by ShannonApple:

Are you sure? The latest version should not show the "Steam is not optimised" message because it is 64 bit. They recently updated Steam for Mac.

I have the latest version and it's 64 bit. Running it on High Sierra. While you've got it bouncing away in the dock you can check this on your machine by going to Applications --> Utilities --> Activity Monitor ---> and looking for it in the Disk tab to see if it's 64 or 32 bit.

If it is indeed 64 bit, there's something else going on.

I've done everything just as the last guy said, and still nothing. I've double checked to make sure the steam client I have is the 64 bit, after deleting and re-installing twice. You say that your client does open on High Sierra? I literally updated to Mojave because I thought it was because I was still on High Sierra or something along those lines, and still nothing. Just a bobbing and for the first time I got the "Not Optimized" message after moving to Mojave. Any new info on how to fix this?

Edit: Right after writing this post, the login screen came up as I was going to uninstall the client again. I believe there is some kind of behind-the-scenes updating that is done at some point after clicking on the application, as I read another comment on a separate thread saying that the login screen had suddenly appeared. Just wait it out and try uninstalling a few times and leaving the application open even after it has stopped bobbing.