Hi, How to correctly check notarization for my product for DMG and APP bundle? For APP, if I use this command: spctl -a -v 'MyProduct.app' It shows OK for my Mac where I compiled and signed this APP, even if this APP was NOT notarized. And this command correctly detects missing or failed notarization: spctl -a -vvv -t install 'MyProduct.app' For DMG I used this command: spctl -a -t open --context context:primary-signature MyProduct.dmg -v However I'm not sure that all these commands on 100% validate successful/absent/failed notatization.

Hi, I recently created and installed new code signing certificates/keys on my main Mac. How to easily copy these certificates/keys to my another Mac with the same Apple ID? Earlier Quinn suggested: "The easiest way to do this is use Xcode’s import/export feature. Launch Xcode, choose Xcode > Settings, select Accounts, select the account in question, then choose Export Apple ID and Code Signing Assets from the action (…) menu." And it worked fine in 2020-2021. However import/export options are no longer available in XCode 16 anymore. Please suggest a simple solution.

Hi, I suggest Apple to more frequently reply to software developers. My previous replies didn't get any reply or help from Apple. Also many questions from other developers were not answered. I guess that so large company can pay more attention to their sofware developers. We really need more help and replies from Apple to create good software apps for macOS and iOS.

Hi, I think that a visual quality of hardware video encoder (VideoToolBox H.264) in M1 Macs is not great. I compared a software libx264 encoder (Mac) and NVIDIA Geforce (NVENC) on Windows 10 with the same bitrate or constant quality mode producing almost identical file size. I see many visual artefacts on a video encoded with VideoToolBox H.264 (1080p 60 fps) 3300K or CQ56. It's especially noticeable on video with animated photo slideshows and blur effect. Too many artefacts. NVENC and libx264 produce much better visual results with the same file size. I tested in my app and in Handbrake Beta for M1 which supports VideoToolBox H.264 encoding. Apple engineers can contact me for more details.

How I can force HiDPI on external monitor 2560x1440 to use it as virtual 1280x720 in Big Sur? RDM doesn't show any Retina resolution. I tried to generate displayproductid-xxx.plist for my monitor using a script: codeclou.github.io/Display-Override-PropertyList-File-Parser-and-Generator-with-HiDPI-Support-For-Scaled-Resolutions/ But ioreg -l | grep "DisplayProductID" ioreg -l | grep "DisplayVendorID" returns nothing. Also I tried this script: github.com/xzhih/one-key-hidpi - doesn't work, too. Note that this folder cannot be modified even when SIP is disabled: /System/Library/Displays/Contents/Resources/Overrides/