v30.0 OSX binary cannot be run on `macOS 15.3.1`

Our newest releases (22.4+ and 23.x) will now have signed OSX binaries, closing this issue.

Originally posted by @deannagarcia in #9397

On macOS 15.3.1 I've encountered an error when trying to run protoc from protoc-30.0-osx-aarch_64 release binary:

% sha256sum ~/Downloads/protoc-30.0-osx-aarch_64/bin/protoc
ed4a186bc767b067dd7ae09bfa935450b313be02cbd21a1af185274b8d2a07a8  /Users/kris/Downloads/protoc-30.0-osx-aarch_64/bin/protoc
% codesign -v -vvv --strict --deep ~/Downloads/protoc-30.0-osx-aarch_64/bin/protoc
/Users/kris/Downloads/protoc-30.0-osx-aarch_64/bin/protoc: valid on disk
/Users/kris/Downloads/protoc-30.0-osx-aarch_64/bin/protoc: satisfies its Designated Requirement
% ~/Downloads/protoc-30.0-osx-aarch_64/bin/protoc

macOS Alert

"protoc" Not Opened

Apple could not verify "protoc" is free of malware that may harm your Mac or compromise your privacy.

[Done] [Move to Trash]

zsh: killed     ~/Downloads/protoc-30.0-osx-aarch_64/bin/protoc

I see syspolicyd in console saying ticket not available for something, probably the protoc just tried to run. Also tried the protoc-29.3-osx-universal_binary release with the same result.

Not sure if this a transient error with Notarization / Gatekeeper. But workaround to continue using protoc on homebrew works ok:

% sha256sum /opt/homebrew/bin/protoc
8949fe76a001b29303d6b24c106e3b1da0b19fd6fe412038a2d2fce18864a5b0  /opt/homebrew/bin/protoc
% /opt/homebrew/bin/protoc --version
libprotoc 29.3