Immutable releases are now generally available on GitHub

Would've made more sense to add a grey "Edited" to edited releases. Releases are not actually immutable, GitHub could change them. I don't know why you need to use sciency words to say "editing disabled".

They are immutable! The releases are signed with an attestation from a trusted third party that Github can't forge! Also these attestations are public and anyone can verify that the signing third party isn't misbehaving.

> Release attestations let you verify that an artifact is authentic and unchanged, even outside GitHub. Attestations use the Sigstore bundle format, so you can easily verify releases and assets using the GitHub CLI or integrate with any Sigstore-compatible tooling to automate policy enforcement in your CI/CD pipelines. For instructions on how to verify the integrity of a release, see our docs on verifying the integrity of a release.

They are using Sigstore, which is pretty standard in this space.