Callisto v0.16.0
Transaction simulation before signing. Every pre-sign review now shows what a transaction would actually do against current chain state — an automatic revert check with the decoded reason, and an optional preview of the asset changes it would make. Simulated through your own RPC; no third-party simulation service. Also adds a Standard / Fast / Rapid default fee priority, and fixes Touch ID unlock falling back to macOS password prompts.
Install
macOS — download Callisto-v0.16.0-darwin-arm64.zip (Apple silicon) or -darwin-amd64.zip (Intel), unzip, and move Callisto.app to /Applications. Notarized by Apple — it just opens.
Already running Callisto? Just use Settings → Check for updates — it verifies and installs this release for you.
Verify (optional)
shasum -a 256 -c SHA256SUMS
SHA256SUMS is ed25519-signed as SHA256SUMS.sig with the maintainer key (the same key the in-app updater checks).
Changes
See the v0.16.0 changelog for the full list.