SCONE 5.5.0

Features

• cas: Prevent starting multiple CAS instances
• cas: Use fewer sqlite connections
• cas: add shellcheck to run-repo-tests
• runtime: add scone_strlen and scone_strnlen functions
• runtime: add support for robust futexes
• sconify: check automatic/manual path overlap
• sconify-image: add Azure Attestation support
• sconify-image: charts: support unencrypted volumes