6.0.0-rc1

Note: this release candidate still includes .deb packages targeting Ubuntu 20.04, but 6.0.0 final is intended to contain only rpm files targeting Azure Linux 3.0.

Changed

• OpenSSL helpers in ccf/crypto/openssl/openssl_wrappers.h are now exposed (#6895).
• Fixed potential races in indexing interfaces and LazyStrategy (#6886).
• Removed default value for redirection-kind parameter to start_network script (#6887).
• Don't throw error if the ledger directory exists but is empty on node start (#6885).
• Open Enclave logs directly to standard output, without restriction (#6888).

Added

• The read-ledger.py tool now has a --recovery argument, which will allow it to parse .recovery files. Previously these were ignored (#6896).