7.0.0-dev10

Added

• GET and HEAD /node/ledger-chunk?since={seqno} and /node/ledger-chunk/{chunk_name} endpoints, gated by the LedgerChunkDownload RPC interface operator feature. See documentation for more detail.
• GET and HEAD /node/ledger-chunk/{chunk_name} and /node/snapshot/{snapshot_name} now support the Want-Repr-Digest request header and return the Repr-Digest response header accordingly (RFC 9530). Supported algorithms are sha-256, sha-384, and sha-512. If no supported algorithm is requested, the server defaults to sha-256 (#7650).
• ETag and If-None-Match support on GET /node/ledger-chunk/{chunk_name}, using SHA-256 by default for the ETag response header. Clients can supply If-None-Match with sha-256, sha-384, or sha-512 digest ETags to avoid re-downloading unchanged content (#7652).

Changed

• ccf::crypto::HashProvider::Hash() has been renamed to ccf::crypto::HashProvider::hash() for consistency with the rest of the API (#7660).

Fixed

• Only rollback uncommittable indices during become_leader (#7620)
• x509 parsing now correctly handles times validity beyond 2262. To support this, some public function signatures (ccf::ds::time_point_from_string(), ccf::crypto::Verifier::remaining_seconds()) now use time_points from ccf::nonstd::SystemClock rather than std::chrono::system_clock (#7648)