ccf-0.11.7

Changed

1. Fix a bug that could cause signatures not to be recorded on transactions hitting conflicts (#1346)
2. Fix a bug that could allow transactions to be executed by members before a recovered network was fully opened (#1347)
3. Improve error reporting on transactions with invalid signatures (#1356)

Added

1. All format and linting checks are now covered by scripts/ci-checks.sh (#1359)
2. node/code RPC returns all code versions and their status (#1351)

ccf-0.11.4

Changed

• Fix application runtime container, which had been missing a dependency in the previous release (#1340)
• Add clang-format to the application CI container, to facilitate application development (#1340)
• Websocket handlers are now distinct, and can be defined by passing ws::Verb::WEBSOCKET as a verb to make_endpoint() (#1333)
• Custom KV serialisation is documented

ccf-0.11.1

Added

• CLI tool for managing recovery shares (#1295). usage
• New standard endpoint node/ids for retrieving node ID from IP address (#1319).
• Support for read-only transactions. Use tx.get_read_only_view to retrieve read-only views, and install with make_read_only_endpoint if all operations are read-only.
• Support for distinct handlers on the same URI. Each installed handler/endpoint is now associated with a single HTTP method, so you can install different operations on POST /foo and GET /foo.

Changed

• The frontend names, used as a prefix on all URIs, have been changed. Calls to /members/... or /users/... should be replaced with /gov/... and /app/... respectively. The old paths will return HTTP redirects in this release, but may return 404 in a future release (#1325).
• App-handler installation API has changed. install(URI, FN, READWRITE) should be replaced with make_endpoint(URI, VERB, FN).install(). Existing apps should compile with deprecation warnings in this release, but the old API will be removed in a future release. See this diff of logging.cpp for an example of the required changes.
• Improved quickstart documentation (#1298, #1316).
• Member ACKs are required, even when the service is opening (#1318).
• The naming scheme for releases has changed to be more consistent. The tags will now be in the form ccf-X.Y.Z.

0.11

Changed:

• KV reorganisation to enable app-defined serialisation (#1179, #1216, #1234)

kv.h has been split into multiple headers so apps may need to add includes for kv/store.h and kv/tx.h. The typedefs ccf::Store and ccf::Tx have been removed; apps should now use kv::Store and kv::Tx.

CCF now deals internally only with serialised data in its tables, mapping byte-vectors to byte-vectors. By default all tables will convert their keys and values to msgpack, using the existing macros for user-defined types. Apps may define custom serialisers for their own types - see kv/serialise_entry_json.h for an example.

• Fixed issues that affected the accuracy of tx status reporting (#1157, #1150)
• All RPCs and external APIs now use view and seqno to describe the components of a transaction ID, regardless of the specific consensus implementation selected (#1187, #1227)
• Improved resiliency of recovery process (#1051)
• foreach early-exit semantics are now consistent (#1222)
• Third party dependency updates (#1144, #1148, #1149, #1151, #1155, #1255)
• All logging output now goes to stdout, and can be configured to be either JSON or plain text (#1258) doc
• Initial support for historical query handlers (#1207) sample
• Implement the equivalent of "log rolling" for the ledger (#1135) doc
• Internal RPCs renamed to follow more traditional REST conventions (#968) doc

Added:

• Support for floating point types in default KV serialiser (#1174)
• The start_test_network.sh script now supports recovering an old network with the --recover flag (#1095) doc
• Application CI and runtime containers are now available (#1178)
  1. ccfciteam/ccf-app-ci:0.11 is recommended to build CCF applications
  2. ccfciteam/ccf-app-run:0.11 is recommended to run CCF nodes, for example in k8s
• Initial websockets support (#629) sample

Removed:

ccf::Store and ccf::Tx typdefs, in favour of kv::Store and kv::Tx.

v0.10

New

• Brand new versioned documentation: https://microsoft.github.io/CCF.
• New /tx endpoint to check that a transaction is committed (#1111). See docs.
• Disaster recovery is now performed with members key shares (#1101). See docs.
• Open Enclave install is included in CCF install (#1125).
• New sgxinfo.sh script (#1081).
• New --transaction-rate flag to performance client (#1071).

Changed

• CCF now uses Open Enclave 0.9 (#1098).
• cchost's --enclave-type is release by default (#1083).
• keygenerator.sh's --gen-key-share option renamed to --gen-enc-key to generate member encryption key (#1101).
• Enhanced view change support for PBFT (#1085, #1087, #1092).
• JavaScript demo logging app is now more generic (#1110).
• Updated method to retrieve time in enclave from host (#1100).
• Correct use of Everycrypt hashing (#1098).
• Maximum number of active members is 255 (#1107).
• Python infra: handle proposals correctly with single member (#1079).
• Dependencies updates (#1080, #1082).

Removed

• cchost no longer outputs a sealed secrets file to be used for recovery (#1101).

0.9.3

Added

1. Install artifacts include virtual build (#1072)
2. add_enclave_library_c is exposed in ccp_app.cmake (#1073)

0.9.2

Added

• Handlers can decide if transaction writes are applied independently from error status (#1054)
• Scenario Perf Client is now part of the CCF install to facilitate performance tests (#1058)

Changed

• Handle writes when host is reconnecting (#1038)
• Member tables are no longer whitelisted for raw_puts (#1041)
• Projects including CCF's CMake files now use the same build type default (#1057)

0.9.1

Added

• cchost now supports file-based configuration, as well as command-line switches (#1013, #1019)

0.9

This pre-release improves support for handling HTTP requests.

Added

• Key shares will be accepted after multiple disaster recovery operations (#992).
• HTTP response headers and status can be set directly from handler (#921, #977).
• Handlers can be restricted to accept only specific HTTP verbs (#966).
• Handlers can accept requests without a matching client cert (#962).
• PBFT messages are authenticated by each receiving node (#947).
• snmalloc can be used as allocator (#943, #990).
• Performance optimisations (#946, #971).
• Install improvements (#983, #986).

Changed

• HTTP request and responses no longer need to contain JSON-RPC objects (#930, #977).
• Files and binaries have been renamed to use a consistent lower_snake_case (#989). Most app includes should be unaffected, but users of the luageneric app should now look for lua_generic.
• Threading support relies on fixes from a recent build of OE (#990). Existing machines should re-run the ansible playbooks to install the current dependencies.
• Consensus is chosen at run-time, rather than build-time (#922).
• API for installing handlers has changed (#960). See the logging app or documentation for the current style.
• Several standard endpoints are now GET-only, and must be passed a URL query (ie GET /users/getCommit?id=42).

0.8.2

Changed

• CCF install can now be installed anywhere (#950).
• PBFT messages are now authenticated (#947).
• Miscellaneous performance improvements (#946).