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List of Changes

Version 0.13.1

  • Updated the vcpkg baseline to build against Microsoft SEAL 4.4.0.
  • The global logger is now a never-destroyed ("immortal") singleton, which avoids a static-destruction-order issue when another library logs through APSI during process teardown. As a consequence the logger's handlers are no longer invoked automatically at exit, so the built-in console and file loggers now flush on every write. Custom buffering loggers should be flushed and closed via apsi::CloseLogger() (see Logging).
  • Fixed some issues in CMakePresets.json.

Version 0.13.0

  • Numerous bug fixes.
  • Replaced the apsi::Log class with free functions in the apsi namespace (SetLogLevel, GetLogLevel, SetLogger, GetLogger, CloseLogger, and the new ResetDefaultLogger); the level enum is now apsi::LogLevel (was apsi::Log::Level). The optional log4cplus dependency and the APSI_USE_LOG4CPLUS option are removed in favor of a built-in logger (see Logging). Log::SetLogFile and Log::SetConsoleDisabled are gone; use SetLogger(NewFileLogger(...)) and SetLogger(Logger::Create({}, {}, {})). The APSI_LOG_* macros are unchanged at call sites.
  • Renamed the log levels to trace (most verbose, with a new APSI_LOG_TRACE macro), debug, info, warning, error, and suppress (previously named off). The SetLogLevel(std::string) and CLI --logLevel values change accordingly.
  • Removed Item::get_as<T> and receiver::LabelData::get_as<T>. Use Item::value() / LabelData::value() instead. LabelData::to_string() is now a non-template returning std::string.
  • Changed the receiver's label-key vectors from std::vector<LabelKey> to apsi::LabelKeyVector, whose allocator zeroes the buffer before freeing it so per-item label keys do not linger in the heap.
  • APSI requires now C++17 or newer. The APSI_USE_CXX17 option and macro are removed.
  • vcpkg is now consumed in manifest mode (vcpkg.json at the project root), and the CMake minimum is raised from 3.16 to 3.25.
  • The library comes now with CMake presets (CMakePresets.json).

Version 0.12.0

Version 0.9.1

  • Fixed a bug with SEAL dependency.

Version 0.9.0

  • Switching to use SEAL 4.1.0.
  • Added $schema to cgmanifest.json (PR #38).
  • Fixed a mistake in README.md that caused Windows configurations with vcpkg to fail.

Version 0.8.2

Fixes the following GitHub issues:

  • #25 Force AVX when AVX2 is available
  • #31 Build fails on Mac M1
  • #32 Build fails on arm64-android
  • #33 Build fails on x86-windows
  • #34 Building arm64-windows

Version 0.8.1

Version 0.8.0

Version 0.7.0

  • The CMake system no longer builds unit tests and the CLI by default. To build these, specify -DAPSI_BUILD_CLI=ON and -DAPSI_BUILD_TESTS=ON.

Version 0.6.0

  • The function SenderDB::strip now also clears the OPRF key from held by the SenderDB instance. This can be useful in some situations, where the SenderDB should serve query requests in an untrusted environment and should have no access to the OPRF key. Note that the OPRF requests still need to be served and do require the OPRF key, but this can be done, for example, by a different isolated machine. It is essential to ensure that the OPRF key is saved before calling SenderDB::strip.
  • Removed parameters/16M-256.json; use parameters/16M-1024.json instead.
  • Added error handling code in sender/apsi/zmq/sender_dispatcher.cpp.

Version 0.5.0

  • Added flexibility to use any value for felts_per_item in PSIParams, not just a power of two.
  • Corrected parameter files to have < 2^(-40) false-positive probability per protocol execution.