0.34 (25-Mar-2025)

• [feature] improve c++20 support
• [workaround, fltk] more realiable message delivery for fltk backend. Fltk
  might "forget" to invoke scheduled awakes after shutdown process, which leads
  to minor memory leaks
• [cmake, breaking] use CMAKE_CURRENT_SOURCE_DIR instead of CMAKE_SOURCE_DIR
• [cmake, breaking] configure option renamed BUILD_BOOST_ASIO => ROTOR_BUILD_ASIO
• [cmake, breaking] configure option renamed BUILD_WX => ROTOR_BUILD_WX
• [cmake, breaking] configure option renamed BUILD_EV => ROTOR_BUILD_EV
• [cmake, breaking] configure option renamed BUILD_FLTK => ROTOR_BUILD_FLTK
• [cmake, breaking] configure option renamed BUILD_THREAD => ROTOR_BUILD_THREAD
• [cmake, breaking] configure option renamed BUILD_DOC => ROTOR_BUILD_DOC
• [cmake, breaking] configure option renamed BUILD_THREAD_UNSAFE => ROTOR_BUILD_THREAD_UNSAFE
• [cmake, new] configure option added ROTOR_BUILD_TESTS (instead of ENABLE_TESTING)

0.33 (26-Jan-2025)

• [cmake, bugfix, win32] add ws2_32 lib for rotor_asion win32 build

• [feature] added make_routed_message() free function.
  The function is used for "synchronized" message post-processing, i.e. once a
  message has been delivered and processed by all recipients (can be zero),
  then it is routed to the specifed address to do cleanup.

Example:

1. an db-actor and opens transaction and reads data (i.e. as std::string_views, owned by db)
2. actors sends broadcast message to all interesting parties to deserialized data
3. after the step 2 is finished the db-actor closes transaction and releases acquired resources.

The make_routed_message is needed to perform recipient-agnostic 3rd step.

The alternative is to create a copy (snapshot) of data (i.e. std::string
instead of std::string_view), but that seems redundant.

• [improvement, breaking] add void* parameter to message_visitor_t

• [bugfix, fltk] more realiable message delivery for fltk backend

• [feature] added fltk-backend
• [feature, conan] enable_fltk option which add fltk-support
• [example] added /examples/ping-pong-fltk.cpp and
  examples/ping-pong-fltk_and_thread.cpp
• [bugfix] wx-backend building and testing
• [improvement, breaking] output directories are set to bin for cmake
• [improvement, breaking] actor_base_t::make_error() is marked as const

0.29 (24-Feb-2024)

• [bugfix] fix segfault in delivery plugin in debugging mode
  (try to set env ROTOR_INSPECT_DELIVERY=99 to see)

• [cmake, bugfix] add missing header into installation

• [feature] new interface message_visitor_t
• [feature] new interface message_stringifier_t and the default implementation
  default_stringifier_t which allows to dump messages. It is not a production but
  a diagnostic/debug tool, due to performance restrictions.
• [feature] system_context_t provides a reference to default message_stringifier_t;
  it is possible to have a custom one
• [feature, breaking] extended_error_t holds a reference to a request message,
  which caused an error
• [examples, tests, win32] fix ev examples and tests
• [example] modernize examples/thread/sha512.cpp to use recent openssl version
• [breaking] cmake requirements are lowered to 3.15
• [breaking] fix minor compilation warnings

• [feature] start_timer callback not only method, but any invocable
• [feature, conan] enable_ev option which add libev
• [breaking, conan] boost minimum version 1.83.0
• [testing, conan] remove catch2 from sources and make it dependencies
• [bugfix, breaking] make plugins more dll-friendly
• [breaking] cmake minimum version 3.23
• [breaking] rename registry_t::revese_map_t revese_map -> registry_t::reverse_map_t reverse_map
• [breaking] rename struct cancelation_t -> cancellation_t
• [doc] fix multiple typos

• [bugfix] avoid response messages loose their order relative to regular message
• [bugfix, example] add missing header