- Some constructs have been renamed (see below for details), you'll have to adapt your sources whether you're using the basic or the convenience sdbus-c++ API.
- You'll also have to re-generate adaptor/proxy stubs with the new stub code generator if you're using them.
- And you'll have to take care of manual registeration/deregistration in the constructors/destructors of your final adaptor and proxy classes. See updated using sdbus-c++ tutorial.
- Cleaning up some names (of class, methods, files):
* Interfaces.h -> split into AdaptorInterfaces.h and ProxyInterfaces.h
* createObjectProxy() method -> createProxy()
- Add new unregister() virtual function to IObject and IProxy to allow for safe construction and destructions of D-Bus ojects and proxies hooked to live D-Bus connections.
- Extend stress tests to allow testing safe initialization/deinitialization of objects and proxies
- [[Breaking ABI change]] Added full support for ObjectManager, Properties and other standard D-Bus interfaces (Reordering virtual functions in interface classes)
- sdbus-c++ now can automatically download, build and incorporate libsystemd static library, which makes things pretty easy in non-systemd environments
- Switch from thread_local to global bus instance that is used to create Variant instances (thread_local caused issues with Variant in very special inter-thread situations)
- [[Breaking API change]] Fixed the API to send org.freedesktop.DBus.ObjectManager.InterfacesAdded and org.freedesktop.DBus.ObjectManager.InterfacesRemoved signals via the generated stubs layer.
- StandardInterfaces.h: Split ObjectManager_adaptor and ManagedObject_adaptor.
- In *synchronous* D-Bus calls, the proxy now **always** blocks the connection for concurrent use until the call finishes (with either a received reply,
an error, or time out). If this creates a connection contention issue in your multi-threaded design, use short-lived, light-weight proxies, or call
the method in an asynchronous way.
- Signatures of callbacks `async_reply_handler`, `signal_handler`, `message_handler` and `property_set_callback` were modified to take input message objects
by value, as opposed to non-const ref. Callee assumes ownership of the message. This API is more idiomatic, cleaner and safer.
- The `PollData` struct has been extended with a new data member: `eventFd`. All hooks with external event loops shall be modified to poll on this fd as well.
- `PollData::timeout_usec` was renamed to `PollData::timeout` and its type has been changed to `std::chrono::microseconds`. This member now holds directly
what before had to be obtained through `PollData::getAbsoluteTimeout()` call.
- `PollData::getRelativeTimeout()` return type was changed to `std::chrono::microseconds`.
- `IConnection::processPendingRequest()` was renamed to `IConnection::processPendingEvent()`.
- `IProxy::getCurrentlyProcessedMessage()` now returns `Message` by value instead of a raw pointer to it. The caller assumes ownership of the message.
- Object D-Bus API registration is now done through `IObject::addVTable()` method. The registration holds immediately; no `finishRegistration()` call is needed anymore.
- Subscription to signals has been simplified. The subscription is active right after the `registerSignalHandler`/`uponSignal()` call. No need for the final
call to `finishRegistration()`. `IProxy::muteSignal()` has been removed in favor of the RAII-based slot object returned by the slot-returning variant of the
registration method. Destroying the slot object means unsubscribing from the signal.
- `request_slot` tag was renamed to `return_slot`.
- `[[nodiscard]]` attribute has been added to relevant API methods.
- `ProxyInterfaces::getObjectPath()` was removed, it can be replaced with `ProxyInterfaces::getProxy().getObjectPath()`.
- `AdaptorInterfaces::getObjectPath()` was removed, it can be replaced with `AdaptorInterfaces::getObject().getObjectPath()`.
- Callbacks taking `const sdbus::Error* error` were changed to take `std::optional<sdbus::Error>`, which better expresses the intent and meaning.
- Types and methods marked deprecated in sdbus-c++ v1 were removed completely.
- CMake options got `SDBUSCPP_` prefix for better usability and minimal risk of conflicts in downstream CMake projects.
- Systemd of at least v238 is required to compile sdbus-c++
- A proper fix for timeout handling
- Fix for external event loops in which the event loop thread ID was not correctly initialized (now fixed and simplified by not needing the thread ID anymore)
