Version 1.55.90 --------------- - New JS API: It's now possible to call and implement DBus methods whose parameters or return types include file descriptor lists (type signature 'h'.) This involves passing or receiving a Gio.UnixFDList instance along with the parameters or return values. To call a method with a file descriptor list, pass the Gio.UnixFDList along with the rest of the parameters, in any order, the same way you would pass a Gio.Cancellable or async callback. For return values, things are a little more complicated, in order to avoid breaking existing code. Previously, synchronously called DBus proxy methods would return an unpacked GVariant. Now, but only if called with a Gio.UnixFDList, they will return [unpacked GVariant, Gio.UnixFDList]. This does not break existing code because it was not possible to call a method with a Gio.UnixFDList before, and the return value is unchanged if not calling with a Gio.UnixFDList. This does mean, unfortunately, that if you have a method with an 'h' in its return signature but not in its argument signatures, you will have to call it with an empty FDList in order to receive an FDList with the return value, when calling synchronously. On the DBus service side, when receiving a method call, we now pass the Gio.UnixFDList received from DBus to the called method. Previously, sync methods were passed the parameters, and async methods were passed the parameters plus the Gio.DBusInvocation object. Appending the Gio.UnixFDList to those parameters also should not break existing code. See the new tests in installed-tests/js/testGDBus.js for examples of calling methods with FD lists. - We have observed on the CI server that GJS 1.55.90 will hang forever while running the test suite compiled with GCC 9.0.0 and configured with the --enable-asan and --enable-ubsan arguments. This should be addressed in one of the following 1.55.x releases. - Closed bugs and merge requests: * GDBus proxy overrides should support Gio.DBusProxy.call_with_unix_fd_list() [#204, !263, Philip Chimento] * Add regression tests for GObject vfuncs [!259, Jason Hicks] * GjsPrivate: Sources should be C files [!262, Philip Chimento] * build: Vendor last-good version of AX_CODE_COVERAGE [!264, Philip Chimento]