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+## Call for testing for next release
+
+At the beginning of next cycle we aim to merge the [option refactor
+branch](https://github.com/mesonbuild/meson/pull/13441). This is a
+_huge_ change that will touch pretty much all code.
+
+The main change it brings is that you can override any builtin option
+value for any subproject (even the top one) entirely from the command
+line. This means that you can, for example, enable optimizations on
+all subprojects but not on the top level project.
+
+We have done extensive testing and all our tests currently
+pass. However it is expected that this will break some workflows. So
+please test the branch when it lands and report issues. We want to fix
+all regressions as soon as possible, preferably far before the next rc
+release.