Add changelog for the 1.21.0 release

Change-Id: Ia9d2a5bfdd8407f7520de98fe6c09c36be43c6cc
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

1 files changed, 56 insertions, 0 deletions

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+# General
+
+* A new qbsModuleProviders property was added to Project and Product items which allows
+  to specify which providers will be run (QBS-1604).
+* Added a new library for reading *.pc files which allows to avoid launching multiple pkg-config
+  processes and also gives QBS more information about dependencies between *.pc files (QBS-1615).
+* A new qbspkgconfig provider was added which will replace the fallback provider (QBS-1614).
+  This new provider uses the built-in library and is capable of setting Qt libraries as well.
+* capnproto and protobuf modules can now use runtime provided by the qbspkgconfig provider.
+* A new ConanfileProbe.verbose property was added which can be useful to debug problems with
+  Conan.
+* Qbs no longer migrates the "profiles/" dir from earlier Qbs versions (QTCREATORBUG-26475).
+  Old directories might be cleaned up manually.
+* FileInfo now always uses high-precision timer on all OSes.
+* Fixed a problem with overriding stringList properties in ModuleProviders from command-line.
+
+# C/C++ Support
+
+* Added support for c++23.
+* Add Elbrus E2K architecture for the GCC toolchain (QBS-1675).
+* COSMIC cpp module now avoids using relative file paths as much as possible.
+* Some refactoring was done in the cpp modules to share more code.
+
+# Android Support
+
+* Added Android.ndk.buildId property which allows to overwrite the default value (sha1) for
+  the --build-id linker flag.
+* Fixed reading *.prl files with Qt >= 6.0.
+* Fixed rcc path with Qt >= 6.2.
+
+# Documentation
+
+* Added a new page with the list of ModuleProviders.
+* Qt provider now has its own page.
+* Clarified that application won't be runnable by default, unless env or rpaths are set correctly.
+
+# Infrastructure
+
+* Added standalone job for building documentation.
+* Xcode version was bumped to 12.5.1.
+* Added OpenSUSE Leap docker image.
+* Added Android tests with different NDK versions.
+* Fixed QMake build with Qt 6.
+
+# Contributors
+
+* Christian Kandeler
+* Christian Stenger
+* Davide Pesavento
+* Denis Shienkov
+* Ivan Komissarov
+* Kai Dohmen
+* Orgad Shaneh
+* Raphaël Cotty
+* Richard Weickelt
+* Thorbjørn Lindeijer