Release Notes

0.8.0

improve support for building and testing muon using meson
support b_lto_threads

✓ 0.7.0

released on 2026.10.04

more cross file support
add a way to disable docs
set more muon meson defaults to improve drop in behavior
fully implement meson.add_devenv
improvements to rpath fixer
improve haiku support
bump meson support to 1.11
- 1.8.0
  - New argument android_exe_type for executables stub
  - Changes to the b_sanitize option
  - i18n module xgettext stub
  - version_compare now accept multiple compare strings
  - ~~Improvements to Objective-C and Objective-C++~~
  - Per project subproject options rewrite*
    - Note: internals are done, but some questionable edge cases such as supporting -U and -A, or setting project options without yielding them using -D:foo=bar syntax are not implemented.
- 1.9.0
  - Array .flatten() method
  - ~~Support response files for custom targets~~ (postponing for now, also unclear why this would be needed since custom_targets already have rsp-like behavior using muon internal exe -a)
  - Added license keyword to pkgconfig.generate
  - pkgconfig.generate supports internal dependencies in requires
- 1.10.0
  - Support for the counted_by attribute
  - Added a values() method for dictionaries
  - Add cmd_array method to ExternalProgram
  - Added OS/2 support (shortname kwarg / os2_emxomf builtin opt) stub
  - Array .slice() method
  - -Db_vscrt on clang
  - Added build_subdir arg to various targets
  - Methods from compiler object now accept strings for include_directories (already supported)
  - Using meson.get_compiler() to get a language from another project is marked (already an error)
  - Add a configure log in meson-logs (already supported)
  - Added new namingscheme option
  - New method to handle GNU and Windows symbol visibility for C/C++/ObjC/ObjC++
- 1.11.0
  - BuildTarget(install_dir) length > 1 replaced with keywords
  - Deprecate should_fail and rename it to expected_fail, also introduce expected_exitcode
  - install_man and install_headers: add support for install_tag kwarg
  - Added link_early_args to targets performing linking
  - Machine files now expand ~ as the user's home directory
  - windows.compile_resources now detects header changes with rc.exe
  - Added implicit_include_directories argument to windows.compile_resources
  - Console kwarg on run_command
10 contributors:
- Daksh Mamodiya (3)
- Jan200101 (1)
- Juri Sacchetta (2)
- Ross Burton (1)
- Stone Tickle (137)
- VaiTon (1)
- kzc (11)
- moi15moi (7)
- tox (1)
- uni-dos (1)

✓ 0.6.0

released on 2026.06.21

internals / language features
- in script mode: refactor how scope works, all variable resolution happens at compile time, globals are disallowed. Improves performance and clarifies scoping rules. (github pr)[https://github.com/muon-build/muon/pull/241]
- all memory is tracked an managed with an arena allocator. This should improve memory usage, performance, and developer ergonomics.
toolchains
- toolchains are now defined in scripts: src/script/runtime/toolchains.meson
- tcc
- clang-cl
- ccache and sccache
documentation
- muon help
- source links in reference manual
tooling
- DAP debugger protocol support & dcmake integration github issue
wayland module
support cross/native files
12 contributors:
- Christopher Wellons (1)
- Daniel Wagner (1)
- Fredrik Foss-Indrehus (1)
- kzc (20)
- Michael Forney (3)
- Sertonix (1)
- Stone Tickle (544)
- Teselka (9)
- VaiTon (14)
- Vincent Torri (2)
- vtorri (1)
- Zephyr Lykos (1)

✓ 0.5.0

released on 2025.07.28

muon analyze now has an LSP mode
pkg-config-exec backend added. muon now supports shelling out to pkg-config (or pkgconf).
bump meson support to 1.7
more builtin dependency handlers
lots of bug fixes
9 contributors:
- Jonathan Schleifer (3)
- LoneFox78 (1)
- Michael Forney (1)
- NRK (6)
- Stone Tickle (416)
- VaiTon (3)
- Vincent Torri (2)
- kzc (4)
- m-hugo (1)

✓ 0.4.0

released on 2025.02.12

More windows improvements
- only ~30 tests failing with msvc
- vsenv ported from meson
- .exe deployed by CI
Coverage targets are now supported thanks to Andrew McNulty
Various default compiler options were brought in line with meson thanks to Michal Sieron
XCode backend
Improvements/bug fixes for script modules
gnome module improvements thanks to sewn.
dependency() overhaul, now more closely matches meson's implementation
- Custom dependency handlers can be defined in script mode.
docs/*.md ported to mdbook and hosted at https://docs.muon.build
A reference manual containing all the functions, modules, objects, and methods that muon knows about is auto-generated on every build.
- It also generates documentation for script modules using doc comments!
An experimental UI
As always, lots of bugs fixed!
12 contributors:
- Andrew McNulty (1)
- Arsen Arsenović (1)
- Eli Schwartz (1)
- Jonathan Schleifer (1)
- Jürg Billeter (1)
- Michael Forney (2)
- Michal Sieron (4)
- Stone Tickle (303)
- Theo Paris (1)
- Vincent Torri (3)
- kzc (1)
- sewn (4)

✓ 0.3.0

released on 2024.09.24

Brand-new interpreter: https://mochiro.moe/posts/10-muon-internals/
Lots of windows improvements
- bootstrap.bat
- Simple tests passing
Lots of macOS improvements
- All tests passing
- Universal binary deployed by CI
Script modules introduced: a way of writing muon modules with mostly normal meson code.
- i18n module
- gnome module (wip)
Embedded cross-platform samurai implementation
Lots of bugs fixed!
17 contributors:
- Andrea Pappacoda (1)
- Andrew McNulty (11)
- Eli Schwartz (1)
- Filipe Laíns (4)
- JCWasmx86 (1)
- Michael Forney (2)
- Michal Sieron (2)
- Seedo Paul (27)
- Sertonix (3)
- Stone Tickle (497)
- Thomas Adam (1)
- Tokunori Ikegami (1)
- Vincent Torri (12)
- kzc (2)
- rofl0r (1)
- sewn (1)
- torque (1)

✓ 0.2.0

released on 2023.04.07

✓ 0.1.0

released on 2022.10.11

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