tinygo-org/tinygo

📋 Changes

• machine
• esp32c3: correct pin interrupt setup call that was overlooked from #5320
• runtime
• esp32s3: wait for TIMG0 update register to clear before reading timer registers
• net
• update net module to a version that is backwards compatible with Go 1.25.x to fix #5332

📋 Changes

• general
• go.mod, compiler: bump minimum Go version to 1.23
• builder: support Go 1.26 now
• feat: add inheritable-only field to filter processor-level targets (#5270)
• feature: add esp32flash flash method for esp32s3/esp32c3/esp32/esp8266
• flashing: introduce flash method 'esp32jtag' for esp32c3/esp32s3 targets
• fashing: add "adb" flash method using Android Debug Bridge
• main: auto-use best available flashing options on esp32
• + 137 more

📋 Changes

• machine
• nrf: fix flash writes when SoftDevice is enabled
• runtime
• runtime: avoid fixed math/rand sequence on RP2040/RP2350 (#5124)
• runtime: add calls to initRand() during run() for all schedulers
• runtime: call initRand() before initHeap() during initialization
• runtime: use rand_hwrng hardwareRand for RP2040/RP2350 (#5135)
• libs
• + 1 more

📋 Changes

• general
• all: add full LLVM 20 support
• core: feat: enable //go:linkname pragma for globals
• core: feature: Add flag to ignore go compatibility matrix (#5078)
• compiler
• emit an error when the actual arch doesn't match GOARCH
• mark string parameters as readonly
• use Tarjan's SCC algorithm to detect loops for defer
• + 77 more

📋 Changes

• general
• all: add Go 1.25 support
• net: update to latest tinygo net package
• docs: clarify build verification step for macOS users
• Add flag to skip Renesas SVD builds
• build
• Makefile: install missing dlmalloc files
• flash: add -o flag support to save built binary (Fixes #4937) (#4942)
• + 40 more

📋 Changes

• general
• `go.*`: upgrade `golang.org/x/tools` to v0.30.0
• `all`: add support for LLVM 20
• build
• go back to using MinoruSekine/setup-scoop for Windows CI builds
• `flake.*`: upgrade to nixpkgs 25.05, LLVM 20
• `Makefile`: only detect ccache command when needed
• `Makefile`: create random filename inside rule
• + 86 more

📋 Changes

• general
• add the Boehm-Demers-Weiser GC on Linux
• ci
• add more tests for wasm and baremetal
• compiler
• crypto/internal/sysrand is allowed to use unsafe signatures
• examples
• add goroutine benchmark to examples
• + 38 more

📋 Changes

• general
• add initial Go 1.24 support
• add support for LLVM 19
• update license for 2025
• make small corrections for README regarding wasm
• use GOOS and GOARCH for building wasm simulated boards
• only infer target for wasm when GOOS and GOARCH are set correctly, not just based on file extension
• add test-corpus-wasip2
• + 57 more

📋 Changes

• general
• update cmsis-svd library
• use default UART settings in the echo example
• `goenv`: also show git hash with custom build of TinyGo
• `goenv`: support parsing development versions of Go
• `main`: parse extldflags early so we can report the error message
• compiler
• `builder`: whitelist temporary directory env var for Clang invocation to fix Windows bug
• + 56 more

📋 Changes

• general
• fix `GOOS=wasip1` for `tinygo test`
• add `-C DIR` flag
• add initial documentation for project governance
• add `-ldflags='-extldflags=...'` support
• improve usage message with `tinygo help` and when passing invalid parameters
• compiler
• `builder`: remove environment variables when invoking Clang, to avoid the environment changing the behavior
• + 38 more

📋 Changes

• Go 1.23 support (including the new [range-over-func](https://go.dev/wiki/RangefuncExperiment) language feature)
• WASI preview 2 support
• MIPS little endian support (big endian support is still experimental), so you can use `GOARCH=mipsle`
• softfloat support for ARM and MIPS
• improved error messages
• general
• use latest version of x/tools
• add chromeos 9p support for flashing
• + 52 more

📋 Changes

• general
• fix wasi-libc include headers on Nix
• apply OpenOCD commands after target configuration
• fix a minor race condition when determining the build tags
• support UF2 drives with a space in their name on Linux
• add LLVM 18 support
• drop support for Go 1.18 to be able to stay up to date
• compiler
• + 41 more

📋 Changes

• general
• update the `net` submodule to updated version with `Buffers` implementation
• compiler
• `syscall`: add wasm_unknown tag to some additional files so it can compile more code
• standard library
• `runtime`: add Frame.Entry field

📋 Changes

• general
• fix Binaryen build in make task
• update final build stage of Docker `dev` image to go1.22
• only use GHA cache for building Docker `dev` image
• update the `net` submodule to latest version
• compiler
• `interp`: make getelementptr offsets signed
• `interp`: return a proper error message when indexing out of range

📋 Changes

• Go 1.22 support
• macOS arm64 native binary release build
• Nix flake support
• LLVM 17
• general
• remove LLVM 14 support
• add LLVM 17 support, and use it by default
• add Nix flake support
• + 66 more

📋 Changes

• general
• add LLVM 16 support, use it by default
• compiler
• `build`: work around a race condition by building Go SSA serially
• `compiler`: fix a crash by not using the LLVM global context types
• `interp`: don't copy unknown values in `runtime.sliceCopy` to fix miscompile
• `interp`: fix crash in error report by not returning raw LLVM values
• standard library
• + 9 more

📋 Changes

• general
• Go 1.21 support
• use https for renesas submodule #3856
• ci: rename release-double-zipped to something more useful
• ci: update Node.js from version 14 to version 16
• ci: switch GH actions builds to use Go 1.21 final release
• docker: update clang to version 15
• docker: use Go 1.21 for Docker dev container build
• + 58 more

📋 Changes

• The version was set to 0.28.0-dev in the v0.28.0 release, while it should not have the -dev prefix. This is fixed in v0.28.1.
• A small bugfix for SPI on the rp2040 is included.

📋 Changes

• Much improved reflect support, which means that many packages that previously didn't properly work are now mostly or entirely supported.
• Added `//go:wasmimport` following [upstream Go](https://github.com/golang/go/issues/59149). This is the supported way to import functions, other ways (`//export` and the like) may stop working in the future.
• general
• fix parallelism in the compiler on Windows by building LLVM with thread support
• support qemu-user debugging
• make target JSON msd-volume-name an array
• print source location when a panic happens in -monitor
• `test`: don't print `ok` for a successful compile-only
• + 126 more

📋 Changes

• general
• all: update musl
• all: remove "acm:"` prefix for USB vid/pid pair
• all: add support for LLVM 15
• all: use DWARF version 4
• all: add initial (incomplete) support for Go 1.20
• all: add `-gc=custom` option
• `main`: print ldflags including ThinLTO flags with -x
• + 85 more

📋 Changes

• general
• remove support for LLVM 13
• remove calls to deprecated ioutil package
• move from `os.IsFoo` to `errors.Is(err, ErrFoo)`
• fix for builds using an Android host
• make interp timeout configurable from command line
• ignore ports with VID/PID if there is no candidates
• drop support for Go 1.16 and Go 1.17
• + 71 more

📋 Changes

• command line
• change to ignore PortReset failures
• compiler
• `compiler`: darwin/arm64 is aarch64, not arm
• `compiler`: don't clobber X18 and FP registers on darwin/arm64
• `compiler`: fix issue with methods on generic structs
• `compiler`: do not try to build generic functions
• `compiler`: fix type names for generic named structs
• + 42 more

📋 Changes

• command line
• remove support for go 1.15
• remove support for LLVM 11 and LLVM 12
• add initial Go 1.19 beta support
• `test`: fix package/... syntax
• compiler
• add support for the embed package
• `builder`: improve error message for "command not found"
• + 39 more

📋 Changes

• [esp32-c3-12f](https://docs.ai-thinker.com/_media/esp32/docs/esp-c3-12f_specification.pdf)
• [macropad-rp2040](https://www.adafruit.com/product/5128)
• [teensy41](https://www.pjrc.com/store/teensy41.html)
• [thingplus-rp2040](https://www.sparkfun.com/products/17745)
• [xiao-ble](https://www.seeedstudio.com/Seeed-XIAO-BLE-nRF52840-p-5201.html)
• command line
• add `-work` flag
• add Go 1.18 support
• + 90 more

📋 Changes

• [blues wireless Swan](https://blues.io/products/swan/)
• [M5Stack](https://docs.m5stack.com/en/core/basic)
• [M5Stamp C3](https://docs.m5stack.com/en/core/stamp_c3)
• [Seeed LoRa-E5 Development Kit](https://www.seeedstudio.com/LoRa-E5-Dev-Kit-p-4868.html)
• [ST Micro STM32F469 "Discovery"](https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-mpu-eval-tools/stm32-mcu-mpu-eval-tools/stm32-discovery-kits/32f469idiscovery.html)
• [ST Micro "Nucleo" WL55JC](https://www.st.com/en/evaluation-tools/nucleo-wl55jc.html)
• [The Things Industries Generic Node Sensor Edition](https://www.genericnode.com/docs/sensor-edition/)
• command line
• + 99 more

📋 Changes

• command line
• drop support for LLVM 10
• `build`: drop support for LLVM targets in the -target flag
• `build`: fix paths in error messages on Windows
• `build`: add -p flag to set parallelism
• `lldb`: implement `tinygo lldb` subcommand
• `test`: use emulator exit code instead of parsing test output
• `test`: pass testing arguments to wasmtime
• + 81 more

📋 Changes

• command line
• add support for Go 1.17
• improve Go version detection
• add support for the Black Magic Probe (BMP)
• add a flag for creating cpu profiles
• compiler
• `builder:` list libraries at the end of the linker command
• `builder:` strip debug information at link time instead of at compile time
• + 57 more

📋 Changes

• command line
• don't consider compile-only tests as failing
• add -test flag for `tinygo list`
• escape commands while printing them with the -x flag
• make flash-command portable and safer to use
• use `extended-remote` instead of `remote` in GDB
• detect specific serial port IDs based on USB vid/pid
• add a flag to the command line to select the serial implementation
• + 53 more

📋 Changes

• command line
• drop support for Go 1.11 and 1.12
• throw an error when no target is specified on Windows
• improve error messages in `getDefaultPort()`, support for multiple ports
• remove `-cflags` and `-ldflags` flags
• implement `-ldflags="-X ..."`
• add `-print-allocs` flag that lets you print all heap allocations
• openocd commands in tinygo command line
• + 109 more