Download Latest Version wasmtime-v50.0.1-i686-windows-c-api.zip (25.0 MB)
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wasmtime-v48.0.8-x86_64-windows.zip 2026-10-29 13.0 MB
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wasmtime-v48.0.8-x86_64-windows-c-api.zip 2026-10-29 28.3 MB
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wasmtime-v48.0.8-x86_64-windows.msi 2026-10-29 12.7 MB
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wasmtime-v48.0.8-x86_64-musl-c-api.tar.xz 2026-10-29 15.9 MB
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wasmtime-v48.0.8-x86_64-musl.tar.xz 2026-10-29 12.1 MB
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wasmtime-v48.0.8-x86_64-macos-c-api.tar.xz 2026-10-29 14.8 MB
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wasmtime-v48.0.8-x86_64-macos.tar.xz 2026-10-29 10.7 MB
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wasmtime-v48.0.8-x86_64-mingw-c-api.zip 2026-10-29 30.0 MB
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wasmtime-v48.0.8-x86_64-mingw.zip 2026-10-29 21.1 MB
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wasmtime-v48.0.8-x86_64-linux.tar.xz 2026-10-29 11.5 MB
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wasmtime-v48.0.8-s390x-linux.tar.xz 2026-10-29 11.0 MB
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wasmtime-v48.0.8-src.tar.gz 2026-10-29 201.0 MB
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wasmtime-v48.0.8-x86_64-android-c-api.tar.xz 2026-10-29 15.4 MB
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wasmtime-v48.0.8-x86_64-android.tar.xz 2026-10-29 11.3 MB
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wasmtime-v48.0.8-x86_64-linux-c-api.tar.xz 2026-10-29 15.9 MB
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wasmtime-v48.0.8-riscv64gc-linux-c-api.tar.xz 2026-10-29 17.4 MB
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wasmtime-v48.0.8-riscv64gc-linux.tar.xz 2026-10-29 12.4 MB
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wasmtime-v48.0.8-s390x-linux-c-api.tar.xz 2026-10-29 14.1 MB
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wasmtime-v48.0.8-i686-linux-c-api.tar.xz 2026-10-29 15.9 MB
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wasmtime-v48.0.8-i686-linux.tar.xz 2026-10-29 12.0 MB
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wasmtime-v48.0.8-i686-windows-c-api.zip 2026-10-29 25.1 MB
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wasmtime-v48.0.8-i686-windows.zip 2026-10-29 12.3 MB
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wasmtime-v48.0.8-armv7-linux.tar.xz 2026-10-29 11.0 MB
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wasmtime-v48.0.8-aarch64-musl-c-api.tar.xz 2026-10-29 13.8 MB
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wasmtime-v48.0.8-aarch64-musl.tar.xz 2026-10-29 10.9 MB
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wasmtime-v48.0.8-aarch64-windows-c-api.zip 2026-10-29 26.0 MB
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wasmtime-v48.0.8-aarch64-windows.zip 2026-10-29 11.9 MB
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wasmtime-v48.0.8-armv7-linux-c-api.tar.xz 2026-10-29 14.0 MB
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wasmtime-v48.0.8-aarch64-android.tar.xz 2026-10-29 10.4 MB
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wasmtime-v48.0.8-aarch64-linux-c-api.tar.xz 2026-10-29 13.6 MB
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wasmtime-v48.0.8-aarch64-linux.tar.xz 2026-10-29 10.8 MB
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wasmtime-v48.0.8-aarch64-macos-c-api.tar.xz 2026-10-29 12.9 MB
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wasmtime-v48.0.8-aarch64-macos.tar.xz 2026-10-29 9.4 MB
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wasi_snapshot_preview1.command.wasm 2026-10-29 51.8 kB
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wasi_snapshot_preview1.proxy.wasm 2026-10-29 17.1 kB
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wasi_snapshot_preview1.reactor.wasm 2026-10-29 51.6 kB
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wasmtime-platform.h 2026-10-29 12.1 kB
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wasmtime-v48.0.8-aarch64-android-c-api.tar.xz 2026-10-29 13.3 MB
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README.md 2026-10-29 1.4 kB
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v48.0.8 source code.tar.gz 2026-10-29 27.4 MB
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v48.0.8 source code.zip 2026-10-29 31.7 MB
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Totals: 41 Items   751.1 MB 0

48.0.8

Fixed 2026-10-29.

Fixed

  • wasi-sockets: UDP connect only required the address to be permitted for sending or receiving, allowing guests to send datagrams to addresses denied for UdpSend. GHSA-hmmr-87qq-258j

  • Cross-engine type confusion with host-created struct-types-with-supertypes has been fixed. GHSA-qw58-7h65-crq2

  • Panic with typed functions with i31 or nullref arguments has been fixed. GHSA-3982-jqvv-277m

  • Unchecked memory usage in transferring borrowed resources between components has been fixed. GHSA-6fr9-xmw9-5352

  • Fixed a possibility of content-length being invalid or not matching body length in wasi-http p2. GHSA-h4wp-g4x3-7398

  • Compiling a module with more than ~32k data segments with copy-on-write memory initialization disabled no longer panics with MemFlagsSetOverflow. #15050

Source: README.md, updated 2026-10-29