# Syncthing crashing after updating to v1.27.1 / Windows 7 / runtime.asmstdcall()

**URL:** https://forum.syncthing.net/t/syncthing-crashing-after-updating-to-v1-27-1-windows-7-runtime-asmstdcall/21248
**Category:** Support
**Created:** [December 11, 2023, 9:13am UTC](https://forum.syncthing.net/t/syncthing-crashing-after-updating-to-v1-27-1-windows-7-runtime-asmstdcall/21248 "2023-12-11T09:13:47Z")
**Posts on this page:** 1
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### Author: ![calmh](https://forum.syncthing.net/user_avatar/forum.syncthing.net/calmh/32/15311_2.png) [@calmh](https://forum.syncthing.net/u/calmh)
#### Post date: [December 11, 2023, 9:23am UTC](https://forum.syncthing.net/t/syncthing-crashing-after-updating-to-v1-27-1-windows-7-runtime-asmstdcall/21248/2 "2023-12-11T09:23:09Z")

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Yeah, [apparently](https://forum.syncthing.net/t/runtime-asmstdcall/21239) the update to a newer point release of Go tickles an issue on Windows 7, which is unsupported since Go 1.21. (We switched to Go 1.21 with the Syncthing 1.24.0 release in August, but apparently things kept trucking for a while longer.)

Edit: [Go 1.21.5 is the breakage point](https://github.com/golang/go/issues/64622).

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