No major changes in AudioIPC between Firefox 129 and 130, but `mio` was updated from 0.8.8 to 1.0.1 in bug 1910523 (AudioIPC dependency change) and bug 1910513 (actual `mio` update) which landed in 130. That `mio` update includes [this](https://github.com/tokio-rs/mio/commit/04c3bb6ef23d217ee7f8f68e3e6d0d9fcddd1520) fix to the named pipe code, which is likely related to the crash spike. I'm not sure if that changed caused the spike or revealed an existing bug in AudioIPC; I'll investigate further.
Bug 1916629 Comment 3 Edit History
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No major changes in AudioIPC between Firefox 129 and 130, but `mio` was updated from 0.8.8 to 1.0.1 in bug 1910523 (AudioIPC dependency change) and bug 1910513 (actual `mio` update) which landed in 130. That `mio` update includes [this](https://github.com/tokio-rs/mio/commit/04c3bb6ef23d217ee7f8f68e3e6d0d9fcddd1520) fix to the named pipe code, which is likely related to the crash spike. I'm not sure if that change caused the spike or revealed an existing bug in AudioIPC; I'll investigate further.