OTP 20.0.4 已发布，OTP (Open Telecom Platform) 是一个开源的 Erlang 分发和一个用 Erlang 编写的应用服务器。
OTP-14558 Application(s): erts Related Id(s): ERL-468, OTP-11997 A timer internal bit-field used for storing scheduler id was too small. As a result, VM internal timer data structures could become inconsistent when using 1024 schedulers on the system. Note that systems with less than 1024 schedulers are not effected by this bug. This bug was introduced in ERTS version 7.0 (OTP 18.0). OTP-14554 Application(s): erts Related Id(s): ERL-468, OTP-14356 Automatic cleanup of a BIF timer, when the owner process terminated, could race with the timeout of the timer. This could cause the VM internal data structures to become inconsistent which very likely caused a VM crash. This bug was introduced in ERTS version 9.0 (OTP 20.0).