See the WHATSNEW file for details.
See the WHATSNEW file for details. The biggest change in musl is the switch to 64-bit time_t for 32-bit targets, however WASI libc was already using 64-bit time_t. The main change affecting WASI is an update to Unicode 12.1.0.
See the WHATSNEW file for details; among other things, this contains new math library implementation for log/exp/pow.
This incoporates pieces from musl-libc, cloudlibc, cloudabi, libpreopen, and dlmalloc, as well as a significant amount of new code.