Crash on launch attempt after last update

[uberscientist]

$ steam
Running Steam on arch rolling 64-bit
STEAM_RUNTIME is enabled automatically
/home/nak/.local/share/Steam/steam.sh: line 756:  9111 Illegal instruction     (core dumped) $STEAM_DEBUGGER "$STEAMROOT/$STEAMEXEPATH" "$@"

I get the same with STEAM_RUNTIME=0 too.

If anyone needs more info let me know!

[OrdinaryMagician]

Does your dmesg show something like this? I had the same issue too and had to delete the whole thing and redownload.
traps: steam[15676] trap invalid opcode ip:568542f9 sp:ff921660 error:0 in steam[5661d000+3a2000]

[mikebryant]

I think this is a duplicate of #4077

[uberscientist]

Thanks guys the "deleting ~/.local/share/Steam/package/beta, then running steam --reset." work around seems to have worked for now
edit
Nevermind, it launched, then updated again, and now it's crashing, at least it's uploading the crash dump now...