This exciting new release makes the /opt/fil distribution even more useful than before! This release also fixes a bunch of bugs and improves performance.

/opt/fil improvements:

• now includes rsync (and its dependencies)
• OpenSSH rebased to 10.3p1, including mlkem post-quantum crypto and systemd integration patches
• coreutils build that supports selinux
• on systems that have SELinux enabled, the setup.sh script will now label everything OpenSSH uses correctly
• if systemd is detected, setup.sh will now prompt you to set the /opt/fil/sbin/sshd as your ssh daemon
• use zstd version that includes Fil-C changes

Other improvements:

• make pidfd syscalls work in musl builds
• roll back InvisiCaps 1.5 change, since it was not a performance win on follow-up testing, and did carry performance liabilities
• improve call performance by >2% by introducing a new calling convention (see https://fil-c.org/calling_convention)
• fix crash in heap dump debugging tool
• fix compiler crash in case of gigantic thread locals
• support write syscall via syscall(2)
• expose raw zsys_abort function that really aborts (instead of using a Fil-C user panic)
• support sfence intrinsic
• add support for remaining masked load/store intrinsics in MMX, SSE, and AVX up to AVX2
• support openat2 syscall

Guide to the available files:

• filc-0.679-linux-x86_64.tar.xz is the traditional, self-contained "pizfix" distribution. It only includes the compiler, doesn't require root, and is based on the musl libc. This is recommended for quickly trying out Fil-C.
• optfil-0.679-linux-x86_64.tar.xz is the /opt/fil distribution. It includes many useful programs like OpenSSH, sudo, tmux, and git. It's based on glibc 2.40, and requires root permissions. This is recommended for giving Fil-C deeper scrutiny.