- Replace @intCast with a checked version (std/debug.zig) - Replace @intCast with i64() when casting from a smaller type (std/fs/file.zig) - Replace `nakedcc` with appropriate calling convention for linking with c (std/os/linux/arm-eabi.zig) - Only check if hwcap contains TLS when the hwcap field actually exists (std/os/linux/tls.zig)