It's unclear which minimum Linux kernel version the Zig standard library actually supports

[alexrp]

zig/lib/std/Target.zig

Lines 369 to 370 in 3e9ab6a

	/// The default `VersionRange` represents the range that the Zig Standard Library
	/// bases its abstractions on.

zig/lib/std/Target.zig

Lines 486 to 494 in 3e9ab6a

	.linux => .{
	.linux = .{
	.range = .{
	.min = .{ .major = 4, .minor = 19, .patch = 0 },
	.max = .{ .major = 6, .minor = 5, .patch = 7 },
	},
	.glibc = .{ .major = 2, .minor = 28, .patch = 0 },
	},
	},

Yet the release notes say Linux 3.16+.

Mainly bringing this up because I came across this code:

zig/lib/std/fs/File.zig

Lines 1020 to 1037 in 3e9ab6a

	// NOSYS happens when `statx` is unsupported, which is the case on kernel versions before 4.11
	// Here, we call `fstat` and fill `stx` with the data we need
	.NOSYS => {
	const st = try posix.fstat(self.handle);
	stx.mode = @as(u16, @intCast(st.mode));
	// Hacky conversion from timespec to statx_timestamp
	stx.atime = std.mem.zeroes(l.statx_timestamp);
	stx.atime.tv_sec = st.atim.tv_sec;
	stx.atime.tv_nsec = @as(u32, @intCast(st.atim.tv_nsec)); // Guaranteed to succeed (tv_nsec is always below 10^9)
	stx.mtime = std.mem.zeroes(l.statx_timestamp);
	stx.mtime.tv_sec = st.mtim.tv_sec;
	stx.mtime.tv_nsec = @as(u32, @intCast(st.mtim.tv_nsec));
	stx.mask = l.STATX_BASIC_STATS | l.STATX_MTIME;
	},

And:

❯ man statx|grep 'was added'
       statx() was added in Linux 4.11; library support was added in glibc 2.28.

[andrewrk]

0d4d8df

I neglected to update the release notes.

[alexrp]

Closing since this was cleared up in #20389. @andrewrk probably want to label this issue for release notes?