diff --git a/Cargo.lock b/Cargo.lock
index 3d7e72446..33b438786 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1145,9 +1145,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
 [[package]]
 name = "libc"
-version = "0.2.135"
+version = "0.2.136"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68783febc7782c6c5cb401fbda4de5a9898be1762314da0bb2c10ced61f18b0c"
+checksum = "55edcf6c0bb319052dea84732cf99db461780fd5e8d3eb46ab6ff312ab31f197"
 
 [[package]]
 name = "libloading"
@@ -2076,21 +2076,32 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.15"
+version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d634a985c4d4238ec39cacaed2e7ae552fbd3c476b552c1deac3021b7d7eaf0c"
+checksum = "0fab5c8b9980850e06d92ddbe3ab839c062c801f3927c0fb8abd6fc8e918fbca"
 dependencies = [
  "itoa",
  "libc",
  "num_threads",
+ "serde",
+ "time-core",
  "time-macros",
 ]
 
 [[package]]
-name = "time-macros"
-version = "0.2.4"
+name = "time-core"
+version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42657b1a6f4d817cda8e7a0ace261fe0cc946cf3a80314390b22cc61ae080792"
+checksum = "2e153e1f1acaef8acc537e68b44906d2db6436e2b35ac2c6b42640fff91f00fd"
+
+[[package]]
+name = "time-macros"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "65bb801831d812c562ae7d2bfb531f26e66e4e1f6b17307ba4149c5064710e5b"
+dependencies = [
+ "time-core",
+]
 
 [[package]]
 name = "typenum"
diff --git a/src/uu/chmod/Cargo.toml b/src/uu/chmod/Cargo.toml
index c794ad821..deacbc0f2 100644
--- a/src/uu/chmod/Cargo.toml
+++ b/src/uu/chmod/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/chmod.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["fs", "mode"] }
 
 [[bin]]
diff --git a/src/uu/chown/src/chown.rs b/src/uu/chown/src/chown.rs
index c64290cd2..b2a0dcd85 100644
--- a/src/uu/chown/src/chown.rs
+++ b/src/uu/chown/src/chown.rs
@@ -246,6 +246,19 @@ fn parse_spec(spec: &str, sep: char) -> UResult<(Option<u32>, Option<u32>)> {
     } else {
         None
     };
+
+    if user.chars().next().map(char::is_numeric).unwrap_or(false)
+        && group.is_empty()
+        && spec != user
+    {
+        // if the arg starts with an id numeric value, the group isn't set but the separator is provided,
+        // we should fail with an error
+        return Err(USimpleError::new(
+            1,
+            format!("invalid spec: {}", spec.quote()),
+        ));
+    }
+
     Ok((uid, gid))
 }
 
diff --git a/src/uu/cp/Cargo.toml b/src/uu/cp/Cargo.toml
index 15ce7c8f5..a54fdc212 100644
--- a/src/uu/cp/Cargo.toml
+++ b/src/uu/cp/Cargo.toml
@@ -21,7 +21,7 @@ path = "src/cp.rs"
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
 filetime = "0.2"
-libc = "0.2.135"
+libc = "0.2.136"
 quick-error = "2.0.1"
 selinux = { version="0.3", optional=true }
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["entries", "fs", "perms", "mode"] }
diff --git a/src/uu/hashsum/src/hashsum.rs b/src/uu/hashsum/src/hashsum.rs
index 2d01c9d64..87c79fe1f 100644
--- a/src/uu/hashsum/src/hashsum.rs
+++ b/src/uu/hashsum/src/hashsum.rs
@@ -278,8 +278,8 @@ pub fn uumain(mut args: impl uucore::Args) -> UResult<()> {
     let tag = matches.get_flag("tag");
     let nonames = *matches
         .try_get_one("no-names")
-        .unwrap_or(Some(&false))
-        .unwrap();
+        .unwrap_or(None)
+        .unwrap_or(&false);
     let status = matches.get_flag("status");
     let quiet = matches.get_flag("quiet") || status;
     let strict = matches.get_flag("strict");
diff --git a/src/uu/hostid/Cargo.toml b/src/uu/hostid/Cargo.toml
index 0938a1bec..6a81dd897 100644
--- a/src/uu/hostid/Cargo.toml
+++ b/src/uu/hostid/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/hostid.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore" }
 
 [[bin]]
diff --git a/src/uu/logname/Cargo.toml b/src/uu/logname/Cargo.toml
index e688346ce..ba300fbf1 100644
--- a/src/uu/logname/Cargo.toml
+++ b/src/uu/logname/Cargo.toml
@@ -15,7 +15,7 @@ edition = "2021"
 path = "src/logname.rs"
 
 [dependencies]
-libc = "0.2.135"
+libc = "0.2.136"
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore" }
 
diff --git a/src/uu/mkfifo/Cargo.toml b/src/uu/mkfifo/Cargo.toml
index f932697ff..e24204f94 100644
--- a/src/uu/mkfifo/Cargo.toml
+++ b/src/uu/mkfifo/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/mkfifo.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore" }
 
 [[bin]]
diff --git a/src/uu/mknod/Cargo.toml b/src/uu/mknod/Cargo.toml
index 7e21983ff..96ca9ab48 100644
--- a/src/uu/mknod/Cargo.toml
+++ b/src/uu/mknod/Cargo.toml
@@ -17,7 +17,7 @@ path = "src/mknod.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "^0.2.135"
+libc = "^0.2.136"
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["mode"] }
 
 [[bin]]
diff --git a/src/uu/nice/Cargo.toml b/src/uu/nice/Cargo.toml
index c062d4db3..0e435e4c3 100644
--- a/src/uu/nice/Cargo.toml
+++ b/src/uu/nice/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/nice.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 nix = { version = "0.25", default-features = false }
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore" }
 
diff --git a/src/uu/nohup/Cargo.toml b/src/uu/nohup/Cargo.toml
index 5603d96c0..9b13c7ec5 100644
--- a/src/uu/nohup/Cargo.toml
+++ b/src/uu/nohup/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/nohup.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 atty = "0.2"
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["fs"] }
 
diff --git a/src/uu/nproc/Cargo.toml b/src/uu/nproc/Cargo.toml
index e830b06a2..e351ab3c8 100644
--- a/src/uu/nproc/Cargo.toml
+++ b/src/uu/nproc/Cargo.toml
@@ -15,7 +15,7 @@ edition = "2021"
 path = "src/nproc.rs"
 
 [dependencies]
-libc = "0.2.135"
+libc = "0.2.136"
 num_cpus = "1.10"
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["fs"] }
diff --git a/src/uu/numfmt/src/format.rs b/src/uu/numfmt/src/format.rs
index 5e61ce794..b97993f21 100644
--- a/src/uu/numfmt/src/format.rs
+++ b/src/uu/numfmt/src/format.rs
@@ -272,14 +272,13 @@ fn transform_to(
     let (i2, s) = consider_suffix(s, &opts.to, round_method, precision)?;
     let i2 = i2 / (opts.to_unit as f64);
     Ok(match s {
-        None if precision > 0 => {
+        None => {
             format!(
                 "{:.precision$}",
                 round_with_precision(i2, round_method, precision),
                 precision = precision
             )
         }
-        None => format!("{}", i2),
         Some(s) if precision > 0 => {
             format!(
                 "{:.precision$}{}",
diff --git a/src/uu/pathchk/Cargo.toml b/src/uu/pathchk/Cargo.toml
index b25450b89..5475eaa8a 100644
--- a/src/uu/pathchk/Cargo.toml
+++ b/src/uu/pathchk/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/pathchk.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore" }
 
 [[bin]]
diff --git a/src/uu/pwd/src/pwd.rs b/src/uu/pwd/src/pwd.rs
index 732df19f6..b1e2b30ff 100644
--- a/src/uu/pwd/src/pwd.rs
+++ b/src/uu/pwd/src/pwd.rs
@@ -126,7 +126,10 @@ fn logical_path() -> io::Result<PathBuf> {
 #[uucore::main]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let matches = uu_app().try_get_matches_from(args)?;
-    let cwd = if matches.get_flag(OPT_LOGICAL) {
+    // if POSIXLY_CORRECT is set, we want to a logical resolution.
+    // This produces a different output when doing mkdir -p a/b && ln -s a/b c && cd c && pwd
+    // We should get c in this case instead of a/b at the end of the path
+    let cwd = if matches.get_flag(OPT_LOGICAL) || env::var("POSIXLY_CORRECT").is_ok() {
         logical_path()
     } else {
         physical_path()
diff --git a/src/uu/rmdir/Cargo.toml b/src/uu/rmdir/Cargo.toml
index a96a2cec1..b66ee12eb 100644
--- a/src/uu/rmdir/Cargo.toml
+++ b/src/uu/rmdir/Cargo.toml
@@ -17,7 +17,7 @@ path = "src/rmdir.rs"
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["fs"] }
-libc = "0.2.135"
+libc = "0.2.136"
 
 [[bin]]
 name = "rmdir"
diff --git a/src/uu/sync/Cargo.toml b/src/uu/sync/Cargo.toml
index dc5754e43..ea6652522 100644
--- a/src/uu/sync/Cargo.toml
+++ b/src/uu/sync/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/sync.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["wide"] }
 
 [target.'cfg(any(target_os = "linux", target_os = "android"))'.dependencies]
diff --git a/src/uu/tail/Cargo.toml b/src/uu/tail/Cargo.toml
index a912bf352..7abb18b3c 100644
--- a/src/uu/tail/Cargo.toml
+++ b/src/uu/tail/Cargo.toml
@@ -17,7 +17,7 @@ path = "src/tail.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 memchr = "2.5.0"
 notify = { version = "=5.0.0", features=["macos_kqueue"]}
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["ringbuffer", "lines"] }
diff --git a/src/uu/tee/Cargo.toml b/src/uu/tee/Cargo.toml
index 311e09875..1b3a44e67 100644
--- a/src/uu/tee/Cargo.toml
+++ b/src/uu/tee/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/tee.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 retain_mut = "=0.1.7" # ToDO: [2021-01-01; rivy; maint/MinSRV] ~ v0.1.5 uses const generics which aren't stabilized until rust v1.51.0
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["libc"] }
 
diff --git a/src/uu/test/Cargo.toml b/src/uu/test/Cargo.toml
index 28b7362b1..7e0fae115 100644
--- a/src/uu/test/Cargo.toml
+++ b/src/uu/test/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/test.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore" }
 
 [target.'cfg(target_os = "redox")'.dependencies]
diff --git a/src/uu/timeout/Cargo.toml b/src/uu/timeout/Cargo.toml
index 77adcfe57..48c632de0 100644
--- a/src/uu/timeout/Cargo.toml
+++ b/src/uu/timeout/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/timeout.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 nix = { version = "0.25", default-features = false, features = ["signal"] }
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["process", "signals"] }
 
diff --git a/src/uu/whoami/Cargo.toml b/src/uu/whoami/Cargo.toml
index f3a277e89..34402278f 100644
--- a/src/uu/whoami/Cargo.toml
+++ b/src/uu/whoami/Cargo.toml
@@ -22,7 +22,7 @@ uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=[
 windows-sys = { version = "0.42.0", default-features = false, features = ["Win32_NetworkManagement_NetManagement", "Win32_System_WindowsProgramming", "Win32_Foundation"] }
 
 [target.'cfg(unix)'.dependencies]
-libc = "0.2.135"
+libc = "0.2.136"
 
 [[bin]]
 name = "whoami"
diff --git a/src/uu/yes/Cargo.toml b/src/uu/yes/Cargo.toml
index 677d60a5f..47cd10f53 100644
--- a/src/uu/yes/Cargo.toml
+++ b/src/uu/yes/Cargo.toml
@@ -16,7 +16,7 @@ path = "src/yes.rs"
 
 [dependencies]
 clap = { version = "4.0", features = ["wrap_help", "cargo"] }
-libc = "0.2.135"
+libc = "0.2.136"
 uucore = { version=">=0.0.16", package="uucore", path="../../uucore", features=["pipes"] }
 
 [target.'cfg(any(target_os = "linux", target_os = "android"))'.dependencies]
diff --git a/src/uucore/Cargo.toml b/src/uucore/Cargo.toml
index d9489c281..a83090857 100644
--- a/src/uucore/Cargo.toml
+++ b/src/uucore/Cargo.toml
@@ -32,7 +32,7 @@ time = { version="0.3", optional=true, features = ["formatting", "local-offset",
 data-encoding = { version="2.1", optional=true }
 data-encoding-macro = { version="0.1.12", optional=true }
 z85 = { version="3.0.5", optional=true }
-libc = { version="0.2.135", optional=true }
+libc = { version="0.2.136", optional=true }
 once_cell = "1.13.1"
 os_display = "0.1.3"
 
diff --git a/tests/by-util/test_chown.rs b/tests/by-util/test_chown.rs
index a4634b0de..716e7f48f 100644
--- a/tests/by-util/test_chown.rs
+++ b/tests/by-util/test_chown.rs
@@ -423,6 +423,38 @@ fn test_chown_only_user_id() {
         .stderr_contains("failed to change");
 }
 
+#[test]
+fn test_chown_fail_id() {
+    // test chown 1111. file.txt
+
+    let scene = TestScenario::new(util_name!());
+    let at = &scene.fixtures;
+
+    let result = scene.cmd_keepenv("id").arg("-u").run();
+    if skipping_test_is_okay(&result, "id: cannot find name for group ID") {
+        return;
+    }
+    let user_id = String::from(result.stdout_str().trim());
+    assert!(!user_id.is_empty());
+
+    let file1 = "test_chown_file1";
+    at.touch(file1);
+
+    scene
+        .ucmd()
+        .arg(format!("{}:", user_id))
+        .arg(file1)
+        .fails()
+        .stderr_contains("invalid spec");
+
+    scene
+        .ucmd()
+        .arg(format!("{}.", user_id))
+        .arg(file1)
+        .fails()
+        .stderr_contains("invalid spec");
+}
+
 /// Test for setting the owner to a user ID for a user that does not exist.
 ///
 /// For example:
diff --git a/tests/by-util/test_numfmt.rs b/tests/by-util/test_numfmt.rs
index 72a9e39a9..821b8e70b 100644
--- a/tests/by-util/test_numfmt.rs
+++ b/tests/by-util/test_numfmt.rs
@@ -530,7 +530,7 @@ fn test_round() {
         new_ucmd!()
             .args(&[
                 "--to=si",
-                &format!("--round={}", method),
+                &format!("--round={method}"),
                 "--",
                 "9001",
                 "-9001",
@@ -542,6 +542,32 @@ fn test_round() {
     }
 }
 
+#[test]
+fn test_round_with_to_unit() {
+    for (method, exp) in [
+        ("from-zero", ["6", "-6", "5.9", "-5.9", "5.86", "-5.86"]),
+        ("towards-zero", ["5", "-5", "5.8", "-5.8", "5.85", "-5.85"]),
+        ("up", ["6", "-5", "5.9", "-5.8", "5.86", "-5.85"]),
+        ("down", ["5", "-6", "5.8", "-5.9", "5.85", "-5.86"]),
+        ("nearest", ["6", "-6", "5.9", "-5.9", "5.86", "-5.86"]),
+    ] {
+        new_ucmd!()
+            .args(&[
+                "--to-unit=1024",
+                &format!("--round={method}"),
+                "--",
+                "6000",
+                "-6000",
+                "6000.0",
+                "-6000.0",
+                "6000.00",
+                "-6000.00",
+            ])
+            .succeeds()
+            .stdout_only(exp.join("\n") + "\n");
+    }
+}
+
 #[test]
 fn test_suffix_is_added_if_not_supplied() {
     new_ucmd!()
diff --git a/tests/by-util/test_pwd.rs b/tests/by-util/test_pwd.rs
index 0ae63c895..0ae0cc909 100644
--- a/tests/by-util/test_pwd.rs
+++ b/tests/by-util/test_pwd.rs
@@ -90,6 +90,35 @@ fn test_symlinked_default() {
     env.ucmd.succeeds().stdout_is(env.subdir + "\n");
 }
 
+#[test]
+fn test_symlinked_default_posix() {
+    let mut env = symlinked_env();
+    env.ucmd
+        .env("POSIXLY_CORRECT", "1")
+        .succeeds()
+        .stdout_is(env.symdir.clone() + "\n");
+}
+
+#[test]
+fn test_symlinked_default_posix_l() {
+    let mut env = symlinked_env();
+    env.ucmd
+        .env("POSIXLY_CORRECT", "1")
+        .arg("-L")
+        .succeeds()
+        .stdout_is(env.symdir + "\n");
+}
+
+#[test]
+fn test_symlinked_default_posix_p() {
+    let mut env = symlinked_env();
+    env.ucmd
+        .env("POSIXLY_CORRECT", "1")
+        .arg("-P")
+        .succeeds()
+        .stdout_is(env.symdir + "\n");
+}
+
 #[cfg(not(windows))]
 pub mod untrustworthy_pwd_var {
     use std::path::Path;