diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9b0d5277..c6b8f25f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,10 @@
 
 ### Added
 
+- **openkal-musl 0.23.0、openkal-llvm-runtime 0.16.10。** openkal-musl 的文件 `mmap`、`munmap`、`msync` 经
+  `openkal.map`(偏移按 `KAL_MAP_ALIGNMENT` 向下对齐,区域止于文件末尾);openkal-llvm-runtime 随之移动。测试成员
+  `openkal-musl` 观察映射的文件,`openkal` 移到 0.16.10。GLOBAL 为 GitHub 标签归档,CN 为 GitCode `mcpp-res` 镜像,
+  sha256 两处一致。
 - **openkal-ld、openkal-run、openkal-tools、openkal-bind 0.1.5。** okrun 以 `openkal.map`(私有、可写)映射它运行的映像
   或 okb,而不是整体读入内存,映像结束时释放;映像绑定 `openkal.map` 的三个函数。四个成员钉 openkal 0.18.0、
   openkal-linux 0.19.0、openkal-macos 0.16.0、openkal-windows 0.14.0。测试成员 `openkal-tools`、`openkal-bind`
diff --git a/pkgs/o/openkal-llvm-runtime.lua b/pkgs/o/openkal-llvm-runtime.lua
index 521e93c5..ac535da4 100644
--- a/pkgs/o/openkal-llvm-runtime.lua
+++ b/pkgs/o/openkal-llvm-runtime.lua
@@ -75,6 +75,13 @@ package = {
 
     xpm = {
         linux = {
+            ["0.16.10"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.16.10.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/openkal-llvm-runtime/releases/download/0.16.10/openkal-llvm-runtime-0.16.10.tar.gz",
+                },
+                sha256 = "6f23060d3956c19986ee18a72034017b3f918dbe8c5fe4011b8fad8a3a7b00ba",
+            },
             ["0.16.9"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.16.9.tar.gz",
@@ -371,6 +378,13 @@ package = {
             },
         },
         macosx = {
+            ["0.16.10"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.16.10.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/openkal-llvm-runtime/releases/download/0.16.10/openkal-llvm-runtime-0.16.10.tar.gz",
+                },
+                sha256 = "6f23060d3956c19986ee18a72034017b3f918dbe8c5fe4011b8fad8a3a7b00ba",
+            },
             ["0.16.9"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.16.9.tar.gz",
@@ -667,6 +681,13 @@ package = {
             },
         },
         windows = {
+            ["0.16.10"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.16.10.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/openkal-llvm-runtime/releases/download/0.16.10/openkal-llvm-runtime-0.16.10.tar.gz",
+                },
+                sha256 = "6f23060d3956c19986ee18a72034017b3f918dbe8c5fe4011b8fad8a3a7b00ba",
+            },
             ["0.16.9"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/openkal-llvm-runtime/archive/refs/tags/0.16.9.tar.gz",
diff --git a/pkgs/o/openkal-musl.lua b/pkgs/o/openkal-musl.lua
index e0241d15..86a9ea62 100644
--- a/pkgs/o/openkal-musl.lua
+++ b/pkgs/o/openkal-musl.lua
@@ -75,6 +75,13 @@ package = {
 
     xpm = {
         linux = {
+            ["0.23.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/openkal-musl/archive/refs/tags/0.23.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/openkal-musl/releases/download/0.23.0/openkal-musl-0.23.0.tar.gz",
+                },
+                sha256 = "d2238aef42b4155d23aa87431d3c344fafcba78446473499bb9b1472f9d31a87",
+            },
             ["0.22.9"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/openkal-musl/archive/refs/tags/0.22.9.tar.gz",
@@ -385,6 +392,13 @@ package = {
             },
         },
         macosx = {
+            ["0.23.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/openkal-musl/archive/refs/tags/0.23.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/openkal-musl/releases/download/0.23.0/openkal-musl-0.23.0.tar.gz",
+                },
+                sha256 = "d2238aef42b4155d23aa87431d3c344fafcba78446473499bb9b1472f9d31a87",
+            },
             ["0.22.9"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/openkal-musl/archive/refs/tags/0.22.9.tar.gz",
@@ -695,6 +709,13 @@ package = {
             },
         },
         windows = {
+            ["0.23.0"] = {
+                url    = {
+                    GLOBAL = "https://github.com/mcpplibs/openkal-musl/archive/refs/tags/0.23.0.tar.gz",
+                    CN     = "https://gitcode.com/mcpp-res/openkal-musl/releases/download/0.23.0/openkal-musl-0.23.0.tar.gz",
+                },
+                sha256 = "d2238aef42b4155d23aa87431d3c344fafcba78446473499bb9b1472f9d31a87",
+            },
             ["0.22.9"] = {
                 url    = {
                     GLOBAL = "https://github.com/mcpplibs/openkal-musl/archive/refs/tags/0.22.9.tar.gz",
diff --git a/tests/examples/openkal-musl/mcpp.toml b/tests/examples/openkal-musl/mcpp.toml
index 4789e50e..8cccf1f7 100644
--- a/tests/examples/openkal-musl/mcpp.toml
+++ b/tests/examples/openkal-musl/mcpp.toml
@@ -8,7 +8,7 @@ name    = "openkal-musl-tests"
 version = "0.1.0"
 
 [target.'cfg(os = "linux")'.dependencies.mcpplibs]
-openkal-musl = "0.22.9"
+openkal-musl = "0.23.0"
 
 [target.'cfg(os = "linux")'.build]
 cxxflags = ["-DHAVE_OPENKAL_MUSL=1"]
diff --git a/tests/examples/openkal-musl/tests/reports.cpp b/tests/examples/openkal-musl/tests/reports.cpp
index d953b0ea..af793ebe 100644
--- a/tests/examples/openkal-musl/tests/reports.cpp
+++ b/tests/examples/openkal-musl/tests/reports.cpp
@@ -1,6 +1,6 @@
 /* The reporters' programs, above openkal-musl. Elsewhere this compiles to a
  * main() that reports nothing, because the member names the port for Linux
- * alone. */
+ * alone. And (0.23) a file mapped with mmap. */
 #ifndef HAVE_OPENKAL_MUSL
 int main(void) { return 0; }
 #else
@@ -10,6 +10,7 @@ int main(void) { return 0; }
 #include <fcntl.h>
 #include <pthread.h>
 #include <stdio.h>
+#include <sys/mman.h>
 #include <sys/stat.h>
 #include <unistd.h>
 
@@ -45,6 +46,18 @@ int main(void) {
     static char region[1 << 20];
     pthread_attr_setstack(&attr, region, sizeof region);
     check(pthread_create(&t, &attr, body, &depth) == EINVAL, "a stack the caller supplies is refused");
+    /* 0.23: mmap of a file is openkal.map's; the bytes after the end in the last page are zero. */
+    int fd = open("okm.map", O_RDWR | O_CREAT | O_TRUNC, 0644);
+    if (fd >= 0 && write(fd, "mapped", 6) == 6) {
+        const char* p = (const char*)mmap(NULL, 6, PROT_READ, MAP_PRIVATE, fd, 0);
+        check(p != MAP_FAILED, "a file is mapped");
+        if (p != MAP_FAILED) {
+            check(p[0] == 'm' && p[5] == 'd' && p[6] == 0, "the region holds the file's bytes and zero after its end");
+            check(munmap((void*)p, 6) == 0, "the region is released");
+        }
+    }
+    if (fd >= 0) close(fd);
+    unlink("okm.map");
     return failures != 0;
 }
 #endif
diff --git a/tests/examples/openkal/mcpp.toml b/tests/examples/openkal/mcpp.toml
index f7ceadd3..bd007b1c 100644
--- a/tests/examples/openkal/mcpp.toml
+++ b/tests/examples/openkal/mcpp.toml
@@ -30,7 +30,7 @@ openkal-macos = "0.16.0"
 openkal-windows = "0.14.0"
 
 [target.'cfg(all(os = "linux", env = "musl"))'.dependencies.mcpplibs]
-openkal-llvm-runtime = "0.16.9"
+openkal-llvm-runtime = "0.16.10"
 
 [target.'cfg(arch = "wasm32")'.dependencies.mcpplibs]
 openkal-emscripten = "0.6.0"