diff --git a/.github/workflows/release-binaries.yml b/.github/workflows/release-binaries.yml
index f221cee..e9c9655 100644
--- a/.github/workflows/release-binaries.yml
+++ b/.github/workflows/release-binaries.yml
@@ -14,7 +14,7 @@ on:
         description: "The release tag the binaries are built from and attached to (e.g. 0.1.3)"
         required: true
       platform:
-        description: "The openkal-platform whose hosted arrangement builds the tools: the one whose version group holds the implementations the tag pins (0.1.5: 0.19.0; 0.1.6: 0.19.1; 0.1.7: 0.19.2; 0.1.8: 0.20.0)"
+        description: "The openkal-platform whose hosted arrangement builds the tools: the one whose version group holds the implementations the tag pins (0.1.5: 0.19.0; 0.1.6: 0.19.1; 0.1.7: 0.19.2; 0.1.8: 0.20.0; 0.1.9: 0.20.1)"
         required: true
         default: "0.19.0"
       mcpp_ref:
@@ -31,7 +31,7 @@ env:
   # The platform whose hosted arrangement the programs are built over, named by
   # the dispatch beside the tag: a tag's tools pin exact implementations, and the
   # platform is the one whose version group holds them (0.1.4: 0.18.0; 0.1.5:
-  # 0.19.0, openkal-linux 0.19.0; 0.1.6: 0.19.1; 0.1.7: 0.19.2; 0.1.8: 0.20.0).
+  # 0.19.0, openkal-linux 0.19.0; 0.1.6: 0.19.1; 0.1.7: 0.19.2; 0.1.8: 0.20.0; 0.1.9: 0.20.1).
   PLATFORM_VERSION: ${{ github.event.inputs.platform }}
   XLINGS_VERSION: v2026.10.26.1
   XLINGS_NON_INTERACTIVE: '1'
diff --git a/bind/mcpp.toml b/bind/mcpp.toml
index bb633cd..1ed97a2 100644
--- a/bind/mcpp.toml
+++ b/bind/mcpp.toml
@@ -1,7 +1,7 @@
 [package]
 namespace   = "mcpplibs"
 name        = "openkal-bind"
-version     = "0.1.8"
+version     = "0.1.9"
 # `mcpp::xpkg_request', `mcpp::decision' (protocol 15).
 mcpp        = ">=2026.10.1.3"
 description = "A build plugin: a library published as an ok image (.okso) and a C header is called from a program of any system, through a binding generated from the header and libokrun."
diff --git a/docs/bind.md b/docs/bind.md
index 5c79fb8..649c2ec 100644
--- a/docs/bind.md
+++ b/docs/bind.md
@@ -24,10 +24,10 @@ sources      = []
 include_dirs = ["include"]
 
 [target.'cfg(not(os = "openkal"))'.dependencies]
-openkal-run = "0.1.8"
+openkal-run = "0.1.9"
 
 [build-dependencies]
-openkal-bind = "0.1.8"
+openkal-bind = "0.1.9"
 ```
 
 ```cpp
@@ -104,3 +104,4 @@ llvm toolchain's clang converts the call.
 | 0.1.6 | No change of its own; released with the archive, whose runner releases the file it ran once the image is loaded, and whose loader digests on the processor's SHA-256 instructions and writes each segment once. |
 | 0.1.7 | No change of its own; released with the archive, whose loader also digests on ARMv8's SHA-256 instructions on Linux where the processor states them. |
 | 0.1.8 | No change of its own; released with the archive, built against openkal 0.19.0 (the runner binds `kal_task_cores` and `kal_task_set_priority`), whose okb carries chunk digests the runner verifies on several contexts at once. |
+| 0.1.9 | No change of its own; released with the archive, whose runner on macOS is built over openkal-macos 0.17.1 (`kal_task_current` without a system call). |
diff --git a/examples/host/mcpp.toml b/examples/host/mcpp.toml
index 1224335..1e15236 100644
--- a/examples/host/mcpp.toml
+++ b/examples/host/mcpp.toml
@@ -4,7 +4,7 @@
 # system of each architecture with the images built once.
 [package]
 name    = "okrun-host"
-version = "0.1.8"
+version = "0.1.9"
 
 [dependencies]
 openkal-run = { path = "../../run" }
diff --git a/ld/mcpp.toml b/ld/mcpp.toml
index 8fd87ca..e2e5c93 100644
--- a/ld/mcpp.toml
+++ b/ld/mcpp.toml
@@ -1,7 +1,7 @@
 [package]
 namespace   = "mcpplibs"
 name        = "openkal-ld"
-version     = "0.1.8"
+version     = "0.1.9"
 description = "libokld: the ok format (openkal image format) --- its definition, a reader of bytes, a checker, a signer, and a loader. Freestanding: no C library, no exceptions."
 license     = "Apache-2.0"
 authors     = ["mcpplibs"]
diff --git a/run/mcpp.toml b/run/mcpp.toml
index 4aff245..0d1f6dc 100644
--- a/run/mcpp.toml
+++ b/run/mcpp.toml
@@ -1,7 +1,7 @@
 [package]
 namespace   = "mcpplibs"
 name        = "openkal-run"
-version     = "0.1.8"
+version     = "0.1.9"
 description = "libokrun: the runner's core --- an ok image's names bound to this process's one openkal implementation, in the image's calling convention, and its entry entered."
 license     = "Apache-2.0"
 authors     = ["mcpplibs"]
@@ -18,7 +18,7 @@ openkal-ld = { path = "../ld" }
 openkal-linux = "0.20.0"
 
 [target.macos.dependencies]
-openkal-macos = "0.17.0"
+openkal-macos = "0.17.1"
 
 [target.windows.dependencies]
 openkal-windows = "0.15.0"
diff --git a/tools/mcpp.toml b/tools/mcpp.toml
index 7008926..305da60 100644
--- a/tools/mcpp.toml
+++ b/tools/mcpp.toml
@@ -1,7 +1,7 @@
 [package]
 namespace   = "mcpplibs"
 name        = "openkal-tools"
-version     = "0.1.8"
+version     = "0.1.9"
 description = "okrun, which runs an ok image on this system, and okld, the format's tool on a build machine (check, note, sign, inspect)."
 license     = "Apache-2.0"
 authors     = ["mcpplibs"]