diff --git a/Provide-native-lib-for-libsignal.md b/Provide-native-lib-for-libsignal.md
index 4428477..e7ec814 100644
--- a/Provide-native-lib-for-libsignal.md
+++ b/Provide-native-lib-for-libsignal.md
@@ -12,7 +12,7 @@ Builds for some additional platforms are available in
   * **Linux:**
     * amd64/x86_64 _(variant 1 requires `glibc` v2.28 or newer, variant 2 requires `musl libc`)_
     * arm64/aarch64, armv7, i386 _(these require `glibc` v2.29 or newer)_
-  * **macOS:** amd64/x86_64, arm64/aarch64 _(these require Darwin v14)_
+  * **macOS:** amd64/x86_64, arm64/aarch64 _(these require Darwin v14 or newer)_
   * **Windows:** amd64/x86_64
 * https://gitlab.com/packaging/libsignal-client/
   * **Linux:** amd64/x86_64, arm64/aarch64, armv7 _(these require `glibc` v2.28 or newer)_
@@ -25,7 +25,9 @@ Builds for some additional platforms are available in
     * `libsignal_jni_soNNNN_ubuntu1804_{amd64,i686,arm64,armv7,mips64,mips64el,mips,mipsel,s390x,sparc64}.gz` _(these require `glibc` v2.25 or newer)_
     * `libsignal_jni_soNNNN_ubuntu1604_{ppc64,ppc64el}.gz` _(these require `glibc` v2.22 or newer)_
     * `libsignal_jni_soNNNN_ubuntu1604_{amd64,i686,arm64,armv7,mips64,mips64el,mips,mipsel,powerpc,s390x,sparc64}.gz` _(these require `glibc` v2.18 or newer)_
-    * `libsignal_jni_soNNNN_ubuntu1304_{amd64,i686}.gz` _(these require `glibc` v2.16 or newer)_
+  * Artefacts cross-built against header files and libraries of the unsupported older Ubuntu release 13.10:
+    * `libsignal_jni_soNNNN_ubuntu1310_arm64.gz` _(requires `glibc` v2.17 or newer)_
+    * `libsignal_jni_soNNNN_ubuntu1310_{amd64,armv7,i686}.gz` _(these require `glibc` v2.16 or newer)_
 
 ## Manual build