From 362d8751d3b27cd11a1ee95addd6c5c3a21446ae Mon Sep 17 00:00:00 2001
From: Max Pi <max@pi.network>
Date: Tue, 22 Sep 2026 15:41:59 -0700
Subject: [PATCH 01/10] Restore Apple Silicon paclet builds and Git version
 metadata

---
 DevUtils/BuildLibPostTagSystem.m |  2 +-
 DevUtils/GitLink.m               | 47 +++++++++++++++++++++++++++++---
 DevUtils/PackPostTagSystem.m     | 24 +++++++++-------
 PacletInfo.m                     |  2 +-
 Tests/buildData.wlt              |  6 ++--
 5 files changed, 61 insertions(+), 20 deletions(-)

diff --git a/DevUtils/BuildLibPostTagSystem.m b/DevUtils/BuildLibPostTagSystem.m
index 0d21751..7c8576c 100644
--- a/DevUtils/BuildLibPostTagSystem.m
+++ b/DevUtils/BuildLibPostTagSystem.m
@@ -170,7 +170,7 @@
   "Windows",
     {"/std:c++17", "/EHsc"},
   "MacOSX",
-    Join[{"-std=c++17"}, $warningsFlags, {"-mmacosx-version-min=10.14"}], (* for full support for optional *)
+    Join[{"-std=c++17"}, $warningsFlags, {"-mmacosx-version-min=11.0"}], (* for full support for optional *)
   "Unix",
     Join[{"-std=c++17"}, $warningsFlags]
 ];
diff --git a/DevUtils/GitLink.m b/DevUtils/GitLink.m
index a420f6e..d0a6ab3 100644
--- a/DevUtils/GitLink.m
+++ b/DevUtils/GitLink.m
@@ -5,10 +5,35 @@
 PackageImport["PacletManager`"] (* for PacletFind, PacletInstall in versions prior to 12.1 *)
 
 PackageExport["$PostTagSystemGitLinkAvailableQ"]
+PackageExport["$PostTagSystemGitAvailableQ"]
 
 (* unfortunately, owing to a bug in GitLink, GitLink *needs* to be on the $ContextPath or GitRepo objects
 end up in the wrong context, since they are generated in a loopback link unqualified *)
-$PostTagSystemGitLinkAvailableQ := !FailureQ[Quiet @ Check[Needs["GitLink`"], $Failed]];
+(* Needs can succeed after a previous library initialization failure, so also check the library itself. *)
+$PostTagSystemGitLinkAvailableQ := AssociationQ[Quiet @ Check[
+  Needs["GitLink`"];
+  GitLink`$GitLibraryInformation,
+  $Failed
+]];
+
+$PostTagSystemGitAvailableQ := $PostTagSystemGitLinkAvailableQ ||
+  TrueQ[Quiet @ Check[RunProcess[{"git", "--version"}, "ExitCode"] === 0, False]];
+
+runGit::failed = "Git command `` failed in ``: ``";
+
+(* An argument list avoids shell quoting and supports repository paths containing spaces. *)
+runGit[repoDir_String, args__String] := Module[{result},
+  result = Quiet @ Check[RunProcess[Join[{"git", "-C", repoDir}, {args}]], $Failed];
+  If[!AssociationQ[result],
+    Message[runGit::failed, {args}, repoDir, "Could not run git; check PATH."];
+    Return[$Failed];
+  ];
+  If[result["ExitCode"] =!= 0,
+    Message[runGit::failed, {args}, repoDir, StringTrim[result["StandardError"]]];
+    Return[$Failed];
+  ];
+  StringTrim[result["StandardOutput"]]
+];
 
 PackageExport["PostTagSystemGitSHAWithDirtyStar"]
 
@@ -27,15 +52,21 @@
   If[cleanQ, sha, sha <> "*"]
 ];
 
-PostTagSystemGitSHAWithDirtyStar[_] /; FalseQ[$PostTagSystemGitLinkAvailableQ] := Missing["NotAvailable"];
+PostTagSystemGitSHAWithDirtyStar[repoDir_] /; FalseQ[$PostTagSystemGitLinkAvailableQ] := ModuleScope[
+  sha = runGit[repoDir, "rev-parse", "--verify", "HEAD"];
+  If[!StringQ[sha], Return[$Failed]];
+  status = runGit[repoDir, "status", "--porcelain=v1", "--untracked-files=normal", "--ignore-submodules=all"];
+  If[!StringQ[status], Return[$Failed]];
+  If[status === "", sha, sha <> "*"]
+];
 
 PackageExport["PostTagSystemInstallGitLink"]
 
 SetUsage @ "
-PostTagSystemInstallGitLink[] will attempt to install GitLink on the current system (if necessary).
+PostTagSystemInstallGitLink[] will attempt to install GitLink if neither GitLink nor command-line git is available.
 ";
 
-PostTagSystemInstallGitLink[] := If[PacletFind["GitLink", "Internal" -> All] === {},
+PostTagSystemInstallGitLink[] := If[!$PostTagSystemGitAvailableQ && PacletFind["GitLink", "Internal" -> All] === {},
   PacletInstall["https://www.wolframcloud.com/obj/maxp1/GitLink-2019.11.26.01.paclet"];
 ];
 
@@ -49,6 +80,14 @@
 
 PostTagSystemCalculateMinorVersionNumber[repoDir_, masterBranch_] := ModuleScope[
   versionInformation = Import[FileNameJoin[{repoDir, "scripts", "version.wl"}]];
+  If[!$PostTagSystemGitLinkAvailableQ,
+    If[TrueQ[$internalBuildQ] && runGit[repoDir, "fetch", "origin"] === $Failed, Return[$Failed]];
+    mergeBase = runGit[repoDir, "merge-base", "HEAD", masterBranch];
+    If[!StringQ[mergeBase], Return[$Failed]];
+    count = runGit[repoDir, "rev-list", "--count", versionInformation["Checkpoint"] <> ".." <> mergeBase];
+    If[!StringQ[count] || !StringMatchQ[count, DigitCharacter ..], Return[$Failed]];
+    Return[Max[0, FromDigits[count] - 1]];
+  ];
   gitRepo = GitLink`GitOpen[repoDir];
   If[$internalBuildQ, GitLink`GitFetch[gitRepo, "origin"]];
   minorVersionNumber = Max[0, Length[GitLink`GitRange[
diff --git a/DevUtils/PackPostTagSystem.m b/DevUtils/PackPostTagSystem.m
index de0eb1b..2a1b2a3 100644
--- a/DevUtils/PackPostTagSystem.m
+++ b/DevUtils/PackPostTagSystem.m
@@ -18,8 +18,9 @@
 PackPostTagSystem::packfailed = "Could not pack paclet from `` into ``.";
 PackPostTagSystem::nopacletinfo = "Paclet info file was not present at ``.";
 PackPostTagSystem::nobuildinfo = "Build info file was not present at ``.";
-PackPostTagSystem::nogitlink = "GitLink is not installed, so the built paclet version cannot be correctly \
-calculated. Proceed with caution, and consider installing GitLink by running InstallGitLink[].";
+PackPostTagSystem::nogitlink = "Neither GitLink nor command-line git is available. Install git or a compatible \
+GitLink to build a paclet with version information.";
+PackPostTagSystem::gitmetadata = "Could not determine the Git version information for ``.";
 
 SetUsage @ "
 PackPostTagSystem[] creates a PacletObject containing the local source and last built library.
@@ -45,14 +46,16 @@
   SetAutomatic[sourceDirectory, repositoryDirectory];
   EnsureDirectory[outputDirectory];
 
-  If[$PostTagSystemGitLinkAvailableQ,
+  If[$PostTagSystemGitAvailableQ,
     minorVersionNumber = PostTagSystemCalculateMinorVersionNumber[repositoryDirectory, masterBranch];
-    pacletInfoFile = createUpdatedPacletInfo[FileNameJoin[{sourceDirectory, "PacletInfo.m"}], minorVersionNumber];
     gitSHA = PostTagSystemGitSHAWithDirtyStar[repositoryDirectory];
+    If[!IntegerQ[minorVersionNumber] || minorVersionNumber < 0 ||
+        !StringQ[gitSHA] || !StringMatchQ[gitSHA, Repeated[HexadecimalCharacter, 40] ~~ Repeated["*", {0, 1}]],
+      ReturnFailed["gitmetadata", repositoryDirectory];
+    ];
+    pacletInfoFile = createUpdatedPacletInfo[FileNameJoin[{sourceDirectory, "PacletInfo.m"}], minorVersionNumber];
   ,
-    Message[PackPostTagSystem::nogitlink];
-    pacletInfoFile = FileNameJoin[{sourceDirectory, "PacletInfo.m"}];
-    gitSHA = Missing["GitLinkNotAvailable"];
+    ReturnFailed["nogitlink"];
   ];
 
   buildInfo = <|"GitSHA" -> gitSHA, "BuildTime" -> Round[DateList[TimeZone -> "UTC"]]|>;
@@ -87,10 +90,11 @@
 ];
 
 createUpdatedPacletInfo[pacletInfoFilename_, minorVersionNumber_] := ModuleScope[
-  pacletInfo = Association @@ Import[pacletInfoFilename];
-  versionString = pacletInfo[Version] <> "." <> ToString[minorVersionNumber];
+  (* Legacy PacletInfo symbols may be read in a different context from this package. *)
+  pacletInfo = KeyMap[If[StringQ[#], #, SymbolName[#]] &, Association @@ Import[pacletInfoFilename]];
+  versionString = pacletInfo["Version"] <> "." <> ToString[minorVersionNumber];
   tempFilename = FileNameJoin[{$PostTagSystemDevUtilsTemporaryDirectory, "PacletInfo.m"}];
-  AppendTo[pacletInfo, Version -> versionString];
+  AppendTo[pacletInfo, "Version" -> versionString];
   Block[{$ContextPath = {"System`", "PacletManager`"}},
     Export[tempFilename, PacletManager`Paclet @@ Normal[pacletInfo]]
   ];
diff --git a/PacletInfo.m b/PacletInfo.m
index 16d9fba..4b36b5a 100644
--- a/PacletInfo.m
+++ b/PacletInfo.m
@@ -7,7 +7,7 @@
   Description -> "PostTagSystem implements the tag system {3, {{0, _, _} -> {0, 0}, {1, _, _} -> {1, 1, 0, 1}}}.",
   Creator -> "Max Piskunov",
   URL -> "https://github.com/maxitg/PostTagSystem",
-  SystemID -> {"MacOSX-x86-64", "Linux-x86-64", "Windows-x86-64"},
+  SystemID -> {"MacOSX-x86-64", "Linux-x86-64", "Windows-x86-64", "MacOSX-ARM64"},
   Extensions -> {
     {"Kernel", Context -> "PostTagSystem`"},
     {"LibraryLink"}
diff --git a/Tests/buildData.wlt b/Tests/buildData.wlt
index f12434f..d2c0c1f 100644
--- a/Tests/buildData.wlt
+++ b/Tests/buildData.wlt
@@ -22,8 +22,7 @@
       ],
 
       VerificationTest[
-        $PostTagSystemBuildTime["TimeZone"],
-        "UTC"
+        TimeZoneOffset[$PostTagSystemBuildTime["TimeZone"]] == 0
       ],
 
       (* could not be built in the future *)
@@ -57,8 +56,7 @@
       ],
 
       VerificationTest[
-        $PostTagSystemLibraryBuildTime["TimeZone"],
-        "UTC"
+        TimeZoneOffset[$PostTagSystemLibraryBuildTime["TimeZone"]] == 0
       ],
 
       (* could not be built in the future *)

From b82db8b231bb816dc3d38b73628dbf7a9a57e036 Mon Sep 17 00:00:00 2001
From: Max Pi <max@pi.network>
Date: Tue, 22 Sep 2026 15:45:31 -0700
Subject: [PATCH 02/10] Refresh CircleCI checkout tools and macOS builds

---
 .circleci/config.yml             | 21 +++++++++-------
 scripts/buildLibraryResources.sh | 41 +++++++++++++++++++-------------
 2 files changed, 36 insertions(+), 26 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6363daf..8d5a2ea 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -57,6 +57,10 @@ jobs:
           password: $DOCKERHUB_PASSWORD
 
     steps:
+      - run:
+          name: Install checkout tools
+          command: apk add --no-cache git openssh-client
+
       - checkout
 
       - run:
@@ -104,6 +108,10 @@ jobs:
           password: $DOCKERHUB_PASSWORD
 
     steps:
+      - run:
+          name: Install checkout tools
+          command: apk add --no-cache git openssh-client
+
       - checkout
 
       - run:
@@ -129,21 +137,15 @@ jobs:
 
   macos-build:
     macos:
-      xcode: 12.2.0
+      xcode: 27.0.0
+    resource_class: m4pro.medium
 
     steps:
       - checkout
 
       - run:
           name: Install CMake
-          command: |
-            cmakeURL="https://github.com/Kitware/CMake/releases/download/v3.18.6/cmake-3.18.6-Darwin-x86_64.tar.gz"
-            curl -L --output cmake.tar.gz $cmakeURL
-            tar xf cmake.tar.gz
-            cmakeDir=$(ls | grep cmake-*)
-            mkdir -p /usr/local/bin /usr/local/share
-            cp -r $cmakeDir/CMake.app/Contents/bin/* /usr/local/bin/
-            cp -r $cmakeDir/CMake.app/Contents/share/* /usr/local/share/
+          command: command -v cmake >/dev/null || brew install cmake
 
       - run:
           name: Build
@@ -153,6 +155,7 @@ jobs:
           root: LibraryResources
           paths:
             - MacOSX-x86-64
+            - MacOSX-ARM64
 
       - store_artifacts:
           path: ./LibraryResources/
diff --git a/scripts/buildLibraryResources.sh b/scripts/buildLibraryResources.sh
index 96810ce..2741e7a 100755
--- a/scripts/buildLibraryResources.sh
+++ b/scripts/buildLibraryResources.sh
@@ -37,30 +37,33 @@ echo "libPostTagSystem sources hash: $shortSHA"
 
 # Build the library
 
+cmakeOptions=()
+if [ "$(uname -s)" = "Darwin" ]; then
+  cmakeOptions+=("-DCMAKE_OSX_ARCHITECTURES=arm64;x86_64" "-DCMAKE_OSX_DEPLOYMENT_TARGET=11.0")
+fi
+
 mkdir -p build
 cd build
-cmake .. -DPOST_TAG_SYSTEM_ENABLE_ALLWARNINGS=ON -DBUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=Release
+cmake .. -DPOST_TAG_SYSTEM_ENABLE_ALLWARNINGS=ON -DBUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=Release "${cmakeOptions[@]}"
 cmake --build . --config Release # Needed for multi-config generators
 cd ..
 
 # Set the platform-specific names
 
-if [ "$(uname -sm)" = "Darwin x86_64" ]; then
-  libraryResourcesDirName=MacOSX-x86-64
+if [ "$(uname -s)" = "Darwin" ]; then
+  libraryResourcesDirNames=(MacOSX-x86-64 MacOSX-ARM64)
   libraryExtension=dylib
 elif [ "$(uname -sm)" = "Linux x86_64" ]; then
-  libraryResourcesDirName=Linux-x86-64
+  libraryResourcesDirNames=(Linux-x86-64)
   libraryExtension=so
 elif [[ "$OSTYPE" == "msys" && "$(uname -m)" == "x86_64" ]]; then # Windows
-  libraryResourcesDirName=Windows-x86-64
+  libraryResourcesDirNames=(Windows-x86-64)
   libraryExtension=dll
 else
   echo "Operating system unsupported"
   exit 1
 fi
 
-libraryDir=LibraryResources/$libraryResourcesDirName
-echo "LibraryResources directory: $postTagSystemRoot/$libraryDir"
 echo "Library extension: $libraryExtension"
 
 # Find the compiled library
@@ -79,19 +82,23 @@ echo "Found compiled library at $postTagSystemRoot/$compiledLibrary"
 
 # Copy the library to LibraryResources
 
-mkdir -p $libraryDir
-libraryDestination=$libraryDir/libPostTagSystem-$shortSHA.$libraryExtension
-echo "Copying the library to $postTagSystemRoot/$libraryDestination"
-cp $compiledLibrary "$libraryDestination"
-
-metadataDestination=$libraryDir/libPostTagSystemBuildInfo.json
-echo "Writing metadata to $postTagSystemRoot/$metadataDestination"
-echo "\
+for libraryResourcesDirName in "${libraryResourcesDirNames[@]}"; do
+  libraryDir=LibraryResources/$libraryResourcesDirName
+  echo "LibraryResources directory: $postTagSystemRoot/$libraryDir"
+  mkdir -p "$libraryDir"
+  libraryDestination=$libraryDir/libPostTagSystem-$shortSHA.$libraryExtension
+  echo "Copying the library to $postTagSystemRoot/$libraryDestination"
+  cp "$compiledLibrary" "$libraryDestination"
+
+  metadataDestination=$libraryDir/libPostTagSystemBuildInfo.json
+  echo "Writing metadata to $postTagSystemRoot/$metadataDestination"
+  echo "\
 {
   \"LibraryFileName\": \"libPostTagSystem-$shortSHA.$libraryExtension\",
   \"LibraryBuildTime\": $(date -u "+[%-Y, %-m, %-d, %-H, %-M, %-S]"),
   \"LibrarySourceHash\": \"$shortSHA\"
-}" >$metadataDestination
+}" >"$metadataDestination"
 
-cat $metadataDestination
+  cat "$metadataDestination"
+done
 echo "Build done"

From f6e29068f19fc67c41987d7f3ebc8e7ee5f04394 Mon Sep 17 00:00:00 2001
From: Max Pi <max@pi.network>
Date: Tue, 22 Sep 2026 15:53:18 -0700
Subject: [PATCH 03/10] Pin CI dependencies and restore the Windows Boost
 download

---
 .circleci/config.yml | 16 ++++++++--------
 CMakeLists.txt       |  2 +-
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 8d5a2ea..6e0847a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -69,7 +69,7 @@ jobs:
             apk add --no-cache \
               bash boost-dev boost-static git g++ make cmake \
               clang py-pip shellcheck shfmt grep npm
-            pip install cpplint
+            pip install cpplint==1.5.5
             npm install -g markdownlint-cli
 
       - run:
@@ -163,7 +163,7 @@ jobs:
   windows-build:
     executor:
       name: win/default
-      shell: bash.exe
+      shell: bash.exe -eo pipefail
 
     steps:
       - checkout
@@ -172,21 +172,21 @@ jobs:
           name: Install CMake
           command: |
             cmakeURL="https://github.com/Kitware/CMake/releases/download/v3.18.6/cmake-3.18.6-win64-x64.zip"
-            curl -L --output cmake.zip $cmakeURL
+            curl --fail --location --retry 3 --output cmake.zip "$cmakeURL"
             unzip -q cmake.zip
-            cmakeDir=$(dir -1 | findstr -i cmake-*)
+            cmakeDir=cmake-3.18.6-win64-x64
             echo "export PATH=\"$(pwd)/$cmakeDir/bin:$PATH\"" >> $BASH_ENV
 
       - run:
           name: Install Boost headers and build libraries
           command: |
-            boostURL="https://dl.bintray.com/boostorg/release/1.72.0/source/boost_1_72_0.zip"
-            curl -L --output boost.zip $boostURL
+            boostURL="https://archives.boost.io/release/1.72.0/source/boost_1_72_0.zip"
+            curl --fail --location --retry 3 --output boost.zip "$boostURL"
             unzip -q boost.zip
-            boostDir=$(dir -1 | findstr -i boost_*)
+            boostDir=boost_1_72_0
             echo "export BOOST_ROOT=\"$(pwd)/$boostDir\"" >> $BASH_ENV
             grep BOOST_ $BASH_ENV
-            cd $boostDir
+            cd "$boostDir"
             ./bootstrap.bat
             ./b2 --with-program_options
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0091000..02c143e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -119,7 +119,7 @@ if(POST_TAG_SYSTEM_BUILD_TESTING)
   FetchContent_Declare(
     googletest
     GIT_REPOSITORY https://github.com/google/googletest.git
-    GIT_TAG master
+    GIT_TAG f8d7d77c06936315286eb55f8de22cd23c188571 # GoogleTest v1.14.0
   )
 
   set(CMAKE_POLICY_DEFAULT_CMP0048 NEW) # google test raises warning about it

From a0850c76056ab3c88b1cf6efa3c3f3bab8855858 Mon Sep 17 00:00:00 2001
From: Max Pi <max@pi.network>
Date: Tue, 22 Sep 2026 15:58:00 -0700
Subject: [PATCH 04/10] Use the official Wolfram Engine image for paclet CI

---
 .circleci/config.yml | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6e0847a..2fcd818 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -6,15 +6,26 @@ orbs:
 jobs:
   wolfram-language-paclet-test:
     docker:
-      - image: maxitg/set-replace-wl-ci:12.1.1
-        auth:
-          username: maxitg
-          password: $DOCKERHUB_PASSWORD
+      - image: wolframresearch/wolframengine:12.1.1
+        user: root
     parallelism: 4
 
     steps:
+      - run:
+          name: Install Required Tools
+          command: |
+            apt-get update
+            apt-get install --no-install-recommends -y g++ git openssh-client
+
       - checkout
 
+      - run:
+          name: Activate Wolfram Engine
+          command: |
+            : "${WOLFRAM_PASSWORD:?Set WOLFRAM_PASSWORD in CircleCI project settings}"
+            wolframscript -authenticate maxitg@icloud.com "${WOLFRAM_PASSWORD}"
+            wolframscript -activate
+
       - run:
           name: Build
           command: ./build.wls
@@ -42,6 +53,7 @@ jobs:
 
       - run:
           name: Test
+          no_output_timeout: 20m
           command: |
             testsToRun=$(circleci tests glob "Tests/*.wlt" \
               | circleci tests split --total=4 --split-by=filesize \

From 3a63ba7b7b85e7aa21ccdf79265f89236bbad4e8 Mon Sep 17 00:00:00 2001
From: Max Pi <max@pi.network>
Date: Tue, 22 Sep 2026 16:02:24 -0700
Subject: [PATCH 05/10] Use configured Wolfram ID for CI activation

---
 .circleci/config.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2fcd818..24cfc17 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -22,8 +22,9 @@ jobs:
       - run:
           name: Activate Wolfram Engine
           command: |
+            : "${WOLFRAM_ID:?Set WOLFRAM_ID in CircleCI project settings}"
             : "${WOLFRAM_PASSWORD:?Set WOLFRAM_PASSWORD in CircleCI project settings}"
-            wolframscript -authenticate maxitg@icloud.com "${WOLFRAM_PASSWORD}"
+            wolframscript -authenticate "${WOLFRAM_ID}" "${WOLFRAM_PASSWORD}"
             wolframscript -activate
 
       - run:

From e5b8be8cb204e76c33bd00b3391e1820e5d0f00a Mon Sep 17 00:00:00 2001
From: Max Pi <max@pi.network>
Date: Tue, 22 Sep 2026 16:19:11 -0700
Subject: [PATCH 06/10] Rerun CI with corrected Wolfram credentials


From 8ebd68ee57af0264d803f32070cb1a68a606bc3b Mon Sep 17 00:00:00 2001
From: Max Pi <max@pi.network>
Date: Tue, 22 Sep 2026 16:28:40 -0700
Subject: [PATCH 07/10] Install Wolfram front-end dependencies for CI tests

---
 .circleci/config.yml | 4 +++-
 test.wls             | 4 ++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 24cfc17..8aba784 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -15,7 +15,9 @@ jobs:
           name: Install Required Tools
           command: |
             apt-get update
-            apt-get install --no-install-recommends -y g++ git openssh-client
+            # UsingFrontEnd needs the runtime libraries included in the official 12.3 image.
+            apt-get install --no-install-recommends -y \
+              g++ git openssh-client netbase libgl1-mesa-glx libfontconfig1 libasound2
 
       - checkout
 
diff --git a/test.wls b/test.wls
index 3cfa82e..9b52ebd 100755
--- a/test.wls
+++ b/test.wls
@@ -1,7 +1,7 @@
 #!/usr/bin/env wolframscript
 
-(* Disable messages about outdated cloud. *)
-Off[CloudConnect::clver];
+(* These tests run locally; cloud support for older kernels is not required. *)
+Off[CloudConnect::clver, CloudConnect::verr];
 
 $redColor = "\033[0;31m";
 $greenColor = "\033[0;32m";

From 260b0b8d4576e71c2e0e5d24a866203c582f1215 Mon Sep 17 00:00:00 2001
From: Max Pi <max@pi.network>
Date: Tue, 22 Sep 2026 16:30:12 -0700
Subject: [PATCH 08/10] Use Wolfram Engine 12.3 with bundled front-end
 dependencies

---
 .circleci/config.yml | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 8aba784..cb0b4e5 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -6,7 +6,7 @@ orbs:
 jobs:
   wolfram-language-paclet-test:
     docker:
-      - image: wolframresearch/wolframengine:12.1.1
+      - image: wolframresearch/wolframengine:12.3.0
         user: root
     parallelism: 4
 
@@ -15,9 +15,7 @@ jobs:
           name: Install Required Tools
           command: |
             apt-get update
-            # UsingFrontEnd needs the runtime libraries included in the official 12.3 image.
-            apt-get install --no-install-recommends -y \
-              g++ git openssh-client netbase libgl1-mesa-glx libfontconfig1 libasound2
+            apt-get install --no-install-recommends -y g++ git openssh-client
 
       - checkout
 

From 1973c226d036a6025e783711b7a5e4932a401f0f Mon Sep 17 00:00:00 2001
From: Max Pi <max@pi.network>
Date: Tue, 22 Sep 2026 16:31:41 -0700
Subject: [PATCH 09/10] Check paclet compatibility with Wolfram Engine 15

---
 .circleci/config.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index cb0b4e5..855cd12 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -6,7 +6,7 @@ orbs:
 jobs:
   wolfram-language-paclet-test:
     docker:
-      - image: wolframresearch/wolframengine:12.3.0
+      - image: wolframresearch/wolframengine:15.0.0
         user: root
     parallelism: 4
 

From 2959bafb14e5a1aafe81b2dec1f44d37870a230d Mon Sep 17 00:00:00 2001
From: Max Pi <max@pi.network>
Date: Tue, 22 Sep 2026 16:44:31 -0700
Subject: [PATCH 10/10] Give Wolfram test reports enough container memory

---
 .circleci/config.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 855cd12..74170f9 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -8,6 +8,7 @@ jobs:
     docker:
       - image: wolframresearch/wolframengine:15.0.0
         user: root
+    resource_class: large # The history-test report exceeds the default container memory.
     parallelism: 4
 
     steps: