diff --git a/.appveyor.yml b/.appveyor.yml
index 9ed9ab60..8a3c3d11 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -38,7 +38,7 @@ environment:
     ARCH: x64_arm64
     TEST_TARGET: check-deps
 
-clone_depth: 50
+clone_depth: 1
 
 build_script:
 - cmd: if [%TARGET%]==[cmake] (
diff --git a/.github/workflows/cmake-build.yml b/.github/workflows/cmake-build.yml
index ea33043a..d6354cd1 100644
--- a/.github/workflows/cmake-build.yml
+++ b/.github/workflows/cmake-build.yml
@@ -14,19 +14,19 @@ jobs:
       fail-fast: false
 
       matrix:
-        os: [ macos-15-intel, macos-latest, ubuntu-24.04-arm, ubuntu-latest, windows-11-arm, windows-latest ]
+        os: [ macos-26-intel, macos-latest, ubuntu-24.04-arm, ubuntu-latest, windows-11-arm, windows-latest ]
         c_compiler: [ cl, clang, gcc ]
-        build_type: [ Release, Debug, MinSizeRel ]
+        build_type: [ Release, Debug ]
         shared_libs: [ off, on ]
         assertions: [ off, on ]
         atomic_intrinsics: [ on, off ]
         exclude:
         - c_compiler: gcc
-          os: macos-15-intel
+          os: macos-26-intel
         - c_compiler: gcc
           os: macos-latest
         - c_compiler: cl
-          os: macos-15-intel
+          os: macos-26-intel
         - c_compiler: cl
           os: macos-latest
         - c_compiler: cl
@@ -38,8 +38,6 @@ jobs:
           build_type: Debug
         - assertions: on
           build_type: Release
-        - build_type: MinSizeRel
-          shared_libs: off
         include:
         - os: windows-11-arm
           c_compiler: clang
@@ -93,7 +91,7 @@ jobs:
         ${{ matrix.disable_docs_opt }}
         ${{ matrix.disable_gpl_opt }}
         ${{ matrix.no_install_headers }}
-        -Werror=dev
+        -Werror=author
         -S ${{ github.workspace }}
 
     - name: Build
diff --git a/.travis.yml b/.travis.yml
index 9ac6593b..8d1c1bc3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -72,6 +72,7 @@ jobs:
     dist: focal
     env:
     - CFLAGS_EXTRA="-fsanitize=address -fno-omit-frame-pointer"
+    - CONF_OPTIONS="--disable-atomic-intrinsics"
     - TESTS_CUSTOM_RUN=true
   - addons:
       apt:
@@ -86,42 +87,7 @@ jobs:
   - arch: arm64
     compiler: gcc
     env:
-    - CMAKE_OPTIONS="-DCMAKE_BUILD_TYPE=Release"
-  - arch: ppc64le
-    compiler: clang
-  - arch: ppc64le
-    compiler: gcc
-  - arch: ppc64le
-    compiler: clang
-    env:
-    - CFLAGS_EXTRA="-O3"
-    - CONF_OPTIONS="--enable-assertions --disable-atomic-intrinsics"
-    - TESTS_CUSTOM_RUN=true
-  - arch: ppc64le
-    compiler: gcc
-    env:
-    - CFLAGS_EXTRA="-O3"
-    - CONF_OPTIONS="--disable-atomic-intrinsics"
-    - TESTS_CUSTOM_RUN=true
-  - arch: ppc64le
-    compiler: clang
-    env:
-    - CFLAGS_EXTRA="-O3"
-    - CONF_OPTIONS="--enable-assertions --enable-shared"
-    - TESTS_CUSTOM_RUN=true
-  - arch: ppc64le
-    compiler: gcc
-    env:
-    - CFLAGS_EXTRA="-O3 -D NO_TIMES"
-    - TESTS_CUSTOM_RUN=true
-  - arch: ppc64le
-    compiler: clang
-    env:
-    - CMAKE_OPTIONS="-DCMAKE_BUILD_TYPE=Debug -DAO_BUILD_SHARED_LIBS=ON -Denable_assertions=ON -Denable_docs=OFF"
-  - arch: ppc64le
-    compiler: gcc
-    env:
-    - CMAKE_OPTIONS="-DCMAKE_BUILD_TYPE=MinSizeRel -Denable_assertions=ON -Denable_atomic_intrinsics=OFF"
+    - CMAKE_OPTIONS="-DCMAKE_BUILD_TYPE=Release -Denable_docs=OFF"
   - arch: s390x
     compiler: clang
   - arch: s390x
@@ -146,10 +112,10 @@ jobs:
     - CMAKE_OPTIONS="-DCMAKE_BUILD_TYPE=Debug -Denable_atomic_intrinsics=OFF"
   - compiler: gcc
     env:
-    - CMAKE_OPTIONS="-DAO_BUILD_SHARED_LIBS=ON -Dinstall_headers=OFF"
+    - CMAKE_OPTIONS="-DAO_BUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=MinSizeRel -Dinstall_headers=OFF"
   - compiler: clang
     env:
-    - CFLAGS_EXTRA="-O3 -march=native -funsigned-char"
+    - CFLAGS_EXTRA="-O3 -march=native -funsigned-char -D NO_TIMES"
     - CONF_OPTIONS="--enable-assertions"
   - compiler: gcc
     env:
@@ -514,10 +480,10 @@ jobs:
     - NOLIBC_DELIM=_
   - env:
     - MAKEFILE_TARGET=distcheck
-    - AUTOCONF_VER=2.72
-    - AUTOMAKE_VER=1.18.1
-    - LIBTOOL_VER=2.5.4
-    - M4_VER=1.4.20
+    - AUTOCONF_VER=2.73
+    - AUTOMAKE_VER=1.19
+    - LIBTOOL_VER=2.6.2
+    - M4_VER=1.4.21
   - if: type != pull_request
     addons:
       coverity_scan:
@@ -603,7 +569,7 @@ script:
             LDFLAGS="$LDFLAGS";
   fi
 - if [[ "$CMAKE_OPTIONS" != "" ]]; then
-    cmake $CMAKE_OPTIONS -Denable_werror=ON -Werror=dev . &&
+    cmake $CMAKE_OPTIONS -Denable_werror=ON -Werror=author . &&
     cmake --build . $CMAKE_BUILD_OPTIONS --parallel;
   fi
 - if [[ "$CMAKE_OPTIONS" != "" ]]; then