diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9ec6ae5c..2a769b3f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
     env:
       COLOR: "ON"
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           ref: ${{ github.event.inputs.ref }}
       - name: Install Dependencies
@@ -48,7 +48,7 @@ jobs:
             python3-xcbgen \
             libuv1-dev \
             xcb-proto
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           submodules: true
           ref: ${{ github.event.inputs.ref }}
@@ -115,7 +115,7 @@ jobs:
           if [ "$POLYBAR_BUILD_TYPE" = "tests" ]; then
             sudo apt-get install -y lcov
           fi
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           submodules: true
           ref: ${{ github.event.inputs.ref }}
@@ -125,7 +125,7 @@ jobs:
         run: ./common/ci/configure.sh
       - name: Build
         run: |
-          cd $BUILD_DIR
+          cd "$BUILD_DIR"
           make
       - name: Collect initial coverage
         if: ${{ matrix.polybar_build_type == 'tests' }}
@@ -134,17 +134,17 @@ jobs:
       - name: Tests
         if: ${{ matrix.polybar_build_type == 'tests' }}
         run: |
-          cd $BUILD_DIR
+          cd "$BUILD_DIR"
           make check
       - name: Collect coverage
         if: ${{ matrix.polybar_build_type == 'tests' }}
         run: |
           lcov --capture --no-external --directory . -o cov_tests.info
           lcov --add-tracefile cov_base.info --add-tracefile cov_tests.info -o cov_total.info
-          lcov --remove cov_total.info ${PWD}'/build/*' ${PWD}'/tests/*' ${PWD}'/lib/*' -o cov.info
+          lcov --remove cov_total.info "${PWD}/build/*" "${PWD}/tests/*" "${PWD}/lib/*" -o cov.info
       - name: Upload Coverage
         if: ${{ matrix.polybar_build_type == 'tests' }}
-        uses: codecov/codecov-action@v2
+        uses: codecov/codecov-action@v3
         with:
           flags: unittests
           files: ./cov.info
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 3a8d34c5..4ac2f512 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -31,9 +31,11 @@ jobs:
             RELEASE_TAG=${GITHUB_REF#refs/tags/}
           fi
           echo "Publishing Version $RELEASE_TAG"
-          echo "RELEASE_TAG=$RELEASE_TAG" >> "$GITHUB_ENV"
-          echo "POLYBAR_DIR=polybar-$RELEASE_TAG" >> "$GITHUB_ENV"
-          echo "POLYBAR_ARCHIVE=polybar-$RELEASE_TAG.tar.gz" >> "$GITHUB_ENV"
+          {
+            echo "RELEASE_TAG=$RELEASE_TAG"
+            echo "POLYBAR_DIR=polybar-$RELEASE_TAG"
+            echo "POLYBAR_ARCHIVE=polybar-$RELEASE_TAG.tar.gz"
+          } >> "$GITHUB_ENV"
 
       # Checks out the target tag
       - uses: actions/checkout@v2
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a901db9c..5703aaac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,10 +10,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 ### Breaking
-- `custom/script`: now doesn't hide failing script if it's output is not changing ([`#2636`](https://github.com/polybar/polybar/issues/2636)). Somewhat similar behaviour can be imitated with `format-fail`, if necessary.
+- `custom/script`:
+  - now doesn't hide failing script if it's output is not changing ([`#2636`](https://github.com/polybar/polybar/issues/2636)). Somewhat similar behaviour can be imitated with `format-fail`, if necessary.
+  - If the `exec` command produced no output and exited with a non-zero exit code the module is no longer completely empty, but just has an empty `%output%` token. If you relied on this behavior to hide the module under certain circumstances, make sure the script exits with an exit code of zero. ([`#2857`](https://github.com/polybar/polybar/discussions/2857), [`#2861`](https://github.com/polybar/polybar/pull/2861))
 
 ### Build
-- Respect `CMAKE_INSTALL_PREFIX` when installing default config ([`#2770`](https://github.com/polybar/polybar/pull/2770))
+- Respect `CMAKE_INSTALL_PREFIX` when installing default config ([`#2770`](https://github.com/polybar/polybar/pull/2770), [`#2917`](https://github.com/polybar/polybar/pull/2917))
+- Change default `CMAKE_INSTALL_PREFIX` to `/usr`. Installations with default flags will now go into `/usr` instead of `/usr/local` ([`#2917`](https://github.com/polybar/polybar/pull/2917))
 - Bump C++ version to C++17 ([`#2847`](https://github.com/polybar/polybar/pull/2847))
 
 ### Deprecated
@@ -33,6 +36,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added `enable-struts` option in bar section to enable/disable struts ([`#2769`](https://github.com/polybar/polybar/issues/2769), [`#2844`](https://github.com/polybar/polybar/pull/2844)) by [@VanillaViking](https://github.com/VanillaViking).
 
 ### Changed
+- `custom/script`:
+  - No longer produces a completely empty module if the `exec` command failed. It only produces an empty module if the script had a zero exit code. ([`#2857`](https://github.com/polybar/polybar/discussions/2857), [`#2861`](https://github.com/polybar/polybar/pull/2861))
+  - Bumped the script polling interval (not related to the `interval` setting) to decrease wakeups. Polybar may take slightly longer to shut down. [`#2879`](https://github.com/polybar/polybar/pull/2879)
 - `internal/fs`: Use `/` as a fallback if no mountpoints are specified ([`#2572`](https://github.com/polybar/polybar/issues/2572), [`#2705`](https://github.com/polybar/polybar/pull/2705))
 - `internal/backlight`:
   - Detect backlight if none specified ([`#2572`](https://github.com/polybar/polybar/issues/2572), [`#2728`](https://github.com/polybar/polybar/pull/2728))
@@ -49,6 +55,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Error reporting for deprecated config values ([`#2724`](https://github.com/polybar/polybar/issues/2724))
   - Also monitor include-files for changes when --reload is set ([`#675`](https://github.com/polybar/polybar/issues/675), [`#2759`](https://github.com/polybar/polybar/pull/2759))
 - `internal/xwindow`: module does not crash when a tag is not provided in format ([`#2826`](https://github.com/polybar/polybar/issues/2826), [`#2833`](https://github.com/polybar/polybar/pull/2833)) by [@VanillaViking](https://github.com/VanillaViking)
+- `internal/i3`: module errors when i3 has negative gaps ([`#2888`](https://github.com/polybar/polybar/issues/2888), [`#2889`](https://github.com/polybar/polybar/pull/2889))
 
 ## [3.6.3] - 2022-05-04
 ### Fixed
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0979f8af..acb58b6b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,6 +22,14 @@ else()
   set(APP_VERSION "${version_txt}")
 endif()
 
+# Set the default installation prefix to /usr
+# Otherwise the default value is /usr/local which causes the default config
+# file to be installed to /usr/local/etc, with /usr, cmake has special handling
+# for this.
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "/usr" CACHE PATH "Project-default installation prefix" FORCE)
+endif()
+
 list(APPEND CMAKE_MODULE_PATH
   ${PROJECT_SOURCE_DIR}/cmake
   ${PROJECT_SOURCE_DIR}/cmake/common
@@ -60,10 +68,9 @@ if(BUILD_TESTS)
   add_subdirectory(tests)
 endif()
 
-
 if(BUILD_CONFIG)
   install(FILES ${CMAKE_SOURCE_DIR}/doc/config.ini
-    DESTINATION ${CMAKE_INSTALL_SYSCONFDIR}/${PROJECT_NAME}
+    DESTINATION ${CMAKE_INSTALL_FULL_SYSCONFDIR}/${PROJECT_NAME}
     COMPONENT config)
 endif()
 
diff --git a/cmake/05-summary.cmake b/cmake/05-summary.cmake
index 5f71936f..c649647d 100644
--- a/cmake/05-summary.cmake
+++ b/cmake/05-summary.cmake
@@ -13,11 +13,12 @@ if (BUILD_DOC)
 endif()
 
 message(STATUS " Install Paths:")
-message_colored(STATUS "   PREFIX:  ${CMAKE_INSTALL_PREFIX}" "32")
-message_colored(STATUS "   BINDIR:  ${CMAKE_INSTALL_FULL_BINDIR}" "32")
-message_colored(STATUS "   DATADIR: ${CMAKE_INSTALL_FULL_DATADIR}" "32")
-message_colored(STATUS "   DOCDIR:  ${CMAKE_INSTALL_FULL_DOCDIR}" "32")
-message_colored(STATUS "   MANDIR:  ${CMAKE_INSTALL_FULL_MANDIR}" "32")
+message_colored(STATUS "   PREFIX:     ${CMAKE_INSTALL_PREFIX}" "32")
+message_colored(STATUS "   BINDIR:     ${CMAKE_INSTALL_FULL_BINDIR}" "32")
+message_colored(STATUS "   DATADIR:    ${CMAKE_INSTALL_FULL_DATADIR}" "32")
+message_colored(STATUS "   DOCDIR:     ${CMAKE_INSTALL_FULL_DOCDIR}" "32")
+message_colored(STATUS "   MANDIR:     ${CMAKE_INSTALL_FULL_MANDIR}" "32")
+message_colored(STATUS "   SYSCONFDIR: ${CMAKE_INSTALL_FULL_SYSCONFDIR}" "32")
 
 message(STATUS " Targets:")
 colored_option("   polybar" BUILD_POLYBAR)
diff --git a/lib/i3ipcpp b/lib/i3ipcpp
index 86ddf710..85b444c0 160000
--- a/lib/i3ipcpp
+++ b/lib/i3ipcpp
@@ -1 +1 @@
-Subproject commit 86ddf7102c6903ae0cc543071e2d375403fc0727
+Subproject commit 85b444c06267fbae8e9e06877cae6f03b42acbfb
diff --git a/src/adapters/script_runner.cpp b/src/adapters/script_runner.cpp
index 92dcbc11..c7ffb26a 100644
--- a/src/adapters/script_runner.cpp
+++ b/src/adapters/script_runner.cpp
@@ -109,7 +109,7 @@ script_runner::interval script_runner::run() {
      * For non-tailed scripts, we only use the first line. However, to ensure interruptability when the module shuts
      * down, we still need to continue polling.
      */
-    if (io_util::poll_read(fd, 25) && !got_output) {
+    if (io_util::poll_read(fd, 250) && !got_output) {
       changed = set_output(cmd.readline());
       got_output = true;
     }
@@ -155,7 +155,7 @@ script_runner::interval script_runner::run_tail() {
   assert(fd != -1);
 
   while (!m_stopping && cmd.is_running() && !io_util::poll(fd, POLLHUP, 0)) {
-    if (io_util::poll_read(fd, 25)) {
+    if (io_util::poll_read(fd, 250)) {
       auto changed = set_output(cmd.readline());
 
       if (changed) {
diff --git a/src/modules/script.cpp b/src/modules/script.cpp
index ecdb0f0a..4ff9bebf 100644
--- a/src/modules/script.cpp
+++ b/src/modules/script.cpp
@@ -93,7 +93,7 @@ namespace modules {
 
     m_exit_status = data.exit_status;
 
-    if (data.output.empty()) {
+    if (data.output.empty() && m_exit_status == 0) {
       return "";
     }
 
diff --git a/src/x11/xresources.cpp b/src/x11/xresources.cpp
index 49d4aa2e..4f4e5d53 100644
--- a/src/x11/xresources.cpp
+++ b/src/x11/xresources.cpp
@@ -1,5 +1,7 @@
 #include "x11/xresources.hpp"
 
+#include "common.hpp"
+
 POLYBAR_NS
 
 template <>