diff --git a/.github/workflows/compliance.yml b/.github/workflows/compliance.yml
index 3a5fc4f9ab..3fb45e4a01 100644
--- a/.github/workflows/compliance.yml
+++ b/.github/workflows/compliance.yml
@@ -61,7 +61,7 @@ jobs:
 
     - name: upload-results
       uses: actions/upload-artifact@v3
-      continue-on-error: True
+      continue-on-error: true
       with:
         name: compliance.xml
         path: compliance.xml
diff --git a/.github/workflows/issue_count.yml b/.github/workflows/issue_count.yml
index 314daafd21..5f3b28c1b9 100644
--- a/.github/workflows/issue_count.yml
+++ b/.github/workflows/issue_count.yml
@@ -36,7 +36,7 @@ jobs:
 
     - name: upload-stats
       uses: actions/upload-artifact@v3
-      continue-on-error: True
+      continue-on-error: true
       with:
         name: ${{ env.OUTPUT_FILE_NAME }}
         path: ${{ env.OUTPUT_FILE_NAME }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5caecb9c68..6e266b76a3 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -27,7 +27,7 @@ jobs:
 
       - name: upload-results
         uses: actions/upload-artifact@v3
-        continue-on-error: True
+        continue-on-error: true
         with:
           name: zephyr-${{ steps.get_version.outputs.VERSION }}.spdx
           path: zephyr-${{ steps.get_version.outputs.VERSION }}.spdx
diff --git a/samples/application_development/sysbuild/with_mcuboot/sample.yaml b/samples/application_development/sysbuild/with_mcuboot/sample.yaml
index 0905b87d14..e454543224 100644
--- a/samples/application_development/sysbuild/with_mcuboot/sample.yaml
+++ b/samples/application_development/sysbuild/with_mcuboot/sample.yaml
@@ -3,7 +3,7 @@ sample:
   name: with mcuboot
 tests:
   sample.application_development.sysbuild.with_mcuboot:
-    sysbuild: True
+    sysbuild: true
     # Platform allowed is used as twister using sysbuild still lacks proper
     # filtering support, see discussion in #49552.
     platform_allow: reel_board nrf52840dk_nrf52840
diff --git a/samples/arch/smp/pi/sample.yaml b/samples/arch/smp/pi/sample.yaml
index 152982dda0..30e6948a7a 100644
--- a/samples/arch/smp/pi/sample.yaml
+++ b/samples/arch/smp/pi/sample.yaml
@@ -9,7 +9,7 @@ common:
     harness: console
     harness_config:
       type: multi_line
-      ordered: yes
+      ordered: true
       regex:
         - "Calculate first [0-9]+ digits of Pi independently by [0-9]+ threads.(.*)"
         - "Pi value calculated by thread #[0-9]+: [0-9]+(.*)"
diff --git a/samples/arch/smp/pktqueue/sample.yaml b/samples/arch/smp/pktqueue/sample.yaml
index 6dfed998ef..b802e4f65e 100644
--- a/samples/arch/smp/pktqueue/sample.yaml
+++ b/samples/arch/smp/pktqueue/sample.yaml
@@ -7,7 +7,7 @@ common:
     harness: console
     harness_config:
       type: multi_line
-      ordered: yes
+      ordered: true
       regex:
         - "RESULT: OK(.*)"
 
diff --git a/samples/boards/mec15xxevb_assy6853/power_management/sample.yaml b/samples/boards/mec15xxevb_assy6853/power_management/sample.yaml
index 909cb15e2a..7f69d920d9 100644
--- a/samples/boards/mec15xxevb_assy6853/power_management/sample.yaml
+++ b/samples/boards/mec15xxevb_assy6853/power_management/sample.yaml
@@ -7,7 +7,7 @@ tests:
     harness: console
     harness_config:
         type: multi_line
-        ordered: False
+        ordered: false
         regex:
             - "Wake from Light Sleep"
             - "Wake from Deep Sleep"
diff --git a/samples/drivers/ipm/ipm_mcux/sample.yaml b/samples/drivers/ipm/ipm_mcux/sample.yaml
index 3603aa2123..a25149da00 100644
--- a/samples/drivers/ipm/ipm_mcux/sample.yaml
+++ b/samples/drivers/ipm/ipm_mcux/sample.yaml
@@ -9,7 +9,7 @@ tests:
       - lpcxpresso54114_m4
     tags: ipm
     harness: console
-    sysbuild: True
+    sysbuild: true
     harness_config:
       type: multi_line
       regex:
diff --git a/samples/net/sockets/can/sample.yaml b/samples/net/sockets/can/sample.yaml
index 1bbae58439..8bfff2a420 100644
--- a/samples/net/sockets/can/sample.yaml
+++ b/samples/net/sockets/can/sample.yaml
@@ -11,7 +11,7 @@ tests:
       - CONFIG_NET_SOCKETS_CAN_RECEIVERS=1
     harness_config:
       type: multi_line
-      ordered: True
+      ordered: true
       regex:
         - "(.*)\\[0\\] CAN frame: IDE 0x0 RTR 0x0 ID 0x1 DLC 0x8"
         - "(.*)f0 f1 f2 f3 f4 f5 f6 f7"
@@ -20,7 +20,7 @@ tests:
       - CONFIG_NET_SOCKETS_CAN_RECEIVERS=2
     harness_config:
       type: multi_line
-      ordered: True
+      ordered: true
       regex:
         - "(.*)\\[0\\] CAN frame: IDE 0x0 RTR 0x0 ID 0x1 DLC 0x8"
         - "(.*)f0 f1 f2 f3 f4 f5 f6 f7"
diff --git a/samples/sensor/hts221/sample.yaml b/samples/sensor/hts221/sample.yaml
index 203845cf45..48ca6b279a 100644
--- a/samples/sensor/hts221/sample.yaml
+++ b/samples/sensor/hts221/sample.yaml
@@ -9,7 +9,7 @@ common:
     depends_on: i2c hts221
     harness_config:
         type: multi_line
-        ordered: yes
+        ordered: true
         regex:
             - "Observation:(.*)"
             - "Temperature:(.*) C"
diff --git a/samples/sensor/lps22hb/sample.yaml b/samples/sensor/lps22hb/sample.yaml
index eedeff23e1..12fea07812 100644
--- a/samples/sensor/lps22hb/sample.yaml
+++ b/samples/sensor/lps22hb/sample.yaml
@@ -7,7 +7,7 @@ tests:
     depends_on: i2c lps22hb
     harness_config:
         type: multi_line
-        ordered: yes
+        ordered: true
         regex:
             - "Temperature: (.*)"
             - "Relative Humidity: (.*)"
diff --git a/samples/sensor/lps22hh/sample.yaml b/samples/sensor/lps22hh/sample.yaml
index a391fdf725..1feb36cbaa 100644
--- a/samples/sensor/lps22hh/sample.yaml
+++ b/samples/sensor/lps22hh/sample.yaml
@@ -8,7 +8,7 @@ tests:
     filter: dt_compat_enabled("st,lps22hh")
     harness_config:
         type: multi_line
-        ordered: yes
+        ordered: true
         regex:
             - "Temperature: (.*)"
             - "Pressure: (.*)"
diff --git a/samples/sensor/lps22hh_i3c/sample.yaml b/samples/sensor/lps22hh_i3c/sample.yaml
index 67b2851da2..1923335be1 100644
--- a/samples/sensor/lps22hh_i3c/sample.yaml
+++ b/samples/sensor/lps22hh_i3c/sample.yaml
@@ -9,7 +9,7 @@ tests:
     build_only: true
     harness_config:
         type: multi_line
-        ordered: yes
+        ordered: true
         regex:
             - "Temperature: (.*)"
             - "Pressure: (.*)"
diff --git a/samples/subsys/ipc/openamp/sample.yaml b/samples/subsys/ipc/openamp/sample.yaml
index 9e1a10801b..d1fe1eb5da 100644
--- a/samples/subsys/ipc/openamp/sample.yaml
+++ b/samples/subsys/ipc/openamp/sample.yaml
@@ -9,7 +9,7 @@ tests:
           - mps2_an521
         tags: ipm
         harness: console
-        sysbuild: True
+        sysbuild: true
         harness_config:
           type: multi_line
           regex:
diff --git a/samples/subsys/usb/dfu/sample.yaml b/samples/subsys/usb/dfu/sample.yaml
index 7a6d0108ab..7c846c0558 100644
--- a/samples/subsys/usb/dfu/sample.yaml
+++ b/samples/subsys/usb/dfu/sample.yaml
@@ -2,7 +2,7 @@ sample:
   name: USB DFU sample
 
 common:
-  build_only: True
+  build_only: true
   platform_exclude: native_posix native_posix_64 mimxrt1010_evk
     mimxrt1050_evk_qspi mimxrt1020_evk mimxrt1015_evk mimxrt1060_evk sam4l_ek
     mimxrt1050_evk mimxrt1060_evk_hyperflash nucleo_f207zg teensy40 teensy41
diff --git a/samples/subsys/usb/mass/sample.yaml b/samples/subsys/usb/mass/sample.yaml
index 9ec6994b4c..4b28d0ec99 100644
--- a/samples/subsys/usb/mass/sample.yaml
+++ b/samples/subsys/usb/mass/sample.yaml
@@ -11,7 +11,7 @@ tests:
     harness: console
     harness_config:
       type: multi_line
-      ordered: True
+      ordered: true
       regex:
         - "No file system selected"
         - "The device is put in USB mass storage mode."
@@ -26,7 +26,7 @@ tests:
     harness: console
     harness_config:
       type: multi_line
-      ordered: True
+      ordered: true
       regex:
         - "End of files"
         - "The device is put in USB mass storage mode."
@@ -46,7 +46,7 @@ tests:
     harness: console
     harness_config:
       type: multi_line
-      ordered: True
+      ordered: true
       regex:
         - "End of files"
         - "The device is put in USB mass storage mode."
@@ -63,7 +63,7 @@ tests:
     harness_config:
       fixture: fixture_sdcard
       type: multi_line
-      ordered: True
+      ordered: true
       regex:
         - "End of files"
         - "The device is put in USB mass storage mode."
@@ -83,7 +83,7 @@ tests:
     harness: console
     harness_config:
       type: multi_line
-      ordered: True
+      ordered: true
       regex:
         - "End of files"
         - "The device is put in USB mass storage mode."
diff --git a/scripts/schemas/twister/hwmap-schema.yaml b/scripts/schemas/twister/hwmap-schema.yaml
index 84fbb8e8ee..2759bb0b32 100644
--- a/scripts/schemas/twister/hwmap-schema.yaml
+++ b/scripts/schemas/twister/hwmap-schema.yaml
@@ -1,7 +1,7 @@
 type: seq
 sequence:
   - type: map
-    required: no
+    required: false
     mapping:
       "available":
         type: bool
@@ -52,6 +52,6 @@ sequence:
         required: false
       "fixtures":
         type: seq
-        required: no
+        required: false
         sequence:
           - type: str
diff --git a/scripts/schemas/twister/quarantine-schema.yaml b/scripts/schemas/twister/quarantine-schema.yaml
index 293bbe4921..3bead13020 100644
--- a/scripts/schemas/twister/quarantine-schema.yaml
+++ b/scripts/schemas/twister/quarantine-schema.yaml
@@ -11,7 +11,7 @@ type: seq
 matching: all
 sequence:
   - type: map
-    required: yes
+    required: true
     matching: all
     mapping:
       "scenarios":
@@ -19,13 +19,13 @@ sequence:
         required: true
         sequence:
           - type: str
-          - unique: True
+          - unique: true
       "platforms":
         required: true
         type: seq
         sequence:
           - type: str
-          - unique: True
+          - unique: true
       "comment":
         type: str
         required: false
diff --git a/scripts/tests/twister/test_data/testsuites/tests/test_a/test_data.yaml b/scripts/tests/twister/test_data/testsuites/tests/test_a/test_data.yaml
index 595dfc1a1a..98808c4d85 100644
--- a/scripts/tests/twister/test_data/testsuites/tests/test_a/test_data.yaml
+++ b/scripts/tests/twister/test_data/testsuites/tests/test_a/test_data.yaml
@@ -1,7 +1,7 @@
 tests:
   test_a.check_1:
     tags: test_a
-    build_only: True
+    build_only: true
   test_a.check_2:
     extra_args: CONF_FILE="test.conf"
     tags: test_a
diff --git a/scripts/tests/twister/test_data/testsuites/tests/test_d/test_data.yaml b/scripts/tests/twister/test_data/testsuites/tests/test_d/test_data.yaml
index 726a3b3a04..0b2f69fb84 100644
--- a/scripts/tests/twister/test_data/testsuites/tests/test_d/test_data.yaml
+++ b/scripts/tests/twister/test_data/testsuites/tests/test_d/test_data.yaml
@@ -1,4 +1,4 @@
 tests:
   test_d.check_1:
     tags: test_d
-    build_only: True
+    build_only: true
diff --git a/tests/arch/x86/static_idt/testcase.yaml b/tests/arch/x86/static_idt/testcase.yaml
index a946fb45be..a29bece3bc 100644
--- a/tests/arch/x86/static_idt/testcase.yaml
+++ b/tests/arch/x86/static_idt/testcase.yaml
@@ -1,6 +1,6 @@
 tests:
   arch.x86.interrupt:
-    ignore_faults: True
+    ignore_faults: true
     arch_allow: x86
     filter: not CONFIG_X86_64
     tags: interrupt idt
diff --git a/tests/boot/test_mcuboot/testcase.yaml b/tests/boot/test_mcuboot/testcase.yaml
index 298afb327d..927d20aed9 100644
--- a/tests/boot/test_mcuboot/testcase.yaml
+++ b/tests/boot/test_mcuboot/testcase.yaml
@@ -1,5 +1,5 @@
 common:
-    sysbuild: True
+    sysbuild: true
     harness: console
     harness_config:
       type: multi_line
diff --git a/tests/drivers/coredump/coredump_api/testcase.yaml b/tests/drivers/coredump/coredump_api/testcase.yaml
index de11d3b473..c4e3e1db6f 100644
--- a/tests/drivers/coredump/coredump_api/testcase.yaml
+++ b/tests/drivers/coredump/coredump_api/testcase.yaml
@@ -3,8 +3,8 @@
 
 common:
   tags: coredump
-  ignore_faults: True
-  ignore_qemu_crash: True
+  ignore_faults: true
+  ignore_qemu_crash: true
 tests:
   drivers.coredump.api.qemu_riscv32:
     filter: CONFIG_ARCH_SUPPORTS_COREDUMP
diff --git a/tests/kernel/condvar/condvar_api/testcase.yaml b/tests/kernel/condvar/condvar_api/testcase.yaml
index e18b7bed72..28621ffb6b 100644
--- a/tests/kernel/condvar/condvar_api/testcase.yaml
+++ b/tests/kernel/condvar/condvar_api/testcase.yaml
@@ -1,4 +1,4 @@
 tests:
   kernel.condvar:
-    ignore_faults: True
+    ignore_faults: true
     tags: kernel userspace condition_variables
diff --git a/tests/kernel/events/sys_event/testcase.yaml b/tests/kernel/events/sys_event/testcase.yaml
index ba448dc3c2..d724826001 100644
--- a/tests/kernel/events/sys_event/testcase.yaml
+++ b/tests/kernel/events/sys_event/testcase.yaml
@@ -2,4 +2,4 @@ tests:
   kernel.events.usage:
     filter: CONFIG_ARCH_HAS_USERSPACE
     tags: kernel userspace
-    ignore_faults: True
+    ignore_faults: true
diff --git a/tests/kernel/fatal/exception/testcase.yaml b/tests/kernel/fatal/exception/testcase.yaml
index e47960083c..b9304c3691 100644
--- a/tests/kernel/fatal/exception/testcase.yaml
+++ b/tests/kernel/fatal/exception/testcase.yaml
@@ -1,5 +1,5 @@
 common:
-  ignore_faults: True
+  ignore_faults: true
 tests:
   kernel.common.stack_protection:
     extra_args: CONF_FILE=prj.conf
diff --git a/tests/kernel/fatal/no-multithreading/testcase.yaml b/tests/kernel/fatal/no-multithreading/testcase.yaml
index e74293ecd0..c67ee790ba 100644
--- a/tests/kernel/fatal/no-multithreading/testcase.yaml
+++ b/tests/kernel/fatal/no-multithreading/testcase.yaml
@@ -5,7 +5,7 @@ common:
     - qemu_cortex_m3
     - nsim_em
   tags: kernel scheduler
-  ignore_faults: True
+  ignore_faults: true
 tests:
   kernel.no-mt.cpu_exception:
     extra_args: EXTRA_CPPFLAGS=-DVIA_TWISTER=0
diff --git a/tests/kernel/mem_protect/demand_paging/testcase.yaml b/tests/kernel/mem_protect/demand_paging/testcase.yaml
index d04bc41cc1..e1b8f4e3cd 100644
--- a/tests/kernel/mem_protect/demand_paging/testcase.yaml
+++ b/tests/kernel/mem_protect/demand_paging/testcase.yaml
@@ -1,5 +1,5 @@
 common:
-  ignore_faults: True
+  ignore_faults: true
 tests:
   kernel.demand_paging:
     tags: kernel mmu demand_paging