diff --git a/.github/bors.toml b/.github/bors.toml
deleted file mode 100644
index bb1a0763..00000000
--- a/.github/bors.toml
+++ /dev/null
@@ -1,11 +0,0 @@
-required_approvals = 1
-block_labels = ["wip"]
-delete_merged_branches = true
-status = [
-    "Rustfmt",
-    "ci (stm32f100, stable)",
-    "ci (stm32f101, stable)",
-    "ci (stm32f103, stable)",
-    "ci (stm32f105, stable)",
-    "ci (stm32f107, stable)",
-]
diff --git a/.github/workflows/changelog.yml b/.github/workflows/changelog.yml
new file mode 100644
index 00000000..c0d72f31
--- /dev/null
+++ b/.github/workflows/changelog.yml
@@ -0,0 +1,19 @@
+on:
+  pull_request_target:
+
+name: Changelog check
+
+jobs:
+  changelog:
+    name: Changelog check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+
+      - name: Changelog updated
+        uses: Zomzog/changelog-checker@v1.2.0
+        with:
+          fileName: CHANGELOG.md
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7c930ba2..034cde6f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,12 +1,22 @@
 on:
   push:
-    branches: [ staging, trying, master ]
+    branches: master
   pull_request:
+  merge_group:
 
 name: Continuous integration
 
 jobs:
   ci:
+    name: CI
+    runs-on: ubuntu-latest
+    needs: [check]
+    if: always()
+    steps:
+      - name: Done
+        run: jq --exit-status 'all(.result == "success")' <<< '${{ toJson(needs) }}'
+
+  check:
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -33,7 +43,7 @@ jobs:
       - uses: actions-rs/cargo@v1
         with:
           command: check
-          args: --features=${{ matrix.mcu }},rt --examples
+          args: --features=${{ matrix.mcu }},rtic,high --examples
 
       - uses: actions-rs/cargo@v1
         with:
diff --git a/.github/workflows/clippy.yml b/.github/workflows/clippy.yml
index 628f1166..35c2ea1c 100644
--- a/.github/workflows/clippy.yml
+++ b/.github/workflows/clippy.yml
@@ -1,4 +1,7 @@
-on: [push, pull_request]
+on:
+  push:
+    branches: master
+  pull_request:
 
 name: Clippy check
 jobs:
diff --git a/.github/workflows/rustfmt.yml b/.github/workflows/rustfmt.yml
index 06d134ce..8b6ecab3 100644
--- a/.github/workflows/rustfmt.yml
+++ b/.github/workflows/rustfmt.yml
@@ -1,4 +1,8 @@
-on: [push, pull_request]
+on:
+  push:
+    branches: master
+  pull_request:
+  merge_group:
 
 name: Code formatting check
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 780daf58..43acf6e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+- Move from bors/manual merge to GH merge queue
+- Add tools/check.py python script for local check
+- Add changelog check on PRs
+
 ## [v0.10.0] - 2022-12-12
 
 - `Timer`: adds `get_interrupt` to `Timer`
diff --git a/Cargo.toml b/Cargo.toml
index 99e77875..8415a1a6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,7 +50,8 @@ unwrap-infallible = "0.1.5"
 [features]
 device-selected = []
 doc = []
-rt = ["stm32f1/rt"]
+# deprecated feature
+rt = []
 stm32f100 = ["stm32f1/stm32f100", "device-selected"]
 stm32f101 = ["stm32f1/stm32f101", "device-selected"]
 stm32f103 = ["stm32f1/stm32f103", "device-selected", "has-can", "stm32-usbd"]
@@ -68,7 +69,7 @@ connectivity = ["medium", "has-can"]
 # Devices with CAN interface
 has-can = []
 
-rtic = ["rt", "rtic-monotonic"]
+rtic = ["rtic-monotonic"]
 
 [profile.dev]
 incremental = false
@@ -81,23 +82,23 @@ lto = true
 
 [[example]]
 name = "usb_serial"
-required-features = ["rt", "stm32-usbd"]
+required-features = ["stm32-usbd"]
 
 [[example]]
 name = "usb_serial_interrupt"
-required-features = ["rt", "stm32-usbd"]
+required-features = ["stm32-usbd"]
 
 [[example]]
 name = "usb_serial_rtic"
-required-features = ["rt", "stm32-usbd"]
+required-features = ["stm32-usbd"]
 
 [[example]]
 name = "blinky_timer_irq"
-required-features = ["rt"]
+required-features = []
 
 [[example]]
 name = "blinky_rtcalarm_irq"
-required-features = ["rt"]
+required-features = []
 
 [[example]]
 name = "qei"
@@ -105,11 +106,11 @@ required-features = ["medium"]
 
 [[example]]
 name = "timer-interrupt-rtic"
-required-features = ["rt", "medium"]
+required-features = ["stm32f103", "medium"]
 
 [[example]]
 name = "exti"
-required-features = ["rt"]
+required-features = []
 
 [[example]]
 name = "can-echo"
@@ -121,7 +122,7 @@ required-features = ["has-can"]
 
 [[example]]
 name = "can-rtic"
-required-features = ["has-can", "rt"]
+required-features = ["has-can"]
 
 [[example]]
 name = "gpio_input"
@@ -129,4 +130,4 @@ required-features = ["stm32f103"]
 
 [[example]]
 name = "serial-interrupt-idle"
-required-features = ["stm32f103", "rt", "medium"]
+required-features = ["stm32f103", "medium"]
diff --git a/examples/serial-interrupt-idle.rs b/examples/serial-interrupt-idle.rs
index ac48deca..41af5eef 100644
--- a/examples/serial-interrupt-idle.rs
+++ b/examples/serial-interrupt-idle.rs
@@ -13,7 +13,7 @@ use stm32f1xx_hal::{
     pac::interrupt,
     pac::USART1,
     prelude::*,
-    serial::{Config, Rx, Serial, Tx},
+    serial::{Rx, Serial, Tx},
 };
 
 static mut RX: Option<Rx<USART1>> = None;
@@ -44,14 +44,8 @@ fn main() -> ! {
 
     // Set up the usart device. Takes ownership over the USART register and tx/rx pins. The rest of
     // the registers are used to enable and configure the device.
-    let (mut tx, mut rx) = Serial::usart1(
-        p.USART1,
-        (tx, rx),
-        &mut afio.mapr,
-        Config::default().baudrate(115200.bps()),
-        clocks,
-    )
-    .split();
+    let (mut tx, mut rx) =
+        Serial::new(p.USART1, (tx, rx), &mut afio.mapr, 115200.bps(), &clocks).split();
     tx.listen();
     rx.listen();
     rx.listen_idle();
diff --git a/src/flash.rs b/src/flash.rs
index dbd51cde..605eb4ab 100644
--- a/src/flash.rs
+++ b/src/flash.rs
@@ -112,7 +112,7 @@ impl<'a> FlashWriter<'a> {
     }
 
     fn valid_length(&self, offset: u32, length: usize) -> Result<()> {
-        if offset + length as u32 > self.flash_sz.kbytes() as u32 {
+        if offset + length as u32 > self.flash_sz.kbytes() {
             Err(Error::LengthTooLong)
         } else if length & 0x1 != 0 {
             Err(Error::LengthNotMultiple2)
@@ -178,7 +178,7 @@ impl<'a> FlashWriter<'a> {
                 let size = self.sector_sz.kbytes() as u32;
                 let start = start_offset & !(size - 1);
                 for idx in (start..start + size).step_by(2) {
-                    let write_address = (FLASH_START + idx as u32) as *const u16;
+                    let write_address = (FLASH_START + idx) as *const u16;
                     let verify: u16 = unsafe { core::ptr::read_volatile(write_address) };
                     if verify != 0xFFFF {
                         return Err(Error::VerifyError);
@@ -209,7 +209,7 @@ impl<'a> FlashWriter<'a> {
     pub fn read(&self, offset: u32, length: usize) -> Result<&[u8]> {
         self.valid_address(offset)?;
 
-        if offset + length as u32 > self.flash_sz.kbytes() as u32 {
+        if offset + length as u32 > self.flash_sz.kbytes() {
             return Err(Error::LengthTooLong);
         }
 
diff --git a/src/gpio.rs b/src/gpio.rs
index 5b89bbee..60535459 100644
--- a/src/gpio.rs
+++ b/src/gpio.rs
@@ -125,6 +125,9 @@ pub trait GpioExt {
     fn split(self) -> Self::Parts;
 
     /// Splits the GPIO block into independent pins and registers without resetting its state.
+    ///
+    /// # Safety
+    /// Make sure that all pins modes are set in reset state.
     unsafe fn split_without_reset(self) -> Self::Parts;
 }
 
diff --git a/src/timer.rs b/src/timer.rs
index 8b0903a3..7faa1e7a 100644
--- a/src/timer.rs
+++ b/src/timer.rs
@@ -62,9 +62,8 @@ use crate::time::Hertz;
 pub mod monotonic;
 #[cfg(feature = "rtic")]
 pub use monotonic::*;
-pub mod pwm_input;
-pub use pwm_input::*;
 pub(crate) mod pins;
+pub mod pwm_input;
 pub use pins::*;
 pub mod delay;
 pub use delay::*;
diff --git a/tools/check.py b/tools/check.py
new file mode 100755
index 00000000..939d221c
--- /dev/null
+++ b/tools/check.py
@@ -0,0 +1,50 @@
+#! /usr/bin/env python3
+
+import json
+import subprocess
+import sys
+
+
+def run_inner(args):
+    print("Running `{}`...".format(" ".join(args)))
+    ret = subprocess.call(args) == 0
+    print("")
+    return ret
+
+
+def run(mcu, cargo_cmd):
+    if mcu == "":
+        return run_inner(cargo_cmd)
+    else:
+        return run_inner(cargo_cmd + ["--features={}".format(mcu)])
+
+
+def main():
+    cargo_meta = json.loads(
+        subprocess.check_output("cargo metadata --no-deps --format-version=1",
+                       shell=True,
+                       universal_newlines=True)
+        )
+
+    crate_info = cargo_meta["packages"][0]
+
+    features = ["{},rtic,high".format(x)
+            for x in crate_info["features"].keys()
+            if x.startswith("stm32f1")]
+
+    if 'size_check' in sys.argv:
+        cargo_cmd = ['cargo', 'build', '--release']
+    else:
+        cargo_cmd = ['cargo', 'check']
+    
+    if '--examples' in sys.argv:
+        cargo_cmd += ['--examples']
+
+    if not all(map(lambda f: run(f, cargo_cmd),
+                   features)):
+        sys.exit(-1)
+
+
+if __name__ == "__main__":
+    main()
+