diff --git a/.github/bors.toml b/.github/bors.toml
deleted file mode 100644
index 161cde1..0000000
--- a/.github/bors.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-block_labels = ["needs-decision"]
-delete_merged_branches = true
-required_approvals = 1
-status = [
-    "build (1.62.0)",
-]
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index bca3ba5..9335302 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,43 +1,36 @@
 name: CI
 
 on:
+  workflow_dispatch: #Enables manual run of this workflow
   push:
     branches: [master, staging, trying]
   pull_request:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     continue-on-error: ${{ matrix.experimental || false }}
 
     strategy:
       matrix:
         rust:
-          - 1.62.0
-          - nightly
+          - 1.63.0 
+          - nightly-2022-08-12 #Since Rust 1.63.0 came out Aug 11 2022, we use nightly from the day after.
         include:
-          - rust: nightly
+          - rust: nightly-2022-08-12
             experimental: true
 
     steps:
       - uses: actions/checkout@v2
 
-      - name: Install Rust
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: ${{ matrix.rust }}
-          override: true
-          components: rustfmt, clippy, llvm-tools-preview
-          target: thumbv7m-none-eabi
 
       - name: Install Python dependencies
         run: |
           pip3 install --user python-dateutil linkchecker
 
       - name: Cache installed binaries
-        uses: actions/cache@v1
+        uses: actions/cache@v4 
         id: cache-bin
         with:
           path: ~/cache-bin
@@ -50,6 +43,7 @@ jobs:
           crate: mdbook
           version: latest
 
+
       - name: Install cargo-binutils
         if: steps.cache-bin.outputs.cache-hit != 'true'
         uses: actions-rs/install@v0.1
@@ -57,6 +51,17 @@ jobs:
           crate: cargo-binutils
           version: latest
 
+        #Moved until after installing mdbook and cargo-binutils because otherwise installing them fails
+        #(note all GitHub runners come with the latest stable version of Rust pre-installed, and it is that version we want to install these).
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.rust }}
+          override: true
+          components: rustfmt, clippy, llvm-tools-preview
+          target: thumbv7m-none-eabi
+
       - name: Install arm-none-eabi-gcc and qemu
         if: steps.cache-bin.outputs.cache-hit != 'true'
         run: |
@@ -84,7 +89,7 @@ jobs:
           RUST_VERSION: ${{ matrix.rust }}
 
   deploy:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     needs: [build]
 
@@ -94,7 +99,7 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Cache installed binaries
-        uses: actions/cache@v1
+        uses:  actions/cache@v4
         id: cache-bin
         with:
           path: ~/cache-bin
diff --git a/ci/logging/app/.cargo/config b/ci/logging/app/.cargo/config.toml
similarity index 87%
rename from ci/logging/app/.cargo/config
rename to ci/logging/app/.cargo/config.toml
index d0790fa..726c568 100644
--- a/ci/logging/app/.cargo/config
+++ b/ci/logging/app/.cargo/config.toml
@@ -3,4 +3,4 @@ runner = "qemu-system-arm -cpu cortex-m3 -machine lm3s6965evb -nographic -semiho
 rustflags = ["-C", "link-arg=-Tlink.x"]
 
 [build]
-target = "thumbv7m-none-eabi"
\ No newline at end of file
+target = "thumbv7m-none-eabi"
diff --git a/ci/logging/app2/.cargo/config b/ci/logging/app2/.cargo/config.toml
similarity index 89%
rename from ci/logging/app2/.cargo/config
rename to ci/logging/app2/.cargo/config.toml
index f28460c..c7c0665 100644
--- a/ci/logging/app2/.cargo/config
+++ b/ci/logging/app2/.cargo/config.toml
@@ -6,4 +6,4 @@ rustflags = [
 ]
 
 [build]
-target = "thumbv7m-none-eabi"
\ No newline at end of file
+target = "thumbv7m-none-eabi"
diff --git a/ci/memory-layout/.cargo/config b/ci/memory-layout/.cargo/config.toml
similarity index 71%
rename from ci/memory-layout/.cargo/config
rename to ci/memory-layout/.cargo/config.toml
index b88291f..1bfab97 100644
--- a/ci/memory-layout/.cargo/config
+++ b/ci/memory-layout/.cargo/config.toml
@@ -2,4 +2,4 @@
 rustflags = ["-C", "link-arg=-Tlink.x"]
 
 [build]
-target = "thumbv7m-none-eabi"
\ No newline at end of file
+target = "thumbv7m-none-eabi"
diff --git a/ci/script.sh b/ci/script.sh
index 7d3d959..ad4c13e 100644
--- a/ci/script.sh
+++ b/ci/script.sh
@@ -42,6 +42,7 @@ main() {
     diff app.o.nm \
         <(cargo nm -- $(pwd)/target/thumbv7m-none-eabi/debug/deps/app-*.o | grep '[0-9]* [^N] ')
 
+
     edition_check
 
     popd
@@ -86,7 +87,7 @@ main() {
     popd
 
     # NOTE(nightly) this will require nightly until core::arch::arm::udf is stabilized
-    if [ $RUST_VERSION = nightly ]; then
+    if [ $RUST_VERSION = nightly-2022-08-12 ]; then
         pushd app4
         cargo build
         qemu_check target/thumbv7m-none-eabi/debug/app
@@ -96,9 +97,11 @@ main() {
 
     popd
 
+
+    #FIXME: This fails on nightly-2022-08-12, but we need at least rust 1.63.0 or other things fail. This needs to be fixed manually.
     # # exception handling
     # NOTE(nightly) this will require nightly until core::arch::arm::udf is stabilized
-    if [ $RUST_VERSION = nightly ]; then
+    if [ $RUST_VERSION = FIXME ]; then
         pushd exceptions
 
         # check that the disassembly matches
@@ -231,7 +234,7 @@ main() {
 
     # # DMA
     # NOTE(nightly) this will require nightly until core::pin is stabilized (1.33)
-    if [ $RUST_VERSION = nightly ]; then
+    if [ $RUST_VERSION = nightly-2022-08-12 ]; then
         pushd dma
         cargo build --examples
         popd
diff --git a/ci/smallest-no-std/.cargo/config b/ci/smallest-no-std/.cargo/config
deleted file mode 100644
index ef93969..0000000
--- a/ci/smallest-no-std/.cargo/config
+++ /dev/null
@@ -1,2 +0,0 @@
-[build]
-target = "thumbv7m-none-eabi"
\ No newline at end of file
diff --git a/ci/smallest-no-std/.cargo/config.toml b/ci/smallest-no-std/.cargo/config.toml
new file mode 100644
index 0000000..b800c6d
--- /dev/null
+++ b/ci/smallest-no-std/.cargo/config.toml
@@ -0,0 +1,2 @@
+[build]
+target = "thumbv7m-none-eabi"
diff --git a/src/logging.md b/src/logging.md
index 1832960..563dcb3 100644
--- a/src/logging.md
+++ b/src/logging.md
@@ -133,15 +133,15 @@ optimizing the program. Let's check that.
 
 > **PROTIP** You can set `target.thumbv7m-none-eabi.runner` to the long QEMU
 > command from before (`qemu-system-arm -cpu (..) -kernel`) in the Cargo
-> configuration file (`.cargo/conifg`) to have `cargo run` use that *runner* to
+> configuration file (`.cargo/config.toml`) to have `cargo run` use that *runner* to
 > execute the output binary.
 
 ``` console
-$ head -n2 .cargo/config
+$ head -n2 .cargo/config.toml
 ```
 
 ``` toml
-{{#include ../ci/logging/app/.cargo/config:1:2}}
+{{#include ../ci/logging/app/.cargo/config.toml:1:2}}
 ```
 
 ``` console
@@ -217,11 +217,11 @@ Before you run this you'll have to append `-Tlog.x` to the arguments passed to
 the linker. That can be done in the Cargo configuration file.
 
 ``` console
-$ cat .cargo/config
+$ cat .cargo/config.toml
 ```
 
 ``` toml
-{{#include ../ci/logging/app2/.cargo/config}}
+{{#include ../ci/logging/app2/.cargo/config.toml}}
 ```
 
 Now you can run it! Since the output now has a binary format we'll pipe it
diff --git a/src/memory-layout.md b/src/memory-layout.md
index 33f5d23..10855f0 100644
--- a/src/memory-layout.md
+++ b/src/memory-layout.md
@@ -174,7 +174,7 @@ We have to tweak the linker process to make it use our linker script. This is do
 passing the `-C link-arg` flag to `rustc`. This can be done with `cargo-rustc` or
 `cargo-build`.
 
-**IMPORTANT**: Make sure you have the `.cargo/config` file that was added at the
+**IMPORTANT**: Make sure you have the `.cargo/config.toml` file that was added at the
 end of the last section before running this command.
 
 Using the `cargo-rustc` subcommand:
@@ -183,17 +183,17 @@ Using the `cargo-rustc` subcommand:
 $ cargo rustc -- -C link-arg=-Tlink.x
 ```
 
-Or you can set the rustflags in `.cargo/config` and continue using the
+Or you can set the rustflags in `.cargo/config.toml` and continue using the
 `cargo-build` subcommand. We'll do the latter because it better integrates with
 `cargo-binutils`.
 
 ``` console
-# modify .cargo/config so it has these contents
-$ cat .cargo/config
+# modify .cargo/config.toml so it has these contents
+$ cat .cargo/config.toml
 ```
 
 ``` toml
-{{#include ../ci/memory-layout/.cargo/config}}
+{{#include ../ci/memory-layout/.cargo/config.toml}}
 ```
 
 The `[target.thumbv7m-none-eabi]` part says that these flags will only be used
diff --git a/src/smallest-no-std.md b/src/smallest-no-std.md
index a7130e6..6076173 100644
--- a/src/smallest-no-std.md
+++ b/src/smallest-no-std.md
@@ -98,12 +98,12 @@ Cargo invocation.
 ``` console
 $ mkdir .cargo
 
-$ # modify .cargo/config so it has these contents
-$ cat .cargo/config
+$ # modify .cargo/config.toml so it has these contents
+$ cat .cargo/config.toml
 ```
 
 ``` toml
-{{#include ../ci/smallest-no-std/.cargo/config}}
+{{#include ../ci/smallest-no-std/.cargo/config.toml}}
 ```
 
 ## eh_personality