diff --git a/.editorconfig b/.editorconfig
deleted file mode 100644
index 3c1f41bdcc..0000000000
--- a/.editorconfig
+++ /dev/null
@@ -1,25 +0,0 @@
-# EditorConfig helps developers define and maintain consistent
-# coding styles between different editors and IDEs
-# editorconfig.org
-
-root = true
-
-
-[*]
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-indent_style = space
-indent_size = 4
-
-[*.rs]
-indent_style = space
-indent_size = 4
-
-[*.toml]
-indent_style = space
-indent_size = 4
-
-[*.md]
-trim_trailing_whitespace = false
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1d1539671c..02e818f18d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,57 +1,102 @@
 name: build
 
+permissions:
+  contents: read
+
 on: [push, pull_request]
 
+env:
+  RUST_BACKTRACE: 1
+  CARGO_TERM_COLOR: always
+  CLICOLOR: 1
+
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
+    permissions:
+      contents: none
+    name: CI
+    needs: [test, lockfile, rustfmt, clippy]
+    runs-on: ubuntu-latest
+    if: "always()"
+    steps:
+      - name: Failed
+        run: exit 1
+        if: "contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') || contains(needs.*.result, 'skipped')"
+  test:
+    name: Test
     strategy:
-      fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
-        toolchain: [stable]
+        os: ["ubuntu-latest", "windows-latest", "macos-latest"]
+        rust: ["stable"]
+    continue-on-error: ${{ matrix.rust != 'stable' }}
+    runs-on: ${{ matrix.os }}
     steps:
-    - name: Install latest nightly
-      uses: actions-rs/toolchain@v1
+    - name: Checkout repository
+      uses: actions/checkout@v4
+    - name: Install Rust
+      uses: dtolnay/rust-toolchain@stable
       with:
-        toolchain: ${{ matrix.toolchain }}
-        override: true
-    - uses: actions/checkout@v2
-    - uses: Swatinem/rust-cache@v1
+        toolchain: ${{ matrix.rust }}
+    - uses: Swatinem/rust-cache@v2
     - name: Build
-      run: cargo build --verbose
-      continue-on-error: ${{ matrix.toolchain != 'stable' }}
-    - name: Run tests
-      run: cargo test --verbose
-      continue-on-error: ${{ matrix.toolchain != 'stable' }}
-
-  clippy:
-    name: clippy (ubuntu-latest, stable)
+      run: cargo test --no-run
+    - name: Test
+      run: cargo test
+  lockfile:
     runs-on: ubuntu-latest
     steps:
-      - name: Install latest stable
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
-          components: clippy
-      - name: Checkout sources
-        uses: actions/checkout@v2
-      - uses: Swatinem/rust-cache@v1
-      - name: Cargo Clippy
-        run: cargo clippy -- -D warnings -A deprecated
-
-  fmt:
-    name: fmt (ubuntu-latest, stable)
+    - name: Checkout repository
+      uses: actions/checkout@v4
+    - name: Install Rust
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        toolchain: stable
+    - uses: Swatinem/rust-cache@v2
+    - name: "Is lockfile updated?"
+      run: cargo update --workspace --locked
+  rustfmt:
+    name: rustfmt
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+    - name: Install Rust
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        toolchain: stable
+        components: rustfmt
+    - uses: Swatinem/rust-cache@v2
+    - name: Check formatting
+      run: cargo fmt --all -- --check
+  clippy:
+    name: clippy
     runs-on: ubuntu-latest
+    permissions:
+      security-events: write # to upload sarif results
     steps:
-      - name: Install latest stable
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-          override: true
-          components: rustfmt
-      - name: Checkout sources
-        uses: actions/checkout@v2
-      - name: Check Formatting
-        run: cargo fmt --all -- --check
+    - name: Checkout repository
+      uses: actions/checkout@v4
+    - name: Install Rust
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        toolchain: stable
+        components: clippy
+    - uses: Swatinem/rust-cache@v2
+    - name: Install SARIF tools
+      run: cargo install clippy-sarif --locked
+    - name: Install SARIF tools
+      run: cargo install sarif-fmt --locked
+    - name: Check
+      run: >
+        cargo clippy --workspace --all-features --all-targets --message-format=json
+        | clippy-sarif
+        | tee clippy-results.sarif
+        | sarif-fmt
+      continue-on-error: true
+    - name: Upload
+      uses: github/codeql-action/upload-sarif@v3
+      with:
+        sarif_file: clippy-results.sarif
+        wait-for-processing: true
+    - name: Report status
+      run: cargo clippy --workspace --all-features --all-targets -- -D warnings --allow deprecated
diff --git a/.github/workflows/post-release.yml b/.github/workflows/post-release.yml
index f4c23f1a44..5a73deb4c0 100644
--- a/.github/workflows/post-release.yml
+++ b/.github/workflows/post-release.yml
@@ -24,7 +24,7 @@ jobs:
         echo "RELEASE_VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
         echo "version is: ${{ env.RELEASE_VERSION }}"
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 1
     - name: Generate Release Notes
diff --git a/.gitignore b/.gitignore
index fa645402e3..eb5a316cbd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,22 +1 @@
-# Project specific stuff
 target
-# rustfmt
-*.bk
-
-# Editor Stuff
-*.sublime-project
-*.sublime-workspace
-.*.swp
-*.bak
-*~
-.vscode
-
-# System stuff
-.DS_Store
-.Spotlight-V100
-.Trashes
-Thumbs.db
-ehthumbs.db
-Desktop.ini
-$RECYCLE.BIN/
-.directory
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 562a4ead86..082f135fb4 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,9 +1,9 @@
 Thanks for your interest - we gratefully welcome contributions.
 
-Questions can be asked in [issues](https://github.com/killercup/cargo-edit/issues), or on [Gitter](https://gitter.im/cargo-edit/Lobby).
+Questions can be asked in [issues](https://github.com/killercup/cargo-edit/issues).
 
 To help us help you get pull requests merged quickly and smoothly, open an issue before submitted large changes. Please keep the contents of pull requests and commits short. Commit messages should include the intent of the commit.
 
 `cargo-edit` has a moderately comprehensive test suite. Contributions that add/improve tests are awesome. Please add tests for every change.
 
-`cargo-edit` uses [`rustfmt-nightly`](https://github.com/rust-lang-nursery/rustfmt) for formatting and [`clippy`](https://github.com/rust-lang-nursery/rust-clippy) for linting.
+`cargo-edit` uses `rustfmt` for formatting and `clippy` for linting.
diff --git a/LICENSE b/LICENSE
index ac009d59ed..aa7fdf131d 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 Without Boats, Pascal Hertleif
+Copyright (c) Individual contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/bors.toml b/bors.toml
deleted file mode 100644
index 4f31a3746b..0000000000
--- a/bors.toml
+++ /dev/null
@@ -1,7 +0,0 @@
-status = [
-  "build (ubuntu-latest, stable)",
-  "build (ubuntu-latest, nightly)",
-  "build (windows-latest, stable)",
-  "build (macOS-latest, stable)",
-]
-use_squash_merge = true
diff --git a/rustfmt.toml b/rustfmt.toml
deleted file mode 100644
index 32a9786fa1..0000000000
--- a/rustfmt.toml
+++ /dev/null
@@ -1 +0,0 @@
-edition = "2018"