diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e5d28c9..f16fde5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,9 +14,9 @@ jobs:
     - uses: actions/checkout@v2
     - run: yarn
     - run: yarn lint
+    # - uses: gozala/typescript-error-reporter-action@v1.0.4
     - run: yarn build
-    - uses: gozala/typescript-error-reporter-action@v1.0.4
-    - run: yarn aegir dep-check -- -i aegir
+    - run: yarn aegir dep-check
     - uses: ipfs/aegir/actions/bundle-size@master
       name: size
       with:
@@ -35,7 +35,7 @@ jobs:
         with:
           node-version: ${{ matrix.node }}
       - run: yarn
-      - run: npx nyc --reporter=lcov npm run test:node -- --bail
+      - run: npx nyc --reporter=lcov aegir test -t node -- --bail
       - uses: codecov/codecov-action@v1
   test-chrome:
     needs: check
@@ -43,11 +43,11 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - run: yarn
-      - run: yarn aegir test -t browser -t webworker
+      - run: npx aegir test -t browser -t webworker --bail
   test-firefox:
     needs: check
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - run: yarn
-      - run: yarn aegir test -t browser -t webworker -- --browsers FirefoxHeadless
\ No newline at end of file
+      - run: npx aegir test -t browser -t webworker --bail -- --browsers FirefoxHeadless
\ No newline at end of file
diff --git a/.github/workflows/typecheck.yml b/.github/workflows/typecheck.yml
deleted file mode 100644
index 6146374..0000000
--- a/.github/workflows/typecheck.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-on:
-  push:
-    branches:
-      - master
-      - main
-      - default
-  pull_request:
-    branches:
-      - '**'
-
-name: Typecheck
-jobs:
-  check:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: [12.x]
-    steps:
-      - uses: actions/checkout@v1
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
-        with:
-          node-version: ${{ matrix.node-version }}
-      - name: Install dependencies
-        run: npm install
-      - name: Typecheck
-        uses: gozala/typescript-error-reporter-action@v1.0.8
diff --git a/src/connection/connection.js b/src/connection/connection.js
index c429624..9ce6dca 100644
--- a/src/connection/connection.js
+++ b/src/connection/connection.js
@@ -20,10 +20,7 @@ const connectionSymbol = Symbol.for('@libp2p/interface-connection/connection')
  *
  * @typedef {Object} ConectionStat
  * @property {string} direction - connection establishment direction ("inbound" or "outbound").
- * @property {object} timeline - connection relevant events timestamp.
- * @property {number} timeline.open - connection opening timestamp.
- * @property {number} [timeline.upgraded] - connection upgraded timestamp.
- * @property {number} [timeline.close] - connection upgraded timestamp.
+ * @property {Timeline} timeline - connection relevant events timestamp.
  * @property {string} [multiplexer] - connection multiplexing identifier.
  * @property {string} [encryption] - connection encryption method identifier.
  *
diff --git a/src/transport/types.ts b/src/transport/types.ts
index 9365c40..088fb7c 100644
--- a/src/transport/types.ts
+++ b/src/transport/types.ts
@@ -3,16 +3,20 @@ import Multiaddr from 'multiaddr'
 import Connection from '../connection/connection'
 import { Sink } from '../stream-muxer/types'
 
+export type DialOptions = {
+  signal?: AbortSignal
+}
+
 /**
  * A libp2p transport is understood as something that offers a dial and listen interface to establish connections.
  */
-export interface Transport {
-  new (upgrader: Upgrader, ...others: any): Transport; // eslint-disable-line
-  prototype: Transport;
+export interface Transport <DialOptions extends { signal?: AbortSignal }> {
+  new (upgrader: Upgrader, ...others: any): Transport<DialOptions>; // eslint-disable-line
+  prototype: Transport <DialOptions>;
   /**
    * Dial a given multiaddr.
    */
-  dial(ma: Multiaddr, options?: any): Promise<Connection>;
+  dial(ma: Multiaddr, options?: DialOptions): Promise<Connection>;
   /**
    * Create transport listeners.
    */