diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index ed26995..819cb4a 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -6,22 +6,55 @@ on:
       - "master"
 
 jobs:
+  setup:
+    runs-on: ubuntu-latest
+    outputs:
+      releases: ${{ steps.releases.outputs.releases }}
+    steps:
+      - id: releases
+        run: |
+          echo "releases=$(curl -H "Accept: application/vnd.github+json" -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" -H "X-GitHub-Api-Version: 2022-11-28" "https://api.github.com/repos/${{github.repository}}/releases?per_page=100" | jq -c '[.[].tag_name]')" >> $GITHUB_OUTPUT
+  releases:
+    needs: setup
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        release: ${{fromJson(needs.setup.outputs.releases)}}
+    steps:
+      - uses: dsaltares/fetch-gh-release-asset@1.1.2
+        with:
+          version: "tags/${{ matrix.release }}"
+          file: "keymanager-oapi.json"
+          target: "deploy/releases/${{ matrix.release }}/keymanager-oapi.json"
+      - name: Save releases (artifact)
+        uses: actions/upload-artifact@v3
+        with:
+          name: releases
+          retention-days: 7
+          path: |
+            deploy/releases
   deploy:
+    needs: releases
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+      - run: npm i -g @apidevtools/swagger-cli@4
       - name: Prepare deploy directory
         run: |
           mkdir ./deploy
           cp -r dist ./deploy
           cp -r assets ./deploy
-          cp -r index.html ./deploy
-      - name: Bundle spec
-        uses: mpetrunic/swagger-cli-action@v1.0.0
+          cp index.html ./deploy
+      - name: Restore releases
+        uses: actions/download-artifact@v3
         with:
-          command: "bundle ./keymanager-oapi.yaml -r -t yaml -o ./deploy/keymanager-oapi.yaml"
+          name: releases
+          path: deploy/releases
+      - name: Bundle spec
+        run: "swagger-cli bundle ./keymanager-oapi.yaml -r -t yaml -o ./deploy/keymanager-oapi.yaml"
       - name: Publish to Github Pages
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./deploy
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 30ac513..850e6e8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,20 +1,23 @@
 name: CI
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - "master"
+  pull_request:
+  workflow_dispatch:
 
 jobs:
   build:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+      - run: npm i -g @apidevtools/swagger-cli@4 @redocly/cli@1.19.0
 
       - name: Lint spec
-        uses: vaibhav-jain/spectral-action/@v2.6.1
-        with:
-          file_path: keymanager-oapi.yaml
+        run: redocly lint ./keymanager-oapi.yaml
 
       - name: Bundle spec
-        uses: mpetrunic/swagger-cli-action@v1.0.0
-        with:
-          command: "bundle ./keymanager-oapi.yaml -r -t yaml -o ./bundle.yaml"
+        run: "swagger-cli bundle ./keymanager-oapi.yaml -r -t yaml -o ./deploy/keymanager-oapi.yaml"
diff --git a/.github/workflows/pre-release.yaml b/.github/workflows/pre-release.yaml
new file mode 100644
index 0000000..5a88c17
--- /dev/null
+++ b/.github/workflows/pre-release.yaml
@@ -0,0 +1,45 @@
+name: Pre-release
+
+on:
+  push:
+    tags:
+      - "v*-alpha.*"
+      - "v*-beta.*"
+      - "v*-rc.*"
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+      - run: npm i -g @apidevtools/swagger-cli@4
+      - name: Update Spec version
+        run: "sed -i 's/version: \"Dev/version: \"${{ github.ref_name }}/' ./keymanager-oapi.yaml"
+      - name: Bundle yaml spec
+        run: "swagger-cli bundle ./keymanager-oapi.yaml -r -t yaml -o ./deploy/keymanager-oapi.yaml"
+      - name: Bundle json spec
+        run: "swagger-cli bundle ./keymanager-oapi.yaml -r -t json -o ./deploy/keymanager-oapi.json"
+      - name: Create Release
+        id: create_release
+        uses: softprops/action-gh-release@v2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          name: ${{ github.ref_name }}
+          tag_name: ${{ github.ref_name }}
+          draft: false
+          prerelease: true
+          files: |
+            ./deploy/keymanager-oapi.yaml
+            ./deploy/keymanager-oapi.json
+          fail_on_unmatched_files: true
+      - name: Rollback Release
+        if: failure()
+        uses: author/action-rollback@1.0.4
+        with:
+          release_id: ${{ steps.create_release.outputs.id }}
+          tag: ${{ github.ref }}
+          delete_orphan_tag: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 57216f9..460b53f 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -4,57 +4,56 @@ on:
   push:
     tags:
       - "v*"
+      - "!v*-alpha.*"
+      - "!v*-beta.*"
+      - "!v*-rc.*"
 
 jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+      - run: npm i -g @apidevtools/swagger-cli@4
+      - name: Update Spec version
+        run: "sed -i 's/version: \"Dev/version: \"${{ github.ref_name }}/' ./keymanager-oapi.yaml"
       - name: Bundle yaml spec
-        uses: mpetrunic/swagger-cli-action@v1.0.0
-        with:
-          command: "bundle ./keymanager-oapi.yaml -r -t yaml -o ./deploy/keymanager-oapi.yaml"
+        run: "swagger-cli bundle ./keymanager-oapi.yaml -r -t yaml -o ./deploy/keymanager-oapi.yaml"
       - name: Bundle json spec
-        uses: mpetrunic/swagger-cli-action@v1.0.0
+        run: "swagger-cli bundle ./keymanager-oapi.yaml -r -t json -o ./deploy/keymanager-oapi.json"
+      - name: Update index.html
+        run: |
+          sed -i "/urls:/a \            {url: \"./releases/${{ github.ref_name }}/keymanager-oapi.json\", name: \"${{ github.ref_name }}\"}," ./index.html
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v6
         with:
-          command: "bundle ./keymanager-oapi.yaml -r -t json -o ./deploy/keymanager-oapi.json"
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: "Release ${{ github.ref_name }}"
+          branch: release-${{ github.ref_name }}
+          title: "Release ${{ github.ref_name }}"
+          body: ""
+          base: master
+          add-paths: index.html
       - name: Create Release
         id: create_release
-        uses: actions/create-release@v1
+        uses: softprops/action-gh-release@v2
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          tag_name: ${{ github.ref }}
-          release_name: ${{ github.ref }}
+          name: ${{ github.ref_name }}
+          tag_name: ${{ github.ref_name }}
           draft: false
           prerelease: false
-      - name: Upload Yaml Bundle
-        uses: actions/upload-release-asset@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ./deploy/keymanager-oapi.yaml
-          asset_name: keymanager-oapi.yaml
-          asset_content_type: text/x-yaml
-      - name: Upload Json Bundle
-        uses: actions/upload-release-asset@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ./deploy/keymanager-oapi.json
-          asset_name: keymanager-oapi.json
-          asset_content_type: application/json
+          files: |
+            ./deploy/keymanager-oapi.yaml
+            ./deploy/keymanager-oapi.json
+          fail_on_unmatched_files: true
       - name: Rollback Release
         if: failure()
-        uses: author/action-rollback@stable
+        uses: author/action-rollback@1.0.4
         with:
-          # Using a known release ID
-          id: ${{ steps.create_release.id }}
-          # Using a tag name
+          release_id: ${{ steps.create_release.outputs.id }}
           tag: ${{ github.ref }}
-          # Always delete} the tag, even if a release is not associated with it.
-          always_delete_tag: true
+          delete_orphan_tag: true
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
new file mode 100644
index 0000000..52c49fd
--- /dev/null
+++ b/.github/workflows/spellcheck.yml
@@ -0,0 +1,17 @@
+name: Spellcheck
+
+on:
+  push:
+    branches:
+      - "master"
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Spellcheck
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: rojopolis/spellcheck-github-actions@0.40.0
+        name: Spellcheck
diff --git a/.gitignore b/.gitignore
index 1f1025f..dfb6730 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 .idea
-.DS_Store
\ No newline at end of file
+.DS_Store
+deploy
+node_modules
diff --git a/.redocly.yml b/.redocly.yml
new file mode 100644
index 0000000..c2b5106
--- /dev/null
+++ b/.redocly.yml
@@ -0,0 +1,7 @@
+extends:
+  - recommended
+rules:
+  no-unused-components: error
+  operation-4xx-response: off
+  operation-tag-defined: error
+  security-defined: off
diff --git a/.spectral.yml b/.spectral.yml
deleted file mode 100644
index e60e786..0000000
--- a/.spectral.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-extends: [["spectral:oas", "all"]]
-formats: ["oas3"]
-rules:
-  operation-singular-tag: off
-  oas3-parameter-description: off
-  contact-properties: off
-  operation-tags: error
-  openapi-tags-alphabetical: error
-  operation-tag-defined: error
-  paths-snake-case:
-    description: All YAML paths MUST follow snake-case
-    severity: error
-    recommended: true
-    message: "path is not snake-case: {{error}}"
-    given: $.paths[*]~
-    then:
-      function: pattern
-      functionOptions:
-        match: "^\/([a-z0-9]+(_[a-z0-9]+)*)?(\/[a-z0-9]+(_[a-z0-9]+)*|\/{.+})*$"
-  parameters-snake-case-alphanumeric:
-    description: Path parameters MUST follow snake case
-    severity: error
-    recommended: true
-    message: "{{property}} parameter is not snake case: {{error}}"
-    given: $..parameters[?(@.in == 'path' || @.in == 'query')].name
-    then:
-      function: pattern
-      functionOptions:
-        match: "^[a-z][_a-z0-9]+$"
-
-  oas3-request-support-json:
-    description: Every request MUST support `application/json` media type
-    formats:
-      - oas3
-    recommended: true
-    severity: error
-    message: "{{description}}: {{error}}"
-    given: $.paths.[*].requestBody.content[?(@property.indexOf('json') === -1)]^
-    then:
-      function: falsy
-
diff --git a/README.md b/README.md
index 0d1d911..530a3b3 100644
--- a/README.md
+++ b/README.md
@@ -3,8 +3,6 @@
 ![CI](https://github.com/ethereum/keymanager-APIs/workflows/CI/badge.svg)
 [![GitPOAP Badge](https://public-api.gitpoap.io/v1/repo/ethereum/keymanager-APIs/badge)](https://www.gitpoap.io/gh/ethereum/keymanager-APIs)
 
-**_Warning: Super fresh repo, expect rapid iteration and breaking changes_**
-
 Collection of RESTful APIs provided by Ethereum consensus keymanagers
 
 API browser: [https://ethereum.github.io/keymanager-APIs/](https://ethereum.github.io/keymanager-APIs/)
@@ -55,15 +53,15 @@ edits.
 
 ##### Python
 
-```
-python2 -m SimpleHTTPServer 8080
+```sh
+python -m http.server 8080
 ```
 
 The API spec will render on [http://localhost:8080](http://localhost:8080).
 
 ##### NodeJs
 
-```
+```sh
 npm install simplehttpserver -g
 
 # OR
@@ -75,38 +73,51 @@ simplehttpserver
 
 The API spec will render on [http://localhost:8000](http://localhost:8000).
 
+### Usage
+
+Local changes will be observable if "dev" is selected in the "Select a definition" drop-down in the web UI.
+
+Users may need to tick the "Disable Cache" box in their browser's developer tools to see changes after modifying the source.
+
 ## Contributing
 
-The API spec is linted for issues before PRs are merged.
+Api spec is checked for lint errors before merge.
 
-To run the linter locally, install `spectral`:
+To run lint locally, install linter with
 
-```
-npm install -g @stoplight/spectral
+```sh
+npm install -g @redocly/cli
 
 # OR
 
-yarn global add @stoplight/spectral
+yarn global add @redocly/cli
 ```
 
-and run with
+and run lint with
 
-```
-spectral lint keymanager-oapi.yaml
+```sh
+redocly lint keymanager-oapi.yaml
 ```
 
 ## Releasing
 
-1. Create and push a tag
+This repository supports both stable and pre-releases. The version of the next release has to be
+determined based on the changes in `master` branch since the last stable release. It is recommended
+to create a pre-release before releasing a new stable version.
 
-   - Make sure info.version in keymanager-oapi.yaml file is updated before tagging.
-   - CD will create github release and upload bundled spec file
+### Stable releases
 
-2. Add release entrypoint in index.html
+Steps to create a new stable release:
 
-In SwaggerUIBundle configuration (inside index.html file), add another entry in "urls" field (SwaggerUI will load first item as default).
-Entries should be in the following format (replace `<tag>` with the real tag name from step 1):
+- Create and push a tag with the version of the release, e.g. `v1.1.0`
+- CD will create the github release, upload bundled spec files, and open a release PR
+- Review, approve and merge the release PR to `master` branch
 
-```javascript
-         {url: "https://github.com/ethereum/keymanager-APIs/releases/download/<tag>/keymanager-oapi.yaml", name: "<tag>"},
-```
+### Pre-releases
+
+Steps to create a new pre-release:
+
+- Create and push a tag with the version of the release, e.g. `v1.1.0-alpha.0`
+- CD will create the github release and upload bundled spec files
+
+Pre-releases will not be listed in `index.html` and are intended to allow early testing against the spec.
diff --git a/index.html b/index.html
index 99c5d67..3b1c468 100644
--- a/index.html
+++ b/index.html
@@ -54,8 +54,8 @@
         // Begin Swagger UI call region
         const ui = SwaggerUIBundle({
           urls: [
-            { url: "https://github.com/ethereum/keymanager-APIs/releases/download/v1.0.0/keymanager-oapi.yaml", name: "v1.0.0" },
-            { url: "./keymanager-oapi.yaml", name: "dev" }
+            {url: "./releases/v1.0.0/keymanager-oapi.json", name: "v1.0.0"},
+            {url: "./keymanager-oapi.yaml", name: "dev"}
           ],
           basePath: "/",
           dom_id: "#swagger-ui",
diff --git a/keymanager-oapi.yaml b/keymanager-oapi.yaml
index f868e5a..009fe9a 100644
--- a/keymanager-oapi.yaml
+++ b/keymanager-oapi.yaml
@@ -18,7 +18,7 @@ info:
     of at least 256 bits. If such a parameter is not given, the client SHOULD generate such a token and write it to a file, to be reused
     across multiple restarts of the binary. If such a parameter is given, but the file or token cannot be read, the client SHOULD treat this
     as an error: either abort the startup, or show the error and continue without exposing the key manager routes.
-  version: "v1.0.0"
+  version: "Dev"
   contact:
     name: Ethereum Github
     url: https://github.com/ethereum/keymanager-APIs/issues
@@ -31,7 +31,7 @@ servers:
     variables:
       server_url:
         description: "key manager API url"
-        default: "https://public-mainnet-node.ethereum.org"
+        default: "http://localhost/"
 
 tags:
   - name: Fee Recipient
diff --git a/spellcheck.yaml b/spellcheck.yaml
new file mode 100644
index 0000000..73440d1
--- /dev/null
+++ b/spellcheck.yaml
@@ -0,0 +1,66 @@
+matrix:
+  - name: markdown
+    sources:
+      - '**/*.md|!node_modules/**'
+    aspell:
+      lang: en
+      d: en_US
+      ignore-case: true
+      run-together: true
+      run-together-min: 2
+      run-together-limit: 256
+    dictionary:
+      wordlists:
+        - wordlist.txt
+      encoding: utf-8
+    pipeline:
+    - pyspelling.filters.markdown:
+    - pyspelling.filters.html:
+        comments: false
+        ignores:
+        - code
+        - pre
+  - name: schemas
+    sources:
+      - 'keymanager-oapi.yaml'
+      - 'types/**/*.yaml'
+      - 'apis/**/*.yaml'
+    aspell:
+      lang: en
+      d: en_US
+      ignore-case: true
+      run-together: true
+      run-together-min: 2
+      run-together-limit: 256
+    dictionary:
+      wordlists:
+        - wordlist.txt
+      encoding: utf-8
+    pipeline:
+    - pyspelling.filters.url:
+    - pyspelling.filters.context:
+        context_visible_first: true
+        delimiters:
+          - open: ''
+            content: 0x[a-fA-F0-9]+
+            close: ''
+    - pyspelling.filters.context:
+        context_visible_first: true
+        delimiters:
+          - open: 'operationId:.*'
+            close: '$'
+    - pyspelling.filters.context:
+        context_visible_first: true
+        delimiters:
+          - open: 'example:.*'
+            close: '$'
+    - pyspelling.filters.context:
+        context_visible_first: true
+        delimiters:
+          - open: 'title:.*'
+            close: '$'
+    - pyspelling.filters.context:
+        context_visible_first: true
+        delimiters:
+          - open: 'data:.*'
+            close: '$'
diff --git a/wordlist.txt b/wordlist.txt
new file mode 100644
index 0000000..a7c870e
--- /dev/null
+++ b/wordlist.txt
@@ -0,0 +1,20 @@
+eth
+JSON
+EIP
+https
+prysmaticlabs
+UI
+RPC
+natively
+VC
+Teku
+NodeJs
+npm
+dev
+cli
+redocly
+pre
+uint
+VPN
+BLS
+oapi