diff --git a/.circleci/config.yml b/.circleci/config.yml
index 3af43c8719d..1b0ad1f446a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -7,7 +7,33 @@ executors:
   node_executor:
     docker:
       - image: circleci/node:12.9.0-stretch
+  shell_executor:
+    docker:
+      - image: circleci/buildpack-deps:buster-scm
 jobs:
+  dco:
+    executor: shell_executor
+    steps:
+      - checkout
+      - run:
+          name: check
+          command: |
+            status=0
+            while IFS= read -r -a line; do
+              my_array+=( "$line" )
+              done < <( git branch -r | grep -v origin/HEAD )
+            for branch in "${my_array[@]}"
+            do
+              branch=$(echo "$branch" | xargs)
+              echo "Checking commits in branch $branch for commits missing DCO..."
+              while read -r results; do
+                status=1
+                commit_hash="$(echo "$results" | cut -d' ' -f1)"
+                >&2 echo "$commit_hash is missing Signed-off-by line."
+              done < <(git log "$branch" --no-merges --pretty="%H %ae" --grep 'Signed-off-by' --invert-grep -- )
+            done
+            exit $status
+
   build:
     executor: python_executor
     steps:
@@ -95,6 +121,7 @@ workflows:
   version: 2
   default:
     jobs:
+      - dco
       - build
       - vale
       - markdownlint
diff --git a/CLA.md b/CLA.md
deleted file mode 100644
index 31b0c98dbd9..00000000000
--- a/CLA.md
+++ /dev/null
@@ -1,19 +0,0 @@
-Sign the CLA
-=============
-
-This page is the step-by-step guide to signing the Consensys AG
-Individual Contributor License Agreement. 
-
-1. First and foremost, read [the current version of the CLA]. 
-   It is written to be as close to plain English as possible.
-
-2. Make an account on [GitHub] if you don't already have one.
-
-3. After creating your first pull request, you will see a merge
-   pre-requisite requiring to you read and sign the CLA.
-
-If you have any questions, you can reach us on [Besu chat].
- 
-[Besu chat]: https://chat.hyperledger.org/channel/besu
-[GitHub]: https://github.com/
-[the current version of the CLA]: https://gist.github.com/rojotek/978b48a5e8b68836856a8961d6887992
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index cca2c813dd1..1c4c080e26b 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -182,7 +182,7 @@ The process described here has several goals:
 
 Please follow these steps to have your contribution considered by the approvers:
 
-1. Complete the CLA, as described in [CLA.md].
+1. Ensure all commits have a Sign-off for DCO, as described in [DCO.md].
 2. Follow all instructions in [PULL-REQUEST-TEMPLATE.md](.github/pull_request_template.md).
 4. Follow the [Style Guides](#documentation-style-guide).
 5. After you submit your pull request, verify that all [status checks](https://help.github.com/articles/about-status-checks/) 
@@ -219,6 +219,6 @@ in this guide.
 
 [Hyperledger Besu chat]: https://chat.hyperledger.org/channel/besu
 [Hyperledger Besu documentation]: https://besu.hyperledger.org/
-[CLA.md]: ./CLA.md
+[DCO.md]: ./DCO.md
 [Code Reviews]: ./docs/community/code-reviews.md
-[MkDocs]: https://www.mkdocs.org/
\ No newline at end of file
+[MkDocs]: https://www.mkdocs.org/
diff --git a/DCO.md b/DCO.md
new file mode 100644
index 00000000000..a10deeec06a
--- /dev/null
+++ b/DCO.md
@@ -0,0 +1,9 @@
+DCO
+===
+
+As per section 13.a of the [Hyperledger Charter](https://www.hyperledger.org/about/charter) all code submitted to the Hyperledger Foundation needs to have a [Developer Certificate of Origin](http://developercertificate.org/) (DCO) sign-off.
+
+The sign off needs to be using your legal name, not a pseudonym.  Git has a built-in mechanism to allow this with the `-s` or `--signoff` argument to `git commit` command, providing your `user.name` and `user.email` have been setup correctly.
+
+If you have any questions, you can reach us on [Besu chat].
+[Besu chat]: https://chat.hyperledger.org/channel/besu
diff --git a/MKDOCS-MARKDOWN-GUIDE.md b/MKDOCS-MARKDOWN-GUIDE.md
index 209070b7a54..c998d70ee8d 100644
--- a/MKDOCS-MARKDOWN-GUIDE.md
+++ b/MKDOCS-MARKDOWN-GUIDE.md
@@ -333,7 +333,7 @@ enables displaying a list as a checklist.
 
 For writing code examples inside the documentation, refer to the developer style guides:
 
-- Java : refer to Hyperledger Besu [coding convention](https://github.com/hyperledger/besus/blob/master/CODING-CONVENTIONS.md).
+- Java : refer to Hyperledger Besu [coding convention](https://github.com/hyperledger/besu/blob/master/CODING-CONVENTIONS.md).
 - JSON : use https://jsonformatter.curiousconcept.com/ to format your JSON code.
 - TOML : we follow version 0.5.0 language definition.
 - JavaScript : see [Google JavaScript Style Guide](https://google.github.io/styleguide/jsguide.html).
diff --git a/docs/Concepts/Privacy/Privacy-Overview.md b/docs/Concepts/Privacy/Privacy-Overview.md
index 7e29bc9b93d..3ac6ad33bf4 100644
--- a/docs/Concepts/Privacy/Privacy-Overview.md
+++ b/docs/Concepts/Privacy/Privacy-Overview.md
@@ -8,7 +8,10 @@ Other participants cannot access the transaction content or list of participants
 
 !!! important
     For production systems requiring private transactions, we recommend using a network 
-    with a consensus mechanism supporting transaction finality. For example, [IBFT 2.0](../../HowTo/Configure-Besu/Consensus-Protocols/IBFT.md). All private transaction participants must be online for a private transaction to be successfully distributed. If any participants are offline when the private transaction is submitted, the transaction is not attempted and must be resubmitted.
+    with a consensus mechanism supporting transaction finality. For example, [IBFT 2.0](../../HowTo/Configure/Consensus-Protocols/IBFT.md).
+    All private transaction participants must be online for a private transaction to be successfully distributed.
+    If any participants are offline when the private transaction is submitted, the transaction is
+    not attempted and must be resubmitted.
 
 ## Private Transaction Manager
 
diff --git a/docs/HowTo/Deploy/Monitoring-Performance.md b/docs/HowTo/Deploy/Monitoring-Performance.md
index 3de7442059a..36dbcf257eb 100644
--- a/docs/HowTo/Deploy/Monitoring-Performance.md
+++ b/docs/HowTo/Deploy/Monitoring-Performance.md
@@ -18,6 +18,8 @@ To specify the host and port on which Prometheus accesses Besu, use the [`--metr
 [`--metrics-port`](../../Reference/CLI/CLI-Syntax.md#metrics-port) options. 
 The default host and port are 127.0.0.1 and 9545.
 
+Prometheus requires 3MB of space per node per hour for metrics, with a `scrape_interval` of 15s.
+
 To use Prometheus with Besu, install the [prometheus main component](https://prometheus.io/download/). On MacOS, install with [Homebrew](https://formulae.brew.sh/formula/prometheus): 
 
  ```
diff --git a/docs/HowTo/Get-Started/Run-Docker-Image.md b/docs/HowTo/Get-Started/Run-Docker-Image.md
index e9093ca9170..755bdaee326 100644
--- a/docs/HowTo/Get-Started/Run-Docker-Image.md
+++ b/docs/HowTo/Get-Started/Run-Docker-Image.md
@@ -24,12 +24,12 @@ To run a Besu node in a container connected to the Ethereum mainnet:
 docker run hyperledger/besu:latest
 ```
 
-```bash tab="{{ versions.stable }}"
-docker run hyperledger/besu:{{ versions.stable }}
-```
-
 !!! note
-    `latest` runs the latest cached version. To pull the latest version, use `docker pull hyperledger/besu:latest`. 
+    Available tags for the image are listed at https://hub.docker.com/r/hyperledger/besu/tags. 
+
+   If you previously pulled `latest`, Docker runs the cached version.
+
+    To ensure your image is up to date, pull the `latest` version again using `docker pull hyperledger/besu:latest`. 
  
 ## Exposing Ports
 
diff --git a/docs/HowTo/Interact/APIs/GraphQL.md b/docs/HowTo/Interact/APIs/GraphQL.md
index 6b2e0cc721f..dece88da28b 100644
--- a/docs/HowTo/Interact/APIs/GraphQL.md
+++ b/docs/HowTo/Interact/APIs/GraphQL.md
@@ -6,7 +6,7 @@ description: How to access the Hyperledger Besu API using GraphQL
 GraphQL can reduce the overhead needed for common queries. For example, instead of querying each receipt in a
 block, GraphQL can obtain the same result with a single query for the entire block. 
 
-The GraphQL implementation for Ethereum is described in the [schema](https://github.com/hyperledger/besu/blob/master/ethereum/graphql/src/main/resources/schema.graphqls). 
+The GraphQL implementation for Ethereum is described in the [schema](https://github.com/hyperledger/besu/blob/master/ethereum/api/src/main/resources/schema.graphqls). 
 The GraphQL service is enabled using the [command line options](API.md#enabling-api-access).
 
 !!! note
diff --git a/docs/Reference/API-Methods.md b/docs/Reference/API-Methods.md
index 8f6c5819b46..380a2fcecad 100644
--- a/docs/Reference/API-Methods.md
+++ b/docs/Reference/API-Methods.md
@@ -268,7 +268,7 @@ None
     {
       "jsonrpc" : "2.0",
       "id" : 53,
-      "result" : "besu/{{ versions.stable }}"
+      "result" : "besu/<version>"
     }
     ```
 
@@ -479,7 +479,7 @@ None
 
 !!! note
     Methods with an equivalent [GraphQL](../HowTo/Interact/APIs/GraphQL.md) query include a GraphQL request and result in the method example.
-    The parameter and result descriptions apply to the JSON-RPC requests. The GraphQL specification is defined in the [schema](https://github.com/hyperledger/besu/blob/master/ethereum/graphql/src/main/resources/schema.graphqls).  
+    The parameter and result descriptions apply to the JSON-RPC requests. The GraphQL specification is defined in the [schema](https://github.com/hyperledger/besu/blob/master/ethereum/api/src/main/resources/schema.graphqls).  
 
 ### eth_syncing
 
diff --git a/docs/Tutorials/Quickstarts/Privacy-Quickstart.md b/docs/Tutorials/Quickstarts/Privacy-Quickstart.md
index fece3898226..cffff67de42 100644
--- a/docs/Tutorials/Quickstarts/Privacy-Quickstart.md
+++ b/docs/Tutorials/Quickstarts/Privacy-Quickstart.md
@@ -37,15 +37,14 @@ To run this tutorial, you must have the following installed:
 
 ## Clone Besu Quickstart Source Code
 
-Clone the repository from the `besu-quickstart` repository where `<version>` is replaced with the latest version (`{{ versions.quickstart }}`). 
+Clone the repository from the `besu-quickstart` repository. 
 
-```bash tab="Command"
-git clone --branch <version> https://github.com/PegaSysEng/besu-quickstart.git
+```bash tab="Linux/MacOS"
+git clone https://github.com/PegaSysEng/besu-quickstart.git
 ```
 
-```bash tab="Example"
-git clone --branch {{ versions.quickstart }} https://github.com/PegaSysEng/besu-quickstart.git
-```
+!!!note
+    Download a specific release at https://github.com/PegaSysEng/besu-quickstart/releases. 
 
 ## Clone EEAJS Libraries 
 
diff --git a/docs/Tutorials/Quickstarts/Private-Network-Quickstart.md b/docs/Tutorials/Quickstarts/Private-Network-Quickstart.md
index c9a6ca9d3c6..7c414c76a1f 100644
--- a/docs/Tutorials/Quickstarts/Private-Network-Quickstart.md
+++ b/docs/Tutorials/Quickstarts/Private-Network-Quickstart.md
@@ -32,12 +32,15 @@ the MetaMask plug-in installed. This tutorial uses screenshots from Brave.
 
 ## Clone Besu Quickstart Source Code
 
-Clone the repository from the `besu-quickstart` with the version matching Besu version, currently `{{ versions.quickstart }}`:
+Clone the repository from the `besu-quickstart` repository:
 
 ```bash tab="Linux/MacOS"
-git clone --branch {{ versions.quickstart }} https://github.com/PegaSysEng/besu-quickstart.git
+git clone https://github.com/PegaSysEng/besu-quickstart.git
 ```
 
+!!!note
+    Download a specific release at https://github.com/PegaSysEng/besu-quickstart/releases.
+
 ## Build Docker Images and Start Services and Network
  
 This tutorial uses [Docker Compose](https://docs.docker.com/compose/) to assemble the images and 
@@ -55,7 +58,7 @@ When the process ends, it lists the running services:
 !!! example "Docker-compose services list example"
     ```log
     *************************************
-    Besu Quickstart {{ versions.quickstart }}
+    Besu Quickstart <version>
     *************************************
     List endpoints and services
     ----------------------------------
@@ -166,7 +169,7 @@ The result specifies the client version:
 {
    "jsonrpc" : "2.0",
    "id" : 1,
-   "result" : "besu/{{ versions.stable }}"
+   "result" : "besu/<version number>"
 }
 ```
 Here we simply query the version of the Besu node, which confirms the node is running.
diff --git a/docs/custom_theme/favicon.ico b/docs/custom_theme/favicon.ico
index f2883bad61b..d8116ecae37 100644
Binary files a/docs/custom_theme/favicon.ico and b/docs/custom_theme/favicon.ico differ
diff --git a/mkdocs.yml b/mkdocs.yml
index 28a1bfa7328..4f09c6d6dcc 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -20,9 +20,6 @@ copyright: Hyperledger Besu and its documentation are licensed under Apache 2.0
 #extra project info and template customisation
 extra:
   doc_site_edit_url: https://github.com/hyperledger/besu-docs/
-  versions:
-    stable: &stable_version 1.3.0
-    quickstart: *stable_version
   latest_version_warning:
     url_contains: /latest/
     text: 'You are reading Hyperledger Besu development version documentation and