About this release

This is a maintenance release. It:

• Introduces additional Garbage Collection of transactions, based on new transaction {origin/account, nonce} cache.

• Adds new metrics to monitor mempool GC - ae,epoch,aecore,tx_pool,gced and ae,epoch,aecore,tx_pool,origin_gced.

• Adds channels.update.new_contract_from_onchain method to channel websocket API.

• Exposes setting minimum_depth in WebSocket connection creation in State Channels WebSocket API

• Unifies State Channel's WebSocket API timeouts: open fallbacks to idle.

• Improves the stability of the State Channels WebSocket API.

• Deprecates the log field in the contract object in the user HTTP API.

• Adds beta support for new database backend leveled.

  • Enable by setting the configuration chain->db_backend in aeternity.yaml to leveled.

  • When first enabling a new database backend you must rename your database folder, or delete it, and resynchronize the chain.

This release is backward compatible with previous v2.2.* releases.

Please join the mainnet by following the instructions below, and let us know if you have any problems by opening a ticket. Troubleshooting of common issues is documented in the wiki.

The instructions below describe:

• How to retrieve the released software for running a node;

• How to install a node;

• How to join the mainnet.

• How to join the testnet.

Retrieve the software for running a node

You can run a node by either:

• Installing the published release binary corresponding to your platform; or
• Running the published Docker image aeternity/aeternity; or
• Building a release binary from source.

The instructions for configuring the node using the Docker image are in the dedicated separate document.

The node user API is documented:

• HTTP API endpoints are specified online in swagger.yaml;

  • A JSON version of the same specification is located in the node at path lib/aehttp-*/priv/swagger.json (you will need to amend the wildcard * placeholder in the path with the version).

  • The JSON version can be obtained from a running node using the endpoint /api.

  • An interactive visualization of the same specification is available online.
• WebSocket API endpoints are specified online;
• The intended usage of the user API (HTTP and WebSocket) is documented online.

Install node

The instructions for installing a node using a release binary are in the dedicated separate document.

For installation of a node using the Docker image, please refer to its documentation online.

Join the mainnet

Mainnet seed nodes

The release package comes preconfigured with seed nodes. Here is example subset of the seed nodes:

• aenode://pp_2L8A5vSjnkLtfFNpJNgP9HbmGLD7ZAGFxoof47N8L4yyLAyyMi@18.136.37.63:3015

• aenode://pp_2gPZjuPnJnTVEbrB9Qgv7f4MdhM4Jh6PD22mB2iBA1g7FRvHTk@52.220.198.72:3015

• aenode://[email protected]:3015

• aenode://pp_2mwr9ikcyUDUWTeTQqdu8WJeQs845nYPPqjafjcGcRWUx4p85P@3.17.30.101:3015

• aenode://pp_2CAJwwmM2ZVBHYFB6na1M17roQNuRi98k6WPFcoBMfUXvsezVU@13.58.177.66:3015

• aenode://pp_7N7dkCbg39MYzQv3vCrmjVNfy6QkoVmJe3VtiZ3HRncvTWAAX@13.53.114.199:3015

• aenode://pp_22FndjTkMMXZ5gunCTUyeMPbgoL53smqpM4m1Jz5fVuJmPXm24@13.53.149.181:3015

• aenode://pp_Xgsqi4hYAjXn9BmrU4DXWT7jURy2GoBPmrHfiCoDVd3UPQYcU@13.53.164.121:3015

• aenode://[email protected]:3015

Inspect the mainnet

Here are example nodes that can be used to inspect current top block and see information about e.g. height or target:

• http://18.136.37.63:3013/v2/blocks/top

• http://52.220.198.72:3013/v2/blocks/top

• http://13.53.114.199:3013/v2/blocks/top

• http://13.53.149.181:3013/v2/blocks/top

Join the testnet

This section describes how to run a node as part of the testnet - the public test network of nodes - by using the release binary.

For running a node as part of the testnet by using the Docker image, please consult its documentation in addition to this section.

Testnet seed nodes

In order to join testnet reconfigure seed nodes in the release package:

• aenode://pp_QU9CvhAQH56a2kA15tCnWPRJ2srMJW8ZmfbbFTAy7eG4o16Bf@52.10.46.160:3015

• aenode://pp_27xmgQ4N1E3QwHyoutLtZsHW5DSW4zneQJ3CxT5JbUejxtFuAu@13.250.162.250:3015

• aenode://pp_DMLqy7Zuhoxe2FzpydyQTgwCJ52wouzxtHWsPGo51XDcxc5c8@13.53.161.215:3015

Inspect the testnet

The core nodes of the public test network are accessible from the Internet.

Information, e.g. height, of the top block of the longest chain as seen by these core nodes of the testnet can be obtained by opening in the browser any of the following URLs:

• http://52.10.46.160:3013/v2/blocks/top

• http://13.250.162.250:3013/v2/blocks/top

• http://13.53.161.215:3013/v2/blocks/top

Setup your node

Setting up your node consists of:

• Configuring your node - see instructions in the dedicated separate document;
• Starting your node and verifying it works as expected - see instructions in the dedicated separate document.