Release notes

This release introduces an incompatible networking change in bundler rates propagation and is, therefore, a mandatory update for all Ardor testnet nodes.

Improvements in bundler rates handling and APIs:

The GetBundlerRates API now also returns the bundler account and the remaining fee limit for each bundler as currentFeeLimitFQT.

The new GetAllBundlerRates API returns all bundler rates known to the node, for all child chains, subject to optional minBundlerBalanceFXT limit on the bundler effective Ardor balance.

The new BlacklistBundler API allows manual blacklisting of bundler accounts. Rates advertised by such accounts will not be added to the local list of known rates each node maintains. Blacklisting of bundler accounts is also possible using the new nxt.blacklistedBundlerAccounts property.

Bundler rates are now broadcasted every 30 min instead of once an hour.

The new nxt.minBundlerFeeLimitFXT property allows skipping bundler rates that are announced by bundlers with lower remaining current fee limit, default 10 Ardor.

Added peer authentication and encryption framework for the peer networking, to be used for permissioned blockchains.

Added Bundle action for child chain transactions in the UI. Added visual representation of transaction bundling and confirmation status.

Client UI and peer networking bugfixes and improvements.

Updated H2 to version 1.4.194.

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Source: https://nxtforum.org/nrs-releases/ardor-v2-0-2e/