Improvements

• Updated dependencies
• Internal refactorings and optimizations
• Improved tests

Bug Fixes

• Fixed potential bugs for governance ( system params )
• Fixed potential bugs for contract ( syste.time, system.date )

Tools

Improvements

• Updated protobuf and dependencies.
• Optimized logging
• Improved integration tests

Bug Fixes

• Fixed hardfork on transaction timeout
• Fixed potential leak in lua vm
• Fixed typos

Tools

Bug Fixes

• Fix synchronization issues on some reorganizations.

Improvements

• Improved some unit tests about contract vm

Improvements

• Remove unnecessary mutexes during contract execution.
• Change package name to follow golang versioning policy.
• Improve logs in exceptional situations

Bug Fixes

Tools

aergoluac

• Fix tiny bug

Improvements

• Updated golang and dependencies.
• Improved unit tests and integrations tests

Bug Fixes

• Fixed hardfork version on child Lua state
• Fixed typos

Tools

brick

• Added hardfork command

Improvements

• Internal lint and refactoring

Bug Fixes

• Fix bugs on testmode

Tools

aergocli

• Added support deploy payload in hexadecimals
• Added -nonce flag to contract deploy.

brick

• Added timestamp command
• Added the ability for the check command to also check the expected result
• Fix bugs

Misc

• Fix broken CI/CD integrations - migrate to Github Actions from Travis-CI

Bug Fixes

• Fix synchronization issues in V2 blocks.

Bug Fixes

• Fix possible freezing under gas shortage condition

Breaking Changes

• Increase call depth limit from 5 to 64, allowing more flexible DApp development (applied from the block height 111499715).

Improvements

• Prevent octal number from being used as a contract parameter.
• Store the same contract code just once.
• Now Lua VM stops ongoing TX execution upon block generation timeout.

Bug Fixes

• Fix possible indeterministic gas estimation.
• Fix possible state mismatch between nodes resulting from JSON arguments.
• Fix RPC stream freezing issue.

Breaking Changes

• Update BadgerDB to v3 (previously v1.6) to resolve long boot time (over 1 hour on a typical 4 core machine).

Data Migration Instructions

The old data is not compatible with this version. For correct operation, the data of the state and chain subdirectories in the Aergo data dir must be migrated. The procedure is as it follows.

1. Shutdown Aergo.

2. Install the badger v1.6.

$ go get github.com/dgraph-io/badger/v1.6

3. Perform backup for each DB diretory.

$ badger backup --dir <state or chain> -f <backup file>

4. Install the badger v3

$ go get github.com/dgraph-io/badger/v3

5. Restore each data directory (for safety, don't forget to rename the old directories).

$ badger restore --dir <chain or state> -f <backup files>

6. Now, you can boot Aergo from the migrated data.

Please notice two different versions of badger are used for backup (v1.6) and restore (v3).

Bug Fixes

• Revert the commit 32a8a4b, which may cause blockchain fork between a block producer and all the other nodes.