Thread by @AdrianDobrita

Through rapid iterations & support from our Validators, we've reached a stable version of the public testnet with Smart Contracts, ESDT, meta transactions & smart accounts. Our most complex mainnet upgrade to date will start a new phase for @ElrondNetwork
Weekly #elrondtech 👇

1/ The new Arwen WASM VM version brings Ahead of Time Compiling which removes the need to compile a SC on each execution. This, and other optimizations to our overall gas model, allowed us to reduce gas usage for SC calls.

2/ The Application Binary Interface (ABI) for Smart Contracts interaction is getting a formal specification. SC ABIs can now be automatically generated from the Rust framework and will be consumed in erdjs via Interactor objects.

3/ We have performed several resets & upgrades of our public testnet, with the incredible support of our Validators community. This allowed us to fix a number of bugs and add the latest improvements in our mainnet upgrade release candidate.

4/ Other notable achievements:
- Refactored economics data provider & made one common implementation of all gas usage & tx fee computation
- Continued working on the outport feature in order to have a new driver that supports communication over WebSockets

5/ - New erdpy and IDE releases. Improved support for running snippets
- Refactor of the shard processor, added unit and integration tests for relayed transactions with smart contracts and builtin functions
- Continued the work to merge elrond-core-js functionality into erdjs

6/ - Implemented a gas price modifier for used gas on top of move balance, which will make ESDT transfers closer in price to a move balance operation
- Added invariants for all created smart contract results

7/ - Added a closing mechanism for hardfork storers needed for the soft restart feature
- Made a fix for Arwen's stacked execution mechanism, to ensure the correctness of the asynchronous infrastructure

8/ - Further simplified & cleaned the code for the async infrastructure, on which the Promises API is built
- Refactored the transactions' generation testing scenario that generates accounts, aligned the rest of the scenarios in order to stress the network with a higher precision

9/ - Working on automated test scenarios to ensure integrity and stability
- Added invariants to gas consumed in smart contract, ESDT & meta transactions
- Added several safeMath functions instead of the basic ones which could generate an overflow
- Updated the SC templates

10/ - ESDT Rest API endpoints testing and documentation
- Arranged the filenames in the config holder in the soft-restart feature branch
- Added checks for overflows in the Arwen VM
- Further investigation for the wasmer breakpoints on MacOS
- Working on the bridge SC

11/ - Fixed 2 issues when synchronizing data tries that will improve the start-in-epoch bootstrap process
- Fixed issues raised by several linters for the Arwen VM
- Tested different branches to ensure maximum quality and stability

12/ - Fixed issue with the API route /address/:addr/transactions
- Fixed a bug for the phase 3 economics, where metachain nodes were getting stuck due to working on a dirty user accounts trie

13/ - Fixed a Phase 3 staking bug where a missing condition triggered a protection mechanism against unqualified staked nodes, which was leading to metachain consensus halt
- Fixed a few bugs within the new features, ESDT, meta TXs & SC calling another SC - inconsistent gas usage

14/ - Fixed a uint64 overflow issue when issuing an ESDT token, this would have generated a lot of rewards for validators
- Finished sync from genesis feature, running conformity tests

15/ "Stay Hungry Stay Foolish" and tune in soon for more of the #Elrondtech which powers the
@ElrondNetwork ecosystem. Check our progress & get involved 👇
github.com/ElrondNetwork