Alex Ostrovski

## What ❔ Exports Postgres table sizes as gauge metrics. ## Why ❔ Useful to monitor state growth, especially once we have state pruning, and/or have access to metrics from...

## What ❔ - Checks the recipient contract (should be equal to the main L1 contract address) and the Solidity function selector (should correspond to `commitBlocks` / `commitBatches` selector) in...

## What ❔ - Fixes `pendingTransactions` subscription notifier logic on EN. This logic implicitly relies on the "received at" timestamp of transactions being causally ordered (i.e., transactions persisted into the...

## What ❔ - API server now doesn't (gracefully) shut down immediately after receiving a signal. Instead, it waits for some time (until the inbound traffic reaches zero), and then...

## What ❔ Adds a snapshot version to snapshot metadata returned by the corresponding endpoint. If the version of the returned snapshot is not supported by the EN, it immediately...

## What ❔ - Splits off miniblock and L1 batch persistence from `StateKeeperIO` into a separate trait. - Moves tracking current miniblock / L1 batch number from `StateKeeperIO` to the...

Describe changes in transaction execution brought by exonum/exonum#385.

The service interoperability fragment was removed from roadmap in #65. Now it needs to be restored with more details.

Contributor license agreements are used to more precisely define contribution terms for developers. Some examples: - [Apache Foundation](http://apache.org/licenses/icla.pdf) - [Eclipse](https://eclipse.org/legal/ECA.php) - [JS Foundation](https://cla.js.foundation/) - [GitHub](https://cla.github.com/) Correspondingly, they could be useful...

The *Requests* article was merged into `master` in #35, but some questions were left unanswered: - How do timeouts in requests influence the theoretical properties of the consensus algorithm, given...