Closes #397.

Support custom state for event handlers

Allow event handlers to manage custom in-memory process state which can be read and updated in t...

Allow event store adapter-specific subscription options to be optionally passed on if supported ...

Adds a new callback that allows an optional Keyword list with adapter-specific options when subs...

Add `hibernate_after` option to application config

The `hibernate_after` option is used by the Commanded application's top-level supervisor when st...

Use latest Elixir v1.10.4 in `.tool-versions` and GitHub Actions.

Allow `GenServer` start options to be provided when starting event handlers and process managers

Support `:timeout`, `:debug`, `:spawn_opt`, and `:hibernate_after` GenServer options.

Hibernate subscription process after inactivity

Add the `:subscription_hibernate_after` event store config setting used by subscription processe...

Extract projection name from event metadata instead of using a compile-time constant.

Include `application` and `handler_name` as additional event handler metadata

Include the associated Commanded Application and event handler name as additional system provide...

Remove Travis CI config.

Add `init/1` callback function to event handlers and process managers

Allow event handlers and process managers to define an `init/1` callback function. This is calle...

Remove distributed registry

The distributed registry was an optimisation for distributed Erlang deployments where only a sin...

Use a transaction around database operations when appending or linking events

Fixes appending events to a stream concurrently with `:any_version` returning an `{:error, :wron...

Migrate CI to GitHub Actions

Add GitHub Actions workflow to run tests using Postgres 12.

Extend `mix event_store.migrations` task to output migration status for all configured event sto...

Introduce migrations task to list migration status

Fix multi aggregate

Enrich metadata in upcaster protocol with fields from recorded event struct.

Typo

If executions in the pipeline also returned a multi, previous pending events were being discarded

Capture exception on Process Manager apply/2 and call error/3 callback

Doc Fix - Add missing comma (2)

Doc Fix - Add missing comma

Delete event stream

- Soft delete event stream.
- Hard delete event stream.
- Subscriptions to a deleted stream won'...

Use database lock to prevent migrations from running concurrently

Use Postgres advisory lock when migrating an event store database to ensure only a single migrat...

Found another missing comma

Seems like there should be a comma here

Use event's stream version when appending events to a stream

To ensure duplicate stream versions are rejected by violation of unique index on `stream_events`...