In 4.3.0

* Erlang 22 compatibility is tested; support for Erlang 17 was dropped. Last
  version that supports Erlang 17 is 4.2.1 (#195)
* Fixed some corner-case bug in streaming replication (#181)
* It's now possible to set-up JSON encoder/decoder callback for json/jsonb
  datatypes (#197)
* Performance micro-optimizations on hot paths (#177)
* Use PostgreSQL 10 for Travis tests (#195)
* Improved connection error handling (#183)
* TLS certificates used in tests had expired (epgsql project is more than
  10 years old!), so, new ones were created (#187)
* Some typespecs fixed
This tag has no release notes.