### 1.6.3

- Added ability to tweak CA store when running health checks over *https*.

### 1.6.2

- Fixed validation of server certificates by name (versions *1.6* and *1.6.1*
  had no chance to work with *https* as it was expected because of this bug).
- *New feature*: take the host name from the bound server name in the Nginx
  upstream configuration when the service key ends with a slash and this is the
  only slash inside it.
  + **Breaking changes**: internal Haskell/C interoperability protocol has
    changed which requires rebuilding of the C plugin.

### 1.6.1

- Extract host names from service keys and use them in header *Host* and for
  validation of server certificates in health checks over *https*.
- Conditional building of the *https* support controlled by Cabal flag
  *HealthcheckHttps*.

### 1.6

- Added support for *https* transport protocol.
  + **Breaking changes**: endpoint configuration gets a new field *epProto*,
    see updated examples in the project's *README.md*.
- A new approach to building custom handlers with Cabal Nix-style local builds
  and [*ngx-export-distribution*](https://hackage.haskell.org/package/ngx-export-distribution),
  see details in the project's *simple/*, *periodic/*, and *prometheus/*
  subdirectories.
- Improvement: using a single http manager for all service keys.

### 1.5

- Refactoring of type imports.