### 1.6.4.1
- Replace dependency package *data-default-class* with *data-default*.
- Refactor function *handleStatsExceptions*.
### 1.6.4
- Drop support for *time < 1.9.1*.
- Drop dependency on packages *vector* and *safe*.
- Replace *Control.Arrow* with *Data.Bifunctor*.
- **Note**: due to a [bug](https://gitlab.haskell.org/ghc/ghc/-/issues/26136)
introduced in GHC major versions *9.12*, *9.10*, and *9.8*, the code won't
compile with GHC *9.12.2*, *9.12.1* (fixed in *9.12.4*), *9.10.2* (fixed in
*9.10.3*), *9.8.4* (not fixed, compile with *9.8.2*).
### 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.