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 # Changelog
 All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [unreleased]
 ### Changed
-  * Updated with PDK 1.18.0
+* Change parameter `hitch::frontend` to permit an array of strings in
+  addition to a single string
+
+### Added
+* Add parameter `hitch::workers`
+* Add parameter `hitch::prefer_server_ciphers`
+* Add parameter `hitch::alpn_protos`
+* Add parameter `hitch::tls_protos`
 
 ## [0.1.5] - 2019-10-22
 ### Fixed
 - Fix generation of DH parameters (again).
 
 ### Added
 - Add manage_repo parameter. Defaults to true on RedHat OS family,
   which will install the "epel-repo" package.
 
 ### Changed
 - Update OS support metadata. Debian 9-10 and RedHat 7-8.
 - Updated with PDK 1.14.0
 - Depends on Puppet 4.10, puppetlabs/stdlib 4.12.0
 - Module defaults are now in Hiera data
 - Module parameters use Types for validation
 
 ## [0.1.4] - 2015-12-18
 ### Fixed
 - bugfix: make sure intermediate ca certificates are correctly placed in bundle
 - bugfix: make sure dh parameters are created
 - bugfix: notify service if pem files change
 
 ## [0.1.3] - 2015-12-18
 ### Fixed
 - bugfix: using multiple pem-files failed.  Tests added.
 
 ## [0.1.2] - 2015-12-18
 ### Fixed
 - relax too-strict validation of strings containing keys and certificates
 
 ## [0.1.1] - 2015-12-11
 ### Fixed
 - fix versioned dependency on puppetlabs-stdlib in metadata
 - fix documentation errors and nits
 
 ## [0.1.0] - 2015-12-11
 ### Added
 - initial release
 
 [unreleased]: https://github.com/ssm/ssm-hitch/compare/0.1.5...main
 [0.1.5]: https://github.com/ssm/ssm-hitch/compare/0.1.4...0.1.5
 [0.1.4]: https://github.com/ssm/ssm-hitch/compare/0.1.3...0.1.4
 [0.1.3]: https://github.com/ssm/ssm-hitch/compare/0.1.2...0.1.3
 [0.1.2]: https://github.com/ssm/ssm-hitch/compare/0.1.1...0.1.2
 [0.1.1]: https://github.com/ssm/ssm-hitch/compare/0.1.0...0.1.1
 [0.1.0]: https://github.com/ssm/ssm-hitch/commits/0.1.0