Changelog not updated since 1.5.0

[Stormheg]

The last entry to the changelog was for 1.5.0

Looking at the tags for this repository, the following entries are missing from the changelog.

• 1.6.0
• 1.6.1.
• 1.6.2
• 1.6.3
• 1.6.4
• 1.6.5

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An update-to-date changelog is a helpful aid when upgrading a package in your own project.