add to changelog

[skip ci]

Author: cderv

news/changelog-1.7.md

@@ -108,6 +108,10 @@ All changes included in 1.7:
 - ([#11664](https://github.com/quarto-dev/quarto-cli/issues/11664)): `lipsum` shortcode is no longer randomly generated by default, use `{{< lipsum random=true >}}` to restore randomness.
 - ([#11379](https://github.com/quarto-dev/quarto-cli/issues/11379)): Add `version` shortcode to display the current Quarto version.
 
+## Quarto Lua API
+
+- ([#12299](https://github.com/quarto-dev/quarto-cli/issues/12299)): `quarto.doc.pdf_engine()` now correctly returns the PDF engine used for the document. `quarto.doc.cite_method()` now returns `nil` if no citation method will be used (i.e. no references is the document set).
+
 ## Engines
 
 ### `julia`