Add a changelog entry

sparse_strips/vello_cpu/CHANGELOG.md

diff --git a/sparse_strips/vello_cpu/CHANGELOG.md b/sparse_strips/vello_cpu/CHANGELOG.md
index 9d6a4be..2376775 100644
--- a/sparse_strips/vello_cpu/CHANGELOG.md
+++ b/sparse_strips/vello_cpu/CHANGELOG.md
@@ -12,6 +12,11 @@
 
 This release has an [MSRV][] of 1.88.
 
+### Changed
+- The API for rendering into a pixmap. The methods `render_to_pixmap` and
+  `composite_to_pixmap_at_offset` have been replaced with a single unified 
+  `render` method that takes additional parameters for tweaking the behavior. ([#1665][] by [@LaurenzV][])
+
 ## [0.0.9][] - 2026-05-30
 
 This release has an [MSRV][] of 1.88.
@@ -206,6 +211,7 @@
 [#1616]: https://github.com/linebender/vello/pull/1616
 [#1628]: https://github.com/linebender/vello/pull/1628
 [#1653]: https://github.com/linebender/vello/pull/1653
+[#1665]: https://github.com/linebender/vello/pull/1665
 [#1668]: https://github.com/linebender/vello/pull/1668
 [#1673]: https://github.com/linebender/vello/pull/1673