diff --git a/docs/changelog.qmd b/docs/changelog.qmd
index c5ad6760f..ac5903765 100644
--- a/docs/changelog.qmd
+++ b/docs/changelog.qmd
@@ -16,6 +16,9 @@ project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 - Mutating BMI model control functions (`update`, `update_until` and `finalize`) and
   extended mutating BMI functions (`load_state` and `save_state`) should return `nothing`.
 - Added downloading of testdata to Dockerfile, to ensure an image was able to build.
+- Wflow ZMQ server: allow JSON reading and writing of `NaN` and `Inf` values to avoid a JSON
+  spec error. For example, during initialization of a wflow model, some (diagnostic) model
+  variables are initialized with `NaN` values.
 
 ### Changed
 - Removed vertical concepts `HBV` and `FLEXTopo`.