diff --git a/fern/products/cli-api-reference/cli-changelog/2026-05-16.mdx b/fern/products/cli-api-reference/cli-changelog/2026-05-16.mdx
index 17788484b..ea4e156cf 100644
--- a/fern/products/cli-api-reference/cli-changelog/2026-05-16.mdx
+++ b/fern/products/cli-api-reference/cli-changelog/2026-05-16.mdx
@@ -1,3 +1,10 @@
+## 5.27.4
+**`(fix):`** Classify service and environment errors at their boundary call sites: mark exhausted
+429 retries as NetworkError, pass error objects through failWithoutThrowing in remote
+generation so CliError codes propagate, and reclassify docs preview server startup
+failures as EnvironmentError instead of InternalError.
+
+
 ## 5.27.3
 **`(fix):`** Wrap `yaml.load` calls in `getVersionedNavigationConfiguration` and `getNavigationConfiguration`
 with try/catch boundaries that convert YAML parse failures to `CliError(ParseError)`, preventing