Update changelogs from fern repo (#5623)

Co-authored-by: dsinghvi <10870189+dsinghvi@users.noreply.github.com>

Author: fern-support

fern/products/cli-api-reference/cli-changelog/2026-05-26.mdx

@@ -1,3 +1,11 @@
+## 5.38.0
+**`(feat):`** Add interactive login prompt to `fern login`. When no active Auth0 session
+exists, the CLI now presents a menu to choose a login provider (GitHub,
+Google, Postman, or SSO). Selecting SSO prompts for an email address and
+routes directly to the organization's identity provider. If an active
+session already exists, authentication completes silently as before.
+
+
 ## 5.37.12
 **`(fix):`** Fix false "page was moved" warnings in `fern check` and `fern docs dev` when the same
 file is referenced across multiple doc versions. The missing-redirects rule now tracks