Update changelogs from fern repo (#3328)

Author: fern-support

fern/products/sdks/overview/ruby/changelog/2026-01-28.mdx

@@ -1,3 +1,18 @@
+## 1.0.0-rc84
+**`(fix):`** Fix packageName being incorrectly used for folder/module naming. The packageName from
+publish config (e.g., output.publish.rubygems.packageName) is now only used for the
+gemspec spec.name field, not for folder structure or Ruby module names. This fixes
+issues where gems with special characters in their package name (e.g., "square.rb")
+would have incorrect folder structures (lib/square_rb/ instead of lib/square/) and
+normalized gemspec names. The folder and module naming now correctly uses only the
+custom config moduleName option or the organization name as fallback.
+
+
+**`(fix):`** Fix organization names with digits (e.g., "auth0") being incorrectly transformed to
+"auth_0" in folder names. The snake_case transformation now preserves letter-digit
+sequences, so "auth0" stays "auth0" and "OAuth2" becomes "oauth2" instead of "o_auth_2".
+
+
 ## 1.0.0-rc83
 **`(fix):`** Fix request body serialization bug where path/query/header parameters were incorrectly
 serialized as nil values in the request body. For endpoints with inlined request bodies