[ruby/sinatra] Upgrade to Ruby 4.0-rc (#10364)

p8 · web-flow · commit 932cf08ee4c6 · 2025-12-08T09:44:22.000-08:00
diff --git a/frameworks/Ruby/sinatra/sinatra-postgres-iodine-mri.dockerfile b/frameworks/Ruby/sinatra/sinatra-postgres-iodine-mri.dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:3.5-rc
+FROM ruby:4.0-rc
 
 ENV RUBY_YJIT_ENABLE=1
 
diff --git a/frameworks/Ruby/sinatra/sinatra-postgres.dockerfile b/frameworks/Ruby/sinatra/sinatra-postgres.dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:3.5-rc
+FROM ruby:4.0-rc
 
 ENV RUBY_YJIT_ENABLE=1
 
diff --git a/frameworks/Ruby/sinatra/sinatra.dockerfile b/frameworks/Ruby/sinatra/sinatra.dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:3.5-rc
+FROM ruby:4.0-rc
 
 ENV RUBY_YJIT_ENABLE=1
 
