diff --git a/CHANGELOG.md b/CHANGELOG.md
index 734b975..d1321cf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.0.1.alpha4 - 2026-07-12
+
+### Bumped
+
+- Runtime dependency `opencode-ruby` pinned to `= 0.0.1.alpha4`, adding
+  current `session.status` idle handling and correct multi-assistant tool-loop
+  finalization for Rails turns.
+
 ## 0.0.1.alpha3 - 2026-07-10
 
 ### Bumped
diff --git a/lib/opencode/rails_version.rb b/lib/opencode/rails_version.rb
index 33a8f3b..aff155b 100644
--- a/lib/opencode/rails_version.rb
+++ b/lib/opencode/rails_version.rb
@@ -11,5 +11,5 @@
 # We can't reuse the same constant from a second gem, so we use a
 # distinct, non-namespaced constant.
 module Opencode
-  RAILS_VERSION = "0.0.1.alpha3"
+  RAILS_VERSION = "0.0.1.alpha4"
 end
diff --git a/opencode-rails.gemspec b/opencode-rails.gemspec
index ebaafc7..2e37cd3 100644
--- a/opencode-rails.gemspec
+++ b/opencode-rails.gemspec
@@ -37,7 +37,7 @@ Gem::Specification.new do |spec|
   # this gem builds on. During alpha both gems evolve in lockstep — we pin
   # exactly (= not ~>) so that consumers always pick the version this gem
   # was tested against.
-  spec.add_runtime_dependency "opencode-ruby", "= 0.0.1.alpha3"
+  spec.add_runtime_dependency "opencode-ruby", "= 0.0.1.alpha4"
 
   # Rails sub-libraries used at runtime. Depending on these individually
   # (instead of the `rails` umbrella) avoids forcing host apps to load