diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2cd8f9bb..7d052085 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.9.1"
+  ".": "1.9.2"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 10379f97..eb3b66a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 1.9.2 (2026-06-30)
+
+Full Changelog: [v1.9.1...v1.9.2](https://github.com/OneBusAway/ruby-sdk/compare/v1.9.1...v1.9.2)
+
+### Chores
+
+* **internal:** bound formatter parallelism to CPU count ([e875e4e](https://github.com/OneBusAway/ruby-sdk/commit/e875e4ec89dd550cac93a99ef43251bb10515d24))
+
 ## 1.9.1 (2026-06-17)
 
 Full Changelog: [v1.9.0...v1.9.1](https://github.com/OneBusAway/ruby-sdk/compare/v1.9.0...v1.9.1)
diff --git a/Gemfile.lock b/Gemfile.lock
index 38cf25b3..9c993e77 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GIT
 PATH
   remote: .
   specs:
-    onebusaway-sdk (1.9.1)
+    onebusaway-sdk (1.9.2)
       cgi
       connection_pool
 
diff --git a/README.md b/README.md
index 58f6f4da..fc19ac69 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ To use this gem, install via Bundler by adding the following to your application
 <!-- x-release-please-start-version -->
 
 ```ruby
-gem "onebusaway-sdk", "~> 1.9.1"
+gem "onebusaway-sdk", "~> 1.9.2"
 ```
 
 <!-- x-release-please-end -->
diff --git a/Rakefile b/Rakefile
index aa68a9d3..377915cc 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require "etc"
 require "pathname"
 require "securerandom"
 require "shellwords"
@@ -37,7 +38,11 @@ multitask(:test) do
   ruby(*%w[-w -e], rb, verbose: false) { fail unless _1 }
 end
 
-xargs = %w[xargs --no-run-if-empty --null --max-procs=0 --max-args=300 --]
+# Cap parallelism at the CPU count. `--max-procs=0` spawns one process per
+# 300-file batch with no upper bound; on large SDKs (thousands of files) that
+# oversubscribes CPUs and stacks up rubocop processes, exhausting memory and
+# slowing CI to the point of timing out.
+xargs = %W[xargs --no-run-if-empty --null --max-procs=#{Etc.nprocessors} --max-args=300 --]
 ruby_opt = {"RUBYOPT" => [ENV["RUBYOPT"], "--encoding=UTF-8"].compact.join(" ")}
 
 filtered = ->(ext, dirs) do
diff --git a/lib/onebusaway_sdk/version.rb b/lib/onebusaway_sdk/version.rb
index e327c9ca..bd643d82 100644
--- a/lib/onebusaway_sdk/version.rb
+++ b/lib/onebusaway_sdk/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module OnebusawaySDK
-  VERSION = "1.9.1"
+  VERSION = "1.9.2"
 end