Merge pull request #517 from zzak/twir-2025-06-27

twir-2025-06-27

Author: zzak

_posts/2025-06-27-this-week-in-rails.markdown

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+---
+layout: post
+title: "BacktraceCleaner gets first_clean_frame and first_clean_location"
+categories: news
+author: zzak
+og_image: assets/images/this-week-in-rails.png
+published: true
+date: 2025-06-27
+---
+
+
+Hi, it's [zzak](https://github.com/zzak). Let's explore this week's changes in the Rails codebase.
+
+[The Rails Foundation launched a new podcast: 'On Rails' with host Robby Russell](https://onrails.buzzsprout.com)  
+In each episode, Robby talks with Rails devs and explores the real-world decisions that go into building, maintaining, and scaling Ruby on Rails applications. Episode one is already up with guest Rosa Gutiérrez.
+Listen at [onrails.buzzsprout.com](https://onrails.buzzsprout.com), or in your favorite podcast app.
+
+[Improve CurrentAttribute and ExecutionContext state management in test cases](https://github.com/rails/rails/pull/55247)  
+Previously these two global state would be entirely cleared out whenever calling into code that is wrapped by the Rails executor, typically Action Controller or Active Job helpers.
+Now re-entering the executor will properly save and restore that state.
+
+[Implement ActiveSupport::BacktraceCleaner#first_clean_frame](https://github.com/rails/rails/pull/55222)  
+The new method `ActiveSupport::BacktraceCleaner#first_clean_frame` returns the first clean frame of the caller's backtrace, or `nil`.
+Useful when you want to report the application-level frame where something happened, for example the caller that emitted a warning you are tracking in production.
+
+[Implement ActiveSupport::BacktraceCleaner#first_clean_location](https://github.com/rails/rails/pull/55230)  
+The new method `ActiveSupport::BacktraceCleaner#first_clean_location` returns the first clean location of the caller's call stack, or `nil`.
+Locations are `Thread::Backtrace::Location` objects. Useful when you want to report the application-level location where something happened, for example the source file and line number of a warning you are tracking in production.
+
+[Respect users configured IRB_NAME](https://github.com/rails/rails/pull/55217)  
+Rails will now honor when the user has configured `IRB.conf[:IRB_NAME]`.
+This PR makes it so the `IRB_NAME` is only set if it is not the default, similar to the way the `PROMPT_MODE` is set.
+
+[Active Job Continuation isolated steps](https://github.com/rails/rails/pull/55212)  
+Add an isolated option to steps. Defaults to false.
+Isolated steps are always run in their own job execution.
+This allows you to execute a long running step separately which is useful to ensure that progress is saved before it runs.
+
+[Use ntuples to populate row_count instead of count for Postgres](https://github.com/rails/rails/pull/55200)  
+Now row_count in the `sql.active_record` notification will use [PG::Result#ntuples](https://deveiate.org/code/pg/PG/Result.html#method-i-ntuples), a libpq function for getting the number of rows returned from a query, rather than `#count` which would iterate through the entire result set.
+
+[Fix checking unpersisted record is included in strict HABTM association](https://github.com/rails/rails/pull/55196)  
+Previously, trying to check whether a `new_record?` (`Post.new`) is `include?`d in a strict-loaded `has_and_belongs_to_many` association would raise a `StrictLoadingViolationError` even when the HABTM association is already loaded.
+
+[FileUpdateChecker and EventedFileUpdateChecker ignore changes in Gem.path now](https://github.com/rails/rails/pull/54129)  
+This should improve the performance of reloads in development on an app with many gems.
+
+
+_You can view the whole list of changes [here](https://github.com/rails/rails/compare/@%7B2025-06-12%7D...main@%7B2025-06-27%7D)._
+_We had [24 contributors](https://contributors.rubyonrails.org/contributors/in-time-window/20250612-20250627) to the Rails codebase this past week!_
+
+Until next time!
+
+_[Subscribe](https://world.hey.com/this.week.in.rails) to get these updates mailed to you._