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wire 2026-09-16
stories 17

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Rails skips leaky Ractor tests, speeds up TimeWithZone formatting

By RepoJournal · Filed · About Rails · Composed from the cited sources · methodology

A quiet day in rails/rails: two in-flight performance and test-suite fixes, a docs cleanup, and routine housekeeping in the devcontainer and website repos.

Skip leaky ractor tests rails/rails

by byroot

The leaky Ractor tests are skipped because they call `require` inside a Ractor, which breaks every gem that aliases `Kernel#require`, including Zeitwerk, Bootsnap, and Rubygems. If your suite loads any of those, this removes a source of unrelated failures.

Speed up TimeWithZone#xmlschema, #to_s and TimeZone.seconds_to_utc_offset rails/rails

by yaroslav

`TimeWithZone#xmlschema` for non-UTC values now converts the UTC time with `getlocal(utc_offset)` and formats it with `Time#iso8601`, dropping the regexp substitution and `format` call; the aliases `iso8601` and `rfc3339` follow, and values built from a `DateTime` take the existing path.

Speed up TimeWithZone#xmlschema, #to_s and TimeZone.seconds_to_utc_offset rails/rails

by Yaroslav Markin

The same optimization lands for `#to_s`, which now formats with `Time#to_s`, and for `TimeZone.seconds_to_utc_offset`, since `Time#iso8601` already emits the fixed `+HH:MM` offset and truncates offset seconds to minutes. Output is intended to be unchanged; only the work behind it shrinks.

Add Ruby versions: 4.0.7 [automated-ruby-update] (#137) rails/devcontainer

by Ruby on Rails Bot

The devcontainer feature picks up Ruby 4.0.7 from rbenv/ruby-build across the version matrix, the feature manifest, the Ruby README, and the test scripts.

Quick answers

What shipped in Rails on September 16, 2026?
A quiet day in rails/rails: two in-flight performance and test-suite fixes, a docs cleanup, and routine housekeeping in the devcontainer and website repos. In total, 12 commits and 5 pull requests landed.
Who contributed to Rails on September 16, 2026?
5 developers shipped this update, including Gannon McGibbon, byroot, yaroslav, Amanda Perino, and Ruby on Rails Bot.
What were the notable Rails updates?
Skip leaky ractor tests, Speed up TimeWithZone#xmlschema, #to_s and TimeZone.seconds_to_utc_offset, and Speed up TimeWithZone#xmlschema, #to_s and TimeZone.seconds_to_utc_offset.