chore(gateway): Log PCRE upgrade breaking change in 3.7#4972
Merged
lena-larionova merged 2 commits intomainfrom Apr 22, 2026
Merged
chore(gateway): Log PCRE upgrade breaking change in 3.7#4972lena-larionova merged 2 commits intomainfrom
lena-larionova merged 2 commits intomainfrom
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Pull request overview
Logs the previously unrecorded breaking change introduced in Gateway 3.7 where the regex engine moved from PCRE to PCRE2, impacting configurations that use legacy regex syntax (notably for LTS upgrades from 3.4 to 3.10).
Changes:
- Added a 3.7 breaking-change entry documenting the PCRE → PCRE2 dependency bump and its config impact.
- Added an LTS (3.4 → 3.10) upgrade note calling out the PCRE2 syntax requirement and recommended action.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| app/gateway/breaking-changes.md | Adds a 3.7 breaking-change section describing the PCRE → PCRE2 upgrade and a reference link. |
| app/_includes/upgrade/lts-changes-34-310.md | Adds an LTS upgrade table entry under Dependencies with action guidance for updating regexes. |
Guaris
approved these changes
Apr 22, 2026
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Angel <Guaris@users.noreply.github.com>
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Description
In 3.7, we bumped the PCRE dependency to PCRE2. This wasn't logged as a breaking change, but it affects any configs with old-format regexes, and will affect an LTS upgrade from 3.4 to 3.10.
Issue reported on Slack. I did my own digging around about the PCRE > PCRE2 bump and verified that it is a big breaking change for the library.
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