- ENHANCEMENT: Labels in `labels:` fields may now contain any printable ASCII characters ([bug 1672273](https://bugzilla.mozilla.org/show_bug.cgi?id=1672273)) - BUGFIX: Enforce ordering of generation of Pings, Metrics and Tags such that order is deterministic ([bug 1820334](https://bugzilla.mozilla.org/show_bug.cgi?id=1820334))
7.0.0
- BUGFIX: Remove internal-only fields from serialized metrics data ([550](https://github.com/mozilla/glean_parser/pull/550)) - FEATURE: New subcommand: `dump` to dump the metrics data as JSON ([550](https://github.com/mozilla/glean_parser/pull/550)) - BUGFIX: Kotlin: Generate enums with the right generic bound for ping reason codes ([551](https://github.com/mozilla/glean_parser/pull/551)). - **BREAKING CHANGE:** Fully remove support for the old events API ([549](https://github.com/mozilla/glean_parser/pull/549)) Adds a new lint `OLD_EVENT_API` to warn about missing `type` attributes on event extra keys. Note that the Glean SDK already dropped support for the old events API.
6.4.0
- BUGFIX: Correct code generation for labeled metrics in Rust ([533](https://github.com/mozilla/glean_parser/pull/533)) - BUGFIX: Correctly serialize `Rates` for Rust code ([530](https://github.com/mozilla/glean_parser/pull/530)) - Feature: Wrap labeled metric's static labels list as CoW strings (requires updated Glean support) ([534](https://github.com/mozilla/glean_parser/pull/534))
6.3.0
- events: Increase extras limit to 15 ([bug 1798713](https://bugzilla.mozilla.org/show_bug.cgi?id=1798713))
6.2.1
- Add support for Rate, Denominator and Numerator metrics for JavaScript. ([bug 1793777](https://bugzilla.mozilla.org/show_bug.cgi?id=1793777))