prometheus-client

Highlights

Added

• Native histogram support, including native-only histograms and histograms with both classic and native buckets.
• An off-by-default protobuf-protox feature to build protobuf support without requiring an external protoc binary.

Changed

• prometheus_protobuf now generates and encodes Prometheus io.prometheus.client protobuf messages (from metrics.proto) instead of the OpenMetrics protobuf data model (prometheus/OpenMetrics/issues/296). The protobuf and openmetrics_protobuf features retain the now-deprecated OpenMetrics protobuf support, which will be removed in a future release.
• Updated prost, prost-build, and prost-types to v0.14.

What's Changed

• protobuf: move from OpenMetrics to Prometheus proto by @howardjohn in #298
• Add @krisztianfekete to MAINTAINERS.md by @krisztianfekete in #302
• Add native histogram support by @howardjohn in #304
• chore: prepare v0.25.0 release by @krisztianfekete in #305

New Contributors

• @krisztianfekete made their first contribution in #302

Full Changelog: v0.24.1...v0.25.0

What's Changed

• refactor(encoding): remove as casts by @jalil-salame in #281
• fix(encoding): do not encode descriptor of empty family by @spoutn1k in #279
• feat(metrics/histogram): 🍪 count() and sum() accessors by @cratelyn in #242
• feat(metrics/family): 🍬 contains() checks if metrics exist by @cratelyn in #245
• feat(metrics/family): 🍭 len() returns the number of metrics by @cratelyn in #246
• feat(encoding): encode usize and isize by @jalil-salame in #282

New Contributors

• @RandomInsano made their first contribution in #261
• @ADD-SP made their first contribution in #265
• @slonkazoid made their first contribution in #274
• @hanabi1224 made their first contribution in #273
• @jalil-salame made their first contribution in #281
• @spoutn1k made their first contribution in #279
• @mozzieongit made their first contribution in #289

Full Changelog: v0.23.1...v0.24.1

What's Changed

• feat(encoding)!: EncodeLabelSet::encode() uses reference by @cratelyn in #257
• feat(metrics/family): 🍫 add Family::get_or_create_owned() by @cratelyn in #244
• Add example using std::io::Write by @RandomInsano in #261
• fix(derive-encode): expand prelude symbols to absolute paths by @ADD-SP in #265
• fix: remove unnecessary Sized boundaries by @slonkazoid in #274
• feat: impl<T: Collector> Collector for std::sync::Arc by @hanabi1224 in #273
• Add support for timestamp encoding in exemplars by @bobrik in #276

New Contributors

• @RandomInsano made their first contribution in #261
• @ADD-SP made their first contribution in #265
• @slonkazoid made their first contribution in #274
• @hanabi1224 made their first contribution in #273

Full Changelog: v0.23.1...v0.24.0

See changelog for details.

See changelog for details.

See changelog for details.

See changelog for details.

See changelog for details.

See changelog for details.

Added

• Expose Encoder methods. See PR 41.

Changed

• Use AtomicU32 on platforms that don't support AtomicU64. See PR 42.

Changed

• Release as prometheus-client and prometheus-client-derive-text-encode.