---
keywords: [release, GreptimeDB, changelog, v1.0.0]
description: GreptimeDB v1.0.0 Changelog
date: 2026-04-08
---

# v1.0.0

Release date: April 08, 2026

This is GreptimeDB v1.0.0 — our first GA release! We couldn't have gotten here without the community. Thank you to everyone who filed issues, submitted PRs, and ran GreptimeDB in your environments. Your feedback helped us improve every step of the way. This is a big milestone, and we'll continue making GreptimeDB better.

GreptimeDB v1.0.0 switches the default SST format to flat for better performance under high-cardinality workloads, improves metric engine ingestion with bulk inserts, adds partial success support for trace ingestion, introduces built-in Perses dashboard support, and includes several PostgreSQL compatibility fixes.

### 👍 Highlights

**Flat SST is now the default storage format.** New tables use the flat format by default. Existing tables using `primary_key` format continue to work, and the flat scan path supports both formats. To explicitly use the old format:
  ```sql
  ALTER TABLE my_table SET 'sst_format' = 'primary_key';
  ```
  Or via HTTP ingestion header:
  ```
  x-greptime-hints: sst_format=primary_key
  ```

**OTLP**

- **Partial success in trace ingestion** so partial errors no longer fail the entire batch.
- **Auto alter table during trace ingestion** from int to float types.


**Dashboard**

- **Built-in Perses dashboard support.** GreptimeDB now ships with built-in visualization powered by [Perses](https://perses.dev/).
- **Dashboard updated to v0.12.0.**

**PostgreSQL Compatibility**

- Fix extended query optimization and format issues.
- Fix `ParameterDescription` size limit handling.
- Fix 8-bit int mapped to `smallint`.
- Fix sync cleanup issues with PostgreSQL format.


### Breaking changes

* feat!: switch default sst format to flat by [@evenyag](https://github.com/evenyag) in [#7909](https://github.com/GreptimeTeam/greptimedb/pull/7909)
* refactor!: update arrow-ipc output to stream format by [@sunng87](https://github.com/sunng87) in [#7922](https://github.com/GreptimeTeam/greptimedb/pull/7922)

### 🚀 Features

* feat(procedure): detect potential deadlock when parent/child procedures share lock keys by [@YZL0v3ZZ](https://github.com/YZL0v3ZZ) in [#7752](https://github.com/GreptimeTeam/greptimedb/pull/7752)
* feat: introduce APIs for storing perses dashboard definition by [@sunng87](https://github.com/sunng87) in [#7791](https://github.com/GreptimeTeam/greptimedb/pull/7791)
* feat: track unlimited usage in memory manager by [@fengjiachun](https://github.com/fengjiachun) in [#7811](https://github.com/GreptimeTeam/greptimedb/pull/7811)
* feat(http): improve error logging with client IP by [@maximk777](https://github.com/maximk777) in [#7503](https://github.com/GreptimeTeam/greptimedb/pull/7503)
* feat(mito2): add partition range cache infrastructure by [@evenyag](https://github.com/evenyag) in [#7798](https://github.com/GreptimeTeam/greptimedb/pull/7798)
* feat: add flat last row reader to the final stream by [@evenyag](https://github.com/evenyag) in [#7818](https://github.com/GreptimeTeam/greptimedb/pull/7818)
* feat(metric-engine): support bulk inserts with put fallback by [@v0y4g3r](https://github.com/v0y4g3r) in [#7792](https://github.com/GreptimeTeam/greptimedb/pull/7792)
* feat: update dashboard to v0.12.0 by [@ZonaHex](https://github.com/ZonaHex) in [#7823](https://github.com/GreptimeTeam/greptimedb/pull/7823)
* feat: cache decoded region metadata alone with parquet metadata by [@waynexia](https://github.com/waynexia) in [#7813](https://github.com/GreptimeTeam/greptimedb/pull/7813)
* feat: export import v2 pr1 by [@fengjiachun](https://github.com/fengjiachun) in [#7785](https://github.com/GreptimeTeam/greptimedb/pull/7785)
* feat(mito): flat scan for time series memtable by [@v0y4g3r](https://github.com/v0y4g3r) in [#7814](https://github.com/GreptimeTeam/greptimedb/pull/7814)
* feat: avoid some vector-array conversions on flat projection by [@waynexia](https://github.com/waynexia) in [#7804](https://github.com/GreptimeTeam/greptimedb/pull/7804)
* feat: supports sst_format for x-greptime-hints and database options by [@killme2008](https://github.com/killme2008) in [#7843](https://github.com/GreptimeTeam/greptimedb/pull/7843)
* feat: add parquet pk prefilter helpers by [@evenyag](https://github.com/evenyag) in [#7850](https://github.com/GreptimeTeam/greptimedb/pull/7850)
* feat: implement partition range cache stream by [@evenyag](https://github.com/evenyag) in [#7842](https://github.com/GreptimeTeam/greptimedb/pull/7842)
* feat: use ArrowReaderBuilder instead of the RowGroups API by [@evenyag](https://github.com/evenyag) in [#7853](https://github.com/GreptimeTeam/greptimedb/pull/7853)
* feat: simplify nested aggr inside count query by [@waynexia](https://github.com/waynexia) in [#7859](https://github.com/GreptimeTeam/greptimedb/pull/7859)
* feat: update postgres ParameterDescription size limit by [@sunng87](https://github.com/sunng87) in [#7861](https://github.com/GreptimeTeam/greptimedb/pull/7861)
* feat: add incremental read context and scan boundaries by [@discord9](https://github.com/discord9) in [#7848](https://github.com/GreptimeTeam/greptimedb/pull/7848)
* feat: add common_version customization  by [@sunng87](https://github.com/sunng87) in [#7869](https://github.com/GreptimeTeam/greptimedb/pull/7869)
* feat: pending rows batching for metrics by [@v0y4g3r](https://github.com/v0y4g3r) in [#7831](https://github.com/GreptimeTeam/greptimedb/pull/7831)
* feat(partition): add expression split utility by [@WenyXu](https://github.com/WenyXu) in [#7822](https://github.com/GreptimeTeam/greptimedb/pull/7822)
* feat: implement prefilter framework and primary key prefilter by [@evenyag](https://github.com/evenyag) in [#7862](https://github.com/GreptimeTeam/greptimedb/pull/7862)
* feat: implement export-v2 chunked data export flow by [@fengjiachun](https://github.com/fengjiachun) in [#7841](https://github.com/GreptimeTeam/greptimedb/pull/7841)
* feat: auto-align Prometheus schemas in pending rows batching by [@v0y4g3r](https://github.com/v0y4g3r) in [#7877](https://github.com/GreptimeTeam/greptimedb/pull/7877)
* feat: implement prefilter for bulk memtable by [@evenyag](https://github.com/evenyag) in [#7895](https://github.com/GreptimeTeam/greptimedb/pull/7895)
* feat: partial success in trace ingestion by [@shuiyisong](https://github.com/shuiyisong) in [#7892](https://github.com/GreptimeTeam/greptimedb/pull/7892)
* feat: always use flat scan path for both format by [@evenyag](https://github.com/evenyag) in [#7901](https://github.com/GreptimeTeam/greptimedb/pull/7901)
* feat: auto alter table during trace ingestion from int to float by [@shuiyisong](https://github.com/shuiyisong) in [#7871](https://github.com/GreptimeTeam/greptimedb/pull/7871)

### 🐛 Bug Fixes

* fix: make pipeline table ttl forever by [@sunng87](https://github.com/sunng87) in [#7795](https://github.com/GreptimeTeam/greptimedb/pull/7795)
* fix: rm useless analyzer by [@discord9](https://github.com/discord9) in [#7797](https://github.com/GreptimeTeam/greptimedb/pull/7797)
* fix: allow empty string for env values by [@killme2008](https://github.com/killme2008) in [#7803](https://github.com/GreptimeTeam/greptimedb/pull/7803)
* fix: correct unicode representation for jsonb_to_string by [@sunng87](https://github.com/sunng87) in [#7810](https://github.com/GreptimeTeam/greptimedb/pull/7810)
* fix: resolve optimization issue for extended query by [@sunng87](https://github.com/sunng87) in [#7824](https://github.com/GreptimeTeam/greptimedb/pull/7824)
* fix: windows file path by [@fengjiachun](https://github.com/fengjiachun) in [#7839](https://github.com/GreptimeTeam/greptimedb/pull/7839)
* fix: prevent stale in-flight cache refill after invalidation in CacheContainer by [@WenyXu](https://github.com/WenyXu) in [#7825](https://github.com/GreptimeTeam/greptimedb/pull/7825)
* fix: prom cast to f64 by [@discord9](https://github.com/discord9) in [#7840](https://github.com/GreptimeTeam/greptimedb/pull/7840)
* fix: update 8-bit int to smallint in postgres by [@sunng87](https://github.com/sunng87) in [#7854](https://github.com/GreptimeTeam/greptimedb/pull/7854)
* fix(mito2): accept post-truncate flush for skip-wal tables by [@v0y4g3r](https://github.com/v0y4g3r) in [#7858](https://github.com/GreptimeTeam/greptimedb/pull/7858)
* fix: nested views not working by [@Boudewijn26](https://github.com/Boudewijn26) in [#7857](https://github.com/GreptimeTeam/greptimedb/pull/7857)
* fix: fix SeriesScan verbose mode missing metrics by [@evenyag](https://github.com/evenyag) in [#7872](https://github.com/GreptimeTeam/greptimedb/pull/7872)
* fix(datatypes): correct ConstantVector rhs comparison in vector equality by [@cuiweixie](https://github.com/cuiweixie) in [#7866](https://github.com/GreptimeTeam/greptimedb/pull/7866)
* fix: correct app-name for dashboard by [@sunng87](https://github.com/sunng87) in [#7884](https://github.com/GreptimeTeam/greptimedb/pull/7884)
* fix: allow auto type upscale conversion in trace ingestion by [@shuiyisong](https://github.com/shuiyisong) in [#7870](https://github.com/GreptimeTeam/greptimedb/pull/7870)
* fix: avoid cloning serialized view plans on resolve by [@ynachi](https://github.com/ynachi) in [#7882](https://github.com/GreptimeTeam/greptimedb/pull/7882)
* fix: incorrect prefilter check by [@evenyag](https://github.com/evenyag) in [#7886](https://github.com/GreptimeTeam/greptimedb/pull/7886)
* fix: return empty when promql gets non-exist label name by [@shuiyisong](https://github.com/shuiyisong) in [#7899](https://github.com/GreptimeTeam/greptimedb/pull/7899)
* fix: windows ci by [@fengjiachun](https://github.com/fengjiachun) in [#7905](https://github.com/GreptimeTeam/greptimedb/pull/7905)
* fix: add overflow check before interleave() by [@evenyag](https://github.com/evenyag) in [#7921](https://github.com/GreptimeTeam/greptimedb/pull/7921)
* fix: resolve postgres format and sync cleanup issues by [@sunng87](https://github.com/sunng87) in [#7928](https://github.com/GreptimeTeam/greptimedb/pull/7928)
* fix(repartition): harden repartition rollback paths by [@WenyXu](https://github.com/WenyXu) in [#7918](https://github.com/GreptimeTeam/greptimedb/pull/7918)

### 🚜 Refactor

* refactor: customize standalone instance build by [@MichaelScofield](https://github.com/MichaelScofield) in [#7807](https://github.com/GreptimeTeam/greptimedb/pull/7807)
* refactor: unify flush and compaction to always use FlatSource by [@evenyag](https://github.com/evenyag) in [#7799](https://github.com/GreptimeTeam/greptimedb/pull/7799)
* refactor: remove Memtable::iter by [@v0y4g3r](https://github.com/v0y4g3r) in [#7809](https://github.com/GreptimeTeam/greptimedb/pull/7809)
* refactor: move election trait and implementations to the `common-meta` crate by [@shuiyisong](https://github.com/shuiyisong) in [#7820](https://github.com/GreptimeTeam/greptimedb/pull/7820)
* refactor: simplify scan memory tracking by [@fengjiachun](https://github.com/fengjiachun) in [#7827](https://github.com/GreptimeTeam/greptimedb/pull/7827)
* refactor(metric-engine): Refactor PendingRowsBatcher for better testability and benchmarking by [@v0y4g3r](https://github.com/v0y4g3r) in [#7902](https://github.com/GreptimeTeam/greptimedb/pull/7902)
* refactor: extract otel helper by [@shuiyisong](https://github.com/shuiyisong) in [#7910](https://github.com/GreptimeTeam/greptimedb/pull/7910)

### 📚 Documentation

* docs: update year to 2026 by [@yihong0618](https://github.com/yihong0618) in [#7787](https://github.com/GreptimeTeam/greptimedb/pull/7787)
* docs: flow inc query rfc by [@discord9](https://github.com/discord9) in [#7816](https://github.com/GreptimeTeam/greptimedb/pull/7816)
* docs(metric-engine): update prom_store example configs by [@v0y4g3r](https://github.com/v0y4g3r) in [#7920](https://github.com/GreptimeTeam/greptimedb/pull/7920)

### ⚡ Performance

* perf: support group accumulators for state wrapper by [@waynexia](https://github.com/waynexia) in [#7826](https://github.com/GreptimeTeam/greptimedb/pull/7826)
* perf: optimize promql range functions by [@waynexia](https://github.com/waynexia) in [#7878](https://github.com/GreptimeTeam/greptimedb/pull/7878)
* perf: no longer window sort when limit by [@discord9](https://github.com/discord9) in [#7912](https://github.com/GreptimeTeam/greptimedb/pull/7912)

### 🧪 Testing

* test(fuzz): add metric table repartition fuzz target by [@WenyXu](https://github.com/WenyXu) in [#7754](https://github.com/GreptimeTeam/greptimedb/pull/7754)
* test: filter on region_peers table by [@waynexia](https://github.com/waynexia) in [#7864](https://github.com/GreptimeTeam/greptimedb/pull/7864)

### ⚙️ Miscellaneous Tasks

* ci: upload artifacts use s3 proxy by [@daviderli614](https://github.com/daviderli614) in [#7800](https://github.com/GreptimeTeam/greptimedb/pull/7800)
* chore: update visibility of BatchToRecordBatchAdapter::new by [@sunng87](https://github.com/sunng87) in [#7817](https://github.com/GreptimeTeam/greptimedb/pull/7817)
* chore: remove GrpcQueryHandler::put_record_batch by [@v0y4g3r](https://github.com/v0y4g3r) in [#7844](https://github.com/GreptimeTeam/greptimedb/pull/7844)
* ci: remove redundant directory level when uploading artifacts to S3 by [@daviderli614](https://github.com/daviderli614) in [#7852](https://github.com/GreptimeTeam/greptimedb/pull/7852)
* chore: remove unused rexpect dev-dependency by [@fengys1996](https://github.com/fengys1996) in [#7865](https://github.com/GreptimeTeam/greptimedb/pull/7865)
* chore: refine track memory metrics semantics by [@fengjiachun](https://github.com/fengjiachun) in [#7874](https://github.com/GreptimeTeam/greptimedb/pull/7874)
* chore: update rust toolchain to 2026-03-21 by [@sunng87](https://github.com/sunng87) in [#7849](https://github.com/GreptimeTeam/greptimedb/pull/7849)
* chore: update ignore list for AI related by [@shuiyisong](https://github.com/shuiyisong) in [#7896](https://github.com/GreptimeTeam/greptimedb/pull/7896)
* chore: Update Dockerfile by [@daviderli614](https://github.com/daviderli614) in [#7893](https://github.com/GreptimeTeam/greptimedb/pull/7893)
* ci: update dev-builder image tag by [@github-actions[bot]](https://github.com/github-actions[bot]) in [#7894](https://github.com/GreptimeTeam/greptimedb/pull/7894)
* chore: remove unused deps using udeps by [@shuiyisong](https://github.com/shuiyisong) in [#7906](https://github.com/GreptimeTeam/greptimedb/pull/7906)
* chore: memory limit comment by [@fengjiachun](https://github.com/fengjiachun) in [#7914](https://github.com/GreptimeTeam/greptimedb/pull/7914)
* chore: bump version to 1.0.0 by [@evenyag](https://github.com/evenyag) in [#7935](https://github.com/GreptimeTeam/greptimedb/pull/7935)

## New Contributors

* [@ynachi](https://github.com/ynachi) made their first contribution in [#7882](https://github.com/GreptimeTeam/greptimedb/pull/7882)
* [@cuiweixie](https://github.com/cuiweixie) made their first contribution in [#7866](https://github.com/GreptimeTeam/greptimedb/pull/7866)
* [@Boudewijn26](https://github.com/Boudewijn26) made their first contribution in [#7857](https://github.com/GreptimeTeam/greptimedb/pull/7857)
* [@maximk777](https://github.com/maximk777) made their first contribution in [#7503](https://github.com/GreptimeTeam/greptimedb/pull/7503)

## All Contributors

We would like to thank the following contributors from the GreptimeDB community:

[@Boudewijn26](https://github.com/Boudewijn26), [@MichaelScofield](https://github.com/MichaelScofield), [@WenyXu](https://github.com/WenyXu), [@YZL0v3ZZ](https://github.com/YZL0v3ZZ), [@ZonaHex](https://github.com/ZonaHex), [@cuiweixie](https://github.com/cuiweixie), [@daviderli614](https://github.com/daviderli614), [@discord9](https://github.com/discord9), [@evenyag](https://github.com/evenyag), [@fengjiachun](https://github.com/fengjiachun), [@fengys1996](https://github.com/fengys1996), [@github-actions[bot]](https://github.com/github-actions[bot]), [@killme2008](https://github.com/killme2008), [@maximk777](https://github.com/maximk777), [@shuiyisong](https://github.com/shuiyisong), [@sunng87](https://github.com/sunng87), [@v0y4g3r](https://github.com/v0y4g3r), [@waynexia](https://github.com/waynexia), [@yihong0618](https://github.com/yihong0618), [@ynachi](https://github.com/ynachi)
