What's Changed

New PostgreSQL backend

The new PostgreSQL backend is now enabled by default. You can still enable the old backend with --postgresql-old flag or FERRETDB_POSTGRESQL_OLD=true environment variable, but it will be removed in the next release.

Default SQLite directory for Docker images

Our Docker images (but not binaries and .deb / .rpm packages) now use /state directory for the SQLite backend.
That directory is also a Docker volume, so data will be preserved after the container restart by default.

`arm/v7` packages

We now provide linux/arm/v7 binaries, Docker images, and .deb / .rpm packages.

New Features 🎉

Implement pushdown for aggregate for PostgreSQL by @noisersup in #3607
Implement sort pushdown for PostgreSQL by @noisersup in #3504
Implement limit pushdown for PostgreSQL by @noisersup in #3580
Implement indexSizes for collStats by @chilagrow in #3575
Implement free storage in collStats, dbStats and aggregate $collStats by @chilagrow in #3594
Add capped collection counts in serverStatus by @chilagrow in #3566
Integrate Statsviz by @codenoid in #3591

Fixed Bugs 🐛

Fix invalid validation for _id field by @slavabobik in #3523
Fix explain panic for non-existent collection on PostgreSQL by @noisersup in #3541

Enhancements 🛠

Add basic logging for PostgreSQL backend by @AlekSi in #3560
Report actual backend name by @AlekSi in #3570
Improve /debug page by @codenoid in #3592
Add filter pushdown for _id: <string> for SQLite by @AlekSi in #3599

Documentation 📄

Add release blog post for FerretDB v1.12 by @Fashander in #3555
Crush images by @AlekSi in #3561
Change SQLite directory for Docker images by @AlekSi in #3571
Enable Mermaid diagrams in Docusaurus by @sid-js in #3532
Enable linters to accept exclamation marks in headers by @chanon-mike in #3578
Add SQLite info to glossary list by @pvinoda in #3593
Add blog post on using Illa Cloud with FerretDB by @Fashander in #3516
Add SQLite set up docs by @Fashander in #3568
Add "How to Install FerretDB on Ubuntu" blog post by @Fashander in #2802
Update ILLA blog post by @Fashander in #3620
Add links to blog by @Fashander in #3623

Other Changes 🤖

Improve embedded package documentation by @princejha95 in #3537
Use separate PostgreSQL databases in tests by @AlekSi in #3553
Make collStats calculate collection size accurately for PostgreSQL statistics by @chilagrow in #3513
Implement Collection.Compact for SQLite by @Akhil-2001 in #3536
Use self-hosted runner for packages building by @AlekSi in #3569
Do not create databases during local setup by @AlekSi in #3572
Build arm/v7 binaries by @AlekSi in #3577
Add more tests and fixes for $collStats aggregation stage by @chilagrow in #3565
Build arm/v7 .deb and .rpm packages and binaries by @AlekSi in #3576
Add tests for insertion of documents with invalid _id fields by @slavabobik in #3579
Add more data to output of collStats and dbStats by @chilagrow in #3538
Update dataSize and dbStats integration tests by @chilagrow in #3585
Do not return stats in Backend.ListDatabases by @AlekSi in #3588
Remove old TODOs by @AlekSi in #3595
Use stdlib's slices package by @AlekSi in #3590
Remove done TODO by @chilagrow in #3596
Check that linked issues are open by @KrishnaSindhur in #3277
Make it easier to run old PG handler by @AlekSi in #3598
Implement Collection.Compact for PostgreSQL by @rumyantseva in #3603
Do not skip invalid TODOs by @AlekSi in #3597
Unskip filter pushdown integration tests by @noisersup in #3605
Call ANALYZE less often by @Aditya1404Sal in #3563
Keep envtool's version always up-to-date by @AlekSi in #3609
Fix some tests for SQLite backend by @AlekSi in #3617
Do not create OpLog database/collection on a fly by @AlekSi in #3625
Make listIndexes return a sorted list by @codenoid in #3602

New Contributors

@Akhil-2001 made their first contribution in #3536
@sid-js made their first contribution in #3532
@codenoid made their first contribution in #3591
@chanon-mike made their first contribution in #3578
@pvinoda made their first contribution in #3593

All closed issues and pull requests.
All commits.