v2.4

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•Last updated Oct 13, 2026

DataJoint 2.4 — larger refactors deferred from the 2.3 line (e.g. graph-model modernization).

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feat: database.name namespaces schema names on MySQL
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#1583 opened Oct 9, 2026 · Updated Oct 13, 2026
Diagram.restrict: apply Part conditions through the Master to preserve master-part compositional integrity
datajoint/datajoint-python#1501 · opened on Jul 16, 2026 · v2.4
2
Trustworthy garbage collection: complete reference discovery (#1469) + race-safe deletion (#1445)
datajoint/datajoint-python#1478 · opened on Jul 2, 2026 · v2.4
5
Two-phase, transaction-safe garbage collection (quarantine -> grace -> purge)
datajoint/datajoint-python#1445 · opened on Apr 30, 2026 · v2.4
3
Require the codec context kwarg: remove connection context from the key dict
datajoint/datajoint-python#1557 · opened on Sep 30, 2026 · v2.4
Evaluate replacing MinIO in the test fixture: the vendor has withdrawn public images
datajoint/datajoint-python#1560 · opened on Sep 30, 2026 · v2.4
Public access to hidden attributes (_job_*, _prov): no reader exists
datajoint/datajoint-python#1562 · opened on Oct 1, 2026 · v2.4
2
Mapping restriction naming a hidden attribute silently drops the predicate
datajoint/datajoint-python#1561 · opened on Oct 1, 2026 · v2.4
1
to_arrays() can't read the hidden job-metadata attributes that job-metadata.md documents
datajoint/datajoint-python#1553 · opened on Sep 29, 2026 · v2.4
Rename the table tiers to a consistent axis — dj.Entry, dj.Ingest, dj.Compute (keep Manual/Imported/Computed as permanent aliases)
datajoint/datajoint-python#1546 · opened on Aug 20, 2026 · v2.4
1
database.name should namespace schema names on MySQL, as it does on PostgreSQL
datajoint/datajoint-python#1582 · opened on Oct 9, 2026 · v2.4
Drafting: declare and populate new tables in memory, beside the pipeline's tables on the server
datajoint/datajoint-python#1552 · opened on Sep 25, 2026 · v2.4

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v2.4

feat: database.name namespaces schema names on MySQL

Diagram.restrict: apply Part conditions through the Master to preserve master-part compositional integrity

Trustworthy garbage collection: complete reference discovery (#1469) + race-safe deletion (#1445)

Two-phase, transaction-safe garbage collection (quarantine -> grace -> purge)

Require the codec `context` kwarg: remove connection context from the `key` dict

Evaluate replacing MinIO in the test fixture: the vendor has withdrawn public images

Public access to hidden attributes (_job_*, _prov): no reader exists

Mapping restriction naming a hidden attribute silently drops the predicate

`to_arrays()` can't read the hidden job-metadata attributes that `job-metadata.md` documents

Rename the table tiers to a consistent axis — `dj.Entry`, `dj.Ingest`, `dj.Compute` (keep `Manual`/`Imported`/`Computed` as permanent aliases)

database.name should namespace schema names on MySQL, as it does on PostgreSQL

Drafting: declare and populate new tables in memory, beside the pipeline's tables on the server

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