v2.4

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•Last updated Oct 20, 2026

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

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fix(join): report a join on unrelated namesakes, not missing lineage
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#1642 opened Oct 18, 2026 · Updated Oct 20, 2026
fix(alter): change and rename attributes on PostgreSQL
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#1639 opened Oct 18, 2026 · Updated Oct 20, 2026
feat(diagram): Diagram.expand on a traversal plan
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#1637 opened Oct 18, 2026 · Updated Oct 20, 2026
feat: PostgreSQL is the default backend
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#1629 opened Oct 17, 2026 · Updated Oct 20, 2026
build: make the database drivers optional extras
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#1628 opened Oct 17, 2026 · Updated Oct 20, 2026
feat(diagram): make the diagram font configurable
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#1624 opened Oct 17, 2026 · Updated Oct 20, 2026
fix(jobs): stale_timeout=0 means no grace period
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#1623 opened Oct 17, 2026 · Updated Oct 20, 2026
fix(jobs): record _job_start_time on the server's clock
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#1622 opened Oct 17, 2026 · Updated Oct 20, 2026
test(diagram): reference model and properties for Diagram.expand
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#1621 opened Oct 17, 2026 · Updated Oct 20, 2026
fix(declare): refuse a part reference that closes a master-part group cycle
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#1620 opened Oct 17, 2026 · Updated Oct 20, 2026
chore(compose): run MinIO from the image the test fixture uses
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#1608 opened Oct 17, 2026 · Updated Oct 20, 2026
fix(json): make JSON path annotations and value comparisons portable
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#1607 opened Oct 17, 2026 · Updated Oct 20, 2026
fix(diagram): make rendered diagrams byte-reproducible across runs
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#1606 opened Oct 17, 2026 · Updated Oct 20, 2026
fix(query): count and restrict expressions with an empty primary key
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#1605 opened Oct 17, 2026 · Updated Oct 20, 2026
fix(postgres): read primary and foreign keys from pg_catalog
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#1604 opened Oct 17, 2026 · Updated Oct 20, 2026
fix(settings): environment variables beat datajoint.json for every setting
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#1603 opened Oct 17, 2026 · Updated Oct 20, 2026
feat: database.name namespaces schema names on MySQL
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#1583 opened Oct 9, 2026 · Updated Oct 21, 2026
2
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
3
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

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v2.4

fix(join): report a join on unrelated namesakes, not missing lineage

fix(alter): change and rename attributes on PostgreSQL

feat(diagram): Diagram.expand on a traversal plan

feat: PostgreSQL is the default backend

build: make the database drivers optional extras

feat(diagram): make the diagram font configurable

fix(jobs): stale_timeout=0 means no grace period

fix(jobs): record _job_start_time on the server's clock

test(diagram): reference model and properties for Diagram.expand

fix(declare): refuse a part reference that closes a master-part group cycle

chore(compose): run MinIO from the image the test fixture uses

fix(json): make JSON path annotations and value comparisons portable

fix(diagram): make rendered diagrams byte-reproducible across runs

fix(query): count and restrict expressions with an empty primary key

fix(postgres): read primary and foreign keys from pg_catalog

fix(settings): environment variables beat datajoint.json for every setting

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

Issues