new

Neo4j Aura September 2026 Release

Database

The performance of re-scored binary quantization (AKA High Fidelity Quantized vector search) and scalar quantization is significantly improved. A re-scored binary reduces latency by approximately 5x and increases query throughput by 5x. Indexes built before v2026.08 that aren't regularly updated, must be re-created in order to get the full benefit. See Vector indexes - Cypher Manual.

🚀 New Cypher 25 features

Cypher now supports native full-text search through the new
SEARCH
clause for simple node and relationship patterns. See the Cypher Manual -> Query full-text indexes.
The functions
toString()
,
toStringList()
and
toStringOrNull()
have been updated to accept
LIST
,
MAP
,
NODE
,
RELATIONSHIP
and
PATH
types. See the Cypher Manual -> String functions.
Introduced map comprehension, which allows the creation of a
MAP
value by iterating over an existing
MAP
or
LIST
e.g
{k: v IN map | keyExpression: valueExpression}
. See the Cypher Manual -> Map comprehension.
Add
AS COMMANDS
for
SHOW USERS
and
SHOW ROLES
, to get a create role/user or grant role to user/auth rule command string that can be executed to recreate the current setup of roles, users and their assignments. See Operations Manual -> Manage users and Manage roles.
Add new
AUTH RULES

authRule
filter to
SHOW PRIVILEGES [AS COMMANDS]
to filter on privileges assigned to roles granted to the given auth rules, similar to the existing
USERS
or
ROLES
filters. Also add some useful columns to the
SHOW PRIVILEGES AS COMMANDS
to be able to filter the commands on. See Operations Manual -> Role-based access control.

🛠️ Bug fixes

The page cache now reserves its full configured memory at startup and is guaranteed never to exceed
server.memory.pagecache.size
$any
dynamic type evaluation on a list containing invalid elements in the list tail will now correctly throw instead of short-circuit accept on the list head, and the error message now no longer erroneously suggests that
LIST<LIST<STRING NOT NULL>>
is an accepted outer list type.
A division by zero is now raising a clean division-by-zero arithmetic error instead of a previous overflow/out-of-range

For full details of all updates and fixes in this release, as well as links to relevant documentation please visit: Release Notes: Neo4j Aura Database – September 2026.