Issues

• Connections collected in a reference cycle are never returned to the pool on Python 3.15

  sqlalchemy/sqlalchemy#13738 · Filter by author josecsotomorales opened on Oct 29, 2026
  8

• render bind_expression around each literal_execute expanding value

  bugsql
  sqlalchemy/sqlalchemy#13732 · Filter by author CaselIT opened on Oct 27, 2026 · 2.0.x
  1

• declared_attr.cascading fails to typecheck under mypy / pyright on documented usage

  bugormtyping
  sqlalchemy/sqlalchemy#13731 · Filter by author KalininDL opened on Oct 27, 2026 · 2.0.x
  2

• Public read-only SessionTransaction.connections for already acquired connections

  code review in progressormuse case
  sqlalchemy/sqlalchemy#13685 · Filter by author lesnik512 opened on Oct 17, 2026 · 2.1.x
  25

• Document that asyncpg error messages no longer include DETAIL in 2.1

  sqlalchemy/sqlalchemy#13655 · Filter by author personage-hub opened on Oct 6, 2026

• Improve sa.Column automatic typing

  bugtyping
  sqlalchemy/sqlalchemy#13654 · Filter by author CaselIT opened on Oct 6, 2026 · 2.1.x
  11

• PostgreSQL multihost URL with bracketed IPv6 hosts raises ValueError: too many values to unpack

  bugenginepostgresql
  sqlalchemy/sqlalchemy#13637 · Filter by author HardMax71 opened on Oct 2, 2026 · 2.x.x
  6

• asyncpg dialect raises DBAPIError, not DataError, for SQLSTATE class 22 errors

  bugcode review in progressdialects
  sqlalchemy/sqlalchemy#13636 · Filter by author HardMax71 opened on Oct 2, 2026 · 2.0.x
  19

• named_dollar paramstyle

  dialectssqluse case
  sqlalchemy/sqlalchemy#13603 · Filter by author glyph opened on Sep 24, 2026 · 2.x.x
  9

• documentation bug

  documentation
  sqlalchemy/sqlalchemy#13594 · Filter by author sqlalchemy-reporter opened on Sep 16, 2026 · 2.0.x
  2

• Support UPDATE..RETURNING on MariaDB 13.0.1+ when MDEV-41113 can be fixed

  code review in progressdmlmariadbuse case
  sqlalchemy/sqlalchemy#13575 · Filter by author rusher opened on Sep 10, 2026 · 2.1.x
  7

• we dont close on GC connections that were detached (and weren't closed). should we?

  bugconnection pool
  sqlalchemy/sqlalchemy#13570 · Filter by author zzzeek opened on Sep 7, 2026 · 2.2
  7

• Add PostgreSQL row security DDL and reflection

  dialectspostgresqlrobots involved 🤖schema
  sqlalchemy/sqlalchemy#13517 · Filter by author Pedrexus opened on Aug 17, 2026 · 2.x.x
  12

• Investigate greenlet crash on T build

  external library/application issuessetup
  sqlalchemy/sqlalchemy#13501 · Filter by author CaselIT opened on Aug 11, 2026 · 2.0.x
  9

• mssql reflection drops fractional-seconds precision for DATETIME2/DATETIMEOFFSET/TIME columns

  bugcode review in progressreflectionSQL Server
  sqlalchemy/sqlalchemy#13497 · Filter by author Khan3K opened on Aug 11, 2026 · 2.0.x
  3

• Consider including column constraints on the table

  NO pull requests pleaseschemause case
  sqlalchemy/sqlalchemy#13480 · Filter by author CaselIT opened on Aug 5, 2026 · 2.2
  2

• audit of .replace-based sql literal rendering in the dialects

  bugrobots involved 🤖sql
  sqlalchemy/sqlalchemy#13469 · Filter by author dxbjavid opened on Jul 29, 2026 · 2.0.x
  4

• Cython batch instance processor — ~10–30% on most loads

  ormperformance
  sqlalchemy/sqlalchemy#13407 · Filter by author CaselIT opened on Jun 30, 2026 · 2.1.x

• use new _raw_all_tuples with subqueryloads

  ormperformance
  sqlalchemy/sqlalchemy#13406 · Filter by author CaselIT opened on Jun 30, 2026 · 2.1.x

• Modernize type annotations to PEP 604 union syntax

  typing
  sqlalchemy/sqlalchemy#13281 · Filter by author ashm-dev opened on May 7, 2026 · 2.1.x
  1

• im not sure we can type hybrid_methods fully

  bugquagmiretyping
  sqlalchemy/sqlalchemy#13253 · Filter by author zzzeek opened on Apr 21, 2026 · 2.1.x
  1

• Support for native JSON in mssql

  datatypesSQL Serveruse case
  sqlalchemy/sqlalchemy#13212 · Filter by author CaselIT opened on Mar 31, 2026 · 2.1.x
  11

• Applying a loader option to a parent relationship when using with_polymorphic does not work properly

  bugloader optionsorm
  sqlalchemy/sqlalchemy#13210 · Filter by author CaselIT opened on Mar 29, 2026 · 2.0.x
  6

• Immediateload fails to load when combined with inheritance

  bugfuzzerloader optionsorm
  sqlalchemy/sqlalchemy#13204 · Filter by author CaselIT opened on Mar 27, 2026 · 2.0.x
  10

• Connection pool soft invalidation uses time.time() comparison that can silently fail on low-resolution clocks (e.g. Windows ~16 ms)

  connection pooluse case
  sqlalchemy/sqlalchemy#13169 · Filter by author tejas-ae opened on Mar 13, 2026 · 2.x.x
  5