Compatibility: sqlalchemy now <2.1 (extras snowflake, databricks) Highlights Fixes GX on SQLAlchemy 2.1 — SQLAlchemy 2.1.0, released 2026-09-24, broke GX 1.23.1 and earlier on Python 3.11+, where every SQL extra resolves it by default. Depending on the backend, import great_expectations failed whenever snowflake-sqlalchemy was installed, every Databricks query failed, driverless postgresql:// URLs…
Highlights Spark now evaluates each regex independently with match_on="all" — On Spark, ExpectColumnValuesToMatchRegexList with match_on="all" now checks every regex separately against each column value, so patterns anchored at different positions (such as ^A and [0-9]{3}$) both match a value that satisfies them. This matches the behavior already seen on Pandas and SQL. (#12198) gxe.ExpectColumnVa…
[BUGFIX] Cache the SQL execution engine across calls instead of rebuilding it every time (#12148) [BUGFIX] query asset SQL ending in a comment fails validation (#12124) (thanks @nanjeshramesh) [BUGFIX] Wrap a query asset's SQL whole so Oracle does not add FROM DUAL (#12162) [BUGFIX] TupleFilesystemStoreBackend reads with ambient locale encoding (#12125) (thanks @nanjeshramesh) [BUGFIX] Make Expect…
[BUGFIX] Give the date-part string cast a length Oracle accepts (#12102) [BUGFIX] Add an Oracle branch to the dialect-regex helper (#12103) [BUGFIX] Render the derived-table alias in the form each grammar accepts (#12104) [BUGFIX] Restore the metrics coverage MySQL, SQL Server and Redshift were silently missing (#12107) [BUGFIX] Render Data Docs pages for results whose meta has no run_id (#12098)…
[FEATURE] SQL Harness Backend Framework (#12049) [FEATURE] Trino SQL backend test harness (#12050) [FEATURE] ClickHouse SQL backend test harness (#12053) [FEATURE] Ship agent-skill guidance for configuring data sources and expectations (#12061) [FEATURE] Harden the data-source skill's driver, cadence, and example guidance (#12062) [FEATURE] Gate project creation on the user having named the direct…
[BUGFIX] Support standing up a FileDataContext on a read-only filesystem (#12000) [BUGFIX] Narrow single-pass column_values.unique on SQLAlchemy (Redshift WLM) (#11863) (thanks @leodrivera) [BUGFIX] deduplicate sql metric aliases to prevent view schema collisions (#10926) (#11905) (thanks @TemidayoA) [BUGFIX] Report an unmet expectation when a column has no quantiles (#12026) [BUGFIX] Exclude null…
[FEATURE] Self-hosted CLA status check (#11985) [BUGFIX] Pin actions/checkout to v4.3.1 across workflows (#11988) [BUGFIX] Sync CLA labels directly from the CLA check, not via the status webhook (#11992) [BUGFIX] Render id/pk-only unexpected indices instead of raising (fixes #11933) (#11935) (thanks @anxkhn) [MAINTENANCE] Update CLA links (#11974) [MAINTENANCE] Ignore pyOpenSSL X509.get_subject de…
[FEATURE] Spark 4 support (#11969) [BUGFIX] Preserve date-like strings in SQL distinct value sets (#11947) (thanks @yuricavalcanti06) [BUGFIX] Reject empty regex_list in ExpectColumnValuesToMatchRegexList (#11958) (thanks @anxkhn) [BUGFIX] Fix broken link in issue assign welcome message (#11961) [DOCS] Enumerate Ephemeral Data Context use cases in type overview (#11931) (thanks @zozo123) [MAINTENA…
[BUGFIX] Fix .rdd usage in Spark distinct-values metrics for Spark Connect compatibility (#11922) [DOCS] Fix typos in the Run a Validation Definition guide (#11920) (thanks @zozo123) [MAINTENANCE] Fix pytest parametrize non-Collection iterable deprecation breaking scheduled CI (#11921) [MAINTENANCE] Fix BigQuery Python 3.13 collection error from NumPy 'generic' unit DeprecationWarning (#11924) [MA…
[BUGFIX] Regex angle brackets not HTML-escaped in Data Docs (#11909) [DOCS] Sync docs version label to released 1.18.0 (#11900) [DOCS] Remove gx cloud docs site (#11906) [MAINTENANCE] Temporarily skip bigquery tests (#11908) [MAINTENANCE] Temporarily skip snowflake integration tests (#11911)
[MINORBUMP] GX Cloud shutdown: raise on CloudDataContext construction and remove cloud test suites (#11894) [MAINTENANCE] Remove dead CodeSee architecture diagram workflow (#11886) [MAINTENANCE] Accept Snowflake parameterized BINARY observed type in type-list expectation test (#11892) [MAINTENANCE] Skip Microsoft Teams webhook integration tests during CI transition (#11893) [MAINTENANCE] Pull CI D…
[BUGFIX] Preserve boolean values passed to add_csv_asset (fixes #11206) (#11867) (thanks @EshwarCVS) [BUGFIX] Restore SQLAlchemy 1.4 compatibility in column_values_unique (fixes #11875) (#11876) (thanks @ranophoenix) [MAINTENANCE] [pre-commit.ci] pre-commit autoupdate (#11864) [MAINTENANCE] Bump fast-uri from 3.1.0 to 3.1.2 in /docs/docusaurus (#11872) [MAINTENANCE] Bump @babel/plugin-transform-mo…
[BUGFIX] Spark nested columns break unexpected_index_column_names (GX-3253) (#11835) [BUGFIX] Spark column names with dots not recognized in BatchData (GX-3274) (#11851) [BUGFIX] Fix docs-snippets CI broken by sqlalchemy-redshift 1.0.0 (#11857) [BUGFIX] Pydantic Field alias not respected during expectation validation (#11854) [BUGFIX] Avoid .toPandas() in Spark multicolumn unexpected values (#1163…
[FEATURE] Pass batch_definition_id to GET /expectation-parameters (#11831) [BUGFIX] Fix pact-broker command not found in record-release CI step (#11819) [BUGFIX] Fix SingleStoreDB expectations (#11828) [BUGFIX] Fix Spark metric strftime validation failing with timezone-aware formats (#11817) [BUGFIX] SQLAlchemy ignores strict_min/strict_max in column value lengths (GX-3252) (#11836) [BUGFIX] Spark…
[FEATURE] Add Pact contract tests for datasource API coverage gaps (#11813) [BUGFIX] Fix ExpectColumnValuesToMatchStrftimeFormat failing with timezone-aware formats (#11812) (thanks @choinhet) [DOCS] Clarify Python version support in compatibility reference (#11784) (thanks @Adeyinka1) [MAINTENANCE] Update Pact contract tests to align with Mercury API and use isolated org/workspace (#11797) [MAINT…
[MINORBUMP] Deprecate DBFS datasources (GX-2543) (#11759) [FEATURE] Remove deprecated legacy Pact contract tests (GX-3023) (#11768) [FEATURE] Migrate pact-python v2 → v3 (GX-3024) (#11769) [FEATURE] Add client-driven Pact contracts for validation definition and checkpoint CRUD (GX-2730) (#11757) [FEATURE] Add client-driven Pact contracts for expectation suite CRUD (GX-2729) (#11756) [FEATURE] Add…
[FEATURE] Refactor rest_contracts/conftest.py for client-driven Pact testing (GX-2725) (#11753) [DOCS] Small wording change (#11715) [DOCS] Add documentation for ValidationDefinition.get_unexpected_rows() (#11712) [MAINTENANCE] Add generic sql test harness (#11718) [MAINTENANCE] update schema names to be unique to prevent collision between CI runs (#11733) [MAINTENANCE] Pin localstack to 4.14.0 (#…
[DOCS] Expectation history (#11704) [MAINTENANCE] remove nested actions format (#11713) [MAINTENANCE] increase expectation parameter timeout (#11716)