This is a bug fix release for various issues discovered after we released 1.4.0.

What's Changed

• Fix attach to right DB when using DuckLake by @pdet in #19011
• set default value of MAIN_BRANCH_VERSIONING to false by @c-herrewijn in #19014
• ComplexJSON: parse all valid JSON correctly by @Mytherin in #19024
• Issue #19016: ICU Offset Parsing by @hawkfish in #19029
• Throw if we detect a quoted new line with the null padding set in parallel mode by @pdet in #19012
• Bump iceberg & ducklake by @carlopi in #19037
• Build Fix: unordered_map<enum class is not supported in all compilers, use map< instead by @Mytherin in #19046
• Disable emitting versioned libraries by default by @Mytherin in #19047
• Re-add aliased settings to duckdb_settings() view, and some fixes for aliased settings by @Mytherin in #19050
• Fix threading issues in metadata manager, and expand concurrent attach / detach fuzz test by @Mytherin in #19054
• Correctly re-align all child column segments of the ColumnData on Deserialize, and add logging to checkpoints by @Mytherin in #19055
• [unittest] Fixes so that '{BASE_TEST_NAME}' can be used within --on-new-connection by @carlopi in #19056
• add a bunch of expected error messages to old macro tests and fix iss… by @lnkuiper in #19042
• Always execute cast and try_cast if they are not invertible by @DinosL in #19010
• Switching core extension upload to dedicated credentials by @hannes in #19061
• Include BeginQuery in latency metric by @taniabogatsch in #19064
• [Dev] Bit of code cleanup in (parquet) ColumnWriter by @Tishj in #19063
• Add config: one_schema_per_test.json by @carlopi in #19059
• Change bucket name for core extensions by @hannes in #19083
• Moved test data into testing dir by @NiclasHaderer in #19102
• Bump httpfs by @carlopi in #19104
• Fix example syntax in variant_typeof() function by @krlmlr in #18977
• Avoid throwing on unset extension setting by @Mytherin in #19117
• Fix internal issue 5975 by @lnkuiper in #19101
• Properly initialize StringStats in Parquet reader by @lnkuiper in #19139
• Remove HTTPFS tests and setup scripts by @Mytherin in #19140
• Validate JSON in Parquet reader by @lnkuiper in #19143
• Fix bug in merge into when condition is in parenthesis by @pdet in #19137
• Allow implicit casts from JSON[] to JSON again by @lnkuiper in #19141
• [ci] Change logic for saving caches: Github variable that decides what gets cached by @carlopi in #19150
• Fix handling of quotes in ToString() of search_path in current_setting by @Mytherin in #19162
• Delay throwing NotImplementedException in ExpressionBinder by @lnkuiper in #19153
• Issue #18303: AsOf NLJ Nulls by @hawkfish in #19173
• HTTPUtil: response might be null, perform check by @carlopi in #19179
• Handle malformed schema index in Parquet reader by @Mytherin in #19191
• ATTACH IF NOT EXISTS: avoid looping waiting for DETACH to finish, wait only for an ATTACH operation to finish by @Mytherin in #19193
• Implement duckdb_connection_count table function by @taniabogatsch in #19187
• Disable ALP for non-default block sizes by @taniabogatsch in #19197
• Check for unresolved parameters when binding CREATE MACRO ... AS TABLE by @lnkuiper in #19196
• https://duckdb-blobs.s3.amazonaws.com -> https://blobs.duckdb.org by @carlopi in #19206
• [chore] Attempt at restoring workflow for MinGW Static libs by @carlopi in #19205
• Simple no default region return 301 response by @Tmonster in #19087
• [Fix] Correctly reset the gate status during ART merging by @taniabogatsch in #19204
• build spatial extension for mingw by @c-herrewijn in #19207
• Fixup templated version of TryGetSecretKeyOrSetting by @carlopi in #19218
• Bump: delta by @samansmink in #19220
• Autoloading helper file system: allow either autoloading or proper errors in more file operations by @carlopi in #19198
• Eargerly destroy sort buffers in Window by @lnkuiper in #19224
• [Transaction] Delete and drop of a table can now happen in the same transaction without error by @Tishj in #18918
• PRAGMA's MissingEntry: Suggest CALL might be an option by @carlopi in #18815
• Bump: aws, ducklake, iceberg by @samansmink in #19228
• Issue 18603 by @Tmonster in #19227
• Bump DuckLake to latest of V1.4 by @pdet in #19237
• Bump mysql and sqlite by @staticlibs in #19240
• Don't write parquet-native GEOMETRY by default, add option to control GeoParquet version by @Maxxen in #19244
• When executing a relation, generate a query to set if it is not a query relation by @Mytherin in #19234
• add support for writing geoparquet with v2 metadata too by @Maxxen in #19246
• Bump: iceberg by @samansmink in #19250
• Bump: avro, httpfs by @samansmink in #19248
• bump duckdb-azure ref for 1.4.1 by @benfleis in #19275

Full Changelog: v1.4.0...v1.4.1