DuckDB 1.5.0 release notes

This release of DuckDB is named "Variegata" after the paradise shelduck Tadorna Variegata, also known as the paradise duck, a species of Shelduck (a group of goose-like ducks), endemic to New Zealand.

Please also refer to the announcement blog post: https://duckdb.org/2026/03/09/announcing-duckdb-150.html

What's Changed

Optimize LAST aggregate to iterate backward within batches by @xe-nvdk
Allow user type with schema defined to have array bounds by @Dtenwolde in https://github.com/duckdb/duckdb/pull/18342
Remove case-insensitive character from grammar files by @Dtenwolde in https://github.com/duckdb/duckdb/pull/18948
Fix query() function error message for PIVOT statements without explicit IN clauses by @shivampr in https://github.com/duckdb/duckdb/pull/18900
Merge v1.4-andium into main by @c-herrewijn in https://github.com/duckdb/duckdb/pull/18952
[Dev] Some light code cleanup in RemoveUnusedColumns::VisitOperator by @Tishj in https://github.com/duckdb/duckdb/pull/18964
Support renaming a database - ALTER DATABASE <> RENAME TO <> by @abramk in https://github.com/duckdb/duckdb/pull/18970
V1.4 andium by @Mytherin in https://github.com/duckdb/duckdb/pull/18982
Fix field id uniqueness for alter database by @abramk in https://github.com/duckdb/duckdb/pull/18988
Fix unused variable warnings by @mlafeldt in https://github.com/duckdb/duckdb/pull/18913
Avoid adding a TupleDataChunkPart with only one row. by @lance5401 in https://github.com/duckdb/duckdb/pull/18904
Tiny fix for ColumnDataAllocator::ColumnDataAllocator by @baolinhuang in https://github.com/duckdb/duckdb/pull/18990
Fixes for ALTER DATABASE - use serialization framework, and fix stringification of identifiers by @Mytherin in https://github.com/duckdb/duckdb/pull/18994
Expected errors 2053 by @hmeriann in https://github.com/duckdb/duckdb/pull/18960
Fix union semantics in recursive CTEs by @cryoEncryp in https://github.com/duckdb/duckdb/pull/19017
Multifile parquet_metadata and friends parallelism by @J-Meyers in https://github.com/duckdb/duckdb/pull/18854
[Optimize] use StorageLock for CompressionFunction by @baolinhuang in https://github.com/duckdb/duckdb/pull/19028
PEG grammar updates by @Dtenwolde in https://github.com/duckdb/duckdb/pull/19031
Rework Compression Function registration to avoid grabbing locks by @Mytherin in https://github.com/duckdb/duckdb/pull/19045
Merge v1.4 into main by @Mytherin in https://github.com/duckdb/duckdb/pull/19048
[C-API] default to adding overload on conflict when registering functions by @Maxxen in https://github.com/duckdb/duckdb/pull/19036
Destroy row groups in parallel by @Mytherin in https://github.com/duckdb/duckdb/pull/19053
Switching core extension upload to dedicated credentials by @hannes in https://github.com/duckdb/duckdb/pull/19060
CI: Increase stale bot timeout to 1 year by @szarnyasg in https://github.com/duckdb/duckdb/pull/19000
Revert "set default value of MAIN_BRANCH_VERSIONING to false" by @c-herrewijn in https://github.com/duckdb/duckdb/pull/19057
Fix extension load by @dentiny in https://github.com/duckdb/duckdb/pull/19079
Change core extensions bucket name by @hannes in https://github.com/duckdb/duckdb/pull/19082
Merge v1.4 into main by @Mytherin in https://github.com/duckdb/duckdb/pull/19098
Allow directory override for extension build by @Mytherin in https://github.com/duckdb/duckdb/pull/19110
Skip serialization of row_start in DataPointer when targeting latest storage by @Mytherin in https://github.com/duckdb/duckdb/pull/19111
[C-API] Initial support for accessing file system by @Maxxen in https://github.com/duckdb/duckdb/pull/19086
Rework UNION (ALL) operators (SetOperationNode/LogicalSetOperation/PhysicalUnion) to have multiple children by @Mytherin in https://github.com/duckdb/duckdb/pull/19109
pushdown filter when doing cross or lateral join with unnest by @DinosL in https://github.com/duckdb/duckdb/pull/19085
Fix unholy interaction between CREATE VIEW and CTE definitions by @kryonix in https://github.com/duckdb/duckdb/pull/19116
Add support for read_duckdb - a function that allows reading / globbing DuckDB database files by @Mytherin in https://github.com/duckdb/duckdb/pull/19108
Fix typo by @szarnyasg in https://github.com/duckdb/duckdb/pull/19130
fix: check tree depth and flatten dep join for custom operator extension by @Wal8800 in https://github.com/duckdb/duckdb/pull/19094
During optimistic writing, gather N row groups and write them at the same time column-at-a-time by @Mytherin in https://github.com/duckdb/duckdb/pull/19118
Remove unused code by @szarnyasg in https://github.com/duckdb/duckdb/pull/19134
Add support for late materialization and filter pushdown to read_duckdb by @Mytherin in https://github.com/duckdb/duckdb/pull/19145
Move storage block prefetching to an option instead of baking in testing during ALTERNATIVE_VERIFY + add a test config for this option by @Mytherin in https://github.com/duckdb/duckdb/pull/19146
Introduce parser_override_function_t by @Dtenwolde in https://github.com/duckdb/duckdb/pull/19126
Perform deduplication based on join_keys when building ht by @tianjq16 in https://github.com/duckdb/duckdb/pull/19097
Print help to stdout by @staticlibs in https://github.com/duckdb/duckdb/pull/19170
Validate filesystem registration by @dentiny in https://github.com/duckdb/duckdb/pull/19168
Fix missing replacement scan code for CTEs by @kryonix in https://github.com/duckdb/duckdb/pull/19159
Correctly set row start in WAL replay by @Mytherin in https://github.com/duckdb/duckdb/pull/19192
Use a PartialBlockManager per column, instead of sharing one over the entire row group by @Mytherin in https://github.com/duckdb/duckdb/pull/19194
Internal #5380: AsOf Join Pipeline by @hawkfish in https://github.com/duckdb/duckdb/pull/19169
Cross and lateral join pushdown with unnest or json - update by @DinosL in https://github.com/duckdb/duckdb/pull/19152
Missing error messages for test cases by @hmeriann in https://github.com/duckdb/duckdb/pull/19129
[Profiling] Move EXTRA_INFO into the metrics map by @maiadegraaf in https://github.com/duckdb/duckdb/pull/19124
Common Subplan Elimination by @lnkuiper in https://github.com/duckdb/duckdb/pull/19080
GEOMETRY Rework: Part 1 - Logical Type by @Maxxen in https://github.com/duckdb/duckdb/pull/19136
[Parquet] Implement (unshredded) VARIANT support for COPY TO parquet by @Tishj in https://github.com/duckdb/duckdb/pull/19125
Add more missing error messages to test cases by @hmeriann in https://github.com/duckdb/duckdb/pull/19210
[CI] - Fix failing Extension updating test NightlyTests job by cleaning up some space on the runner by @hmeriann in https://github.com/duckdb/duckdb/pull/19214
Inconsistent semicolon handling by @Dtenwolde in https://github.com/duckdb/duckdb/pull/19199
Internal #5383: Range Join Sorting by @hawkfish in https://github.com/duckdb/duckdb/pull/19174
[Profiling] Add QueryContext to more functions, for Reads by @maiadegraaf in https://github.com/duckdb/duckdb/pull/18726
Merge v1.4-andium into main by @Maxxen in https://github.com/duckdb/duckdb/pull/19225
[shell] Fix tilde parsing for .once statement by @dentiny in https://github.com/duckdb/duckdb/pull/19254
Partially remove BoundQueryNode - have Bind directly emit a BoundStatement by @Mytherin in https://github.com/duckdb/duckdb/pull/19289
Binder clean-up by @Mytherin in https://github.com/duckdb/duckdb/pull/19293
test: add test for CREATE TABLE with my_schema.my_enum[] by @NickCrews in https://github.com/duckdb/duckdb/pull/19296
Fix uncaught exception in test_empty_profiling_settings.test by @maiadegraaf in https://github.com/duckdb/duckdb/pull/19286
GEOMETRY Rework: Part 2 - Statistics by @Maxxen in https://github.com/duckdb/duckdb/pull/19203
Internal #5380: AsOf Sorting Conversion by @hawkfish in https://github.com/duckdb/duckdb/pull/19278
Add option for opt-in to parser override by @Dtenwolde in https://github.com/duckdb/duckdb/pull/19181
Remove BoundTableRef and make binding a TableRef directly return a BoundStatement by @Mytherin in https://github.com/duckdb/duckdb/pull/19294
Rewrite Grouped Top-N Window Functions To Aggregations by @d-justen in https://github.com/duckdb/duckdb/pull/19280
Perform optimistic reads while filling gaps in CachingFileSystem by @carlopi in https://github.com/duckdb/duckdb/pull/19122
Issue #19027: AsOf Join Predicates by @hawkfish in https://github.com/duckdb/duckdb/pull/19316
Enable experimental metadata re-use by default by @Mytherin in https://github.com/duckdb/duckdb/pull/19317
Binder: BoundQueryNode cleanup by @Mytherin in https://github.com/duckdb/duckdb/pull/19322
Remove old sort code by @lnkuiper in https://github.com/duckdb/duckdb/pull/19321
[Parquet] Implement shredded VARIANT support for COPY TO parquet by @Tishj in https://github.com/duckdb/duckdb/pull/19219
Merge andium into main by @Tishj in https://github.com/duckdb/duckdb/pull/19325
[C API] Expose column count and type for table description by @taniabogatsch in https://github.com/duckdb/duckdb/pull/19334
Relocate the python sqllogic code to the dedicated repository by @Tishj in https://github.com/duckdb/duckdb/pull/19340
Binder: Rework the way set operations work so that we can use the standard binding flow by @Mytherin in https://github.com/duckdb/duckdb/pull/19342
Rework CTE binding: remove CTENode, and bind CommonTableExpressionMap directly instead by @Mytherin in https://github.com/duckdb/duckdb/pull/19351
Avoid keeping shared ptr to ClientContext in QueryContext by @Mytherin in https://github.com/duckdb/duckdb/pull/19353
Internal #6190: AsOf Threading by @hawkfish in https://github.com/duckdb/duckdb/pull/19328
[Indexes] Buffer Managed Indexes Part 4: Segment Handles for Base Leaf by @artjomPlaunov in https://github.com/duckdb/duckdb/pull/19303
Provide force assertion macros by @dentiny in https://github.com/duckdb/duckdb/pull/19212
Parse result for PEG transformer by @Dtenwolde in https://github.com/duckdb/duckdb/pull/19229
Allow * NOT SIMILAR TO 'pattern' by @Dtenwolde in https://github.com/duckdb/duckdb/pull/19232
[C API] Improve documentation on list vectors by @taniabogatsch in https://github.com/duckdb/duckdb/pull/19349
Make Binding CTEs lazy, and other CTE binding refactors by @Mytherin in https://github.com/duckdb/duckdb/pull/19372
Internal #6210: IEJoin Threading by @hawkfish in https://github.com/duckdb/duckdb/pull/19361
[CI] Move two test cases from duckdb-httpfs repo by @hmeriann in https://github.com/duckdb/duckdb/pull/19368
[C API] Update misleading "use instead" by @taniabogatsch in https://github.com/duckdb/duckdb/pull/19371
Enable -Wtype-limits warning and fix warnings by @hannes in https://github.com/duckdb/duckdb/pull/19382
[Profiling] Add metrics for ATTACH / CHECKPOINT / WAL replay by @taniabogatsch in https://github.com/duckdb/duckdb/pull/19367
Update issue template by @szarnyasg in https://github.com/duckdb/duckdb/pull/19384
Not building imdb all the time by @hannes in https://github.com/duckdb/duckdb/pull/19388
CSV Reader: make line reconstruction deal with buffer_pos == buffer_size by @Mytherin in https://github.com/duckdb/duckdb/pull/19390
[Dev] variant_extract BindData copy fix by @Tishj in https://github.com/duckdb/duckdb/pull/19394
[Dev] Add a VARIANT visitor class by @Tishj in https://github.com/duckdb/duckdb/pull/19387
Switch RowVersionManager to using the FixedSizeAllocator by @Mytherin in https://github.com/duckdb/duckdb/pull/19392
[Profiling][CAPI] Add appender profiling test by @maiadegraaf in https://github.com/duckdb/duckdb/pull/19383
Use statement for PEG Parser transformer by @Dtenwolde in https://github.com/duckdb/duckdb/pull/19302
old_transactions is no longer necessary by @Captain32 in https://github.com/duckdb/duckdb/pull/19381
Add Null Support for TopNWindowElimination Rule by @d-justen in https://github.com/duckdb/duckdb/pull/19370
Use const references in exceptions varargs by @maiadegraaf in https://github.com/duckdb/duckdb/pull/18723
Merge v1.4-andium into main by @Mytherin in https://github.com/duckdb/duckdb/pull/19402
[Variant] Implement comparison operation logic for Variant columns by @Tishj in https://github.com/duckdb/duckdb/pull/19337
Implement std::allocator that uses ArenaAllocator by @lnkuiper in https://github.com/duckdb/duckdb/pull/19412
[CI] Correct file path in test case by @hmeriann in https://github.com/duckdb/duckdb/pull/19429
[C API] Patch C API query progress documentation by @taniabogatsch in https://github.com/duckdb/duckdb/pull/19430
Fixes .dump command failing with ROLLBACK when dumping tables in non-default schemas. by @shivampr in https://github.com/duckdb/duckdb/pull/19363
[C API] Extend documentation around header generation by @taniabogatsch in https://github.com/duckdb/duckdb/pull/19433
Internal #6270: Fix small binary fallback values for arg_min/max_nulls_last by @d-justen in https://github.com/duckdb/duckdb/pull/19434
Merge v1.4 into main by @Mytherin in https://github.com/duckdb/duckdb/pull/19438
SET statement for PEG Transformer by @Dtenwolde in https://github.com/duckdb/duckdb/pull/19320
Add DuckDB::String to operators by @maiadegraaf in https://github.com/duckdb/duckdb/pull/19423
Make cached hashes thread-safe and emit dictionary vectors from Perfect Hash Join by @lnkuiper in https://github.com/duckdb/duckdb/pull/19332
fix: make GetCachedHashes thread safe by @0ax1 in https://github.com/duckdb/duckdb/pull/19274
[Profiling] Enable ATTACH / CHECKPOINT / WAL replay metrics by default by @maiadegraaf in https://github.com/duckdb/duckdb/pull/19436
Update / simplify issue template by @szarnyasg in https://github.com/duckdb/duckdb/pull/19442
Move FORCE_ASYNC_SINK_SOURCE from Nightly to Main by @carlopi in https://github.com/duckdb/duckdb/pull/19452
Fix WITH ORDINALITY virtual columns by @niykko in https://github.com/duckdb/duckdb/pull/19315
Internal #6196: AsOf Prefix Comparisons by @hawkfish in https://github.com/duckdb/duckdb/pull/19456
Add safe queue and deque by @dentiny in https://github.com/duckdb/duckdb/pull/19273
:gift_heart: duckdb now has its endoflife.date page :hourglass_flowing_sand: by @adriens in https://github.com/duckdb/duckdb/pull/19450
Fix wording in README by @lnkuiper in https://github.com/duckdb/duckdb/pull/19462
[C-API] Add support for defining config options (settings) by @Maxxen in https://github.com/duckdb/duckdb/pull/19473
Internal #6196: AsOf Prefix Comparisons by @hawkfish in https://github.com/duckdb/duckdb/pull/19466
Internal #6196: AsOf Prefix Comparisons by @hawkfish in https://github.com/duckdb/duckdb/pull/19484
[TPCH] fix load.sql to produce valid test data by @hmeriann in https://github.com/duckdb/duckdb/pull/19441
[minor] Add catalog type to exception by @dentiny in https://github.com/duckdb/duckdb/pull/19488
GEOMETRY Rework: Part 3 - Filter pushdown by @Maxxen in https://github.com/duckdb/duckdb/pull/19439
[minor] Address test compilation warnings by @dentiny in https://github.com/duckdb/duckdb/pull/19492
Fix issue #17941: Cryptic error message when dropping a column part of a unique constraint. by @arjanssuri in https://github.com/duckdb/duckdb/pull/19465
[Optimizer] Support constant order normalization by @doublefish5106 in https://github.com/duckdb/duckdb/pull/19494
Use Late Materialization in TopNWindowElimination Optimizer by @d-justen in https://github.com/duckdb/duckdb/pull/19463
Internal #6326: AsOf Join Copying by @hawkfish in https://github.com/duckdb/duckdb/pull/19505
[swift] fix microseconds conversion to seconds by @kokluch in https://github.com/duckdb/duckdb/pull/19486
Fix bug initializing std::vector for column names in ADBC API by @CurtHagenlocher in https://github.com/duckdb/duckdb/pull/19444
Remove empty lines at the start of code blocks by @lnkuiper in https://github.com/duckdb/duckdb/pull/19519
Merge v1.4 into main by @Mytherin in https://github.com/duckdb/duckdb/pull/19528
Fix failing python replacement scan by @evertlammerts in https://github.com/duckdb/duckdb/pull/19509
Adds parquet_full_metadata function by @J-Meyers in https://github.com/duckdb/duckdb/pull/19148
[Profiling] Add WAL_REPLAY_ENTRY_COUNT and COMMIT_WRITE_WAL_LATENCY metrics by @maiadegraaf in https://github.com/duckdb/duckdb/pull/19524
Convert CLI to use C++ API, and remove sqlite API wrappers by @Mytherin in https://github.com/duckdb/duckdb/pull/19536
Adding release name for 1.5 by @hannes in https://github.com/duckdb/duckdb/pull/19540
CLI: Generate ".help" menu from the list of commands, and add syntax highlighting to .help by @Mytherin in https://github.com/duckdb/duckdb/pull/19542
CLI: Refactor command-line parameters into a struct similar to MetadataCommands, and add better errors + syntax highlighting by @Mytherin in https://github.com/duckdb/duckdb/pull/19544
Delete Statement and expression associativity for PEG Transformer by @Dtenwolde in https://github.com/duckdb/duckdb/pull/19507
Attach statement for PEG transformer by @Dtenwolde in https://github.com/duckdb/duckdb/pull/19460
Augment Table API function via context stored in AsyncResult object by @carlopi in https://github.com/duckdb/duckdb/pull/19422
Add COLUMNS() expansion support to DISTINCT ON by @shivampr in https://github.com/duckdb/duckdb/pull/19550
Retain recursive unnest column names by @DinosL in https://github.com/duckdb/duckdb/pull/19310
Adds struct variant to regexp_extract_all by @J-Meyers in https://github.com/duckdb/duckdb/pull/19078
CLI: Make last query result queryable through the _ token by @Mytherin in https://github.com/duckdb/duckdb/pull/19553
CLI: rework .import to use built-in readers by @Mytherin in https://github.com/duckdb/duckdb/pull/19563
Count also time blocked waiting for the lock in BLOCKED_THREADS_TIME by @carlopi in https://github.com/duckdb/duckdb/pull/19547
Change format_version to 2 when specify V2 for PARQUET_VERSION by @koron in https://github.com/duckdb/duckdb/pull/18855
Fix: list_concat(NULL) returns NULL by @maiadegraaf in https://github.com/duckdb/duckdb/pull/19565
CLI: More shell code refactoring, remove global variables and split commands into separate files by @Mytherin in https://github.com/duckdb/duckdb/pull/19568
Consdier offset in topn optimizer by @ZENOTME in https://github.com/duckdb/duckdb/pull/19561
Fix Issue #19487: array_to_string on empty list return NULL instead of empty string by @arjanssuri in https://github.com/duckdb/duckdb/pull/19548
CLI: Add support for dynamic prompts by @Mytherin in https://github.com/duckdb/duckdb/pull/19579
Custom Order Row Group Scans by @d-justen in https://github.com/duckdb/duckdb/pull/19537
Added missing return code checks for ADBC test cases by @hannes in https://github.com/duckdb/duckdb/pull/19576
CLI: Make startup-text display configurable using the .startup_text by @Mytherin in https://github.com/duckdb/duckdb/pull/19584
CLI: Unify all highlighting color code, add support for extended (8-bit) colors and add .display_colors command by @Mytherin in https://github.com/duckdb/duckdb/pull/19587
Replace deprecated header by @krlmlr in https://github.com/duckdb/duckdb/pull/19602
const-safe: Add const handling for list_entry_t by @krlmlr in https://github.com/duckdb/duckdb/pull/19603
Fix uninitialized physical_type in move constructor by @krlmlr in https://github.com/duckdb/duckdb/pull/19604
Fix uninitialized variable in multi-file progress tracking by @krlmlr in https://github.com/duckdb/duckdb/pull/19597
Fix uninitialized members in CachedFile constructor by @krlmlr in https://github.com/duckdb/duckdb/pull/19598
Fix uninitialized members in HashJoinGlobalSourceState by @krlmlr in https://github.com/duckdb/duckdb/pull/19599
[C API] Generate description, deprecated, and use_instead for function groups by @taniabogatsch in https://github.com/duckdb/duckdb/pull/19586
Merge v1.4-andium into main by @carlopi in https://github.com/duckdb/duckdb/pull/19589
CLI: Sort .display_colors by group / hue / luminosity by @Mytherin in https://github.com/duckdb/duckdb/pull/19610
Use std::remove_cv for physical type id fetching by @dentiny in https://github.com/duckdb/duckdb/pull/19614
[C-API] Initial support for defining COPY functions by @Maxxen in https://github.com/duckdb/duckdb/pull/19186
Apply RemoveUnusedColumns below table in out functions by @geoffxy in https://github.com/duckdb/duckdb/pull/19474
Fix uninitialized sorted_tuples member by @krlmlr in https://github.com/duckdb/duckdb/pull/19593
Array comparison optimization by @EslamAhmed171 in https://github.com/duckdb/duckdb/pull/19591
Python SQLLogicTest - show results in a consistent order by @DinosL in https://github.com/duckdb/duckdb/pull/19562
Add missing description to copy CAPI by @lnkuiper in https://github.com/duckdb/duckdb/pull/19617
Speed up Dictionary and DICT_FSST compression by replacing std::unordered_map with PrimitiveDictionary by @yan-alex in https://github.com/duckdb/duckdb/pull/19577
CLI: Display auto-complete suggestions when tabbing through them by @Mytherin in https://github.com/duckdb/duckdb/pull/19626
Allow Table function to opt-in to return arbitrary combinations of [0, output.size()] x [HAVE_MORE_OUTPUT, FINISHED] by @carlopi in https://github.com/duckdb/duckdb/pull/19566
Add a Mermaid Flowchart transformer for EXPLAIN output by @tobilg in https://github.com/duckdb/duckdb/pull/19581
Add recovery mode to ATTACH options and enable NO_WAL mode by @taniabogatsch in https://github.com/duckdb/duckdb/pull/19612
feat: add --sql option to .open in the cli client by @hello-world-bfree in https://github.com/duckdb/duckdb/pull/19445
[ART] Pretty Printer + Verify by @artjomPlaunov in https://github.com/duckdb/duckdb/pull/19558
Internal #6341: AsOf Parallelism by @hawkfish in https://github.com/duckdb/duckdb/pull/19605
Add window functions to duckdb_functions by @Tishj in https://github.com/duckdb/duckdb/pull/19532
CLI: Fix cursor rendering in multi-line editing mode by @Mytherin in https://github.com/duckdb/duckdb/pull/19649
CLI: Eagerly open database also if it does not exist by @Mytherin in https://github.com/duckdb/duckdb/pull/19627
CLI: Make the progress bar configurable by @Mytherin in https://github.com/duckdb/duckdb/pull/19650
Encapsulate BaseScalarFunction properties by @Maxxen in https://github.com/duckdb/duckdb/pull/19632
Buffer-managed query results by @lnkuiper in https://github.com/duckdb/duckdb/pull/19437
[ART] Iterative Iterator by @artjomPlaunov in https://github.com/duckdb/duckdb/pull/19521
CI Fuzzer runtime error by @DinosL in https://github.com/duckdb/duckdb/pull/19630
Guard printing for bignum by @krlmlr in https://github.com/duckdb/duckdb/pull/19600
Don't truncate test names to 80 characters by @JelteF in https://github.com/duckdb/duckdb/pull/19642
[Parquet] Emit VARIANT from Parquet VARIANT columns, instead of JSON by @Tishj in https://github.com/duckdb/duckdb/pull/18996
CLI: Make Linenoise work on Windows by @Mytherin in https://github.com/duckdb/duckdb/pull/19659
Issue #19499: HashedSort Sorting Memory by @hawkfish in https://github.com/duckdb/duckdb/pull/19664
Fix incorrect partition calculation due to missing vector_type by @tianjq16 in https://github.com/duckdb/duckdb/pull/19638
CLI - store action as just a char to avoid sanitizer complaints by @Mytherin in https://github.com/duckdb/duckdb/pull/19679
Merge v1.4 into main by @Mytherin in https://github.com/duckdb/duckdb/pull/19670
More arena_stl_allocator integration by @lnkuiper in https://github.com/duckdb/duckdb/pull/19677
Fix z/OS-specific issues by @DNikolaevAtRocket in https://github.com/duckdb/duckdb/pull/19641
CLI - Add paging support for output by @Mytherin in https://github.com/duckdb/duckdb/pull/19676
GEOMETRY Rework: Part 4 - Fixup Parquet Extension + Add Arrow Support by @Maxxen in https://github.com/duckdb/duckdb/pull/19476
SegmentTree: move next and index out of SegmentBase and into SegmentNode by @Mytherin in https://github.com/duckdb/duckdb/pull/19686
Add Clear method to BaseAppender by @EtgarDev in https://github.com/duckdb/duckdb/pull/19623
Handle edge case for date_trunc optimization by @rcurtin in https://github.com/duckdb/duckdb/pull/19628
fix checkpointing on files that dont exist by @dioptre in https://github.com/duckdb/duckdb/pull/19344
Fix: Correct typos in comments and error messages by @feichai0017 in https://github.com/duckdb/duckdb/pull/19257
Fix compiler warnings on main by @lnkuiper in https://github.com/duckdb/duckdb/pull/19690
Issue #19499: HashedSort Sorting Memory by @hawkfish in https://github.com/duckdb/duckdb/pull/19687
Internal #6519: HashedSort Memory Footprint by @hawk

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