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https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
66
- In AzureBlobStorage, for native copy we compare authentication methods, during which if we get an exception, updated the code to fallback to read and copy (i.e. non native copy). [#82693](https://github.com/ClickHouse/ClickHouse/pull/82693) ([Smita Kulkarni](https://github.com/SmitaRKulkarni)). - Fix deserialization ...
[ 0.023547746241092682, -0.004295571707189083, -0.01638104021549225, -0.002719045151025057, 0.043949857354164124, 0.014555979520082474, 0.0010822393232956529, 0.02307293377816677, 0.0281771719455719, 0.017894506454467773, -0.03347430005669594, -0.0035685147158801556, 0.009985906071960926, -0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
67
- Disable bounds-based file pruning for iceberg array element and iceberg map values, including all their nested subfields. [#83520](https://github.com/ClickHouse/ClickHouse/pull/83520) ([Daniil Ivanik](https://github.com/divanik)). - Fix possible file cache not initialized errors when it's used as a temporary data sto...
[ 0.037723395973443985, -0.01611010916531086, -0.022219818085432053, -0.008358320221304893, 0.04580063745379448, 0.015311259776353836, -0.009697130881249905, 0.010629121214151382, 0.03145095705986023, 0.0032027901615947485, -0.04701370373368263, -0.0005177721031941473, 0.0037908311933279037, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
68
#### Build/Testing/Packaging Improvement[​](#buildtestingpackaging-improvement-5 "Direct link to Build/Testing/Packaging Improvement") - Build a minimal C library (10 KB) for the ClickHouse lexer. This is needed for [#80977](https://github.com/ClickHouse/ClickHouse/issues/80977). [#81347](https://github.com/ClickHouse...
[ 0.020281750708818436, -0.013623524457216263, -0.010073469020426273, -0.01924819126725197, 0.03217518702149391, 0.004362673498690128, -0.011893434450030327, 0.022528622299432755, 0.02317272499203682, 0.010904811322689056, -0.0340026393532753, -0.003418987849727273, 0.04448803514242172, -0.0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
69
#### New Feature[​](#new-feature-6 "Direct link to New Feature") - New data types: `Time` ([H]HH:MM:SS) and `Time64` ([H]HH:MM:SS[.fractional]), and some basic cast functions and functions to interact with other data types. Added settings for compatibility with the existing function `toTime`. The setting `use_legacy_t...
[ -0.0002284381043864414, -0.005872223060578108, -0.04046368971467018, -0.0053037069737911224, 0.051467228680849075, 0.002340086502954364, -0.03485921770334244, 0.015287586487829685, 0.0295335054397583, 0.006983580999076366, -0.011150254867970943, 0.01575707085430622, 0.03497659042477608, -0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
70
#### Experimental Feature[​](#experimental-feature-6 "Direct link to Experimental Feature") - Implement Kafka rebalance like logic for `Kafka2` using ClickHouse Keeper For each replica we support two types of partition locks: permanent locks and temporary locks. The replica tries to hold permanent locks as long as pos...
[ 0.004877631086856127, -0.01959914155304432, -0.001958806300535798, 0.0015747990692034364, 0.0513978973031044, -0.001910805469378829, -0.028623312711715698, 0.0015434138476848602, 0.04135463014245033, -0.0038142262492328882, -0.023143824189901352, 0.009445101954042912, 0.030631965026259422, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
71
- `EXPLAIN SYNTAX` now uses a new analyzer. It returns AST built from the query tree. Added option `query_tree_passes` to control the number of passes to executed before converting query tree to the AST. [#74536](https://github.com/ClickHouse/ClickHouse/pull/74536) ([Vladimir Cherkasov](https://github.com/vdimir)). - I...
[ 0.010757001116871834, -0.00860707275569439, -0.0224858857691288, -0.00430721789598465, 0.03545907884836197, 0.007200784981250763, -0.022353356704115868, 0.011868778616189957, 0.041172586381435394, 0.010521392337977886, -0.04441220313310623, 0.01733195036649704, 0.027389489114284515, -0.027...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
72
- Do not complain about unsupported `MADV_POPULATE_WRITE` for older kernels in logs (to avoid logs polluting). [#80704](https://github.com/ClickHouse/ClickHouse/pull/80704) ([Robert Schulze](https://github.com/rschu1ze)). - Added support for `Date32` and `DateTime64` in `TTL` expressions. [#80710](https://github.com/Cl...
[ 0.023462707176804543, -0.023252950981259346, -0.02759789675474167, 0.006659753154963255, 0.048483602702617645, 0.012353130616247654, -0.022953299805521965, 0.017574556171894073, 0.026594065129756927, 0.00996340997517109, -0.02852681651711464, 0.01218832191079855, 0.05016165226697922, -0.01...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
73
#### Bug Fix (user-visible misbehavior in an official stable release)[​](#bug-fix-user-visible-misbehavior-in-an-official-stable-release-6 "Direct link to Bug Fix (user-visible misbehavior in an official stable release)")
[ 0.024587532505393028, -0.02463747374713421, -0.020525678992271423, 0.012426941655576229, 0.002825818257406354, 0.00939719844609499, -0.02313924953341484, 0.019610097631812096, 0.006783628836274147, 0.020092858001589775, -0.03226177394390106, 0.012235501781105995, 0.028516210615634918, -0.0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
74
- Fix parameterized view with SELECT EXCEPT query. Closes [#49447](https://github.com/ClickHouse/ClickHouse/issues/49447). [#57380](https://github.com/ClickHouse/ClickHouse/pull/57380) ([Nikolay Degterinsky](https://github.com/evillique)). - Analyzer: Fix column projection name after column type promotion in join. Clos...
[ 0.03099842369556427, -0.017802545800805092, -0.012073930352926254, -0.0046623945236206055, 0.055428627878427505, 0.014139501377940178, 0.0062190028838813305, 0.02581220492720604, 0.02780347503721714, 0.01567753404378891, -0.02933407761156559, 0.022899601608514786, 0.02037336491048336, -0.0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
75
- Allow `DateTime` with timezone in `StripeLog` tables. This closes [#44120](https://github.com/ClickHouse/ClickHouse/issues/44120). [#80304](https://github.com/ClickHouse/ClickHouse/pull/80304) ([Alexey Milovidov](https://github.com/alexey-milovidov)). - Disable filter-push-down for the predicate with a non-determinis...
[ 0.032165106385946274, -0.010920069180428982, -0.01582963578402996, -0.011232496239244938, 0.048976656049489975, 0.009469514712691307, -0.01252683624625206, 0.016201574355363846, 0.024399064481258392, -0.004284713417291641, -0.00782555341720581, 0.005839410237967968, 0.016841305419802666, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
76
- Now ClickHouse will ignore errors and unexpected responses from data lake catalogs in `SHOW TABLES` query. Fixes [#79725](https://github.com/ClickHouse/ClickHouse/issues/79725). [#81046](https://github.com/ClickHouse/ClickHouse/pull/81046) ([alesapin](https://github.com/alesapin)). - Fix parsing of DateTime64 from in...
[ 0.03273617848753929, -0.016649531200528145, -0.02076747640967369, -0.023981843143701553, 0.04473450407385826, 0.007584128063172102, -0.015346009284257889, 0.011605789884924889, 0.023211579769849777, 0.018471499904990196, -0.022382065653800964, -0.001272970694117248, 0.007461922708898783, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
77
- Add validation for mergetree setting `merge_max_block_size` to ensure that it's non zero. [#81693](https://github.com/ClickHouse/ClickHouse/pull/81693) ([Bharat Nallan](https://github.com/bharatnc)). - Fix issues with `clickhouse-local` involving stuck `DROP VIEW` queries. [#81705](https://github.com/ClickHouse/Clic...
[ 0.04401463270187378, -0.02174091897904873, -0.03395076096057892, -0.019461749121546745, 0.03708831965923309, 0.003372506471350789, -0.011085056699812412, 0.016768183559179306, 0.016856981441378593, 0.010670661926269531, -0.02792724035680294, 0.017034580931067467, 0.004451042506843805, -0.0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
78
#### Build/Testing/Packaging Improvement[​](#buildtestingpackaging-improvement-6 "Direct link to Build/Testing/Packaging Improvement") - Use `postgres` 16.9. [#81437](https://github.com/ClickHouse/ClickHouse/pull/81437) ([Konstantin Bogdanov](https://github.com/thevar1able)). - Use `openssl` 3.2.4. [#81438](https://gi...
[ 0.0019174880580976605, -0.024173779413104057, -0.023487363010644913, -0.03127669170498848, 0.034977369010448456, -0.009132316336035728, -0.023412752896547318, 0.029650185257196426, 0.01524291094392538, 0.005245113279670477, -0.029829250648617744, 0.0031149855349212885, 0.04488563537597656, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
79
#### New Feature[​](#new-feature-7 "Direct link to New Feature") - Support scalar correlated subqueries in the WHERE clause. Closes [#6697](https://github.com/ClickHouse/ClickHouse/issues/6697). [#79600](https://github.com/ClickHouse/ClickHouse/pull/79600) ([Dmitry Novik](https://github.com/novikd)). Support correlate...
[ 0.0181468203663826, -0.026249656453728676, -0.011889549903571606, -0.021411484107375145, 0.04299943894147873, 0.007816074416041374, -0.04644056782126427, -0.0004271543293725699, 0.01697036623954773, -0.00213232496753335, -0.018249761313199997, -0.0003724675625562668, 0.027337877079844475, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
80
#### Performance Improvement[​](#performance-improvement-7 "Direct link to Performance Improvement") - Change the Compact part format to save marks for each substream to be able to read individual subcolumns. Old Compact format is still supported for reads and can be enabled for writes using MergeTree setting `write_m...
[ 0.025449983775615692, -0.013243612833321095, -0.012770090252161026, -0.005952861160039902, 0.055890753865242004, -0.0015351917827501893, -0.012424342334270477, 0.02989959716796875, 0.04401509463787079, 0.0009151020785793662, -0.03881385922431946, 0.018429817631840706, 0.020880110561847687, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
81
- Added an ability to apply lightweight deletes on the fly (with settings `lightweight_deletes_sync = 0`, `apply_mutations_on_fly = 1`. [#79281](https://github.com/ClickHouse/ClickHouse/pull/79281) ([Anton Popov](https://github.com/CurtizJ)). - If data in the pretty format is displayed in the terminal, and a subsequent...
[ 0.014615691266953945, -0.019934505224227905, -0.03238436207175255, -0.000311476644128561, 0.058963704854249954, 0.0014761184575036168, -0.03397559002041817, 0.014740926213562489, 0.0339166522026062, 0.010468194261193275, -0.033946119248867035, 0.00883276853710413, 0.03424079343676567, -0.0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
82
- Support local storage in `DeltaLake`. [#79416](https://github.com/ClickHouse/ClickHouse/pull/79416) ([Kseniia Sumarokova](https://github.com/kssenii)). - Add a query level setting to enable delta-kernel-rs: `allow_experimental_delta_kernel_rs`. [#79418](https://github.com/ClickHouse/ClickHouse/pull/79418) ([Kseniia S...
[ 0.013423092663288116, -0.005690304096788168, -0.021512214094400406, -0.024215934798121452, 0.049225352704524994, 0.0019708508625626564, -0.01623702049255371, 0.03744065761566162, 0.017368467524647713, 0.00026013213209807873, -0.021468132734298706, -0.00151257764082402, 0.03444305434823036, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
83
#### Bug Fix (user-visible misbehavior in an official stable release)[​](#bug-fix-user-visible-misbehavior-in-an-official-stable-release-7 "Direct link to Bug Fix (user-visible misbehavior in an official stable release)")
[ 0.024588003754615784, -0.024238411337137222, -0.019577177241444588, 0.011886144056916237, 0.003468872746452689, 0.009239229373633862, -0.022840041667222977, 0.019394058734178543, 0.007582827005535364, 0.019727002829313278, -0.03249545022845268, 0.01230232510715723, 0.029182646423578262, -0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
84
- Fix renames of columns missing in part. [#76346](https://github.com/ClickHouse/ClickHouse/pull/76346) ([Anton Popov](https://github.com/CurtizJ)). - A materialized view can start too late, e.g. after the Kafka table that streams to it. [#72123](https://github.com/ClickHouse/ClickHouse/pull/72123) ([Ilya Golshtein](ht...
[ 0.009518968872725964, -0.012420551851391792, -0.024989144876599312, -0.023035015910863876, 0.05584067106246948, 0.006887558847665787, -0.0027979551814496517, 0.019008329138159752, 0.03606253117322922, 0.024900320917367935, -0.03718763589859009, 0.006065937224775553, 0.012694425880908966, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
85
- Keeper fix: Avoid triggering watches on failed multi requests. [#79247](https://github.com/ClickHouse/ClickHouse/pull/79247) ([Antonio Andelic](https://github.com/antonio2368)). - Forbid Dynamic and JSON types in IN. With current implementation of `IN` it can lead to incorrect results. Proper support of this types in...
[ 0.013947867788374424, -0.00515288021415472, -0.0298017468303442, -0.007033035159111023, 0.044266749173402786, 0.015454946085810661, -0.010867221280932426, 0.01269935630261898, 0.022739160805940628, 0.02071494795382023, -0.04219821095466614, 0.023935958743095398, 0.011495170183479786, -0.03...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
86
#### Build/Testing/Packaging Improvement[​](#buildtestingpackaging-improvement-7 "Direct link to Build/Testing/Packaging Improvement") - Make it possible to reuse the built `chcache` binary instead of always rebuilding it. [#78851](https://github.com/ClickHouse/ClickHouse/pull/78851) ([János Benjamin Antal](https://gi...
[ 0.0001882218202808872, -0.014992526732385159, -0.010542339645326138, -0.022204900160431862, 0.057453449815511703, 0.003437385894358158, -0.023708755150437355, 0.04468601569533348, 0.02110002562403679, 0.010542339645326138, -0.027499087154865265, 0.016051365062594414, 0.02930985391139984, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
87
#### New Feature[​](#new-feature-8 "Direct link to New Feature") - Added CPU slot scheduling for workloads, see [the docs](https://clickhouse.com/docs/operations/workload-scheduling#cpu_scheduling) for details. [#77595](https://github.com/ClickHouse/ClickHouse/pull/77595) ([Sergei Trifonov](https://github.com/serxa))....
[ 0.01051514595746994, -0.008615350350737572, -0.008607987314462662, -0.013210204429924488, 0.04418128356337547, 0.012039399705827236, -0.02634677290916443, 0.008379717357456684, 0.05054339021444321, -0.005706749390810728, -0.02630259096622467, 0.005460070446133614, 0.03378395736217499, -0.0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
88
#### Experimental Feature[​](#experimental-feature-8 "Direct link to Experimental Feature") - Support correlated subqueries as an argument of `EXISTS` expression in the `WHERE` clause. Closes [#72459](https://github.com/ClickHouse/ClickHouse/issues/72459). [#76078](https://github.com/ClickHouse/ClickHouse/pull/76078) ...
[ 0.027068063616752625, -0.02808256447315216, -0.0022293291985988617, -0.011607949621975422, 0.04207973927259445, 0.005112938117235899, -0.02178971655666828, 0.002479278715327382, 0.03555164486169815, -0.004815204069018364, -0.03052324801683426, 0.009770086035132408, 0.017246516421437263, -0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
89
- Serialize query plan for `Distributed` queries. A new setting `serialize_query_plan` is added. When enabled, queries from `Distributed` table will use a serialized query plan for remote query execution. This introduces a new packet type to TCP protocol, `<process_query_plan_packet>true</process_query_plan_packet>` sh...
[ 0.005055147688835859, -0.002730748848989606, -0.024947674944996834, -0.024023134261369705, 0.045839302241802216, -0.013502761721611023, -0.02563362382352352, 0.026990611106157303, 0.028168654069304466, 0.009081371128559113, -0.0308378916233778, 0.017327673733234406, 0.033283449709415436, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
90
- Added field `condition` to system table `system.query_condition_cache`. It stores the plaintext condition whose hash is used as a key in the query condition cache. [#78671](https://github.com/ClickHouse/ClickHouse/pull/78671) ([Robert Schulze](https://github.com/rschu1ze)). - Allow an empty value for Hive partitionin...
[ 0.010851050727069378, -0.02666343003511429, -0.029560014605522156, -0.022236855700612068, 0.048870574682950974, -0.003085976466536522, -0.01705271191895008, 0.005473801866173744, 0.01611689291894436, -0.0034573334269225597, -0.025341399013996124, 0.04153256118297577, 0.022192291915416718, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
91
#### Bug Fix (user-visible misbehavior in an official stable release)[​](#bug-fix-user-visible-misbehavior-in-an-official-stable-release-8 "Direct link to Bug Fix (user-visible misbehavior in an official stable release)")
[ 0.025269294157624245, -0.024853408336639404, -0.020594725385308266, 0.012285302393138409, 0.0021179046016186476, 0.009615307673811913, -0.023106681182980537, 0.01918070949614048, 0.0067332107573747635, 0.01949678361415863, -0.03180703893303871, 0.012909132987260818, 0.028296951204538345, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
92
- Fix incorrect projection analysis when `count(Nullable)` is used in aggregate projections. This fixes [#74495](https://github.com/ClickHouse/ClickHouse/issues/74495) . This PR also adds some logs around projection analysis to clarify why a projection is used or why not. [#74498](https://github.com/ClickHouse/ClickHou...
[ 0.023334557190537453, -0.0035201695282012224, -0.026456894353032112, -0.010151362046599388, 0.06196403503417969, 0.017783738672733307, -0.003497543977573514, 0.022414449602365494, 0.02671331726014614, 0.009449968114495277, -0.03656300529837608, 0.005279311910271645, 0.030921682715415955, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
93
- Not schedule Refreshable Materialized Views task if a replica's `disable_insertion_and_mutation` is true. A task is some insertion, it will failed if `disable_insertion_and_mutation` is true. [#78277](https://github.com/ClickHouse/ClickHouse/pull/78277) ([Xu Jia](https://github.com/XuJia0210)). - Validate access to u...
[ 0.03388242423534393, -0.0036475847009569407, -0.037673670798540115, -0.024777455255389214, 0.059346482157707214, 0.0028919470496475697, -0.006306310184299946, 0.01162002980709076, 0.02401622012257576, 0.025061052292585373, -0.01915028691291809, 0.022329561412334442, 0.018836835399270058, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
94
#### Build/Testing/Packaging Improvement[​](#buildtestingpackaging-improvement-8 "Direct link to Build/Testing/Packaging Improvement") - Respect CPU target features in Rust and enable LTO in all crates. [#78590](https://github.com/ClickHouse/ClickHouse/pull/78590) ([Raúl Marín](https://github.com/Algunenano)). ### Cl...
[ 0.012727643363177776, -0.010290277190506458, -0.0026170196942985058, -0.012616517022252083, 0.043798502534627914, -0.015276134945452213, -0.019498927518725395, 0.023795802146196365, 0.031322743743658066, 0.00892713014036417, -0.026299843564629555, 0.006504581309854984, 0.04317619651556015, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
95
#### Performance Improvement[​](#performance-improvement-9 "Direct link to Performance Improvement") - Implement query condition cache to improve query performance using repeated conditions. The range of the portion of data that does not meet the condition is remembered as a temporary index in memory. Subsequent queri...
[ 0.012633198872208595, -0.019482703879475594, -0.02863525226712227, -0.004471928812563419, 0.06171261891722679, -0.01059101801365614, -0.02662288397550583, 0.017470335587859154, 0.034881044179201126, -0.008914045058190823, -0.034582916647195816, 0.017127487808465958, 0.013728821650147438, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
96
#### Improvement[​](#improvement-9 "Direct link to Improvement") - Support atomic rename when `TRUNCATE` is used with `INTO OUTFILE`. Resolves [#70323](https://github.com/ClickHouse/ClickHouse/issues/70323). [#77181](https://github.com/ClickHouse/ClickHouse/pull/77181) ([Onkar Deshpande](https://github.com/onkar)). - ...
[ 0.014613833278417587, -0.015302599407732487, -0.013213839381933212, -0.002839291002601385, 0.03674420714378357, 0.008280173875391483, -0.028778471052646637, 0.01955498568713665, 0.0205581896007061, 0.005341685377061367, -0.034767746925354004, 0.018536807969212532, 0.03931959718465805, -0.0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
97
- Fix stuck while processing pending batch for async distributed INSERT (due to i.e. `No such file or directory`). [#72939](https://github.com/ClickHouse/ClickHouse/pull/72939) ([Azat Khuzhin](https://github.com/azat)). - Improved datetime conversion during index analysis by enforcing saturating behavior for implicit D...
[ 0.02224808931350708, -0.015487865544855595, -0.013283766806125641, -0.02122739888727665, 0.052543360739946365, 0.019644590094685555, -0.021612007170915604, 0.013801507651805878, 0.03168577700853348, 0.018091365694999695, -0.01474823523312807, 0.004245480056852102, 0.011434690095484257, -0....
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
98
- Fix exceptions stack unwinding on MacOS. [#77126](https://github.com/ClickHouse/ClickHouse/pull/77126) ([Eduard Karacharov](https://github.com/korowa)). - Fix reading 'null' subcolumn in getSubcolumn function. [#77163](https://github.com/ClickHouse/ClickHouse/pull/77163) ([Pavel Kruglov](https://github.com/Avogar)). ...
[ 0.031835202127695084, -0.018355030566453934, -0.0195142962038517, -0.01749301329255104, 0.051364362239837646, 0.01495897863060236, -0.0071599483489990234, 0.023423099890351295, 0.01538255624473095, -0.00003062461473746225, -0.023987870663404465, 0.009482193738222122, 0.011243385262787342, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
99
#### Build/Testing/Packaging Improvement[​](#buildtestingpackaging-improvement-9 "Direct link to Build/Testing/Packaging Improvement") - `clickhouse-odbc-bridge` and `clickhouse-library-bridge` are moved to a separate repository, <https://github.com/ClickHouse/odbc-bridge/>. [#76225](https://github.com/ClickHouse/Clic...
[ 0.006968201603740454, -0.016267884522676468, -0.002736303023993969, -0.02566877193748951, 0.03415505960583687, -0.0005303929792717099, -0.029297184199094772, 0.04051227867603302, 0.03040669858455658, 0.02057100087404251, -0.027228089049458504, 0.005157743580639362, 0.04180171340703964, -0....
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
100
#### Performance Improvement[​](#performance-improvement-10 "Direct link to Performance Improvement") - Improve performance of the whole JSON column reading in Wide parts from S3. It's done by adding prefetches for subcolumn prefixes deserialization, cache of deserialized prefixes, and parallel deserialization of subc...
[ 0.012559193186461926, -0.010943258181214333, -0.024276597425341606, -0.018113497644662857, 0.04329201206564903, -0.00326756970025599, -0.004874109290540218, 0.014926725067198277, 0.031747475266456604, -0.013062763027846813, -0.032649390399456024, 0.016309663653373718, 0.011800079606473446, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
101
- Fixed calculation of size in memory for `LowCardinality` columns. [#74688](https://github.com/ClickHouse/ClickHouse/pull/74688) ([Nikita Taranov](https://github.com/nickitat)). - `processors_profile_log` table now has a default configuration with a TTL of 30 days. [#66139](https://github.com/ClickHouse/ClickHouse/pul...
[ 0.02191738411784172, -0.017728596925735474, -0.029572244733572006, 0.014719750732183456, 0.03707961365580559, 0.004240409005433321, -0.03277283161878586, 0.014203527010977268, 0.04840703681111336, -0.006338489707559347, -0.031002921983599663, -0.0005577059928327799, 0.03728610277175903, -0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
102
- Don't rewrite subcolumns to `getSubcolumn` in `ARRAY JOIN` if not necessary. [#76018](https://github.com/ClickHouse/ClickHouse/pull/76018) ([Pavel Kruglov](https://github.com/Avogar)). - Retry coordination errors when loading tables. [#76020](https://github.com/ClickHouse/ClickHouse/pull/76020) ([Alexander Tokmakov](...
[ 0.029877962544560432, -0.0160870011895895, -0.019751835614442825, -0.01226026751101017, 0.03273329511284828, -0.001584047102369368, -0.003823054488748312, 0.016896503046154976, 0.03741368651390076, 0.01723502203822136, -0.02525644563138485, 0.022504139691591263, 0.028317833319306374, -0.00...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
103
#### Bug Fix (user-visible misbehavior in an official stable release)[​](#bug-fix-user-visible-misbehavior-in-an-official-stable-release-10 "Direct link to Bug Fix (user-visible misbehavior in an official stable release)")
[ 0.025343582034111023, -0.024424731731414795, -0.021417582407593727, 0.012387782335281372, 0.0011516963131725788, 0.011026212945580482, -0.02332211099565029, 0.019579879939556122, 0.006373485084623098, 0.018978450447320938, -0.03152494505047798, 0.012972505763173103, 0.030255258083343506, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
104
- Fix formatting of exceptions using a custom format if they appear during query interpretation. In previous versions, exceptions were formatted using the default format rather than the format specified in the query. This closes [#55422](https://github.com/ClickHouse/ClickHouse/issues/55422). [#74994](https://github.co...
[ 0.019440796226263046, -0.012802112847566605, 0.0067871990613639355, -0.017109088599681854, 0.03516868129372597, 0.010522386059165001, -0.006118875462561846, 0.014896194450557232, 0.018891284242272377, 0.022901227697730064, -0.0320795401930809, 0.013730340637266636, -0.004448065999895334, -...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
105
- Fix nullsafe JOIN handling for LowCardinality nullable data type. Previously JOIN ON with nullsafe comparison, such as `IS NOT DISTINCT FROM`, `<=>` , `a IS NULL AND b IS NULL OR a == b` didn't work correctly with LowCardinality columns. [#75143](https://github.com/ClickHouse/ClickHouse/pull/75143) ([Vladimir Cherkas...
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https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
106
- `clickhouse-library-bridge` allows opening arbitrary libraries from the filesystem, which makes it safe to run only inside an isolated environment. To prevent a vulnerability when it is run near the clickhouse-server, we will limit the paths of libraries to a location, provided in the configuration. This vulnerabilit...
[ 0.019551150500774384, -0.010767193511128426, -0.01765671744942665, -0.016975903883576393, 0.029940936714410782, 0.01599908620119095, -0.015244273468852043, 0.015836283564567566, 0.024686843156814575, 0.00701902573928237, -0.03886549547314644, 0.01068579126149416, 0.017834320664405823, -0.0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
107
#### Build/Testing/Packaging Improvement[​](#buildtestingpackaging-improvement-10 "Direct link to Build/Testing/Packaging Improvement") - Support build HDFS on both ARM and Intel Mac. [#74244](https://github.com/ClickHouse/ClickHouse/pull/74244) ([Yan Xin](https://github.com/yxheartipp)). - Enable ICU and GRPC when cr...
[ -0.001804882544092834, -0.035117220133543015, -0.029011815786361694, -0.028090806677937508, 0.04156429320573807, 0.008987275883555412, -0.033928822726011276, 0.014000838622450829, 0.01889556087553501, 0.013176385313272476, -0.01169088575989008, 0.012433636002242565, 0.03889039158821106, -0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
108
#### New Feature[​](#new-feature-11 "Direct link to New Feature") - Added an ability to apply non-finished (not materialized by background process) mutations during the execution of `SELECT` queries immediately after submitting. It can be enabled by setting `apply_mutations_on_fly`. [#74877](https://github.com/ClickHo...
[ 0.02368149161338806, -0.02169816568493843, -0.023311467841267586, -0.010952689684927464, 0.05588832125067711, -0.002103582490235567, -0.02600523829460144, 0.015674186870455742, 0.03652869910001755, 0.02276383340358734, -0.011130301281809807, 0.01123390719294548, 0.03913366422057152, -0.012...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
109
#### Experimental Features[​](#experimental-features-1 "Direct link to Experimental Features") - The `BFloat16` data type is production-ready. [#73840](https://github.com/ClickHouse/ClickHouse/pull/73840) ([Alexey Milovidov](https://github.com/alexey-milovidov)). #### Performance Improvement[​](#performance-improveme...
[ 0.016203833743929863, -0.010601682588458061, -0.031276822090148926, -0.007532774470746517, 0.0545186884701252, 0.00044615412480197847, -0.015251543372869492, 0.006323810666799545, 0.046602763235569, 0.00830279104411602, -0.03841900825500488, 0.02864314243197441, 0.021709268912672997, -0.01...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
110
- Support SETTINGS in a CREATE TABLE query with an implicit ENGINE and support mixing engine and query settings. [#73120](https://github.com/ClickHouse/ClickHouse/pull/73120) ([Raúl Marín](https://github.com/Algunenano)). - Enable `use_hive_partitioning` by default. [#71636](https://github.com/ClickHouse/ClickHouse/pul...
[ -0.0014874496264383197, -0.01747938245534897, -0.021268310025334358, -0.014297276735305786, 0.03256108611822128, -0.0059719993732869625, -0.028017334640026093, 0.023932399228215218, 0.02712930552661419, 0.01934424601495266, -0.022881563752889633, 0.0025271843187510967, 0.02221554145216942, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
111
- Allow more general join planning algorithm when hash join algorithm is enabled. [#71926](https://github.com/ClickHouse/ClickHouse/pull/71926) ([János Benjamin Antal](https://github.com/antaljanosbenjamin)). - Allow to create bloom\_filter index on columns with data type `DateTime64`. [#66416](https://github.com/Click...
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https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
112
- Address some `clickhouse-disks` usability issues addressed by users. Closes [#67136](https://github.com/ClickHouse/ClickHouse/issues/67136). [#73616](https://github.com/ClickHouse/ClickHouse/pull/73616) ([Daniil Ivanik](https://github.com/divanik)). - Allow to alter commit settings in storage S3(Azure)Queue. (Commit ...
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https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
113
#### Bug Fix (user-visible misbehavior in an official stable release)[​](#bug-fix-user-visible-misbehavior-in-an-official-stable-release-11 "Direct link to Bug Fix (user-visible misbehavior in an official stable release)")
[ 0.024850716814398766, -0.023019257932901382, -0.02157425321638584, 0.010635904967784882, 0.002283023204654455, 0.009115289896726608, -0.02206152305006981, 0.01981000415980816, 0.006838568020612001, 0.019793201237916946, -0.03155486658215523, 0.011173581704497337, 0.02812718041241169, -0.02...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
114
- Set parquet compression level only if compression codec supports it. [#74659](https://github.com/ClickHouse/ClickHouse/pull/74659) ([Arthur Passos](https://github.com/arthurpassos)). - Fixed a regression that using collation locales with modifiers throws an error. As an example, `SELECT arrayJoin(['kk 50', 'KK 01', '...
[ 0.01731734350323677, -0.018231887370347977, -0.012899503111839294, -0.007832631468772888, 0.055020179599523544, 0.018423646688461304, -0.018320390954613686, 0.02516472525894642, 0.036316268146038055, 0.020488746464252472, -0.026138272136449814, 0.011033536866307259, 0.01677156612277031, -0...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
115
- Fix crash in LIMIT BY COLUMNS. [#73686](https://github.com/ClickHouse/ClickHouse/pull/73686) ([Raúl Marín](https://github.com/Algunenano)). - Fix the bug when the normal projection is forced to use, and query is exactly the same as the projection defined, but the projection is not selected and thus error is prompted....
[ 0.006297276355326176, -0.007743098307400942, -0.029108725488185883, -0.0041192988865077496, 0.05138399824500084, 0.016373658552765846, -0.0040786233730614185, 0.033841852098703384, 0.027378175407648087, 0.01260934304445982, -0.038367900997400284, 0.013474618084728718, 0.016891343519091606, ...
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
116
- Fix mem alignment issue reported by UBSan [#74512](https://github.com/ClickHouse/ClickHouse/issues/74512). [#74534](https://github.com/ClickHouse/ClickHouse/pull/74534) ([Arthur Passos](https://github.com/arthurpassos)). - Fix KeeperMap concurrent cleanup during table creation. [#74568](https://github.com/ClickHouse/...
[ 0.028358280658721924, -0.027057848870754242, -0.005781749729067087, -0.008851802907884121, 0.04241181164979935, 0.010580786503851414, -0.01925525814294815, 0.013979642651975155, 0.03939717262983322, 0.020673910155892372, -0.03951539471745491, 0.0143195278942585, -0.0061438013799488544, -0....
https://clickhouse.com/docs/whats-new/changelog/2025
2025 Changelog
117
#### Build/Testing/Packaging Improvement[​](#buildtestingpackaging-improvement-11 "Direct link to Build/Testing/Packaging Improvement") - The universal installation script will propose installation even on macOS. [#74339](https://github.com/ClickHouse/ClickHouse/pull/74339) ([Alexey Milovidov](https://github.com/alexe...
[ 0.0021904923487454653, -0.015230737626552582, -0.029804140329360962, -0.03074532374739647, 0.02433631382882595, 0.001298795803450048, -0.005068197846412659, 0.025471709668636322, 0.004478090908378363, 0.00036064692540094256, -0.03188072144985199, 0.01694130152463913, 0.04858298972249031, -...
https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
0
[Edit this page](https://github.com/ClickHouse/clickhouse-docs/blob/main/docs/cloud/reference/01_changelog/02_release_notes/24_02.md) ### ClickHouse release tag: 24.2.2.15987[​](#clickhouse-release-tag-242215987 "Direct link to ClickHouse release tag: 24.2.2.15987") #### Backward incompatible change[​](#backward-inco...
[ 0.009107260964810848, -0.0059433747082948685, -0.02838626690208912, -0.011738903820514679, 0.05008993297815323, -0.0032137837260961533, -0.018953746184706688, 0.0196190495043993, 0.03489145264029503, 0.029982993379235268, -0.0318162739276886, 0.005950767081230879, 0.0026519722305238247, -0...
https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
1
#### New feature[​](#new-feature "Direct link to New feature") - Topk/topkweighed support mode, which return count of values and it's error. [#54508](https://github.com/ClickHouse/ClickHouse/pull/54508) ([UnamedRus](https://github.com/UnamedRus)). - Added new syntax which allows to specify definer user in view/materia...
[ 0.017417268827557564, -0.02534755878150463, -0.022013898938894272, -0.00928137730807066, 0.05527706444263458, 0.012813294306397438, -0.01812218315899372, 0.012284607626497746, 0.030135104432702065, 0.015008809976279736, -0.021955156698822975, 0.008576462976634502, 0.030516933649778366, -0....
https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
2
#### Performance Improvement[​](#performance-improvement "Direct link to Performance Improvement") - Eliminates min/max/any/anyLast aggregators of GROUP BY keys in SELECT section. [#52230](https://github.com/ClickHouse/ClickHouse/pull/52230) ([JackyWoo](https://github.com/JackyWoo)). - Improve the performance of seria...
[ 0.018961377441883087, -0.006487574893981218, -0.028404653072357178, 0.001170120551250875, 0.06830286234617233, 0.00204092962667346, -0.008058959618210793, 0.015713850036263466, 0.03475005552172661, 0.01357377227395773, -0.03741392493247986, 0.019904209300875664, 0.010820107534527779, -0.01...
https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
3
- While running the MODIFY COLUMN query for materialized views, check the inner table's structure to ensure every column exists. [#47427](https://github.com/ClickHouse/ClickHouse/pull/47427) ([sunny](https://github.com/sunny19930321)). - Added table `system.keywords` which contains all the keywords from parser. Mostly ...
[ 0.011546299792826176, -0.01651986502110958, -0.037793226540088654, 0.007849136367440224, 0.05542811006307602, 0.0015148100210353732, -0.02325398474931717, 0.024192946031689644, 0.031631287187337875, 0.022931216284632683, -0.04577440395951271, 0.02640831097960472, 0.021786855533719063, -0.0...
https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
4
- Keeper improvement: add retries on failures for Disk related operations. [#59980](https://github.com/ClickHouse/ClickHouse/pull/59980) ([Antonio Andelic](https://github.com/antonio2368)). - Add new config setting `backups.remove_backup_files_after_failure`: `<clickhouse> <backups> <remove_backup_files_after_failure>t...
[ 0.00923844613134861, -0.007670486345887184, -0.016224330291152, 0.0040597631596028805, 0.051087502390146255, 0.0075306217186152935, -0.02632405050098896, 0.03115306980907917, 0.03783714026212692, 0.021450862288475037, -0.0427839420735836, -0.0019801927264779806, 0.030358048155903816, -0.03...
https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
5
- String types and Enums can be used in the same context, such as: arrays, UNION queries, conditional expressions. This closes [#60726](https://github.com/ClickHouse/ClickHouse/issues/60726). [#60727](https://github.com/ClickHouse/ClickHouse/pull/60727) ([Alexey Milovidov](https://github.com/alexey-milovidov)). - Updat...
[ 0.010265982709825039, -0.01712716743350029, -0.024143114686012268, -0.007266517728567123, 0.03888250142335892, 0.02384832687675953, -0.020944667980074883, 0.013258078135550022, 0.031483329832553864, 0.0181589238345623, -0.04306848719716072, 0.0063821543008089066, 0.02235964871942997, -0.03...
https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
6
- If stdout is a terminal and the output format is not specified, `clickhouse-client` and similar tools will use `PrettyCompact` by default, similarly to the interactive mode. `clickhouse-client` and `clickhouse-local` will handle command line arguments for input and output formats in a unified fashion. This closes [#6...
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https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
7
#### Bug Fix (user-visible misbehavior in an official stable release)[​](#bug-fix-user-visible-misbehavior-in-an-official-stable-release "Direct link to Bug Fix (user-visible misbehavior in an official stable release)")
[ 0.02483246475458145, -0.024306215345859528, -0.019191714003682137, 0.013501625508069992, 0.0021070593502372503, 0.009242282249033451, -0.024996919557452202, 0.01807343028485775, 0.007157834712415934, 0.020194878801703453, -0.030933687463402748, 0.012350451201200485, 0.027019696310162544, -...
https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
8
- Fix bug with `intDiv` for decimal arguments [#59243](https://github.com/ClickHouse/ClickHouse/pull/59243) ([Yarik Briukhovetskyi](https://github.com/yariks5s)). - Fix\_kql\_issue\_found\_by\_wingfuzz [#59626](https://github.com/ClickHouse/ClickHouse/pull/59626) ([Yong Wang](https://github.com/kashwy)). - Fix error "R...
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https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
9
- Fix `intDiv` for decimal and date arguments [#60672](https://github.com/ClickHouse/ClickHouse/pull/60672) ([Yarik Briukhovetskyi](https://github.com/yariks5s)). - Fix: expand CTE in alter modify query [#60682](https://github.com/ClickHouse/ClickHouse/pull/60682) ([Yakov Olkhovskiy](https://github.com/yakov-olkhovskiy...
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https://clickhouse.com/docs/whats-new/changelog/24.2-fast-release
title_wip
10
- [ClickHouse release tag: 24.2.2.15987](#clickhouse-release-tag-242215987) Was this page helpful?
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https://clickhouse.com/docs/whats-new/cloud-compatibility
ClickHouse Cloud compatibility guide
0
[Edit this page](https://github.com/ClickHouse/clickhouse-docs/blob/main/docs/cloud/guides/cloud-compatibility.md) This guide provides an overview of what to expect functionally and operationally in ClickHouse Cloud. While ClickHouse Cloud is based on the open-source ClickHouse distribution, there may be some differen...
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https://clickhouse.com/docs/whats-new/cloud-compatibility
ClickHouse Cloud compatibility guide
1
#### `max_table_size_to_drop: 1,000,000,000,000`[​](#max_table_size_to_drop-1000000000000 "Direct link to max_table_size_to_drop-1000000000000") Increased this setting from 50GB to allow for dropping of tables/partitions up to 1TB. ### System settings[​](#system-settings "Direct link to System settings") ClickHouse ...
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https://clickhouse.com/docs/whats-new/roadmap
Roadmap
0
[Edit this page](https://github.com/ClickHouse/clickhouse-docs/blob/main/docs/whats-new/roadmap.md) ## Current roadmap[​](#current-roadmap "Direct link to Current roadmap") The current roadmap is published for open discussion: - [2026](https://github.com/ClickHouse/ClickHouse/issues/93288) ## Previous roadmaps[​](#...
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https://clickhouse.com/docs/whats-new/security-changelog
title_wip
0
[Edit this page](https://github.com/ClickHouse/clickhouse-docs/blob/main/docs/whats-new/security-changelog.md) ## Fixed in ClickHouse v25.1.5.5, 2025-01-05[​](#fixed-in-clickhouse-release-2025-01-05 "Direct link to Fixed in ClickHouse v25.1.5.5, 2025-01-05") ### [CVE-2025-1385](https://github.com/ClickHouse/ClickHous...
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https://clickhouse.com/docs/whats-new/security-changelog
title_wip
1
Credits: JFrog Security Research Team ### CVE-2021-42387[​](#cve-2021-42387 "Direct link to CVE-2021-42387") Heap out-of-bounds read in ClickHouse's LZ4 compression codec when parsing a malicious query. As part of the LZ4::decompressImpl() loop, a 16-bit unsigned user-supplied value ('offset') is read from the compre...
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https://clickhouse.com/docs/whats-new/security-changelog
title_wip
2
### CVE-2018-14669[​](#cve-2018-14669 "Direct link to CVE-2018-14669") ClickHouse MySQL client had "LOAD DATA LOCAL INFILE" functionality enabled that allowed a malicious MySQL database read arbitrary files from the connected ClickHouse server. Credits: Andrey Krasichkov and Evgeny Sidorov of Yandex Information Secur...
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