Merge all the latest trunk enhancements into the begin-concurrent branch.

FossilOrigin-Name: 51cda102d2c8e682076c962f7517b4d546392e31e50de4748d4647799c25c5bc

diff --cc Makefile.msc
Simple merge

diff --cc ext/session/sqlite3session.c
Simple merge

diff --cc ext/session/sqlite3session.h
Simple merge

diff --cc ext/session/test_session.c
Simple merge

diff --cc main.mk
Simple merge

diff --cc manifest
index 1afd3d15f9dc2c16dbbe2bcb888d320c35b2ec51,5bbe1a69cd47aeeaabca5c3a624133ff2c6ce853..bf589337747b8271a6f186f0eef8f1c8b4236de0
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,13 -1,13 +1,13 @@@
- C Merge\sthe\slatest\strunk\senhancements\sinto\sthe\sbegin-concurrent\sbranch
- D 2026-03-27T12:05:13.526
 -C Fix\sa\spotential\s4-byte\soverread\sin\sthe\ssessions\smodule\swhen\sprocessing\sa\scorrupt\schangeset.
 -D 2026-04-01T17:43:22.311
++C Merge\sall\sthe\slatest\strunk\senhancements\sinto\sthe\sbegin-concurrent\sbranch.
++D 2026-04-02T11:52:29.483
  F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md 6bc480fc673fb4acbc4094e77edb326267dd460162d7723c7f30bee2d3d9e97d
- F Makefile.in 3ce07126d7e87c7464301482e161fdae6a51d0a2aa06b200b8f0000ef4d6163b
+ F Makefile.in 5fda086f33b144da08119255da1d2557f983d0764a13707f05acf0159fd89ba5
  F Makefile.linux-generic bd3e3cacd369821a6241d4ea1967395c962dfe3057e38cb0a435cee0e8b789d0
- F Makefile.msc 13deef4e988fb0fe1ab55eba15d6a47bb5cd8a7ac38fc450adc367a281b3c8e7
- F README.md 3fa51fc7ababc32edd175ae8b2986c86d5ea120c1cb1e57c7f7849492d1405ec
 -F Makefile.msc 92391304cf70f4c178b127aa83b88637abd28d1b83ede451616144037ea1d3dd
++F Makefile.msc 078202192dcd8dcafa9cbc4308336991e132dc0374f6d61cd3ed82033657db9b
+ F README.md f49fbd826941842e348242f3ab62f240c985ceafdf8fbe576abf4eb75317468c
  F VERSION 31435e19ded2aae3c1c67dacf06a995a37fd1b253baec5899b78d64cd29db4f7
  F art/icon-243x273.gif 9750b734f82fdb3dc43127753d5e6fbf3b62c9f4e136c2fbf573b2f57ea87af5
  F art/icon-80x90.gif 65509ce3e5f86a9cd64fe7fca2d23954199f31fe44c1e09e208c80fb83d87031
@@@ -47,17 -47,16 +47,17 @@@ F autosetup/find_tclconfig.tcl e64886ff
  F autosetup/jimsh0.c 916bbdf8023fbda9937afae57d81a853d8c2ea00f2320aa27becbc33574f963d
  F autosetup/pkg-config.tcl 4e635bf39022ff65e0d5434339dd41503ea48fc53822c9c5bde88b02d3d952ba
  F autosetup/proj.tcl ce301197f364f7ce2acabbbd84b43d19e917ec73653157ca134a06f32d322712
- F autosetup/sqlite-config.tcl b215e97ad734f148069da3efd57ac8b2b2b893e6f08d20dd1eceff1e8b95313d
+ F autosetup/sqlite-config.tcl 6f8b3a88f5e7fdb86ba920fc97fd4dbfaaf92d0d91c60bb006fb8a52780a68b2
  F autosetup/system.tcl 51d4be76cd9a9074704b584e5c9cbba616202c8468cf9ba8a4f8294a7ab1dba9
  F autosetup/teaish/README.txt b40071e6f8506500a2f7f71d5fc69e0bf87b9d7678dd9da1e5b4d0acbf40b1ca
 -F autosetup/teaish/core.tcl e014dd95900c7f9a34e8e0f460f47e94841059827bce8b4c49668b0c7ae3f1a0
 +F autosetup/teaish/core.tcl 1ebbe849d8e716424a3ffe9384c7e8b352b3e1194d3d4a153b125cc5176b3715
  F autosetup/teaish/feature.tcl 18194fb79a24d30e5bbdeab40999616f39278b53a27525349ded033af2fd73be
 -F autosetup/teaish/tester.tcl 1799514c2652db49561b3386c5242b94534d1663f2cfac861a955e071895fdd0
 +F autosetup/teaish/tester.tcl 091745984473faea6985254b9986c6dfd0cce06f68bc515ba4afc1e6b3742fa8
  F configure 9a00b21dfd13757bbfb8d89b30660a89ec1f8f3a79402b8f9f9b6fc475c3303a x
  F contrib/sqlitecon.tcl eb4c6578e08dd353263958da0dc620f8400b869a50d06e271ab0be85a51a08d3
  F doc/F2FS.txt c1d4a0ae9711cfe0e1d8b019d154f1c29e0d3abfe820787ba1e9ed7691160fcd
- F doc/compile-for-unix.md c8f05bf9ff8c588c501515eb11642540572203e53d0b5eb5bf60983acdd47643
 +F doc/begin_concurrent.md e694a2a1c623833e7de8b688e81ec30fd4439a78d6b74be61bce0b1e8f590470
+ F doc/compile-for-unix.md ebd6e461c71d43291e7e8c6487c9c2716bd997053556ec757509011e77e25581
  F doc/compile-for-windows.md 36601c95fa4070eebfe757684271d17a7c4a586912ba706d0b5e7817e1df54ad
  F doc/json-enhancements.md e356fc834781f1f1aa22ee300027a270b2c960122468499bf347bb123ce1ea4f
  F doc/jsonb.md acd77fc3a709f51242655ad7803510c886aa8304202fa9cf2abc5f5c4e9d7ae5
@@@ -573,11 -571,9 +574,11 @@@ F ext/session/sessionrowid.test 85187c2
  F ext/session/sessionsize.test 8fcf4685993c3dbaa46a24183940ab9f5aa9ed0d23e5fb63bfffbdb56134b795
  F ext/session/sessionstat1.test 5e718d5888c0c49bbb33a7a4f816366db85f59f6a4f97544a806421b85dc2dec
  F ext/session/sessionwor.test 6fd9a2256442cebde5b2284936ae9e0d54bde692d0f5fd009ecef8511f4cf3fc
 -F ext/session/sqlite3session.c 165a880952fdc1e6397cb05e7d337ff5174596078c1fb0abd4f9933141c565e3
 -F ext/session/sqlite3session.h 063e7bf7be2fff874456f452a224b5b3013b25682d108933b0351c93a1279b9c
 -F ext/session/test_session.c beefbb051a2baa2636f463ad1c50558294a418f955219be9423de54dff946f0f
 +F ext/session/sqlite3changebatch.c d5553b79e012ee2cb06c0a96bdf9dfe19e66354390ea0036cc46c4953142d517
 +F ext/session/sqlite3changebatch.h e72016998c9a22d439ddfd547b69e1ebac810c24
- F ext/session/sqlite3session.c 757fee3d5ae0f212cde93caa777822c2c35fe54289a6aa3a47f717970419848f
- F ext/session/sqlite3session.h 17b285102e4c71266f98c7ccf28050f1f13a1970c12c4bb9a2397cf28f4ecd26
- F ext/session/test_session.c 74b1cb1d31234c5c904ab1de9fa33eed1896672205ab3247ce5511a6a3041358
++F ext/session/sqlite3session.c 5bdb9069ca3df0f1b88bad2ce2f874710657aa6851a7d1ccbecbfdd76ba29835
++F ext/session/sqlite3session.h 6a775688300adcaf782409aace6ec4c47be38207c0b488cb77ec1e3494fc557a
++F ext/session/test_session.c 05729e5b40d97651380f3b3ccf01da931b517c5b1da135cec026b5eebb83698e
  F ext/wasm/GNUmakefile 68c750f173106d9d63f12c1edf1256c6f4bad9894b155da5db64322f4912de4b
  F ext/wasm/README-dist.txt f01081a850ce38a56706af6b481e3a7878e24e42b314cfcd4b129f0f8427066a
  F ext/wasm/README.md 2e87804e12c98f1d194b7a06162a88441d33bb443efcfe00dc6565a780d2f259
@@@ -660,7 -656,7 +661,7 @@@ F ext/wasm/tests/opfs/sahpool/index.htm
  F ext/wasm/tests/opfs/sahpool/sahpool-pausing.js f264925cfc82155de38cecb3d204c36e0f6991460fff0cb7c15079454679a4e2
  F ext/wasm/tests/opfs/sahpool/sahpool-worker.js bd25a43fc2ab2d1bafd8f2854ad3943ef673f7c3be03e95ecf1612ff6e8e2a61
  F magic.txt 5ade0bc977aa135e79e3faaea894d5671b26107cc91e70783aa7dc83f22f3ba0
- F main.mk 20b55d12ef9c814cd84ffaa10437801a2337dc2f64f50ee82ed3f2f6cbff65ca
 -F main.mk bf77c630aeef4ed4b9270e1fd52c35147b529412c00b74ed6eb8aca3466763f6
++F main.mk 2f6f1af06a3c7360e8c1f08b56fa495d91f506531be7d0dfd64751111eb6b8b4
  F make.bat a136fd0b1c93e89854a86d5f4edcf0386d211e5d5ec2434480f6eea436c7420c
  F mptest/config01.test 3c6adcbc50b991866855f1977ff172eb6d901271
  F mptest/config02.test 4415dfe36c48785f751e16e32c20b077c28ae504
@@@ -676,12 -672,12 +677,12 @@@ F src/analyze.c 03bcfc083fc0cccaa9ded93
  F src/attach.c 7cf07d4fa42b9fc8662237c60c40b730326c30aa90ae5fffc0b18b2d726ebf61
  F src/auth.c ebec42df26b34a62b6750d30d9c2c03554a1c522020182476f7729a439fef04f
  F src/backup.c 5c97e8023aab1ce14a42387eb3ae00ba5a0644569e3476f38661fa6f824c3523
 -F src/bitvec.c e242d4496774dfc88fa278177dd23b607dce369ccafb3f61b41638eea2c9b399
 +F src/bitvec.c 1a048c91b2fbccbbc32dcefa757f93216c0f518ed2bc0b4db39947264479ad06
  F src/btmutex.c 30dada73a819a1ef5b7583786370dce1842e12e1ad941e4d05ac29695528daea
 -F src/btree.c fb350c445316c1cc0529703c0b76450770a1de0ab0440641a56b19f05d6fefbe
 -F src/btree.h e823c46d87f63d904d735a24b76146d19f51f04445ea561f71cc3382fd1307f0
 -F src/btreeInt.h 9c0f9ea5c9b5f4dcaea18111d43efe95f2ac276cd86d770dce10fd99ccc93886
 -F src/build.c 8581de0af3b6c448f5d64e2d18a91ac1e7057b3bcb8b8827e1240f80d87486a4
 +F src/btree.c c7c1818fb864bdff5b6d48c006ed6338212fa4a7f02c9ccabd9fd98daa1458e4
 +F src/btree.h d2e6b8c39fdb577faa8f4f80a907537c474dc74e6adf3be9272a5a13eed2b5cd
 +F src/btreeInt.h d802a3263b11c97f04f857e3f55aa58d0af611ed9fe8bebc7d661dfb62370045
- F src/build.c 727a760fc5f11f9a3243a823a8b9abdbf2caa5c4d2b9b5b32d6cb14a1f5533da
++F src/build.c a0862318e7b579a156b564d0b25ba7f41215207385a5a767e5e6deb3284e785a
  F src/callback.c 3605bbf02bd7ed46c79cd48346db4a32fc51d67624400539c0532f4eead804ad
  F src/carray.c 3efe3982d5fb323334c29328a4e189ccaef6b95612a6084ad5fa124fd5db1179
  F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
@@@ -692,7 -688,7 +693,7 @@@ F src/delete.c 1f2268d6fe3c78fc1bf794ba
  F src/expr.c 51e9c77ff5d9a21439e611fe6571a3cd50387e526e13c5614fd407e5b8571930
  F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
  F src/fkey.c 931f74cec1dc8038a0217ef340c91ce147dd1bbed08dc40c47ee0ec6edfffb08
- F src/func.c f546ec9edbaf1e4bf9a152bddf1b09c11949beece5d2d96c61184c46d169107b
 -F src/func.c 706ac012bf87d8ad7416a56a1d2b1f19e5dea03506a4606a01aa9d3bacf392c7
++F src/func.c 75762726faaf4b476c14e970dab3cbb18200317b8e5e247b17b634eac0a98b61
  F src/global.c a19e4b1ca1335f560e9560e590fc13081e21f670643367f99cb9e8f9dc7d615b
  F src/hash.c 03c8c0f4be9e8bcb6de65aa26d34a61d48a9430747084a69f9469fbb00ea52ca
  F src/hash.h 46b92795a95bfefb210f52f0c316e9d7cdbcdd7e7fcfb0d8be796d3a5767cddf
@@@ -734,16 -730,16 +735,16 @@@ F src/pcache.h 092b758d2c5e4dabb30eae46
  F src/pcache1.c 131ca0daf4e66b4608d2945ae76d6ed90de3f60539afbd5ef9ec65667a5f2fcd
  F src/pragma.c 789ef67117b74b5be0a2db6681f7f0c55e6913791b9da309aefd280de2c8a74d
  F src/prepare.c f6a6e28a281bd1d1da12f47d370a81af46159b40f73bf7fa0b276b664f9c8b7d
- F src/printf.c a440c004a3892cc3d334fa90e0ae59720918fe26c16942d4d45e2534640ce786
+ F src/printf.c 9abec48ffb0fc1aac72a461e2ca456b5284a39c84cddc932c86822311e059882
 -F src/random.c 606b00941a1d7dd09c381d3279a058d771f406c5213c9932bbd93d5587be4b9c
 +F src/random.c a3e70f8515721ff24d2c0e6afd83923e8faab5ab79ececea4c1bf9fe4049fbb2
  F src/resolve.c 928ff887f2a7c64275182060d94d06fdddbe32226c569781cf7e7edc6f58d7fd
  F src/rowset.c 8432130e6c344b3401a8874c3cb49fefe6873fec593294de077afea2dce5ec97
 -F src/select.c ffe199f025a0dd74670d2a77232bdea364a4d7b36f32c64a6572d39ba6a11576
 +F src/select.c 5c5b5bd015202400779d4b5dcfe96ed15b7312e169ed549182f74c25ac9e4207
  F src/shell.c.in 91ee40ec3f75192362cbaa0ad85316140b8dde00a184113d73a837fb6173dbcc
- F src/sqlite.h.in bcc2c06f1da51ce6bcd9f1e3664cb6e724e7f2988b1d80f8501c07bd004c4ade
 -F src/sqlite.h.in 9cc1df08742989eb67ed2065f73a582195c48fee2eec5df9df122b33d4872885
++F src/sqlite.h.in 573afa4be50278a04069ff0432ff6eba3d14580186687223ad9c51275a4b2aee
  F src/sqlite3.rc 015537e6ac1eec6c7050e17b616c2ffe6f70fca241835a84a4f0d5937383c479
  F src/sqlite3ext.h 1b7a0ee438bb5c2896d0609c537e917d8057b3340f6ad004d2de44f03e3d3cca
- F src/sqliteInt.h d3fa43b14636900577816f0405dfe64d31bb5f1e55ac23c68e8904acd4c8c714
 -F src/sqliteInt.h bc1cbc0c23dba35b324ae85a7dbb5fb182321bbd30857fb21f3d0cba049001a5
++F src/sqliteInt.h 5527cf15051d00e8fd3ed3820ab470464bdbfe21bad066432667679900a7999b
  F src/sqliteLimit.h c70656b67ab5b96741a8f1c812bdd80c81f2b1c1e443d0cc3ea8c33bb1f1a092
  F src/status.c 7565d63a79aa2f326339a24a0461a60096d0bd2bce711fefb50b5c89335f3592
  F src/table.c 0f141b58a16de7e2fbe81c308379e7279f4c6b50eb08efeec5892794a0ba30d1
@@@ -797,21 -793,21 +798,21 @@@ F src/test_vfs.c b4135c1308516adf0dfd49
  F src/test_window.c 6d80e11fba89a1796525e6f0048ff0c7789aa2c6b0b11c80827dc1437bd8ea72
  F src/test_wsd.c 41cadfd9d97fe8e3e4e44f61a4a8ccd6f7ca8fe9
  F src/threads.c 85d8b9f05f78211c61e3739ab5db761d7118766d1916ae7f2764735106bc4e13
- F src/tokenize.c 2bbf16801d8c59aaf5435b066364da9e39ec3a379084b8a697881e7e52733c63
+ F src/tokenize.c e9d52d9f7374d82dadcd11726bea8a597d43709d6672704f3f0375bf1d726912
  F src/treeview.c feaa59f14db4f7b5aacca9c5ad5aeb562c1f98262c1ffd74371f4186ade91fc5
  F src/trigger.c 4bf3bfb3851d165e4404a9f9e69357345f3f7103378c07e07139fdd8aeb7bd20
 -F src/update.c 3e5e7ff66fa19ebe4d1b113d480639a24cc1175adbefabbd1a948a07f28e37cf
 +F src/update.c b370610139b1a568bda5b1e50e767b8fc760dce28436001884e464f6f20a8d0a
  F src/upsert.c 215328c3f91623c520ec8672c44323553f12caeb4f01b1090ebdca99fdf7b4f1
  F src/utf.c 7267c3fb9e2467020507601af3354c2446c61f444387e094c779dccd5ca62165
- F src/util.c c24ed5647e81eea3abe3d9878b709425a3e843cbf4580ac442ed46b93824138c
+ F src/util.c 4f0abc15f63829e12cdfeeb490faf25ac65894b0bcc20d660e3f3757b8e2360b
 -F src/vacuum.c d3d35d8ae893d419ade5fa196d761a83bddcbb62137a1a157ae751ef38b26e82
 -F src/vdbe.c 6c57525d7db0232d52687d30da1093db0c152f14206c2ef1adf0c19a09d863e3
 +F src/vacuum.c 09d61b53904979f2c6acb740121fd0d1b5371f962baaaa2dbbe449b5535ff581
 +F src/vdbe.c d829c7751c624f0fe8fa21053f6b28767720240b3faba733597656948f369d96
  F src/vdbe.h 70e862ac8a11b590f8c1eaac17a0078429d42bc4ea3f757a9af0f451dd966a71
  F src/vdbeInt.h c31ba4dc8d280c2b1dc89c6fcee68f2555e3813ab34279552c20b964c0e338b1
  F src/vdbeapi.c 6cdcbe5c7afa754c998e73d2d5d2805556268362914b952811bdfb9c78a37cf1
 -F src/vdbeaux.c 81687c55682b9f4d942186695f4f7fa4743c564a985e0889def52eded9076d61
 +F src/vdbeaux.c 60e8d849809ab3ac27b63492c7a0e48f444a7491492cfc1e2bc2291fee524ec9
  F src/vdbeblob.c b3f0640db9642fbdc88bd6ebcc83d6009514cafc98f062f675f2c8d505d82692
- F src/vdbemem.c 5af6cf1253ac2aed0612b85138a1faf43f30ad38777d554db6c85b7281fa79fb
+ F src/vdbemem.c efacb8f229422d2a4db0ed38e49b7f3897862a98d82b261aa3b43d7a2d98c6da
  F src/vdbesort.c b69220f4ea9ffea5fdef34d968c60305444eea909252a81933b54c296d9cca70
  F src/vdbetrace.c 49e689f751505839742f4a243a1a566e57d5c9eaf0d33bbaa26e2de3febf7b41
  F src/vdbevtab.c fc46b9cbd759dc013f0b3724549cc0d71379183c667df3a5988f7e2f1bd485f3
@@@ -2212,8 -2197,8 +2214,8 @@@ F tool/warnings-clang.sh bbf6a1e685e534
  F tool/warnings.sh a554d13f6e5cf3760f041b87939e3d616ec6961859c3245e8ef701d1eafc2ca2
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
  F tool/winmain.c 00c8fb88e365c9017db14c73d3c78af62194d9644feaf60e220ab0f411f3604c
- P 8f4b9a2157d55baffe201b1e2c9a9a34faaeafcde01d8d9411d6d60c3f86f59a cd472d7c85f3fda54bba5166eae72b5f9b86861c4a1160583e8ee902ba992255
- R 43bb9ffa56176ef9c7bbf1303012a909
 -P 6194f3b5314ef98b5d73060450de8e3497272494b47e6f96992453418894ded1
 -R 4ad096384f9f8cacd7e16ef1bb17dd21
 -U dan
 -Z 55c63e5fbaf3fe2821f0bfdd0d47e9c0
++P 5d5433ab96b5a254b205042edb6395f96e8f45eef51056376b63e097f9f8a9bc c1c7e024c34da8eb0258ce552f3f81921280ccf0f1fea59374f381c0c7b43b74
++R e3e87ee786ec333bd38afb4fe5ef9cc2
 +U drh
- Z e53471af515258387c1b4241edefd020
++Z 229868fe6316ab3aa13f20aa6ee0c6a8
  # Remove this line to create a well-formed Fossil manifest.

diff --cc manifest.uuid
index 79ebb5882f98f6153c659097bb73c4276eb08a1e,32872b1fc5aafee2ab9d2d71e75112b936746ac8..1047c10c036d7d3a363e765b2ca0ae3317d42f5d
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 5d5433ab96b5a254b205042edb6395f96e8f45eef51056376b63e097f9f8a9bc
 -c1c7e024c34da8eb0258ce552f3f81921280ccf0f1fea59374f381c0c7b43b74
++51cda102d2c8e682076c962f7517b4d546392e31e50de4748d4647799c25c5bc

diff --cc src/build.c
Simple merge

diff --cc src/func.c
Simple merge

diff --cc src/sqlite.h.in
Simple merge

diff --cc src/sqliteInt.h
Simple merge