v2026.4.0

What's Changed

• Fix byzantine sender in replica by @dnkolegov-ar in #3343
• runtime/deterministic: reject pre-epoch start_time values by @commonware-llm in #3351
• [workspace] Remove aws feature from deployer's defaults by @clabby in #3349
• Fix panic in fixed_journal_operations.rs by @dnkolegov-ar in #3329
• [Storage] Define Key, Value associated types on QMDB operation by @danlaine in #3341
• [storage/qmdb] support pipelined batch updates with commit (fsync) by @roberto-bayardo in #3337
• [reshare] Track validator progress across crash restarts by @clabby in #3354
• [Storage] Remove redundant type bounds by @danlaine in #3345
• [math] Implemnt lin_comb_eval method by @cronokirby in #3312
• [Storage] Consolidate QMDB traits by @danlaine in #3350
• [storage/mmr] create storage/merkle module, move mmr into it by @roberto-bayardo in #3355
• [Storage] Change generic types to associated types by @danlaine in #3368
• [consensus/simplex] Strengthen twins framework by @clabby in #3281
• [Storage] Simplify mmr::Hasher by @danlaine in #3369
• [Storage] Remove mmr::update_leaf by @danlaine in #3372
• [workspace] Propagate mocks feature by @clabby in #3380
• [storage/mmr] folded root computation for smaller proofs by @roberto-bayardo in #3304
• [coding] Use the default minifuzz config where possible by @cronokirby in #3378
• [p2p/authenticated] Refactor Dial Jitter by @patrick-ogrady in #3379
• [consensus/coding] Prevent Proposer Withholding by @clabby in #3338
• [storage/fuzz] fix fuzz test panic from expected checksum invalidation by @roberto-bayardo in #3388
• CI: move benchmark name linting to benchmark running step by @cronokirby in #3218
• [storage/mmr] hash leaf count in last to avoid malleability concern by @roberto-bayardo in #3392
• [storage/mmr/journaled] Tweak Readable for journaled MMR by @roberto-bayardo in #3398
• [utils] Add Map::iter_pairs_mut by @cronokirby in #3407
• [Storage] Fix comment by @danlaine in #3406
• [consensus/simplex] Add policy to handle non-voters' block dissemination by @clabby in #3347
• [codec] Add implementations for Range*<T> by @clabby in #3394
• [utils] Add NonEmptyRange type by @clabby in #3395
• [storage/mmr/journaled] support crash recovery in init_sync by @roberto-bayardo in #3399
• [ci] Auto-assign pull requests by @clabby in #3419
• [Storage] Make batch mutation methods consume/produce Self by @danlaine in #3371
• [coding] Clarify Scheme unique commitment guarantee by @cronokirby in #3425
• [Storage] Change mmr::Hasher methods to take &self instead of &mut self by @danlaine in #3382
• [consensus/simplex] Remove nullify after nullification behavior by @BrendanChou in #3424
• [Storage] Clean up qmdb benchmarks by @danlaine in #3426
• [storage/merkle] Introduce "merkle family" to allow MMR variants, implement MMR and (F-)MMB versions by @roberto-bayardo in #3363
• [docs] The Carnot Bound by @patrick-ogrady in #3436
• [Storage] Consolidate storage configs by @danlaine in #3430
• [consensus/simplex] Timeout Regression Tests by @patrick-ogrady in #3432
• [Storage] QMDB state sync: don't reset outstanding requests on target update by @danlaine in #3438
• [storage/qmdb] Coordinate state sync finalization by @clabby in #3439
• [cryptography] Implement Scalar::from(SmallScalar) by @cronokirby in #3408
• [macros] Respect RUST_LOG in test_traced by @clabby in #3447
• [storage/merkle] change pruning api to be location based instead of position by @roberto-bayardo in #3443
• [Storage] Deduplicate fixed/variable code by @danlaine in #3437
• DKG Finalization Optimizations by @cronokirby in #3328
• [runtime/iouring] implement timeouts in userspace by @andresilva in #3284
• [p2p] IoBuf-driven Batching by @patrick-ogrady in #3431
• [runtime/iobuf] reduce buffer-pool hot-path overhead by @andresilva in #3360
• [runtime/utils/buffer/paged/append] zero-copy writes by @andresilva in #3434
• [runtime/tokio] don't box spawned tasks by @andresilva in #3455
• [storage/rmap]: add coverage for first/last index and max-boundary gaps by @voith in #3414
• [blogs] zkSNARKs by @patrick-ogrady in #3456
• [Storage] Allow batches to live longer than their base by @danlaine in #3400
• [workspace] rustfmt by @andresilva in #3457
• updated with reference to plonk by @guruvamsi-policharla in #3462
• [runtime/tokio] Simplify sleep_until by @patrick-ogrady in #3464
• [storage] Allow rewinding QMDB by @clabby in #3450
• [Storage] Add Context alias by @danlaine in #3451
• [runtime] Revert #3455 by @clabby in #3473
• [consensus::simplex] Add test that shows that gossiped certificates reach the reporter by @BrendanChou in #3472
• [scripts] make stability wrapper work with sccache by @andresilva in #3469
• [consensus::simplex] Improve test_invalid test by @BrendanChou in #3478
• [runtime/tokio] don't use deprecated set_linger by @andresilva in #3488
• [Storage] Add append_many journal optimization by @danlaine in #3489
• [runtime] Fix Network Flake by @patrick-ogrady in #3494
• [coding/rs] Remove Intermediate Copy + Only Decode Live Bytes by @commonware-llm in #3496
• [Storage] Fix UintIdentity hasher defeating hashbrown's SIMD filter by @danlaine in #3480
• [runtime] avoid stack multiplication in Handle::init by @andresilva in #3487
• [runtime/iobuf/pool] allow flushing thread-local cache by @andresilva in #3482
• [storage/qmdb] Fix path-dependent key selection in any::unordered by @clabby in #3476
• [runtime/tokio] use system thread stack size for all threads by @andresilva in #3475
• [storage] make clippy happy by @andresilva in #3500
• [storage] further generify storage crate on merkle family by @roberto-bayardo in #3463
• [storage/merkle] reject empty proof with non-empty digests by @roberto-bayardo in #3506
• [stream] Tighten Frame Allocation during Handshake by @patrick-ogrady in #3508
• [runtime] Avoid recursive supervision teardown by @commonware-llm in #3484
• [Storage] Support variable-length keys in qmdb::immutable by @danlaine in #3466
• [Storage] Deduplicate index creation and state sync implementations by @danlaine in #3452
• [Storage] [Utils] Optimize bitmap scan; add ones iterator by @danlaine in #3477
• [storage/qmdb/keyless] generalize keyless on merkle family by @roberto-bayardo in #3507
• [Storage] Support fixed-length values in qmdb::immutable by @danlaine in #3461
• [Storage] Support fixed-length values in qmdb::keyless by @danlaine in #3460
• [Storage] QMDB performance improvements by @danlaine in #3471
• [docs] How Things Work #6 by @patrick-ogrady in #3522
• [Storage] Fix next_key corruption when child batch deletes a key with collision siblings by @danlaine in #3515
• [storage/qmdb] default nodes_to_pin based on peak iteration by @roberto-bayardo in #3523
• [Codec] [Runtime] [p2p] Multi-buffer encoding for zero-copy of Bytes fields by @danlaine in #3491
• [storage/qmdb/current/batch] cache cleared bits per chunk by @andresilva in #3521
• [Storage] Fix path-dependent operation ordering by @danlaine in #3541
• [Storage] Maintain weak parent pointer in batch by @danlaine in #3503
• [p2p] Support Primary/Secondary Peers by @patrick-ogrady in #3499
• [storage/qmdb/current] Bitmap chunk overlay by @roberto-bayardo in #3545
• [Storage] Use append_many to avoid lock re-grabs by @danlaine in #3553
• [Storage] Batch blob writes in contiguous journal append by @danlaine in #3559
• [marshal] Improve Crash Robustness by @patrick-ogrady in #3547
• [Storage] Rename segment to batch by @danlaine in #3561
• [Storage] Allow authenticated::Journal::append_many calls to take nested slices by @danlaine in #3560
• [Storage] contiguous::Journal::append_many returns error on empty argument by @danlaine in #3562
• [storage/qmdb/current] Generalized grafting core to support current QMDB by @roberto-bayardo in #3514
• [storage/qmdb/current] fix pruned-chunk panic in root generation for current+mmb by @roberto-bayardo in #3567
• [storage/qmdb] merkleize benchmark for any + current qmdb by @roberto-bayardo in #3556
• [utils/bitmap] panic if the user tries to push an invalid trailing chunk by @roberto-bayardo in #3568
• [Storage] Pass thread pool to child batch in merkle::journaled by @danlaine in #3569
• [Storage] Parallelize leaf hashing in authenticated batch merkleization by @danlaine in #3572
• [consensus/simplex] Cleanup variable naming by @patrick-ogrady in #3580
• [runtime/iouring] replace raw SQE submission with high-level requests by @andresilva in #3411
• [runtime] Review Attributes by @patrick-ogrady in #3583
• [consensus/simplex] Self-verify test by @clabby in #3551
• [storage/qmdb] add ordered variants, increase items per blob in merkleize benchmark by @roberto-bayardo in #3573
• [storage/qmdb] Batch reads in floor raising with page-cache fast path (Rebased on main) by @roberto-bayardo in #3576
• [consensus/marshal] Handle Pruning Race on Epocher/Verifier by @patrick-ogrady in #3589
• [runtime] Fix Sleep Retries by @patrick-ogrady in #3594
• [release] v2026.4.0 by @patrick-ogrady in #3595

Stats

 .github/scripts/check_no_std.sh                    |    1 +
 .github/scripts/lint_benchmark_names.py            |  101 +-
 .github/workflows/auto-assign.yml                  |   18 +
 .github/workflows/benchmark.yml                    |    4 +-
 .github/workflows/fast.yml                         |   14 -
 .github/workflows/slow.yml                         |    2 +
 AGENTS.md                                          |    1 +
 Cargo.lock                                         |   83 +-
 Cargo.toml                                         |   44 +-
 .../fuzz_targets/broadcast_engine_operations.rs    |   25 +-
 broadcast/src/buffered/config.rs                   |    3 +-
 broadcast/src/buffered/engine.rs                   |   70 +-
 broadcast/src/buffered/mod.rs                      |  433 ++-
 codec/conformance.toml                             |   28 +
 codec/src/codec.rs                                 |   22 +
 codec/src/types/btree_map.rs                       |   24 +-
 codec/src/types/btree_set.rs                       |   19 +-
 codec/src/types/bytes.rs                           |   13 +-
 codec/src/types/hash_map.rs                        |   27 +-
 codec/src/types/hash_set.rs                        |   23 +-
 codec/src/types/lazy.rs                            |   22 +-
 codec/src/types/mod.rs                             |    1 +
 codec/src/types/primitives.rs                      |   17 +-
 codec/src/types/range.rs                           |  362 +++
 codec/src/types/tuple.rs                           |   12 +-
 codec/src/types/vec.rs                             |   29 +-
 coding/Cargo.toml                                  |   11 +
 coding/conformance.toml                            |    8 -
 coding/fuzz/Cargo.toml                             |    7 -
 coding/fuzz/fuzz_targets/no_coding.rs              |   10 -
 coding/fuzz/fuzz_targets/zoda.rs                   |    4 +-
 coding/fuzz/src/lib.rs                             |   39 +-
 coding/src/benches/bench.rs                        |  109 +-
 coding/src/benches/bench_phased.rs                 |  147 +
 coding/src/benches/bench_phased_size.rs            |   56 +
 coding/src/benches/bench_size.rs                   |   24 +-
 coding/src/benches/shard_selection.rs              |   43 +
 coding/src/benches/zoda.rs                         |    6 +-
 .../src/benches/{no_coding.rs => zoda_phased.rs}   |    6 +-
 coding/src/lib.rs                                  |  669 +++-
 coding/src/no_coding.rs                            |  154 -
 coding/src/reed_solomon.rs                         |  366 ++-
 coding/src/{zoda.rs => zoda/mod.rs}                |  216 +-
 coding/src/zoda/topology.rs                        |  157 +
 collector/src/p2p/mod.rs                           |   12 +-
 consensus/Cargo.toml                               |    6 +-
 consensus/conformance.toml                         |    6 +-
 consensus/fuzz/Cargo.toml                          |    2 +-
 consensus/fuzz/src/lib.rs                          |  137 +-
 consensus/src/aggregation/mod.rs                   |    8 +-
 consensus/src/lib.rs                               |   22 +-
 consensus/src/marshal/coding/marshaled.rs          |   90 +-
 consensus/src/marshal/coding/mod.rs                |  119 +-
 consensus/src/marshal/coding/shards/engine.rs      | 2274 ++++++++-----
 consensus/src/marshal/coding/shards/mailbox.rs     |   32 +-
 consensus/src/marshal/coding/types.rs              |  228 +-
 consensus/src/marshal/coding/variant.rs            |    4 +-
 consensus/src/marshal/config.rs                    |   23 +-
 consensus/src/marshal/core/actor.rs                |  102 +-
 consensus/src/marshal/core/cache.rs                |   12 +
 consensus/src/marshal/core/mailbox.rs              |   22 +
 consensus/src/marshal/core/variant.rs              |   17 +-
 consensus/src/marshal/mocks/application.rs         |   19 +-
 consensus/src/marshal/mocks/harness.rs             |  138 +-
 consensus/src/marshal/resolver/p2p.rs              |    2 +
 consensus/src/marshal/standard/deferred.rs         |   76 +-
 consensus/src/marshal/standard/inline.rs           |  326 +-
 consensus/src/marshal/standard/mod.rs              | 1101 ++++++-
 consensus/src/marshal/standard/variant.rs          |    5 +-
 consensus/src/marshal/store.rs                     |   27 +
 consensus/src/ordered_broadcast/config.rs          |    2 +-
 consensus/src/ordered_broadcast/engine.rs          |    6 +-
 consensus/src/ordered_broadcast/mocks/automaton.rs |    5 +-
 consensus/src/ordered_broadcast/mod.rs             |   24 +-
 consensus/src/simplex/actors/batcher/actor.rs      |  175 +-
 consensus/src/simplex/actors/batcher/ingress.rs    |    8 +-
 consensus/src/simplex/actors/batcher/mod.rs        | 1956 ++++++++++--
 consensus/src/simplex/actors/batcher/round.rs      |   52 +-
 consensus/src/simplex/actors/voter/actor.rs        |   36 +-
 consensus/src/simplex/actors/voter/mod.rs          | 1787 +++++++----
 consensus/src/simplex/actors/voter/round.rs        |  161 +-
 consensus/src/simplex/actors/voter/slot.rs         |   53 +-
 consensus/src/simplex/actors/voter/state.rs        |  197 +-
 consensus/src/simplex/config.rs                    |   37 +-
 consensus/src/simplex/engine.rs                    |   13 +-
 consensus/src/simplex/mocks/application.rs         |   40 +-
 consensus/src/simplex/mocks/mod.rs                 |    2 +
 consensus/src/simplex/mocks/reporter.rs            |   46 +-
 consensus/src/simplex/mocks/scheme.rs              |    6 +
 consensus/src/simplex/mocks/twins.rs               | 1467 +++++++--
 consensus/src/simplex/mocks/wrapped.rs             |  288 ++
 consensus/src/simplex/mod.rs                       | 1864 ++++++-----
 cryptography/src/bls12381/benches/dkg.rs           |   34 +-
 cryptography/src/bls12381/dkg.rs                   |  660 +++-
 cryptography/src/bls12381/primitives/group.rs      |   20 +
 cryptography/src/bls12381/scheme.rs                |    6 +
 cryptography/src/certificate.rs                    |   18 +-
 cryptography/src/certificate/mocks.rs              | 1183 +++++++
 cryptography/src/ed25519/scheme.rs                 |    6 +
 cryptography/src/transcript.rs                     |   80 +-
 deployer/Cargo.toml                                |    5 +-
 docs/blogs/batch-pari.html                         |  352 +++
 docs/blogs/batch-pari.md                           |   92 +
 docs/blogs/carnot-bound.html                       |  201 ++
 docs/blogs/carnot-bound.md                         |   46 +
 docs/blogs/is-it-ready-yet.html                    |    6 +-
 docs/blogs/its-a-grind.html                        |    6 +-
 docs/blogs/zoda.html                               |    8 +-
 docs/imgs/batch-pari.png                           |  Bin 0 -> 55717 bytes
 docs/imgs/carnot-algo-1.png                        |  Bin 0 -> 210793 bytes
 docs/imgs/carnot-algo-2.png                        |  Bin 0 -> 264620 bytes
 docs/imgs/carnot-algo-3.png                        |  Bin 0 -> 170341 bytes
 docs/imgs/carnot-algo-4.png                        |  Bin 0 -> 128160 bytes
 docs/imgs/carnot.png                               |  Bin 0 -> 79898 bytes
 docs/index.html                                    |   14 +-
 docs/podcast.html                                  |   51 +-
 docs/style.css                                     |   14 +
 docs/template.html                                 |    6 +-
 examples/bridge/src/application/ingress.rs         |    9 +-
 examples/bridge/src/bin/validator.rs               |    3 +-
 examples/chat/src/main.rs                          |    2 +-
 examples/estimator/src/main.rs                     |   54 +-
 examples/flood/src/bin/flood.rs                    |    2 +-
 examples/log/src/application/ingress.rs            |    9 +-
 examples/log/src/main.rs                           |    3 +-
 examples/reshare/src/dkg/actor.rs                  |   87 +-
 examples/reshare/src/dkg/state.rs                  |   12 +-
 examples/reshare/src/engine.rs                     |    4 +-
 examples/reshare/src/orchestrator/actor.rs         |    9 +-
 examples/reshare/src/validator.rs                  |  191 +-
 examples/sync/src/bin/client.rs                    |   12 +-
 examples/sync/src/bin/server.rs                    |   49 +-
 examples/sync/src/databases/any.rs                 |   56 +-
 examples/sync/src/databases/current.rs             |   75 +-
 examples/sync/src/databases/immutable.rs           |   73 +-
 examples/sync/src/databases/mod.rs                 |   31 +-
 examples/sync/src/error.rs                         |    2 +-
 examples/sync/src/net/mod.rs                       |    3 +
 examples/sync/src/net/resolver.rs                  |   19 +-
 examples/sync/src/net/wire.rs                      |   48 +-
 justfile                                           |   16 +-
 macros/Cargo.toml                                  |    2 +-
 macros/impl/src/lib.rs                             |   37 +-
 macros/src/lib.rs                                  |    9 +-
 math/src/algebra.rs                                |   85 +-
 math/src/poly.rs                                   |   91 +-
 p2p/Cargo.toml                                     |    1 +
 p2p/fuzz/fuzz_targets/simulated.rs                 |   10 +-
 p2p/fuzz/src/lib.rs                                |   22 +-
 p2p/src/authenticated/data.rs                      |   10 +
 p2p/src/authenticated/dialing.rs                   |   48 +
 p2p/src/authenticated/discovery/actors/dialer.rs   |  254 +-
 .../authenticated/discovery/actors/peer/actor.rs   |  197 +-
 p2p/src/authenticated/discovery/actors/peer/mod.rs |    3 +-
 .../discovery/actors/spawner/actor.rs              |    5 +-
 .../authenticated/discovery/actors/spawner/mod.rs  |    3 +-
 .../discovery/actors/tracker/actor.rs              |  229 +-
 .../actors/tracker/{set.rs => bit_set.rs}          |   69 +-
 .../discovery/actors/tracker/directory.rs          |  902 +++++-
 .../discovery/actors/tracker/ingress.rs            |   38 +-
 .../discovery/actors/tracker/metrics.rs            |    4 +-
 .../authenticated/discovery/actors/tracker/mod.rs  |    9 +-
 .../discovery/actors/tracker/record.rs             |  530 ++--
 p2p/src/authenticated/discovery/config.rs          |   45 +-
 p2p/src/authenticated/discovery/mod.rs             |  194 +-
 p2p/src/authenticated/discovery/network.rs         |    5 +-
 p2p/src/authenticated/lookup/actors/dialer.rs      |  255 +-
 p2p/src/authenticated/lookup/actors/peer/actor.rs  |  319 +-
 p2p/src/authenticated/lookup/actors/peer/mod.rs    |    2 +
 .../authenticated/lookup/actors/spawner/actor.rs   |    4 +
 p2p/src/authenticated/lookup/actors/spawner/mod.rs |    3 +
 .../authenticated/lookup/actors/tracker/actor.rs   |  306 +-
 .../lookup/actors/tracker/directory.rs             | 1352 ++++++--
 .../authenticated/lookup/actors/tracker/ingress.rs |   38 +-
 .../authenticated/lookup/actors/tracker/metrics.rs |    4 +-
 p2p/src/authenticated/lookup/actors/tracker/mod.rs |    7 +-
 .../authenticated/lookup/actors/tracker/record.rs  |  529 ++--
 p2p/src/authenticated/lookup/config.rs             |   44 +-
 p2p/src/authenticated/lookup/mod.rs                |  164 +-
 p2p/src/authenticated/lookup/network.rs            |    5 +-
 p2p/src/authenticated/mod.rs                       |    1 +
 p2p/src/authenticated/relay.rs                     |   24 +
 p2p/src/lib.rs                                     |  156 +-
 p2p/src/simulated/ingress.rs                       |   39 +-
 p2p/src/simulated/mod.rs                           |  686 ++--
 p2p/src/simulated/network.rs                       |  881 ++++--
 p2p/src/utils/codec.rs                             |   24 +-
 p2p/src/utils/mocks/mod.rs                         |  108 +
 p2p/src/utils/mod.rs                               |   28 +-
 p2p/src/utils/mux.rs                               |   13 +-
 pipeline/minimmit/quint/replica.qnt                |    5 +-
 resolver/Cargo.toml                                |    2 +-
 resolver/src/lib.rs                                |    3 +
 resolver/src/p2p/config.rs                         |    4 +-
 resolver/src/p2p/engine.rs                         |   10 +-
 resolver/src/p2p/fetcher.rs                        |    9 +-
 resolver/src/p2p/mocks/mod.rs                      |    1 +
 resolver/src/p2p/mod.rs                            |  542 +++-
 resolver/src/p2p/wire.rs                           |   71 +-
 runtime/Cargo.toml                                 |    5 +
 runtime/src/deterministic.rs                       |  107 +-
 runtime/src/iobuf/aligned.rs                       | 1204 +++++++
 runtime/src/iobuf/benches/bench.rs                 |   45 +
 runtime/src/iobuf/benches/pool.rs                  |  318 ++
 runtime/src/iobuf/mod.rs                           |  843 ++++-
 runtime/src/iobuf/pool.rs                          | 2198 ++++++-------
 runtime/src/iouring/mod.rs                         | 2694 ++++++++++------
 runtime/src/iouring/request.rs                     | 1517 +++++++++
 runtime/src/iouring/timeout.rs                     | 1006 ++++++
 runtime/src/iouring/waiter.rs                      |  964 ++++++
 runtime/src/iouring/waker.rs                       |  369 +++
 runtime/src/lib.rs                                 |  301 +-
 runtime/src/network/audited.rs                     |  104 +-
 runtime/src/network/iouring.rs                     |  683 ++--
 runtime/src/network/mod.rs                         |  170 +-
 runtime/src/network/tokio.rs                       |   45 +-
 runtime/src/storage/audited.rs                     |   73 +-
 runtime/src/storage/iouring.rs                     |  781 +++--
 runtime/src/tokio/runtime.rs                       |  273 +-
 runtime/src/utils/buffer/benches/append.rs         |   28 +-
 runtime/src/utils/buffer/benches/bench.rs          |   13 +-
 runtime/src/utils/buffer/benches/read.rs           |   33 +-
 runtime/src/utils/buffer/paged/append.rs           |  304 +-
 runtime/src/utils/cell.rs                          |   24 +-
 runtime/src/utils/handle.rs                        |   39 +-
 runtime/src/utils/mod.rs                           |    2 +
 runtime/src/utils/supervision.rs                   |  381 ++-
 runtime/src/utils/thread.rs                        |  113 +
 scripts/find_unstable_public.sh                    |   10 +-
 scripts/rustc_stability_wrapper.sh                 |   11 +-
 storage/Cargo.toml                                 |   12 +-
 storage/conformance.toml                           |   66 +-
 storage/fuzz/Cargo.toml                            |   40 +-
 .../fuzz/fuzz_targets/current_crash_recovery.rs    |   84 +-
 .../fuzz_targets/current_ordered_operations.rs     |   59 +-
 .../fuzz_targets/current_unordered_batch_root.rs   |  200 ++
 .../fuzz_targets/current_unordered_operations.rs   |   59 +-
 storage/fuzz/fuzz_targets/extract_pinned_nodes.rs  |   38 -
 .../fuzz/fuzz_targets/fixed_journal_operations.rs  |   31 +-
 .../fuzz/fuzz_targets/merkle_family_operations.rs  |  326 ++
 storage/fuzz/fuzz_targets/merkle_journaled.rs      |  391 +++
 ...overy.rs => merkle_journaled_crash_recovery.rs} |  148 +-
 storage/fuzz/fuzz_targets/mmr_bitmap.rs            |   24 +-
 storage/fuzz/fuzz_targets/mmr_journaled.rs         |  382 ---
 storage/fuzz/fuzz_targets/mmr_operations.rs        |  351 ---
 storage/fuzz/fuzz_targets/oversized_recovery.rs    |   35 +-
 storage/fuzz/fuzz_targets/proof_store.rs           |   65 +-
 storage/fuzz/fuzz_targets/proofs_malleability.rs   |   44 +-
 storage/fuzz/fuzz_targets/qmdb_any_fixed_sync.rs   |   97 +-
 .../fuzz/fuzz_targets/qmdb_any_variable_sync.rs    |  142 +-
 storage/fuzz/fuzz_targets/qmdb_immutable.rs        |  357 ++-
 storage/fuzz/fuzz_targets/qmdb_keyless.rs          |  162 +-
 storage/fuzz/fuzz_targets/qmdb_ordered_batching.rs |  306 +-
 .../fuzz/fuzz_targets/qmdb_ordered_operations.rs   |  395 +--
 .../fuzz/fuzz_targets/qmdb_unordered_batch_root.rs |  192 ++
 .../fuzz/fuzz_targets/qmdb_unordered_operations.rs |  340 +-
 storage/fuzz/fuzz_targets/range_proof.rs           |    8 +-
 storage/fuzz/fuzz_targets/store_operations.rs      |   49 +-
 storage/fuzz/fuzz_targets/translator_operations.rs |  144 -
 storage/fuzz/fuzz_targets/verify_proof.rs          |    4 +-
 storage/src/archive/benches/utils.rs               |    7 +
 storage/src/archive/immutable/storage.rs           |   13 +-
 storage/src/archive/mod.rs                         |   13 +-
 storage/src/archive/prunable/mod.rs                |    9 +-
 storage/src/archive/prunable/storage.rs            |    4 +
 storage/src/bitmap/authenticated.rs                |  278 +-
 storage/src/cache/storage.rs                       |   18 +-
 storage/src/freezer/mod.rs                         |   10 +-
 storage/src/freezer/storage.rs                     |   49 +-
 storage/src/index/benches/bench.rs                 |   40 +
 storage/src/index/benches/insert.rs                |   30 +-
 storage/src/index/benches/lookup.rs                |   71 +
 storage/src/index/benches/lookup_miss.rs           |   98 +
 storage/src/index/mod.rs                           |    9 +
 storage/src/index/ordered.rs                       |    6 +
 storage/src/index/partitioned/ordered.rs           |    8 +
 storage/src/index/partitioned/unordered.rs         |    8 +
 storage/src/index/unordered.rs                     |    6 +
 storage/src/journal/authenticated.rs               | 3326 ++++++++++++--------
 storage/src/journal/contiguous/fixed.rs            |  147 +-
 storage/src/journal/contiguous/mod.rs              |   64 +
 storage/src/journal/contiguous/tests.rs            |  110 +-
 storage/src/journal/contiguous/variable.rs         |  152 +-
 storage/src/journal/mod.rs                         |    6 +-
 storage/src/journal/segmented/fixed.rs             |   35 +
 storage/src/journal/segmented/variable.rs          |   99 +-
 storage/src/kv/batch.rs                            |  172 -
 storage/src/kv/mod.rs                              |  124 -
 storage/src/lib.rs                                 |   18 +-
 storage/src/merkle/batch.rs                        | 1246 ++++++++
 storage/src/{mmr => merkle}/benches/append.rs      |   31 +-
 storage/src/merkle/benches/append_additional.rs    |   76 +
 storage/src/{mmr => merkle}/benches/bench.rs       |    0
 .../{mmr => merkle}/benches/prove_many_elements.rs |   47 +-
 .../benches/prove_single_element.rs                |   54 +-
 storage/src/{mmr => merkle}/benches/update.rs      |   57 +-
 storage/src/merkle/conformance.rs                  |   81 +
 storage/src/{mmr => merkle}/hasher.rs              |  180 +-
 storage/src/merkle/journaled.rs                    | 3133 ++++++++++++++++++
 storage/src/merkle/location.rs                     |  356 +++
 storage/src/merkle/mem.rs                          | 1357 ++++++++
 storage/src/merkle/mmb/batch.rs                    |   13 +
 storage/src/merkle/mmb/iterator.rs                 |  436 +++
 storage/src/merkle/mmb/journaled.rs                |   22 +
 storage/src/merkle/mmb/mem.rs                      |  242 ++
 storage/src/merkle/mmb/mod.rs                      |  582 ++++
 storage/src/merkle/mmb/proof.rs                    |   79 +
 storage/src/merkle/mmr/batch.rs                    |   13 +
 storage/src/{ => merkle}/mmr/iterator.rs           |  168 +-
 storage/src/merkle/mmr/journaled.rs                |  346 ++
 storage/src/merkle/mmr/mem.rs                      |  294 ++
 storage/src/merkle/mmr/mod.rs                      |  804 +++++
 storage/src/merkle/mmr/proof.rs                    |  404 +++
 storage/src/merkle/mmr/verification.rs             |   57 +
 storage/src/merkle/mod.rs                          |  264 ++
 storage/src/merkle/path.rs                         |   89 +
 storage/src/{mmr => merkle}/position.rs            |  361 ++-
 storage/src/merkle/proof.rs                        | 1922 +++++++++++
 storage/src/merkle/read.rs                         |   92 +
 storage/src/merkle/storage.rs                      |   36 +
 storage/src/merkle/verification.rs                 |  443 +++
 storage/src/metadata/storage.rs                    |    9 +-
 storage/src/mmr/batch.rs                           | 1288 --------
 storage/src/mmr/benches/append_additional.rs       |   68 -
 storage/src/mmr/conformance.rs                     |   47 -
 storage/src/mmr/journaled.rs                       | 2850 -----------------
 storage/src/mmr/location.rs                        |  607 ----
 storage/src/mmr/mem.rs                             | 1443 ---------
 storage/src/mmr/mod.rs                             |  160 -
 storage/src/mmr/proof.rs                           | 1723 ----------
 storage/src/mmr/read.rs                            |   74 -
 storage/src/mmr/storage.rs                         |   29 -
 storage/src/mmr/verification.rs                    |  239 --
 storage/src/ordinal/storage.rs                     |   46 +-
 storage/src/qmdb/any/batch.rs                      | 2304 +++++++++-----
 storage/src/qmdb/any/db.rs                         |  456 ++-
 storage/src/qmdb/any/mod.rs                        | 1546 ++++++---
 storage/src/qmdb/any/operation/fixed.rs            |  140 +-
 storage/src/qmdb/any/operation/mod.rs              |  141 +-
 storage/src/qmdb/any/operation/update/mod.rs       |   16 +-
 storage/src/qmdb/any/operation/update/ordered.rs   |   25 +-
 storage/src/qmdb/any/operation/update/unordered.rs |   28 +-
 storage/src/qmdb/any/operation/variable.rs         |   97 +-
 storage/src/qmdb/any/ordered/fixed.rs              |  986 +++---
 storage/src/qmdb/any/ordered/mod.rs                |  431 +--
 storage/src/qmdb/any/ordered/variable.rs           |  413 ++-
 storage/src/qmdb/any/sync/mod.rs                   |  295 +-
 storage/src/qmdb/any/sync/tests.rs                 |  772 +++--
 storage/src/qmdb/any/traits.rs                     |  213 +-
 storage/src/qmdb/any/unordered/fixed.rs            |  803 ++---
 storage/src/qmdb/any/unordered/mod.rs              |  125 +-
 storage/src/qmdb/any/unordered/variable.rs         | 1106 +++++--
 storage/src/qmdb/any/value.rs                      |    2 +-
 storage/src/qmdb/benches/bench.rs                  |    9 +
 storage/src/qmdb/benches/bench_merkleize.rs        |   13 +
 storage/src/qmdb/benches/common.rs                 |  550 ++++
 storage/src/qmdb/benches/fixed/generate.rs         |  131 -
 storage/src/qmdb/benches/fixed/init.rs             |  220 --
 storage/src/qmdb/benches/fixed/mod.rs              |  285 --
 storage/src/qmdb/benches/generate.rs               |  161 +
 storage/src/qmdb/benches/generate_bench.rs         |   17 -
 storage/src/qmdb/benches/init.rs                   |  147 +
 storage/src/qmdb/benches/init_bench.rs             |   15 -
 storage/src/qmdb/benches/keyless/generate.rs       |  111 -
 storage/src/qmdb/benches/keyless/mod.rs            |    3 -
 storage/src/qmdb/benches/merkleize.rs              |  630 ++++
 storage/src/qmdb/benches/variable/generate.rs      |  107 -
 storage/src/qmdb/benches/variable/init.rs          |  158 -
 storage/src/qmdb/benches/variable/mod.rs           |  193 --
 storage/src/qmdb/current/batch.rs                  | 1762 +++++------
 storage/src/qmdb/current/db.rs                     |  885 +++---
 storage/src/qmdb/current/grafting.rs               |  877 ++++--
 storage/src/qmdb/current/mod.rs                    | 2292 +++++++++++---
 storage/src/qmdb/current/ordered/db.rs             |   80 +-
 storage/src/qmdb/current/ordered/fixed.rs          |  699 +---
 storage/src/qmdb/current/ordered/mod.rs            |  794 ++++-
 .../src/qmdb/current/ordered/test_trait_impls.rs   |   97 +-
 storage/src/qmdb/current/ordered/variable.rs       |  691 +---
 storage/src/qmdb/current/proof.rs                  |  963 +++++-
 storage/src/qmdb/current/sync/mod.rs               |  498 ++-
 storage/src/qmdb/current/sync/tests.rs             |  191 +-
 storage/src/qmdb/current/unordered/db.rs           |   66 +-
 storage/src/qmdb/current/unordered/fixed.rs        |  434 +--
 storage/src/qmdb/current/unordered/mod.rs          |  501 ++-
 .../src/qmdb/current/unordered/test_trait_impls.rs |   96 +-
 storage/src/qmdb/current/unordered/variable.rs     |  451 +--
 storage/src/qmdb/immutable/batch.rs                |  356 ++-
 storage/src/qmdb/immutable/fixed.rs                |  674 ++++
 storage/src/qmdb/immutable/mod.rs                  | 2967 +++++++++--------
 storage/src/qmdb/immutable/operation.rs            |  305 --
 storage/src/qmdb/immutable/operation/fixed.rs      |  172 +
 storage/src/qmdb/immutable/operation/mod.rs        |  176 ++
 storage/src/qmdb/immutable/operation/variable.rs   |  185 ++
 storage/src/qmdb/immutable/sync.rs                 |  334 +-
 storage/src/qmdb/immutable/variable.rs             |  698 ++++
 storage/src/qmdb/keyless/batch.rs                  |  312 +-
 storage/src/qmdb/keyless/fixed.rs                  |  575 ++++
 storage/src/qmdb/keyless/mod.rs                    | 3043 +++++++++---------
 storage/src/qmdb/keyless/operation.rs              |  158 -
 storage/src/qmdb/keyless/operation/fixed.rs        |  155 +
 storage/src/qmdb/keyless/operation/mod.rs          |  143 +
 storage/src/qmdb/keyless/operation/variable.rs     |  118 +
 storage/src/qmdb/keyless/variable.rs               |  608 ++++
 storage/src/qmdb/mod.rs                            |  151 +-
 storage/src/qmdb/operation.rs                      |   11 +-
 storage/src/qmdb/store/db.rs                       |  657 ++--
 storage/src/qmdb/store/mod.rs                      |  122 +-
 storage/src/qmdb/sync/database.rs                  |   39 +-
 storage/src/qmdb/sync/engine.rs                    |  602 +++-
 storage/src/qmdb/sync/error.rs                     |    7 +-
 storage/src/qmdb/sync/gaps.rs                      |   14 +-
 storage/src/qmdb/sync/journal.rs                   |    9 +-
 storage/src/qmdb/sync/requests.rs                  |  100 +-
 storage/src/qmdb/sync/resolver.rs                  |  249 +-
 storage/src/qmdb/sync/target.rs                    |  127 +-
 storage/src/qmdb/verify.rs                         | 1112 ++++---
 storage/src/queue/shared.rs                        |   17 +-
 storage/src/queue/storage.rs                       |   16 +-
 storage/src/rmap/mod.rs                            |   93 +
 storage/src/translator.rs                          |   71 +-
 stream/src/encrypted.rs                            |  664 +++-
 stream/src/utils/codec.rs                          |   95 +-
 utils/conformance.toml                             |    8 +
 utils/src/bitmap/mod.rs                            |  307 ++
 utils/src/bitmap/prunable.rs                       |  282 +-
 utils/src/lib.rs                                   |    7 +
 utils/src/ordered.rs                               |    8 +
 utils/src/range.rs                                 |  207 ++
 utils/src/rng.rs                                   |   33 +-
 utils/src/sync/mod.rs                              |    2 +-
 zepter.yaml                                        |    2 +-
 431 files changed, 76814 insertions(+), 37693 deletions(-)

New Contributors

• @voith made their first contribution in #3414
• @guruvamsi-policharla made their first contribution in #3462

Full Changelog: v2026.3.0...v2026.4.0