24th Feb 2026 - Height Coordinated Upgrade on Mainnet28 at Block Height 143290500

What's Changed

Zero-Downtime HCU

• Add more improvements by @zhangchiqing in #8350
• POC Ledger Service by @zhangchiqing in #8309

FVM

• Remove unused error by @janezpodhostnik in #8393

FlowEVM

• Implement ABI encoding/decoding for arrays of Solidity tuples by @m-Peter in #8371
• Optimize EVMDecodeABI by removing an ArrayValue iteration by @fxamacker in #8397
• Optimize EVMEncodeABI by removing an ArrayValue iteration by @fxamacker in #8398
• Optimize EVMEncodeABI by creating Go reflect types at startup and reusing them by @fxamacker in #8399
• Optimize EVM dryCall by removing RLP encoding/decoding by @fxamacker in #8400
• Remove EOA restriction functionality from EVM by @m-Peter in #8408
• Add new EVM functions that can be used to reduce computation cost of transactions by @fxamacker in #8418
• Optimize and reduce computation cost of four EVM functions by @fxamacker in #8434
• Add strict hex-prefix check when parsing EVM addresses from String by @m-Peter in #8437
• Add proper meter and gas limit checks for EVM dry operations by @m-Peter in #8416

Cadence

• Update to Cadence v1.9.8 by @turbolent in #8395
• Update to Cadence v1.9.9 by @turbolent in #8412
• Update to Cadence v1.9.10 by @turbolent in #8461

Data Availability

• Add index for account transactions by @peterargue in #8381
• Refactor jobqueue to require initialized progress consumer - take 2 by @peterargue in #8404
• Fix ParseAddress() by only removing prefix "0x" by @fxamacker in #8453
• fix event cache corruption by @peterargue in #8448
• Add computation used to transaction results API responses by @peterargue in #8451
• Don't require stateStreamBackend in access bootstrap by @peterargue in #8463
• update AN version by @j1010001 in #8455

Network

• Remove unnecessary CAS guard from SubscriptionProvider.updateTopics() by @zhangchiqing in #8407
• Reduce logging for creating libp2p streams by @peterargue in #8417

Core Contracts

• Update to the latest version of flow-core-contracts by @joshuahannan in #8415

CI/CD

• Fix flaky epoch test by @janezpodhostnik in #8394
• Switch to onflow fork for testingdock with updated docker by @peterargue in #8411
• go fix: remove obsolete +build directives by @tim-barry in #8422
• Mockery fixes by @janezpodhostnik in #8423
• Run go fix by @tim-barry in #8435

Tooling

• Add --require-beacon-key flag to fail fast on missing DKG keys at consensus node startup by @zhangchiqing in #8410

Docs

• Cleanup agent docs by @peterargue in #8403

Code Cleanup

• Cleanup unused kubernetes related deployments by @janezpodhostnik in #8384
• Cleanup bors references by @janezpodhostnik in #8386

Misc

• Pin tagged version of lockctx by @jordanschalm in #8420

Full Changelog: v0.46.1...v0.47.0

13th Feb 2026 - Height Coordinated Upgrade on Mainnet28 at Block Height 142099300

What's Changed

• [v0.46] Update to Cadence v1.9.9 by @turbolent in #8413

Full Changelog: v0.46.0...v0.46.1

6th Feb 2026 - Height Coordinated Upgrade on Mainnet28 at Block Height 141342222

What's Changed

Data Availability

• Fix race condition with block collection indexing by @peterargue in #8377
• Access ingestion error handle by @zhangchiqing in #8385
• add AN compatibility for v0.46.0 by @j1010001 in #8392

Cadence

• Update to Cadence v1.9.7 by @turbolent in #8374
• Update to Cadence v1.9.8 by @turbolent in #8396

Collection

• Close network conduit for cluster epoch-specific engines by @tim-barry in #8363
• Unexport reusable runtime by @janezpodhostnik in #8373

FVM

• Fix lint warning by @janezpodhostnik in #8380

CI/CD

• Fix lint warning by @janezpodhostnik in #8380
• Upgrade mockery by @janezpodhostnik in #8322
• Remove unused revive by @janezpodhostnik in #8387

Misc

• Cleanup flips folder by @janezpodhostnik in #8388

Full Changelog: v0.45.0...v0.46.0

29th Jan 2026 - Height Coordinated Upgrade on Mainnet28 at Block Height 140478444

What's Changed

Move ledger to standalone service

• Normalize nil payload value encoding to empty slice by @zhangchiqing in #8307

Stricter transaction verification

• Transactions must now include signatures only from accounts serving as payer, proposer, or authorizer. Transactions containing extra or redundant signatures from non-role accounts will be rejected by the FVM and Access API.
  • FVM tx verifier improvements by @tarakby in #8335

BFT

• Add playbook for root block voting by @sjonpaulbrown in #7744
• Extend CombinedVoteProcessorV3 by @durkmurder in #7918
• Suggested amendments for PR 7918 by @AlexHentschel in #8138
• Refactor with hotstuff.Distributor by @zhangchiqing in #8156
• Requester Engine update to follow guidelines by @durkmurder in #8205
• Suggestions for Requester Engine (PR #8205) by @jordanschalm in #8254

Data Availability

• Add AN compatibility for v0.44.0 by @j1010001 in #8144
• Remove sealed result index by @zhangchiqing in #8147
• Allow reindexing last block's protocol data by @peterargue in #8165
• Compatible Range in node version info does not reflect compatibility overrides by @UlyanaAndrukhiv in #8199
• Refactor optimistic sync pipeline by @peterargue in #8201
• Fix error codes for transactions endpoints during HCU #8178 by @UlyanaAndrukhiv in #8215
• Add compatibility override for v0.44.1 - master by @peterargue in #8216
• Indexer remove redundant header reads by @zhangchiqing in #8226
• Add endpoints to get transaction and results by block by @AndriiDiachuk in #8240
• port AN compatibility changes to master by @j1010001 in #8319
• add AN compatibility for v0.45.0 by @j1010001 in #8364
• add back quotes for DISABLE_ADX flag by @j1010001 in #8365

Flow EVM

• Truncate amount on COA.withdraw call to maximum Flow token vault precision by @m-Peter in #6877
• Apply any given SetCodeAuthorization list to DryCall by @m-Peter in #8160
• Fix EVM gas overflow in FVM - port from internal by @janezpodhostnik in #8181
• Always enable EVM in FVM by @turbolent in #8211
• Add support for ABI encoding/decoding Cadence structs as tuples by @turbolent in #8259
• Add functionality to restrict EOAs from accessing EVM by @m-Peter in #8310
• Improve error handling for Cadence Arch precompiles by @m-Peter in #8341
• Check for integer overflow when reading ABI encoded bytes by @m-Peter in #8357
• Update to latest ethereum/go-ethereum version by @m-Peter in #8360
• Handle empty RLP list in Cadence Arch verifyCOAOwnershipProof() by @m-Peter in #8361

FVM

• Rename schedulde callbacks to transactions by @devbugging in #8109
• Update Testnet System Colletion Version by @janezpodhostnik in #8140
• Deploy LockedTokens and StakingCollection after scheduled transactions by @joshuahannan in #8145
• Add Mainnet System Collection Version Boundary by @janezpodhostnik in #8151
• Update execution effort weights as per FLIP 346 by @janezpodhostnik in #8152
• Add MonotonicEmulator to transient chains by @jribbink in #8157
• Improve conversion of Flow address to Cadence address by @turbolent in #8214
• Update machine account balance recommendations by @jordanschalm in #8242
• Expose transaction index to Cadence by @janezpodhostnik in #8252
• Fix concurent execution metrics by @janezpodhostnik in #8261
• Add chain as a parameter to the runtime pool by @janezpodhostnik in #8302
• Resolve reusable runtime environment import cycle by @janezpodhostnik in #8303
• Remove unused ExecutedCollectionConsumer by @janezpodhostnik in #8306
• Make Chain a non-optional part of context construction by @janezpodhostnik in #8312
• Change InternalEVM injection to happen once by @janezpodhostnik in #8313
• Add account key metadata utility functions to FVM pkgs by @fxamacker in #8315
• Remove public key deduplication migration and diff key program by @fxamacker in #8316
• Split the Script and Transction runtimes earlier in the stack to avoid missuse by @janezpodhostnik in #8321
• Refactor cadence declarations in FVM by @janezpodhostnik in #8356

Collection node decentralization

• Update randomness used during bootstrapping by @tim-barry in #7978
• Add cluster bootstrapping commands by @tim-barry in #8013
• Collector nodes participate in bootstrapping by @tim-barry in #8124
• Sync collector bootstrapping with master by @tim-barry in #8189

Storage

• Refactor index execution result by @zhangchiqing in #8005
• Optimize CollectionFinalized with BlockIDByCollectionID by @zhangchiqing in #8186
• concurrency-safe vertex iterators for levelled forest by @AlexHentschel in #8202
• Support getting number of children of non-existent vertex in Levelled Forest by @jordanschalm in #8207

Storehouse

• Background storehouse indexing by @zhangchiqing in #8255
• Storehouse checkpoint validator by @zhangchiqing in #8257

Cadence

• Update to Cadence v1.8.5 by @turbolent in #8188
• Update to Cadence v1.8.6 by @turbolent in #8192
• Update to Cadence v1.8.7 by @turbolent in #8209
• Update to Cadence v1.9.1 by @turbolent in #8234
• Update to Cadence v1.9.2 by @turbolent in #8262
• Update to Cadence v1.9.3 by @turbolent in #8298
• Update to Cadence v1.9.4 by @turbolent in #8318
• Update to Cadence v1.9.5 by @turbolent in #8346
• Update to Cadence v1.9.6 by @turbolent in #8362
• Update to Cadence v1.9.7 and atree v0.12.1 by @turbolent in #8372

Testing

• Collection cluster bootstrapping+voting test by @tim-barry in #8091
• Fix benchmark manual cmd by @zhangchiqing in #8153
• Add scripts for debugging integration tests by @zhangchiqing in #8164
• Skip wintermute test suite due to flakiness by @zhangchiqing in #8187

CI

• update golangci-lint by @peterargue in #8223
• Fix ST1019 static lint errors by @peterargue in #8225
• chore: remove repetitive word in comment by @xiaolinny in #8237
• Bump convictional/trigger-workflow-and-wait action to v1.6.5 by @manny-yes in #8294
• Makefile and build fixes by @janezpodhostnik in #8355

New Contributors

• @xiaolinny made their first contribution in #8237

Full Changelog: v0.44.19...v0.45.0

14th Jan 2026 - Rolling Upgrade on Mainnet28

What's Changed

• This update revers the special privileges greanted earlier to the Service Account.
  • Revert: Add service account override by @janezpodhostnik in #8324
• [Flow EVM] Add test cases for restricted EOA functionality by @m-Peter in #8297

Full Changelog: v0.44.18...v0.44.19

6th Jan 2026 - Height Coordinated Upgrade on Mainnet28 at Block Height 138127900

What's Changed

• Add EVM function to reclaim ERC20 tokens from attacker's EOA addresses by @m-Peter in #8293
• Revert pr8293 by @j1010001 in #8300
• [v0.44] Update to Cadence v1.8.12 by @turbolent in #8304

Full Changelog: v0.44.17...v0.44.18

3rd Jan 2026 - Height Coordinated Upgrade on Mainnet28 at Block Height 137876444

What's Changed

• add AN compatibility for v0.44.14 - restrict only EOAs by @j1010001 in #8289
• Restrict EVM access to EOAs with proven malicious activity by @m-Peter in #8272
• Access node fix script execution with evm by @zhangchiqing in #8290
• [v0.44] Update to cadence 1.8.11 by @SupunS in #8291
• add an compatibility for v0.44.15-17 by @j1010001 in #8292

Full Changelog: v0.44.14-rc.1...v0.44.17

2nd Jan 2026 - Height Coordinated Upgrade on Mainnet28 at Block Height 137763100

What's Changed

• Suggestion to 8272: move the msg.From check to proc.run by @zhangchiqing in #8286
• add AN compatibility for v0.44.13 by @j1010001 in #8288

Full Changelog: v0.44.10-rc.1...v0.44.14-rc.1

1st Jan 2026 - Height Coordinated Upgrade on Mainnet28 at Block Height 137690500

What's Changed

• [Access] Add compatibility override for v0.44.7 by @j1010001 in #8281

Full Changelog: v0.44.7...v0.44.10-rc.1

30th Dec 2025 - Height Coordinated Upgrade on Mainnet28 at Block Height 137603625

What's Changed

• Add account restricting by @janezpodhostnik in #8271
• Add Service account overide by @janezpodhostnik in #8273
• Review comments changes for 8275 by @zhangchiqing in #8278
• Allow transactions authorized by restricted account but payed by service account by @turbolent in #8275

Full Changelog: v0.44.4...v0.44.7