v22.1.0

Stability Fixes

• fsync on BucketIndex writes by @SirTyson in #4549. Improve crash-resistance of bucket index files.
• Add docs for Ubuntu 24.04 builds by @SirTyson in #4505
• Document TRY_AGAIN_LATER and FILTERED error codes in tx endpoint by @marta-lokhova in #4499
• Fix tracy by @graydon in #4500
• Skip DB migration on nodes where publish is disabled by @marta-lokhova in #4509
• error -> warn on archive access issues by @ThomasBrady in #4508
• Do not attempt to recover files when minimal catchup is performed by @marta-lokhova in #4513
• Clean RUST_TARGET_DIR when soroban rlibs change by @graydon in #4510
• Split out --enable-tracy-memory-tracking, disabled by default by @graydon in #4512
• Update stellar-core p22 env submodule to rc3 by @anupsdf in #4515
• Revert downgrading of log error->warn->error by @ThomasBrady in #4511
• Extract rust-toolchain.toml channel, pass to submodules by @graydon in #4518
• Update soroban p21 version to 21.2.2, taking binary-search change. by @graydon in #4519
• More asan and tracy fixes by @graydon in #4525
• Resource calculator: rework to calculate multiple deployment phases at once by @MonsieurNicolas in #4532
• Error and exit on validator configs that contain only LOW validators by @bboston7 in #4528
• Fix incorrect argument names for --trusted-hash-file in commands.md by @ThomasBrady in #4531
• Cleanup apply and validation flows by @marta-lokhova in #4471
• Add a test that covers transaction set building logic on randomized data. by @dmkozh in #4507
• Misc fixes/improvements for tx generator. by @dmkozh in #4529
• Bump core to env v22.0.0 commit and fix build by @sisuresh in #4537
• Wait on merges in apply-load by @sisuresh in #4538
• Update resource calculator with latest soroban resource limits by @anupsdf in #4540
• Rewrite versioning-soroban.md to account for recent changes by @graydon in #4514
• null check dynamic casts by @SirTyson in #4548
• De-dupe inbound SCP traffic by @marta-lokhova in #4544
• Harden publishing by @marta-lokhova in #4555
• Archival bucketlist by @SirTyson in #4403
• Improves stellar-core-debug-info script and adds docs by @SirTyson in #4553
• Visual C++ - don't pass the release flag to cargo for debug builds by @MonsieurNicolas in #4560
• Handle soroban loadgen mode misconfig gracefully by @ThomasBrady in #4559
• Remove extra arg in LedgerCloseData constructor call for non buildtest by @ThomasBrady in #4563

New Features

• Incremental verify checkpoints by @ThomasBrady in #4487
• Enable background overlay by default, drop 'experimental' prefix by @marta-lokhova in #4534
• Add new catchup mode to use transaction results to skip failed transaction and signature verification by @ThomasBrady in #4536
• Add script to generate transaction histograms from Hubble data by @bboston7 in #4554

Breaking Changes

• publish: build checkpoint files during ledger close by @marta-lokhova in #4446. Drop support for txhistory, txsethistory and upgradehistory SQL tables. Drop --force-back option from run command.

Future Deprecation Warning

• The support for --in-memory mode will be dropped in the next release.
• The support for cursors will be dropped in the next release.

Full Changelog: v22.0.0...v22.1.0rc2

v22.1.0rc1

Stability Fixes

• fsync on BucketIndex writes by @SirTyson in #4549. Improve crash-resistance of bucket index files.
• Add docs for Ubuntu 24.04 builds by @SirTyson in #4505
• Document TRY_AGAIN_LATER and FILTERED error codes in tx endpoint by @marta-lokhova in #4499
• Fix tracy by @graydon in #4500
• Skip DB migration on nodes where publish is disabled by @marta-lokhova in #4509
• error -> warn on archive access issues by @ThomasBrady in #4508
• Do not attempt to recover files when minimal catchup is performed by @marta-lokhova in #4513
• Clean RUST_TARGET_DIR when soroban rlibs change by @graydon in #4510
• Split out --enable-tracy-memory-tracking, disabled by default by @graydon in #4512
• Update stellar-core p22 env submodule to rc3 by @anupsdf in #4515
• Revert downgrading of log error->warn->error by @ThomasBrady in #4511
• Extract rust-toolchain.toml channel, pass to submodules by @graydon in #4518
• Update soroban p21 version to 21.2.2, taking binary-search change. by @graydon in #4519
• More asan and tracy fixes by @graydon in #4525
• Resource calculator: rework to calculate multiple deployment phases at once by @MonsieurNicolas in #4532
• Error and exit on validator configs that contain only LOW validators by @bboston7 in #4528
• Fix incorrect argument names for --trusted-hash-file in commands.md by @ThomasBrady in #4531
• Cleanup apply and validation flows by @marta-lokhova in #4471
• Add a test that covers transaction set building logic on randomized data. by @dmkozh in #4507
• Misc fixes/improvements for tx generator. by @dmkozh in #4529
• Bump core to env v22.0.0 commit and fix build by @sisuresh in #4537
• Wait on merges in apply-load by @sisuresh in #4538
• Update resource calculator with latest soroban resource limits by @anupsdf in #4540
• Rewrite versioning-soroban.md to account for recent changes by @graydon in #4514
• null check dynamic casts by @SirTyson in #4548
• De-dupe inbound SCP traffic by @marta-lokhova in #4544
• Harden publishing by @marta-lokhova in #4555
• Archival bucketlist by @SirTyson in #4403
• Improves stellar-core-debug-info script and adds docs by @SirTyson in #4553
• Visual C++ - don't pass the release flag to cargo for debug builds by @MonsieurNicolas in #4560
• Handle soroban loadgen mode misconfig gracefully by @ThomasBrady in #4559
• Remove extra arg in LedgerCloseData constructor call for non buildtest by @ThomasBrady in #4563

New Features

• Incremental verify checkpoints by @ThomasBrady in #4487
• Enable background overlay by default, drop 'experimental' prefix by @marta-lokhova in #4534
• Add new catchup mode to use transaction results to skip failed transaction and signature verification by @ThomasBrady in #4536
• Add script to generate transaction histograms from Hubble data by @bboston7 in #4554

Breaking Changes

• publish: build checkpoint files during ledger close by @marta-lokhova in #4446. Drop support for txhistory, txsethistory and upgradehistory SQL tables. Drop --force-back option from run command.

Future Deprecation Warning

• The support for --in-memory mode will be dropped in the next release.

Full Changelog: v22.0.0...v22.1.0rc2

v22.0.0

Release notes

This is the first Core release supporting protocol 22.

New features in protocol 22

• Constructor support in Soroban: https://github.com/stellar/stellar-protocol/blob/master/core/cap-0058.md.
• Soroban host functions for BLS12-381: https://github.com/stellar/stellar-protocol/blob/master/core/cap-0059.md.

What's Changed

• Update p22 submodule to rs-soroban-env v22.0.0-rc.3 to release/v22.0.0 branch stellar-core rc3 by @anupsdf in #4516
• Bump stellar-core rust version to 1.82 by @anupsdf in #4517
• Update soroban p21 version to 21.2.2, taking binary-search change. by @graydon in #4521
• Build system changes for v22.0.0 by @graydon in #4522
• non-existent entries should not be metered by @ThomasBrady in #4428
• High performance getledgerentry by @SirTyson in #4350
• Enable background eviction by default & drop support for EXPERIMENTAL_BACKGROUND_EVICTION_SCAN by @SirTyson in #4416
• generalize support for multiple soroban hosts by @graydon in #4434
• Check error type by @sisuresh in #4438
• Fix test to not load unused setting by @sisuresh in #4440
• Visual Studio/MSVC build fixes by @dmkozh in #4443
• Soroban upgrades for simulation tests by @ThomasBrady in #4413
• Add support for Soroban constructors (CAP-58) by @dmkozh in #4442
• docs: add overlay intro and fix typos by @marta-lokhova in #4420
• bugfix: guard access to mNoOutboundCapacity by @marta-lokhova in #4458
• Windows fixes by @MonsieurNicolas in #4449
• initial commit: Jupyter notebook to help estimate network settings by @MonsieurNicolas in #4452
• Switch Soroban tests to always use closeLedger to apply txs. by @dmkozh in #4455
• Fix exception-safety in callbacks from Rust to C++ by @graydon in #4463
• Switch read-only LedgerTxn to BucketList snapshots by @marta-lokhova in #4431
• Cache BL snapshot for re-use by @marta-lokhova in #4465
• ✍🏿 Capitalize headers for clarity by @JFWooten4 in #4460
• Change default test backend to BucketListDB by @SirTyson in #4462
• Use TESTDB_IN_MEMORY_OFFERS in BucketListIsConsistentWithDatabaseTests by @sisuresh in #4466
• Bucket entry counters and metrics by @ThomasBrady in #4436
• Update weight function to fix bias in nomination by @bboston7 in #4453
• Add 'phase 1' testnet settings that we need to apply after every reset. by @dmkozh in #4467
• Apply time benchmarking by @sisuresh in #4402
• tx queue update by @sisuresh in #4468
• Add SOROBAN_TEST_EXTRA_PROTOCOL for side-by-side testing by @graydon in #4439
• Fix compiler error when tests are disabled by @SirTyson in #4472
• Update Core to protocol 22. by @dmkozh in #4464
• Multiple rust libraries with submodules by @graydon in #4456
• use --all-targets on cargo tree by @graydon in #4474
• Added Ubuntu 24.04 clang-format-12 install instructions by @SirTyson in #4476
• Bump to latest end and update contract cost params for V22 by @sisuresh in #4475
• Try stamp files rather than group rules for sequencing by @graydon in #4478
• Bump env to version with wasmi 0.36.1 by @graydon in #4482
• Fix upgrade validation by @sisuresh in #4485
• Testutils bug(s) by @graydon in #4489
• Fix MSVS project. by @dmkozh in #4490
• Bump env to 22.0.0-rc2 by @sisuresh in #4494
• Update v22 cost types for rolling back wasmi change by @sisuresh in #4495
• JSON file for proposing phase5 network settings by @anupsdf in #4491

New Contributors

• @JFWooten4 made their first contribution in #4460

Full Changelog: v21.3.1...v22.0.0rc3

v22.0.0rc3

Release notes

This is the first Core release supporting protocol 22.

New features in protocol 22

• Constructor support in Soroban: https://github.com/stellar/stellar-protocol/blob/master/core/cap-0058.md.
• Soroban host functions for BLS12-381: https://github.com/stellar/stellar-protocol/blob/master/core/cap-0059.md.

What's Changed

• Update p22 submodule to rs-soroban-env v22.0.0-rc.3 to release/v22.0.0 branch stellar-core rc3 by @anupsdf in #4516
• Bump stellar-core rust version to 1.82 by @anupsdf in #4517
• Update soroban p21 version to 21.2.2, taking binary-search change. by @graydon in #4521
• Build system changes for v22.0.0 by @graydon in #4522
• non-existent entries should not be metered by @ThomasBrady in #4428
• High performance getledgerentry by @SirTyson in #4350
• Enable background eviction by default & drop support for EXPERIMENTAL_BACKGROUND_EVICTION_SCAN by @SirTyson in #4416
• generalize support for multiple soroban hosts by @graydon in #4434
• Check error type by @sisuresh in #4438
• Fix test to not load unused setting by @sisuresh in #4440
• Visual Studio/MSVC build fixes by @dmkozh in #4443
• Soroban upgrades for simulation tests by @ThomasBrady in #4413
• Add support for Soroban constructors (CAP-58) by @dmkozh in #4442
• docs: add overlay intro and fix typos by @marta-lokhova in #4420
• bugfix: guard access to mNoOutboundCapacity by @marta-lokhova in #4458
• Windows fixes by @MonsieurNicolas in #4449
• initial commit: Jupyter notebook to help estimate network settings by @MonsieurNicolas in #4452
• Switch Soroban tests to always use closeLedger to apply txs. by @dmkozh in #4455
• Fix exception-safety in callbacks from Rust to C++ by @graydon in #4463
• Switch read-only LedgerTxn to BucketList snapshots by @marta-lokhova in #4431
• Cache BL snapshot for re-use by @marta-lokhova in #4465
• ✍🏿 Capitalize headers for clarity by @JFWooten4 in #4460
• Change default test backend to BucketListDB by @SirTyson in #4462
• Use TESTDB_IN_MEMORY_OFFERS in BucketListIsConsistentWithDatabaseTests by @sisuresh in #4466
• Bucket entry counters and metrics by @ThomasBrady in #4436
• Update weight function to fix bias in nomination by @bboston7 in #4453
• Add 'phase 1' testnet settings that we need to apply after every reset. by @dmkozh in #4467
• Apply time benchmarking by @sisuresh in #4402
• tx queue update by @sisuresh in #4468
• Add SOROBAN_TEST_EXTRA_PROTOCOL for side-by-side testing by @graydon in #4439
• Fix compiler error when tests are disabled by @SirTyson in #4472
• Update Core to protocol 22. by @dmkozh in #4464
• Multiple rust libraries with submodules by @graydon in #4456
• use --all-targets on cargo tree by @graydon in #4474
• Added Ubuntu 24.04 clang-format-12 install instructions by @SirTyson in #4476
• Bump to latest end and update contract cost params for V22 by @sisuresh in #4475
• Try stamp files rather than group rules for sequencing by @graydon in #4478
• Bump env to version with wasmi 0.36.1 by @graydon in #4482
• Fix upgrade validation by @sisuresh in #4485
• Testutils bug(s) by @graydon in #4489
• Fix MSVS project. by @dmkozh in #4490
• Bump env to 22.0.0-rc2 by @sisuresh in #4494
• Update v22 cost types for rolling back wasmi change by @sisuresh in #4495
• JSON file for proposing phase5 network settings by @anupsdf in #4491

New Contributors

• @JFWooten4 made their first contribution in #4460

Full Changelog: v21.3.1...v22.0.0rc3

v22.0.0rc2

Release notes

This is the first Core release supporting protocol 22.

New features in protocol 22

• Constructor support in Soroban: https://github.com/stellar/stellar-protocol/blob/master/core/cap-0058.md.
• Soroban host functions for BLS12-381: https://github.com/stellar/stellar-protocol/blob/master/core/cap-0059.md.

What's Changed

• non-existent entries should not be metered by @ThomasBrady in #4428
• High performance getledgerentry by @SirTyson in #4350
• Enable background eviction by default & drop support for EXPERIMENTAL_BACKGROUND_EVICTION_SCAN by @SirTyson in #4416
• generalize support for multiple soroban hosts by @graydon in #4434
• Check error type by @sisuresh in #4438
• Fix test to not load unused setting by @sisuresh in #4440
• Visual Studio/MSVC build fixes by @dmkozh in #4443
• Soroban upgrades for simulation tests by @ThomasBrady in #4413
• Add support for Soroban constructors (CAP-58) by @dmkozh in #4442
• docs: add overlay intro and fix typos by @marta-lokhova in #4420
• bugfix: guard access to mNoOutboundCapacity by @marta-lokhova in #4458
• Windows fixes by @MonsieurNicolas in #4449
• initial commit: Jupyter notebook to help estimate network settings by @MonsieurNicolas in #4452
• Switch Soroban tests to always use closeLedger to apply txs. by @dmkozh in #4455
• Fix exception-safety in callbacks from Rust to C++ by @graydon in #4463
• Switch read-only LedgerTxn to BucketList snapshots by @marta-lokhova in #4431
• Cache BL snapshot for re-use by @marta-lokhova in #4465
• ✍🏿 Capitalize headers for clarity by @JFWooten4 in #4460
• Change default test backend to BucketListDB by @SirTyson in #4462
• Use TESTDB_IN_MEMORY_OFFERS in BucketListIsConsistentWithDatabaseTests by @sisuresh in #4466
• Bucket entry counters and metrics by @ThomasBrady in #4436
• Update weight function to fix bias in nomination by @bboston7 in #4453
• Add 'phase 1' testnet settings that we need to apply after every reset. by @dmkozh in #4467
• Apply time benchmarking by @sisuresh in #4402
• tx queue update by @sisuresh in #4468
• Add SOROBAN_TEST_EXTRA_PROTOCOL for side-by-side testing by @graydon in #4439
• Fix compiler error when tests are disabled by @SirTyson in #4472
• Update Core to protocol 22. by @dmkozh in #4464
• Multiple rust libraries with submodules by @graydon in #4456
• use --all-targets on cargo tree by @graydon in #4474
• Added Ubuntu 24.04 clang-format-12 install instructions by @SirTyson in #4476
• Bump to latest end and update contract cost params for V22 by @sisuresh in #4475
• Try stamp files rather than group rules for sequencing by @graydon in #4478
• Bump env to version with wasmi 0.36.1 by @graydon in #4482
• Fix upgrade validation by @sisuresh in #4485
• Testutils bug(s) by @graydon in #4489
• Fix MSVS project. by @dmkozh in #4490
• Bump env to 22.0.0-rc2 by @sisuresh in #4494
• Update v22 cost types for rolling back wasmi change by @sisuresh in #4495
• JSON file for proposing phase5 network settings by @anupsdf in #4491

New Contributors

• @JFWooten4 made their first contribution in #4460

Full Changelog: v21.3.1...v22.0.0rc1

v22.0.0rc1

Release notes

This is the first Core release supporting protocol 22.

New features in protocol 22

• Constructor support in Soroban: https://github.com/stellar/stellar-protocol/blob/master/core/cap-0058.md.
• Soroban host functions for BLS12-381: https://github.com/stellar/stellar-protocol/blob/master/core/cap-0059.md.
• Update Soroban to use Wasmi register machine: https://github.com/stellar/stellar-protocol/blob/master/core/cap-0060.md.

What's Changed

• non-existent entries should not be metered by @ThomasBrady in #4428
• High performance getledgerentry by @SirTyson in #4350
• Enable background eviction by default & drop support for EXPERIMENTAL_BACKGROUND_EVICTION_SCAN by @SirTyson in #4416
• generalize support for multiple soroban hosts by @graydon in #4434
• Check error type by @sisuresh in #4438
• Fix test to not load unused setting by @sisuresh in #4440
• Visual Studio/MSVC build fixes by @dmkozh in #4443
• Soroban upgrades for simulation tests by @ThomasBrady in #4413
• Add support for Soroban constructors (CAP-58) by @dmkozh in #4442
• docs: add overlay intro and fix typos by @marta-lokhova in #4420
• bugfix: guard access to mNoOutboundCapacity by @marta-lokhova in #4458
• Windows fixes by @MonsieurNicolas in #4449
• initial commit: Jupyter notebook to help estimate network settings by @MonsieurNicolas in #4452
• Switch Soroban tests to always use closeLedger to apply txs. by @dmkozh in #4455
• Fix exception-safety in callbacks from Rust to C++ by @graydon in #4463
• Switch read-only LedgerTxn to BucketList snapshots by @marta-lokhova in #4431
• Cache BL snapshot for re-use by @marta-lokhova in #4465
• ✍🏿 Capitalize headers for clarity by @JFWooten4 in #4460
• Change default test backend to BucketListDB by @SirTyson in #4462
• Use TESTDB_IN_MEMORY_OFFERS in BucketListIsConsistentWithDatabaseTests by @sisuresh in #4466
• Bucket entry counters and metrics by @ThomasBrady in #4436
• Update weight function to fix bias in nomination by @bboston7 in #4453
• Add 'phase 1' testnet settings that we need to apply after every reset. by @dmkozh in #4467
• Apply time benchmarking by @sisuresh in #4402
• tx queue update by @sisuresh in #4468
• Add SOROBAN_TEST_EXTRA_PROTOCOL for side-by-side testing by @graydon in #4439
• Fix compiler error when tests are disabled by @SirTyson in #4472
• Update Core to protocol 22. by @dmkozh in #4464
• Multiple rust libraries with submodules by @graydon in #4456
• use --all-targets on cargo tree by @graydon in #4474
• Added Ubuntu 24.04 clang-format-12 install instructions by @SirTyson in #4476
• Bump to latest end and update contract cost params for V22 by @sisuresh in #4475
• Try stamp files rather than group rules for sequencing by @graydon in #4478
• Bump env to version with wasmi 0.36.1 by @graydon in #4482
• Fix upgrade validation by @sisuresh in #4485
• Testutils bug(s) by @graydon in #4489

New Contributors

• @JFWooten4 made their first contribution in #4460

Full Changelog: v21.3.1...v22.0.0rc1

v21.3.1

What's Changed

• Allow nodes to vote at genesis by @marta-lokhova in #4432. This change fixes an issue in v21.3.0 impacting private networks, and nodes starting from genesis without --wait-for-consensus flag.

Full Changelog: v21.3.0...v21.3.1

v21.3.0rc1

Stability improvements

• Add a way to get entry sizes in XDR query tool. by @dmkozh in #4325
• Rename debug info gathering script by @jacekn in #4381
• Write line identifying Catch2 test interface in --help output of test builds by @graydon in #4363
• Make outbound queue metrics more accurate by @marta-lokhova in #4386
• Cleanup outdated surge pricing logic. by @dmkozh in #4383
• Add redis-tools as a test-only docker dependency by @jayz22 in #4390
• Only test SCP driver with the current and prev protocol. by @dmkozh in #4400
• Stop removing the cargo directory in ci-build.sh by @sisuresh in #4406
• Harden survey script to various failures by @bboston7 in #4407
• Harden handling of tx size upgrades in herder and add tests by @marta-lokhova in #4405
• TransactionFrame Refactor by @SirTyson in #4307. This change makes TransactionFrame immutable.
• Fix prefetch tests by @SirTyson in #4410
• Fixed assert failure when Soroban tx was sumbitted pre p20 by @SirTyson in #4414
• Remove protocol-specific assert from TxSetUtils::getInvalidTxList by @marta-lokhova in #4417
• Remove usage of reduce in maxReadQuotaForKey, simplify accounting data structure by @ThomasBrady in #4419
• Fixed assert failure when banning txs by @SirTyson in #4422
• harden simulation tests by @marta-lokhova in #4423
• Ensure unique preimages during loadgen upgrade setup by @bboston7 in #4425
• Binary fuse filter by @SirTyson in #4389. This change will cause first restart after the upgrade to take a few minutes.

Breaking Changes

• Deprecate obsolete txfeehistory table by @marta-lokhova in #4385
• Mandate flow control in bytes by @bboston7 in #4353 drops support for ENABLE_FLOW_CONTROL_BYTES, as the feature is now required.

New Features

• Self-report drifting clock by @marta-lokhova in #4101

Full Changelog: v21.2.0...v21.3.0

v21.3.0

Stability improvements

• Add a way to get entry sizes in XDR query tool. by @dmkozh in #4325
• Rename debug info gathering script by @jacekn in #4381
• Write line identifying Catch2 test interface in --help output of test builds by @graydon in #4363
• Make outbound queue metrics more accurate by @marta-lokhova in #4386
• Cleanup outdated surge pricing logic. by @dmkozh in #4383
• Add redis-tools as a test-only docker dependency by @jayz22 in #4390
• Only test SCP driver with the current and prev protocol. by @dmkozh in #4400
• Stop removing the cargo directory in ci-build.sh by @sisuresh in #4406
• Harden survey script to various failures by @bboston7 in #4407
• Harden handling of tx size upgrades in herder and add tests by @marta-lokhova in #4405
• TransactionFrame Refactor by @SirTyson in #4307. This change makes TransactionFrame immutable.
• Fix prefetch tests by @SirTyson in #4410
• Fixed assert failure when Soroban tx was sumbitted pre p20 by @SirTyson in #4414
• Remove protocol-specific assert from TxSetUtils::getInvalidTxList by @marta-lokhova in #4417
• Remove usage of reduce in maxReadQuotaForKey, simplify accounting data structure by @ThomasBrady in #4419
• Fixed assert failure when banning txs by @SirTyson in #4422
• harden simulation tests by @marta-lokhova in #4423
• Ensure unique preimages during loadgen upgrade setup by @bboston7 in #4425
• Binary fuse filter by @SirTyson in #4389. This change will cause first restart after the upgrade to take a few minutes.

Breaking Changes

• Deprecate obsolete txfeehistory table by @marta-lokhova in #4385
• Mandate flow control in bytes by @bboston7 in #4353 drops support for ENABLE_FLOW_CONTROL_BYTES, as the feature is now required.

New Features

• Self-report drifting clock by @marta-lokhova in #4101

Full Changelog: v21.2.0...v21.3.0

v21.2.0

What's Changed

Stability Improvements

• Add merge_group to workflow file by @graydon in #4360
• Support building core with thread sanitizer by @marta-lokhova in #4337
• Rework github action caching by @graydon in #4367
• Remove the bors-auto-branch short circuit from ci-build.sh by @graydon in #4370
• Improve performance of dump-ledger by @MonsieurNicolas in #4361
• Misc fixes to the caching logic by @graydon in #4373
• Bucketlist db invariant by @SirTyson in #4369
• ApplyBucketWork at per-bucket level by @ThomasBrady in #4314
• Only run ci on push to real branches by @graydon in #4375
• Fail loadgen when pending accounts are found in available accounts list by @bboston7 in #4372
• Fixed EXPERIMENTAL_BUCKETLIST_DB_INDEX_PAGE_SIZE_EXPONENT by @SirTyson in #4378
• Update overlay survey script with lessons learned during testnet run by @bboston7 in #4358

New Features

• 3651 prefetch entries in soroban ops by @ThomasBrady in #4178
• Settings upgrades for increasing the maximum Soroban key size to 250 bytes by @dmkozh in #4371
• Add initial version of the debug info gathering script by @jacekn in #4352

Full Changelog: v21.1.0...v21.2.0