Fulu

• Add execution_requests to fulu.GetPayloadResponse (#4389)
• Remove peer sampling in Fulu (#4393)
• Serve DataColumnSidecarsByRoot for finalized epochs (#4394)
• Use get_blob_parameters in gossip block validation (#4401)
• Add some clarifications around new ENR changes (#4406)
• Clarify peering expectations when nfd values are different (#4407)
• Convert DAS providers section to supernodes section (#4415)

Testing

• Add fork choice compliance test generator (#3831)
• Add more proposer lookahead tests (#4375)
• Add fork version to compute fork digest test cases (#4376)
• Add test for proposer lookahead excluding exited validators (#4380)
• Fix yields in new proposer lookahead test (#4386)
• Add fork choice tests for PeerDAS (#4391)
• Fix test_effective_decrease_balance_updates_lookahead reftest (#4395)
• Correct the docstrings for process_execution_payload tests with blobs (#4408)
• Remove unnecessary config overrides in test (#4410)
• Test proposer lookahead initialization uses active validator set at fork (#4413)
• Remove blobs/proofs from new PeerDAS forkchoice tests (#4421)

Other

• Do not wrap long lines in config.yaml files (#4379)
• Bump the actions group with 4 updates (#4385)
• Combine helpers into compute_time_at_slot (#4388)
• Replace ast.unparse() with custom parsing (#4387)
• Add jtraglia's spec viewer to resource list (#4392)
• Remove dead attestation generation code (#4396)
• Add nightly workflow to deal with stale issues/PRs (#4403)
• Bump the actions group with 2 updates (#4405)
• Add support for automated releases (#4409)
• Fix formatting for Capella preset (#4411)
• Update release documentation (#4416)
• Run mdformat on all markdown files (#4417)
• Fix sanity test steps in release action (#4418)
• In the release action, set timeout to 24 hours (#4423)
• In the release action, disable sanity checks & remove sudo (#4425)
• In the release action, add back sudo (#4428)

v1.6.0-alpha.2 -- Arcanine -- is an alpha release for the upcoming Fulu upgrade.

PR showing full diff can be found here: #4367

Fulu

• Modify fork digest to distinguish BPO forks + add entry to ENR #4354
• EIP-7917: Refactor return types from List to Vector #4361
• Define requirements for the blob schedule #4370
• Suggest using getPayloadV5 to get blobs/proofs #4371
• Update CGC before Fulu #4373
• Introduce Status v2 with earliest_available_slot #4374

Testing

• Increase mainnet tests timeout to 12 hours #4362
• Fix epoch processing tests for proposer lookahead #4364
• Alias new test to blocks handler #4365
• Detect errors in reference test generator action #4366

Other

• Delete unnecessary container comments #4358
• Run linter on code in markdown files #4359
• Make several fixes in setup.py #4360
• Use python 3.13 in CI actions #4363
• Bump version to v1.6.0-alpha.2 #4368
• Bump the actions group with 3 updates #4372

v1.6.0-alpha.1 -- Ninetales -- is an alpha release for the upcoming Fulu upgrade.

PR showing full diff can be found here: #4346

Fulu

• Add EIP-7917: Deterministic proposer lookahead #4190
• Remove Deneb/Electra from blob schedule and default to Electra limit #4341
• Set blob schedule to an empty list #4342
• Make validator custody increase only and backfill optional #4357

Testing

• Allow custom CLI argument parser in test generator #4339
• Add repository input to reftest generator action #4356

Other

• Refactor pyspec generator code #4330
• Bump the actions group with 3 updates #4334
• Run linting on pysetup directory #4335
• Delete unnecessary eth2spec/eip7732/__init__.py file #4336
• Bump the actions group with 4 updates #4338
• Fix handling of multiple Python definitions in code blocks #4344
• Update minimum python version to 3.10 #4345
• Run linter on setup.py #4348
• Update default shell to bail on error #4349
• Replace black/pylint/isort with ruff #4350
• Bump the actions group with 4 updates #4355

v1.6.0-alpha.0 -- Charmander -- is an alpha release for the upcoming Fulu upgrade.

PR showing full diff can be found here: #4316

Fulu

• Clarification on custody sampling #4251
• Introduce blob schedule #4277
• Fix typos in blob configuration comments for fulu presets #4311
• Clarify node behavior when validator custody changes #4320
• State that reconstructed sidecars which are not custodied may be deleted #4332

Testing

• Add full epoch processing tests #4155
• Refactor bls generator #4304
• Improve generator UX #4309
• Refactor gen_runner #4310
• Improve run_get_committee_assignment #4315
• Simplify reference test generators #4317
• Generate reference tests for EIP7732 & EIP7805 #4319
• Fix phase run decorator to skip EIP-7732 as intended #4326
• Bind inputs in ssz_generic reftests #4333

Other

• Bump the actions group with 2 updates #4312
• Enforce 80-character line limit in all markdown files #4321
• Fix link to das-core in fulu validator specs #4324
• Use latest version of uv when creating the venv #4325
• Do import sorting with isort #4327
• Update isort to order_by_type = false #4328

v1.5.0 -- Pikachu -- is the mainnet release for the Electra upgrade that went live on May 7, 2025.

PR showing full diff can be found here: #4298

Electra

• Add various tests cases for Electra #4265
• Fix bug in Electra withdrawals processing #4281
• Mark Electra as stable #4285
• Make *_REQUESTS_PER_PAYLOAD the same for mainnet/minimal #4291
• Update ELECTRA_FORK_EPOCH in fork.md #4295

Fulu

• Allow skipping verification for blobs from EL #4262
• Improve DataColumnSidecarsByRoot request #4284
• Deprecate BlobSidecarsByRangeRange/Root in Fulu #4286
• Remove unnecessary sort in compute_columns_for_custody_group #4289

EIP-7732 (ePBS)

• Fix KZG commitment inclusion proof depth #4264

EIP-7805 (FOCIL)

• Use MAX_TRANSACTIONS_PER_PAYLOAD for InclusionList transactions size #4220
• Update config/preset files #4268
• Make IL committee domain a constant #4276

Testing

• Disable parallelism with make test if a test name is specified #4270
• Add workflow to run nightly mainnet tests #4280
• Add ability to run generators for specific tests #4288
• Add two new custody group tests #4290
• Remove deprecated testing infrastructure #4294
• Refactor kzg_7594 generator #4296
• Refactor kzg_4844 generator #4300
• Clean up generator runner #4301
• Fix two mistakes when refactoring the kzg_4844 generator #4302

Other

• Cleanup presets and configs #4256
• Remove unused is_previous_epoch_justified function #4269
• Simplify specification tables in main readme #4271
• Do a major clean up of the main readme #4272
• Bump the actions group with 2 updates #4273
• Fix a couple broken links #4279
• Bump the actions group with 3 updates #4282
• Bump setuptools from 79.0.0 to 80.0.0 in the actions group #4292
• Bump actions/setup-python from 5.5.0 to 5.6.0 in the actions group #4293
• Ensure presets/configs for yaml/spec match #4297
• Bump the actions group with 2 updates #4299

v1.5.0-beta.5 -- Plusle -- is a beta release for the upcoming Electra upgrade.

PR showing full diff can be found here: #4261

Electra

• Update weak subjectivity period computation #4179
• Clean up electra presets #4254
• Schedule electra fork epoch for mainnet #4258

EIP-7805 (FOCIL)

• Add EIP-7805 fork version/epoch to the configs #4250

Testing

• Add test that affects the proposer selection #4230
• Add two consolidation request processing edge case tests #4246
• Fix the full consolidation queue test #4248
• Add test for withdrawal requests when pending queue is full #4252
• Add consolidation test with same source and target #4259

Other

• Close outdated issues, part 1 #4231
• Bump the actions group with 3 updates #4241
• Bump actions/setup-python from 5.4.0 to 5.5.0 in the actions group #4242
• Use mdformat for markdown formatting #4244
• Use black for linting tests directory #4245
• Bump the actions group with 3 updates #4249

v1.5.0-beta.4 -- Zapdos -- is a beta release for the upcoming Electra upgrade.

PR showing full diff can be found here: #4235

Electra

• Update fork trigger sections #4208
• Remove outdated paragraph about ExecutionPayloadV4 #4221

Fulu

• Create honest validator specifications #4135
• Add Distributed Blob Publishing to networking specifications #4183
• Update BlobsBundle #4187
• Clarify validator custody updates #4188
• Use finalized state for validator custody #4211
• Use effective balances to determine column custody #4218
• Add missing section headers in specifications #4223

EIP-7732 (ePBS)

• Run existing spec tests with EIP-7732 #3854

EIP-7805 (FOCIL)

• Add fork specifications for EIP-7805 #4191

Testing

• Test blob_kzg_commitments_merkle_proof with different blob counts #4161
• Fix a small bug in a pending consolidation test #4217
• Round down value when setting validator's effective balance #4229
• Add full_pending_withdrawals_but_first_skipped_* tests #4237
• Add multiple_pending_deposits_same_pubkey_different_signature test #4238
• Add withdrawal_and_consolidation_effective_balance_updates test #4239

Other

• Add weekly dependabot check for python dependencies #4110
• Update canonical network names for Hoodi #4166
• Improve readme and remove docker on tests #4178
• Remove CircleCI checks #4192
• Pin GitHub actions versions #4193
• Bump the actions group with 3 updates #4194
• Bump mkdocs-awesome-pages-plugin from 2.8.0 to 2.10.1 #4196
• Bump pytest from 8.3.4 to 8.3.5 #4197
• Bump mkdocs from 1.4.2 to 1.6.1 #4198
• Bump trie from 3.0.1 to 3.1.0 #4201
• Bump py-ecc from 6.0.0 to 7.0.1 #4202
• Group all dependabot python upgrades #4204
• Bump the actions group with 11 updates #4207
• Fix some typos in comments #4209
• Use consistent note style #4224
• Replace some instances of "extended" with "modified" #4225

v1.5.0-beta.3 -- Yamper -- is a beta release for the upcoming Electra upgrade.

PR showing full diff can be found here: #4163

Fulu

• Add back compute_cells function #4128

EIP-7441 (Whisk)

• Rename whisk to eip7441 #4131

EIP-7732 (ePBS)

• Add ExecutionPayloadEnvelopesByRangeV1 RPC method #4120

EIP-7805 (FOCIL)

• Add initial specifications #4003
• Change Store.inclusion_list from List to Set #4165

Networking

• Add clarifications regarding SSZ-snappy length prefix #4129

Testing, repo, etc

• Cover signature_slot tiebreaker in is_better_update #4124
• Add light client sync test for forced update before update timeout #4127
• Do not double build pyspec #4130
• Move deprecated specs to new dir & fix typos #4143
• Remove python version from circleci cache key #4134
• Fix broken link in polynomial-commitments-sampling.md #4140
• Simplify build system for computed constants #4152
• Fix list presentation in rendered specifications #4156
• Fix some testgen issues related to computed constants #4157
• Add consolidation request test with 0x00 source credentials #4162

v1.5.0-beta.2 -- Oricorio -- is a beta release for the upcoming Electra upgrade.

PR showing full diff can be found here: #4119

Electra

• In process_registry_updates, change two ifs to elifs #4104
• Add updated get_eth1_vote function #4106

Fulu

• Basic validator custody #3871

Testing, repo, etc

• Add test cases for partially withdrawable validator scenarios #4094
• Add new process pending deposits test #4101
• Add fulu fork tests #4103
• Add two block tests with withdrawal and execution request #4105
• Enable more fulu test generators #4108
• Add a new consolidation test & two new pending deposit tests #4109
• Remove outdated specs from readme #4111
• Add test verifying validator creation on two forks #4112
• Add tests for mock NoopExecutionEngine API #4114
• Do not checkout tests repo in nightly tests action #4115
• Increase test vector generation action timeout #4117
• Ignore --disable-bls for test_process_pending_deposits_multiple_for_new_validator #4121
• Improve test coverage for get_committee_assignment #4122
• Add python version to circleci venv key #4126

v1.5.0-beta.1 -- Manectric -- is a beta release for the upcoming Electra upgrade.

PR showing full diff can be found here: #4097

Electra

• Simplify/optimize process_registry_updates #4081
• Document Electra fork-digest for BeaconBlocksByRange/Root v2 #4083

Fulu

• Update Fulu configs to include MIN_EPOCHS_FOR_DATA_COLUMN_SIDECARS_REQUESTS #4095

Testing, repo, etc

• Add document with release instructions #4065
• Fix various nits in markdown files #4082
• Fix order of SidecarsByRange/Root messages #4084
• Add test with multiple deposit requests with same pubkey but different withdrawal credentials #4085
• Add more execution payload processing tests #4087
• Add test cases with blocks containing several withdrawal requests #4090
• Pin codespell version #4092
• Move dependencies to pyproject.toml #4093
• Replace pip with uv pip #4100