Skip to content

feat(L1): add ProtocolVersions upgrade schedule contract#353

Open
PelleKrab wants to merge 11 commits into
mainfrom
dynamic-hardfork-protocol-id
Open

feat(L1): add ProtocolVersions upgrade schedule contract#353
PelleKrab wants to merge 11 commits into
mainfrom
dynamic-hardfork-protocol-id

Conversation

@PelleKrab

Copy link
Copy Markdown

Summary

Adds ProtocolVersions, a Security Council-controlled L1 contract that
maintains an ordered registry of L2 upgrade activation timestamps and
commits to a reproducible scheduleId hash chain.

  • Registry: upgrades are registered by name (e.g. "canyon") with an
    owner-assigned protocol version; timestamps are set/cleared separately
    by the owner
  • chainTeam role: a secondary address (appointed/revocable by the owner)
    that can only push already-scheduled activations further into the future
    via delayTimestamp, it cannot register, clear, or pull timestamps earlier
  • scheduleId: a cumulative keccak256 chain over (l2ChainId, address, ordered keys, current timestamps).
  • getSchedule: single eth_call view returning the full ordered schedule
    (name, timestamp, protocol version, per-entry hash) for off-chain consumers

Test plan

  • forge test --match-path test/L1/ProtocolVersions.t.sol passes
  • Confirm scheduleId reproducibility manually: compute chain from
    (l2ChainId, address, ordered keys, timestamps) and compare to
    scheduleId() return value
  • Verify delayTimestamp cannot be used to pull an activation earlier
    or to schedule a fresh one
  • Verify setTimestamp(id, 0) correctly clears a pending timestamp and
    reverts the scheduleId to the post-registration value

PelleKrab and others added 5 commits June 25, 2026 18:10
Add the Security Council-controlled upgrade activation schedule contract,
its interface, and tests. Maintains an ordered registry of upgrades and their
L2 activation timestamps, committed via scheduleId.

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
…o conventions

Replace the history-dependent rolling hash with a per-upgrade cumulative hash
chain reproducible from (l2ChainId, address, ordered keys, current timestamps).
When a timestamp changes, only the affected suffix is recomputed (O(n-j) bubble-up)
rather than hashing the full state on every mutation.

- Add MIN_NOTICE (1 hour) guard on setTimestamp; expose it in the interface
- Require non-zero protocolVersion; use _protocolVersions as existence sentinel,
  removing the separate _upgradeIndex mapping
- Move all errors and events into IProtocolVersions; add MIN_NOTICE to interface
- Replace assembly in _keyFromUpgradeId with bytes32(raw) Solidity cast
- Rename constructor params to leading-underscore convention
- Restructure test file into grouped contracts with snake_case naming,
  external visibility, and @notice on each test function per repo style

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
Returns the full ordered upgrade schedule in a single eth_call — name,
activation timestamp, protocol version, and cumulative scheduleId per entry.
Name is recovered from the bytes32 key at read time via _nameFromKey,
avoiding a separate storage mapping.

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
Replace the per-call keccak256(abi.encode(l2ChainId, address(this)))
in _refreshScheduleId with a cached immutable _seed set once in the
constructor, saving a hash + encode on every schedule mutation.

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
@PelleKrab PelleKrab requested a review from jackchuma June 26, 2026 01:21
@cb-heimdall

Copy link
Copy Markdown
Collaborator

🟡 Heimdall Review Status

Requirement Status More Info
Reviews 🟡 0/1
Denominator calculation
Show calculation
1 if user is bot 0
1 if user is external 0
2 if repo is sensitive 0
From .codeflow.yml 1
Additional review requirements
Show calculation
Max 0
0
From CODEOWNERS 0
Global minimum 0
Max 1
1
1 if commit is unverified 1
Sum 2

Reflects bytecode change from caching hash chain seed as immutable.

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

@jackchuma jackchuma left a comment

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I think this is a great start, however ProtocolVersions seems a bit over-engineered. How simple can we make it? We really only need:

  • mapping of arbitrary upgradeId bytes32 => upgrade timestamp
  • We could probably also include another mapping to represent the upgrade schedule as a linked list instead of an array which will simplify lookups (gnosis safes are implemented this way)
  • mapping of upgradeId bytes32 => scheduleId bytes32

Comment thread src/L1/ProtocolVersions.sol Outdated
Comment thread src/L1/ProtocolVersions.sol Outdated
Comment thread src/L1/ProtocolVersions.sol Outdated
Comment thread src/L1/ProtocolVersions.sol Outdated
Comment thread src/L1/ProtocolVersions.sol Outdated
Comment thread src/L1/ProtocolVersions.sol Outdated
Comment thread interfaces/L1/IProtocolVersions.sol Outdated
Comment thread src/L1/ProtocolVersions.sol Outdated
Comment thread src/L1/ProtocolVersions.sol Outdated
Comment thread src/L1/ProtocolVersions.sol Outdated
PelleKrab and others added 3 commits July 6, 2026 12:54
…s control

- Replace Ownable with ProxyAdminOwnedBase; drop explicit _owner constructor
  param and ProtocolVersions_ZeroOwner error
- Replace per-upgrade protocolVersion mapping with a single latestProtocolVersion
  uint256 updated on each registerUpgrade call
- Remove redundant storage vars: lastUpdatedAtBlock, l2ChainId immutable,
  _scheduleId (scheduleId() now reads the tip of _upgradeScheduleId directly)
- Remove redundant view functions: upgradeCount, upgradeIdAt, upgradeIds,
  getProtocolVersion (getSchedule() covers all registry reads)
- Inline _registerUpgrade into registerUpgrade and _applyTimestamp into
  setTimestamp; inline onlyChainTeam guard into delayTimestamp
- Drop ScheduleIdUpdated old-scheduleId param; enforce MIN_NOTICE in delayTimestamp

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
…y pattern

Replace the string-based upgrade registry (bytes32 key from packed upgradeId)
with a purely numeric scheme: each upgrade gets an ascending uint256 id equal
to its registration index. Human-readable names are kept off-chain; the id is
permanent and stable because the registry is strictly append-only.

Convert the constructor to an initializer so the contract can be deployed
behind an OP proxy. _seed is now stored (not immutable) so it can be set
inside initialize() against the proxy's address(this), binding the schedule
commitment to the proxy address that callers interact with.

Replace the mapping-based storage (_registered, _timestamps, _upgradeScheduleId
keyed by bytes32) with parallel arrays indexed by id, simplifying the hash
chain and eliminating the three-mapping structure. Drop getTimestamp(string)
and the duplicate-registration guard; add setLatestProtocolVersion() so the
informational field can be updated independently of registrations.

Add LatestProtocolVersionUpdated and ScheduleIdUpdated events; update the
interface to inherit IProxyAdminOwnedBase and IReinitializableBase.

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
Seven findings from a multi-angle review; fixes applied:

* emit LatestProtocolVersionUpdated in registerUpgrade — previously only
  setLatestProtocolVersion fired the event, so indexers missed every version
  bump that came through registration.

* Guard scheduleId() before initialization — returns bytes32(0) while _seed
  is unset, which could be picked up as a valid schedule commitment; now
  reverts with ProtocolVersions_NotInitialized.

* Dedicate ProtocolVersions_InsufficientNotice for setTimestamp — the MIN_NOTICE
  check in setTimestamp reused DelayMustBeLater with current=0 as the floor,
  which was misleading; a new error carries only the offending timestamp.

* Split delayTimestamp compound condition — the combined || condition reported
  current as the floor even when only the MIN_NOTICE leg fired; each constraint
  now reverts independently with the correct floor value.

* Extract _setTimestamp internal — setTimestamp and delayTimestamp duplicated
  the activation-already-passed check and the write+emit+refresh triple;
  _setTimestamp holds those shared invariants and each public function keeps
  only its distinct preconditions.

* Drop redundant zero-write in registerUpgrade — push(bytes32(0)) wrote zero
  to a slot that _refreshScheduleId immediately overwrites; replaced with
  push() (no argument) to save one SSTORE.

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
@PelleKrab PelleKrab force-pushed the dynamic-hardfork-protocol-id branch from 3405a31 to 358db8c Compare July 6, 2026 23:07
…elper, init guard

Rename latestProtocolVersion → minimumProtocolVersion throughout (state variable,
event, setter, interface, tests). The field represents the minimum version nodes
must run, not an informational latest; the old name implied recommendation rather
than a floor.

Remove the protocolVersion parameter from registerUpgrade. Upgrade registration is
purely a scheduling concern (assign id, extend hash chain); the minimum version is
set independently via setMinimumProtocolVersion. Drops the InvalidProtocolVersion
check from registerUpgrade and removes the protocolVersion field from the
UpgradeRegistered event.

Extract _writeTimestamp(id, newTs) as the shared write helper for setTimestamp and
delayTimestamp. Each public function owns its complete validation sequence;
_writeTimestamp is a pure write (store + emit TimestampSet + refreshScheduleId).
Eliminates the mixed-responsibility _setTimestamp that owned some validation but
not all, which caused the ActivationAlreadyPassed check to appear in two places.

Guard registerUpgrade against pre-initialization calls. _seed is zero between
upgradeTo and initialize; any registerUpgrade call in that window would compute
hash chain links from a zero seed, permanently desynchronizing scheduleId from its
reproducible derivation (l2ChainId, address(this)). Revert with NotInitialized
when _seed == 0, consistent with the existing guard in scheduleId().

Regenerate ABI, storage layout, and semver-lock snapshots.

Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
@PelleKrab PelleKrab force-pushed the dynamic-hardfork-protocol-id branch from 358db8c to c034032 Compare July 6, 2026 23:17
Co-authored-by: Codex <codex-noreply@coinbase.com>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants