• An Intel or AMD x86 processor with two or more cores, at 1.6GHz or faster (2GHz or faster for a stake pool or relay)
• 24GB of RAM
• 150GB of free storage (250GB recommended for future growth)

• Linux 64-bit (Ubuntu 18.04 LTS, 20.04 LTS; Mint 19.3, 20; Debian 10.3)
• Windows 64-bit (8.1, 10, 11)
• MacOS 10.13, 10.14, 10.15, 11

• GHC 8.10.7/Cabal 3.8.1.0

• Docker image
• Configuration files

NOTE: Linux is showing a git revision of 0000000000000000000000000000000000000000 in --version because of a corruption issue in set-git-rev that only affects static musl` built binaries. This is expected, and if it concerns you, please build from source.

• Changing the selection now traces the entire SelectView (including the tiebreaker VRF)
• Ledger state query change: Replaced GetCommitteeState query with GetCommitteeMembersState.

• Prevent updating protocol version with PParamUpdate
• Slight performance improvements to native script handling:
  • Remove redundant script hash verification.
  • Short circuit "multisig" and "timelock" verification for RequireMOf as soon as necessary number of scripts have been validated.
• Check that the previous governance action of a specific type is either the very last action that has been enacted or is already in the current proposals set.
• Replace queryCommitteeState with more powerful queryCommitteeMembersState, which returns more information about committee members and supports filters based on credentials and statuses.
• Repurpose DRepPulser to encapsulate the Snapshots needed to run the EPOCH and RATIFY Rules. This has fixed some problem related to snapshots and behaviour at the epoch boundary.
• Add an optional anchor to committee member resignation certificate
• Prevent delegation to non-registered pools

• Added a 3673s timeout to chainsync's StIdle state.
• Added a 97s timeout to keepalive's StClient state.

NONE

New features:

• DRep retirement certificate
• build-raw now supports --proposal-file and --vote-file
• Add optional anchors to Votes
• drep metadata-hash command to calculate DRep metadata hashes
• action view command to inspect action files before including them in a tx body
• query stake-address-info now returns the current deposits for the staking credential
• Add optional anchor to CC cold key resignation certificate

Bug-fixes:

• The query drep-state and query drep-stake-distribution now accept zero or more DRep verification keys
• action create-protocol-parameters-update now allows proposals to modify conway era parameters
• Fix delegating to always no confidence default DRep
• Enable use of inline datums in Babbage era transactions

Breaking changes:

• Do not allow submitting transactions older than current node era
• Renamed create-new-committee into update-committee to accommodate to ledger terminology
• Move governance query commands to query command group

• Support for PlutusV3
• Support for PlutusV1
• Support for simple scripts in Conway era
• Support for DRep extended keys

• The PIR inliner is now more likely to inline constructor applications.
• The PIR optimiser now performs the case-of-case transformation.