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Imported from https://github.com/Synthetixio/synthetix/releases

Regor (v2.43.0)

Published: Apr 29, 2021

Codebase: v2.43.0

https://blog.synthetix.io/the-regor-release/

SIP 115: Add sMSFT equity synth SIP 128: Add sCOIN equity synth

Alnilam (v2.42.0)

Published: Apr 22, 2021

Codebase: v2.42.0

https://blog.synthetix.io/the-alnilam-release/

Miaplacidus (v2.41.0)

Published: Mar 24, 2021

Codebase: v2.41.0

  • SIP-113 Re-enable sKRW (Korean Won)

Elnath (v2.39.0)

Published: Feb 11, 2021

Codebase: v2.39.0

Bellatrix (v2.38.0)

Published: Feb 4, 2021

Codebase: v2.38.0

https://blog.synthetix.io/the-bellatrix-release/

Gacrux (v2.37.0)

Published: Jan 17, 2021

Codebase: v2.37.0

Castor (v2.36.1)

Published: Jan 15, 2021

Codebase: v2.36.1

https://blog.synthetix.io/the-castor-release/

  • SIP-60: New Escrow Contract & Migration
  • SIP-102 Support SNX on L2 with Optimism
  • SIP-105 Multi-collateral Liquidation Bug Fix

Shaula (v2.35.2)

Published: Dec 24, 2020

Codebase: v2.35.2

https://blog.synthetix.io/the-shaula-release/

  • SIP-97: Multi-collateral loans — This SIP allows users to borrow Synths against ETH and ERC20 collateral. Initially, the system will support borrowing sUSD or sETH against ETH, and sUSD or sBTC against renBTC.
  • SIP-100: Resolver and cache improvements — Improves the ‘AddressResolver’ to improve protocol upgrades, reduce gas of deployments and further decentralization.
  • SIP-103: sUSD shorts — This SIP allows users to short Synths against sUSD. This mechanism provides an alternative to iSynths for users seeking inverse price exposure. While these positions require collateral, they return the sUSD proceeds of the sale to the shorter, which can then be deployed productively throughout DeFi.

Adhara (v2.34.0)

Published: Dec 1, 2020

Codebase: v2.34.0

SIP-98 Re-implement double exchange fee rate on swing trades

Regulus (v2.32.2)

Published: Nov 13, 2020

Codebase: v2.32.2

https://blog.synthetix.io/the-regulus-release/

  • SIP-94 Virtual Synth Fix to Ensure Settlement Is Connected

Mimosa (v2.31.1)

Published: Nov 12, 2020

Codebase: v2.31.1

https://blog.synthetix.io/the-mimosa-release/

  • SIP-89 Virtual Synths
  • SIP-91 Debt Cache Contract
  • SIP-92 Historical iSynths Pricing Tracks When Last Frozen

Deneb (v2.30.0)

Published: Oct 8, 2020

Codebase: v2.30.0

https://blog.synthetix.io/the-deneb-release

  • SIP-83: Total Issued Synths (Debt pool) Snapshots
  • SIP-88: ExchangeRates patch - Chainlink aggregator V2V3
  • SCCP-51: Update sDEFI index
  • Resume synths paused previously by SIP-84

Fomalhaut (v2.28.4)

Published: Sep 24, 2020

Codebase: v2.28.4

https://blog.synthetix.io/the-fomalhaut-release/

  • SIP-77: Staking rewards contract
  • SIP-85: EtherCollateral for sUSD Loans
  • SIP-86: SIP 86: ExchangeRates Chainlink Aggregator V2V3
  • SIP-87: Add iETH incentive to RewardsDistribution

Pollux (v2.27.2)

Published: Sep 1, 2020

Codebase: v2.27.2

https://blog.synthetix.io/the-pollux-release/

  • SIP-36: Chainlink Phase 2
  • SIP-63: Trading and volume incentives
  • SIP-64: Flexible contract storage
  • SIP-75: Freezing iSynths with public function with SNX reward
  • SIP-76: Chainlink warning flags integration
  • SIP-78: Reset iSynth does not trigger circuit breaker from SIP-65
  • SIP-84: Pause Synths Below Open Interest Threshold
  • SCCP-43: As part of the Pollux deployment and transition to Chainlink Oracles a number of SCCP controlled variables need to be updated to improve trading UX and reduce front-running attacks.

Spica (v2.26.2)

Published: Jul 30, 2020

Codebase: v2.26.2

https://blog.synthetix.io/the-spica-release/

  • SIP-54 : Limit Orders
  • SIP-65 : Decentralized circuit breaker
  • SIP-69 : New Index Synths
  • SIP-58 : Emit individual Reclaim and Rebate events
  • SIP-44 : Settlement Improvements — Minor modifications to the settlement process for exchange rates deployments.
  • SCCP-27 : Ether collateral second trial — Now that the first Ether collateral trial is complete, we will be launching a second trial that incorporates the collateralization ratio update from 150% to 125%.

Antares (v2.25.0)

Published: Jul 20, 2020

Codebase: v2.25.0

https://blog.synthetix.io/the-antares-release/

Implements most of SIP-71:

  • Allow market creators to cancel a market if no bids have been placed on it yet
  • Allow market creators to disable bid withdrawals at market creation
  • Emit bid events for the initial capital at market creation
  • Fix a bug that prevents creators from exercising their options before expiry under certain circumstances

Aldebaran (v2.24.0)

Published: Jul 1, 2020

Codebase: v2.24.0

  • SIP-66 Reduce gas of SNX transfers for non-stakers

Acrux (v2.23.3)

Published: Jun 30, 2020

Codebase: v2.23.3

https://blog.synthetix.io/the-acrux-release/

  • SIP-48 Allow read views while rates are stale
  • SIP-53 Binary options

Altair (v2.22.4)

Published: Jun 5, 2020

Codebase: v2.22.4

https://blog.synthetix.io/the-altair-release/

Hadar (v2.21.6)

Published: Mar 31, 2020

Codebase: v2.21.6

https://blog.synthetix.io/the-hadar-release/

  • SIP-9 One week claim window

  • SIP-10 Improved Delegation Powers

  • SIP-21 Deprecate swing fee

  • SIP-44 System & Synth Disabling

  • SIP-46 Address resolver gas optimizations

  • SIP-47 Prevent empty exchanges

Betelgeuse (v2.20.0)

Published: Feb 28, 2020

Codebase: v2.20.0

https://blog.synthetix.io/the-betelgeuse-release/

Sirius (v2.10.5)

Published: Sep 26, 2019

Codebase: v2.10.5

https://blog.synthetix.io/release-scheduled-thursday-september-26/

  • SIP 16: Synthetix upgrades currently take longer than needed as the owner account makes up to 60 calls to configure the system. Most of these calls are setSynthetix and setFeePool on all of the Synths. We propose to point the Synths to the Synthetix Proxy and FeePool Proxy. This would reduce the amount of time the system is offline. Making upgrades a lot faster, cheaper (gas) and minimize the impact on users with reduced downtime.
  • SIP 17: This update will upgrade the currencyKeys from Bytes4 to Bytes32. This will enable Synthetix to create new Synths with symbols longer than 4 characters. e.g. sATOM, sDEFI, which is not currently possible with currencyKeys type defined as Bytes4.
  • SIP 18: This will recover the $2.9k sUSD that is currently unclaimable by minters in the SNX fee address. This sUSD is from the period in which there was a transfer fee for sending sUSD.
  • SIP 19: The Synthetix contracts still have transfer fees written into them, from before we disabled transfer fees in February 2018. Removing that code will optimise reclaim bytecode size required for new features.