[2.4.3] - 2022-02-02

Fixed

• Peer dependency version for mathjs (@PaulRBerg)

[2.4.2] - 2022-02-02

Changed

• Upgrade to mathjs v10.1.1 (@PaulRBerg)

Fixed

• Fix typo in comment in sqrt (#67 (@transmissions11)

[2.4.1] - 2021-10-27

Changed

• Upgrade to @ethersproject/bignumber v5.5.0 (@PaulRBerg)

Fixed

• Set peer dependencies (@PaulRBerg)

[2.4.0] - 2021-10-20

Added

• @ethersproject/bignumber, decimal.js, evm-bn, and mathjs as normal deps (@PaulRBerg)
• Ship JavaScript source maps with the npm package (@PaulRBerg)

Changed

• Americanize spellings in NatSpec comments (@PaulRBerg)
• Move everything from the prb-math.js package to prb-math (@PaulRBerg)
• Polish NatSpec comments in avg function (@PaulRBerg)
• Use underscores in number literals (@PaulRBerg)

Fixed

• Fix bug in the powu function of the PRBMathSD59x18 contract, which caused the result to be positive even if the base was negative (@PaulRBerg)
• Fix minor bug in the avg function of the PRBMathSD59x18 contract, which rounded down the result instead of up when the intermediary sum was negative (@PaulRBerg)

[2.3.0] - 2021-09-18

Added

• The CHANGELOG file in the npm package bundle (@PaulRBerg)

Changed

• License from "WTFPL" to "Unlicense" (@PaulRBerg)
• Polish README (@PaulRBerg)

Fixed

• Typos in comments (@PaulRBerg)

Removed

• Remove stale "resolutions" field in package.json (@PaulRBerg)

[2.2.0] - 2021-06-27

Changed

• Add contract name prefix to custom errors (@PaulRBerg)

Removed

• Remove @param tags in custom errors' NatSpec (@PaulRBerg)

[2.1.0] - 2021-06-27

Changed

• Define the upper limit as MAX_UD60x18 / SCALE in the sqrt function (@PaulRBerg)
• Define xValue var to avoid reading x.value multiple times (@PaulRBerg)
• Move SCALE > prod1 check at the top of the mulDivFixedPoint function (@PaulRBerg)
• Refer to add function operands as summands (@PaulRBerg)
• Refer to sub function operands as minuend and subtrahend (@PaulRBerg)
• Rename rUnsigned var to rAbs (@PaulRBerg)
• Set minimum compiler pragma to >=0.8.4 (@PaulRBerg)
• Use MIN_SD59x18 instead of type(int256).min where appropriate (@PaulRBerg)

Added

• Add Solidity v0.8.4 custom errors (@PaulRBerg)

Removed

• Remove stale hardhat/console.sol import (@PaulRBerg)
• Remove stale caveat in the NatSpec for sqrt (@PaulRBerg)

[2.0.1] - 2021-06-16

Changed

• Mention the new typed flavors in the README (@PaulRBerg)

Fixed

• Code snippet for the UD60x18Typed consumer in the README (@PaulRBerg)
• English typos in NatSpec comments (#40) (@ggviana)
• Minor bug in log10 in PRBMathUD60x18Typed.sol which made the result inaccurate when the input was a multiple of 10 (@PaulRBerg)

[2.0.0] - 2021-06-14

Changed

• Breaking: Rename PRBMathCommon.sol to PRBMath.sol (@PaulRBerg)
• Increase the accuracy of exp2 by using the 192.64-bit format instead of 128.128-bit (@PaulRBerg)
• Set named parameter instead of returning result in pow functions (@PaulRBerg)
• Update gas estimates for exp and exp2 (@PaulRBerg)

Added

• Add add and sub functions in the typed libraries (@PaulRBerg)
• Add types flavors of the library: PRBMathSD59x18Typed.sol and PRBMathUD60x18Typed.sol (@PaulRBerg)
• Document gas estimates for fromInt, fromUint, pow, toInt and toUInt (@PaulRBerg)
• Structs PRBMath.SD59x18 and PRBMath.UD60x18, simple wrappers to indicate that the variables are fixed-point numbers (@PaulRBerg)

Fixed

• Bug in log10 which made the result incorrect when the input was not a multiple of 10 (@PaulRBerg)
• Typos in NatSpec comments (@PaulRBerg)

[1.1.0] - 2021-05-07

This release was yanked because it was accidentally published with the wrong version number.

Changed

• Rename the previous pow function to powu (@PaulRBerg)
• Speed up exp2 by simplifying the integer part calculations (@PaulRBerg)
• Use the fixed-point format in NatSpec comments (@PaulRBerg)

Added

• Add new convertor functions fromInt and toInt in PRBMathSD59x18.sol (@PaulRBerg)
• Add new convertor functions fromUint and toUint in PRBMathUD60x18.sol (@PaulRBerg)
• Add new function mulDivSigned in PRBMathCommon.sol (@PaulRBerg)
• Add new function pow in PRBMathSD59x18.sol and PRBMathUD60x18.sol (@PaulRBerg)

Fixed

• Fix minor typos in NatSpec comments (@PaulRBerg)