Pact 4.11.0

Features

• Support for verifier plugins (#1324,#1336)
• Support for hyperlane-message-id (#1335)
• Support for decoding a hyperlane TokenMessage (#1344)

Bugfixes

• Fix bug in enforce-pact-version parser (#1334)
• Fix pact CLI usage output to use correct naming (#1331)
• Fix step for defpacts in typechecker (#1333)

Misc

• List-modules moved to local-only (#1326)
• Update pact server typo (#1328)
• Deprecate readthedocs (#1341)

Pact 4.10

4.10.0

Features

• Support webauthn in signer/usersig and keyset formats (#1318)
• New poseidon-hack-a-chain native for the "Poseidon" hashing function (#1313)

Bugfixes

• Gas adjustment for concat (#1317)
• Fix formal verification support for str-to-int (#1304)

Misc

• Vendor webauthn dependency

Pact 4.9.0

Pact 4.9.0

Bugfixes

• Pact value infos fixed (#1287)

Features

• Webauthn support (#1193)

Pact 4.8

4.8

Bugfixes

• Fix name resolution within module redeploy (#1235)
• Fixed issue with the hash of cap guards, hash native and principals (#1273) (#1278)
• Fixed error message for calling a non-function value (#1268)

Eval

• Tweaked the gas of concat (#1269), reverse and format (#1271)
• Allow computation on integers less than 10^80 without gas penalty (#1272)

Internal changes

• More granular gas units (#1245)
• Remove GHCJS support (#1280)
• GHC 9.6+ version support (#1242)
• Package docs in nix flake (#1258)
• Vendor sources of prettyprinter-1.6.0 (#1263)
• Use MTL 2.3+ (#1261)
• replace cryptonite by crypton (#1240)

Formal Verification

• Support lambdas in static typechecker (#1232)
• Fix swapped type assignment in fold symeval (#1253)

Other

• Improve modref docs (#1256)

Thanks to @thomashoneyman for the contribution!

Pact 4.7.1

4.7.1

This marks the 4.7.1 release of the Pact language.

Eval

• Add feature flag FlagDisableRuntimeTypeChecking for disabling runtime typechecking
  introduced in Pact 4.7 (#1231)

Formal Verification

• Fixed empty list type defaulting to any (#1224)
• Fixed partial biniding (#1227)

Tests

• Refactored test to avoid runIO within tests (#1129)
• Add CoverageSpec (#1228)
• Fix ReplSpec tests (#1216)
• Cleanup PactContinuationSpec (#1222)

Others

• Cleanup README.md (#1225)
• Bump Z3 versions in GH actions (#1126)

Pact 4.7.0

4.7.0

This marks the 4.7.0 version of the Pact smart contract language.

Eval

• Improve advice implementation (#1187)
• Fix inconsistent trace output (#1153)
• Fix coverage, restore defun advice (#1151)
• Create persistence dirs if missing (#1148)
• Differentiate between errors on-chain and off-chain (#1185)
• Don't display function documentation in non-repl context (#1185)
• Runtime type checking on return types now enforced (#1209)

Natives

• Allow native function versioning in eval (#1195)
• Add new native dec for integer to decimal conversion (#1150)
• Implement shift in terms of other natives for better gas costing (#1208)
• Intialize body of env-data to an empty object instead of Null (#1188)

• read-* functions are now recoverable if the key doesn't exist. That is, a call such as (read-string 'key) is recoverable if 'key does not exist in the data payload by surrounding it with try. As an example, (try "string if key isn't present" (read-string "key")). This applies to
  read-integer, read-string, read-decimal, read-keyset and read-msg (as long as read-msg has a key supplied as an argument - #1223 )

Typechecking

• Fix Typechecker treatment of special binding forms (#1212)

Formal Verification

• Enable warnings during symbolic eval (#1175)
• Remove emit-event shim (#1168)
• Remove hash shims (#1158)
• Remove enumerate shim (#1155)
• Remove distinct shim (#1154)
• Remove describe-namespace shim (#1156)
• Remove is-principal, typeof-principal, create-principal, and validate-principal shims (#1160)
• Remove format shim (#1159)

Documentation

• Remove mention of private defpacts from the reference manual (#1207)
• Add documentation for enumerate (#1176)

Misc

• New PR and Issue templates introduced.

Thanks to everyone for their contributions, especially @CryptoPascal31 for his wonderful feedback and commentary, and welcome to our newest Pact team member, @ak3n!.

4.6.0

• Add DisablePact46 execution flag (#1138)

• Add Zero Knowledge native operations (#1052)

• Add deprecation warning system (#1127)

• Build support for Nix flakes (#1083)

• Passage of time simulation in local pact server build (#1082)

• Fixed parsing failure message for Public Keys (#1097)

• print native now pretty prints output using term pretty printing (#1106)

• Typechecker:

  • now handles all const value types (#1116)
  • inlines mock dynamic references (#1120)

• Formal Verification:

  • Prevent usage of result fixed binding in defpact verification. (#1113)
  • Warning added for invaliding models when decimals are too high a
    precision (#1113)
  • Typechecker now correctly infers function type arguments (#1112)
  • Added debug flag to verify native, allowing outputs to be directed to
    SMTLib file on a per-module basis. (#1122)
  • Add shim for select in FV (#1090)

Thanks to everyone for their contributions, especially new contributors @qooboodoop and @omahs, and welcome to our newest Pact team member, @rsoeldner!.

Pact 4.4.1

• Export ApiReq constituent data structures (#1055)
• Fix test tree creation to allow tests to run faster, safer to run on a single core,
  and prevents test servers from being exposed to public environs (#1060, #1062)
• Added capability guards (#1057)
• Lazily evaluate enforce to reduce gas usage on evaluation (#1069)
• Gas adjustment for various natives (#1071)
• Fix FV regression that disallowed the verification of unary operators like abs (#1079)
• Documentation link fixes (thanks @przemeklach! #1075)

Pact 4.4

Changelog:

• Document VSCode support - thanks JeremeyJS! (#965)
• Documentation fixes - thanks JCM00N and Luzzotica! (#1003, #1021)
• Gas-related bug fixes and adjustments to format and try (#1020, #1019)
• Defined keysets are now required to be namespaced (#1011)
• Consolidated Pact 4.4 execution config flag (removes need for DisablePreserveNamespaceUpgrade flag, #1026)

Pact 4.3.1

Changelog:

• Add validate-principal, is-principal, typeof-principal, and create-principal natives #998
• Allow module upgrades without enforcing namespace user guards #1008
• Export haskell primitives for working with Principal guards #1006
• Add describe-namespace native #1010
• Add support for with-capability repl docs #1016
• Re-enable repl line info #1005