v0.12.6

🛠 Improvements

• Optimize activations (#571)
• Make occurrences and origins optional (#570)
• Update to hamt 37930cf9f7d8, which contains ForEach, optimize activations (#569)
• Move global values, global types, and transaction types to elaboration (#558)
• Improve AST indices (#556)
• Cache programs before checking succeeded, properly wrap returned error (#557)

Performance of checking and interpretation has been improved,
e.g. for BenchmarkCheckContractInterfaceFungibleTokenConformance:

Commit	Description	Ops	Time
21764d8	Baseline, v0.12.5	595	2018162 ns/op
df2ba05	Update hamt, use ForEach everywhere	1821	658515 ns/op
6088ce0	Optional occurrences and origins recording	2258	530121 ns/op
429a779	Optimize activations, replace use of HAMT map	3667	327368 ns/op

⭐ Features

• Optionally run checker tests concurrently (#554)

🐞 Bug Fixes

• Fix runtime type of Block.timestamp (#575)
• Use correct CommandSubmitTransaction command in entrypoint code lens (#568)
• Revert "always find the declared variable (#408)" (#561)
• Make parameter list thread-safe (#555)

📖 Documentation

• More developer documentation (#535)
• Update the roadmap (#553)
• Document how to inject value declarations (#547)

v0.10.6

🛠 Improvements

• Update to hamt 37930cf9f7d8, use ForEach instead of FirstRest (#566)
• Make checker occurrences and origins optional (#567)

v0.12.5

⭐ Features

• WebAssembly: Add support for memory and data sections (#425)
• Start of a compiler, with IR and WASM code generator (#409)
• Language Server: Parse pragma arguments declarations and show codelenses (#432)

🛠 Improvements

• Update the parser NPM package (#544)
• Update the language server and Monaco client NPM packages (#545)
• Interpreter: Always find the declared variable (#408)

🐞 Bug Fixes

• Fix the export of type values with restricted static types (#551)
• Fix nested enum declarations (#549)
• Language Server: Don't panic when notifications fail (#543)

v0.12.4

⭐ Features

• Argument list parsing and transaction declaration docstrings (#528)
• Add support for name section in WASM binary (#388)
• Add more WASM instructions (#381)
• Add support for export section in WASM binary writer and reader (#377)
• Generate code for instructions (#372)

🛠 Improvements

• WebAssembly package improvements (#542)
• Generate code for instructions (#372)

🐞 Bug Fixes

• Add support for multiple contracts per account to the language server (#540)

v0.12.3

🛠 Improvements

• Improve the parsing / checking error (#525)

v0.12.2

🛠 Improvements

• Export all checkers (#524)

📖 Documentation

• Add grammar for Cadence (#522)
• Add developer documentation (#523)
• Fix typos in documentation (#519)

v0.12.1

🛠 Improvements

• Improve the contract deployment error message (#507)

🐞 Bug Fixes

• Gracefully handle type loading failure (#510)

📖 Documentation

• Remove completed items from roadmap (#515)
• Add presentation about implementation (#506)

v0.10.5

🛠 Improvements

• Improve fixed-point multiplication and division (#508)
• Make AST thread-safe (#440)

🐞 Bug Fixes

• Gracefully handle type loading failure (#511)

v0.12.0

⭐ Features

• Add getType function (#493): It is now possible to get the run-time type of a value
• Flush the cache of the storage before querying the used storage amount (#480)
• Structured type identifiers (#477)
• Allow host environment to predeclare values, predicated on location (#472)
• Add a visitor for interpreter values (#449)
• Add support for imports in WASM writer and reader (#368)
• Add support for coverage reports (#465)
• Add storage fields to accounts (#439)
• Implement fmt.Stringer for cadence.Value (#434)
• Add a function to parse a literal with a given target type (#417)

🛠 Improvements

• Extend event parameter types and dictionary key types (#497)
• Optimize composite and interface static types (#489)
• Optimize composite values (#488)
• Fix the export of static types (#487)
• Improve error pretty printing (#481)
• Improve fixed-point multiplication and division (#490)
• Improve error messages for contract deployment name argument checks (#475)
• Add a test for decoding a struct with an address location without name (#469)
• Refactor address locations, make composite decoding backwards-compatible (#457)
• Improve error message when there are constructor argument (#455)
• Make AST thread-safe (#440)
• Add position information to interpreter errors (#424)

🐞 Bug Fixes

• Declare new contract's nested values before evaluating initializer (#504)
• Infer address location name from type ID for static types (#468)
• Fix optional value's type function (#458)
• Don't use the cache when deploying or updating account code (#447)
• Properly handle unspecified variable kind (#441)
• Prevent resource loss in failable downcasts (#426)

💥 Breaking Changes

This release contains no source-breaking changes for Cadence programs, but the following breaking changes when embedding Cadence:

• Structured type identifiers (#477)
• Add error return value to all interface methods (#470)

📖 Documentation

• Document that references are not storable and suggest using capabilities (#478)
• Update the diagram illustrating the architecture of the runtime (#476)
• Document the current options for syntax highlighting (#444)

v0.10.4

🛠 Improvements

• Allow non-fatal errors for all interface functions (#494, #495)
• Panic with array index out of bounds error (#496)