Add changelog to source tree.

Changelog.md

@@ -0,0 +1,187 @@
+Features:
+
+ * Fixed point types (in progress)
+
+Bugfixes:
+
+### 0.3.6 (2016-08-08)
+
+Features:
+
+ * Formal verification: Take external effects on a contract into account.
+ * Type Checker: Warning about unused return value of low-level calls and send.
+ * Output: Source location and node id as part of AST output
+ * Output: Source location mappings for bytecode
+ * Output: Formal verification as part of json compiler output.
+
+Bugfixes:
+
+ * Commandline Interface: Do not crash if input is taken from stdin.
+ * Scanner: Correctly support unicode escape codes in strings.
+ * JSON output: Fix error about relative / absolute source file names.
+ * JSON output: Fix error about invalid utf8 strings.
+ * Code Generator: Dynamic allocation of empty array caused infinite loop.
+ * Code Generator: Correctly calculate gas requirements for memcpy precompile.
+ * Optimizer: Clear known state if two code paths are joined.
+
+### 0.3.5 (2016-06-10)
+
+Features:
+
+ * Context-dependent path remappings (different modules can use the same library in different versions)
+
+Bugfixes:
+
+ * Type Checking: Dynamic return types were removed when fetching data from external calls, now they are replaced by an "unusable" type.
+ * Type Checking: Overrides by constructors were considered making a function non-abstract.
+
+### 0.3.4 (2016-05-31)
+
+No change outside documentation.
+
+### 0.3.3 (2016-05-27)
+
+ * Allow internal library functions to be called (by "inlining")
+ * Fractional/rational constants (only usable with fixed point types, which are still in progress)
+ * Inline assembly has access to internal functions (as jump labels)
+ * Running `solc` without arguments on a terminal will print help.
+ * Bugfix: Remove some non-determinism in code generation.
+ * Bugfix: Corrected usage of not / bnot / iszero in inline assembly
+ * Bugfix: Correctly clean bytesNN types before comparison
+
+### 0.3.2 (2016-04-18)
+
+ * Bugfix: Inline assembly parser: `byte` opcode was unusable
+ * Bugfix: Error reporting: tokens for variably-sized types were not converted to string properly
+ * Bugfix: Dynamic arrays of structs were not deleted correctly.
+ * Bugfix: Static arrays in constructor parameter list were not decoded correctly.
+
+### 0.3.1 (2016-03-31)
+
+ * Inline assembly
+ * Bugfix: Code generation: array access with narrow types did not clean higher order bits
+ * Bugfix: Error reporting: error reporting with unknown source location caused a crash
+
+### 0.3.0 (2016-03-11)
+
+BREAKING CHANGES:
+
+ * Added new keywords `assembly`, `foreign`, `fixed`, `ufixed`, `fixedNxM`, `ufixedNxM` (for various values of M and N), `timestamp`
+ * Number constant division does not round to integer, but to a fixed point type (e.g. `1 / 2 != 1`, but `1 / 2 == 0.5`).
+ * Library calls now default to use DELEGATECALL (e.g. called library functions see the same value as the calling function for `msg.value` and `msg.sender`).
+ * `<address>.delegatecall` as a low-level calling interface
+
+Bugfixes:
+ * Fixed a bug in the optimizer that resulted in comparisons being wrong.
+
+
+### 0.2.2 (2016-02-17)
+
+ * Index access for types `bytes1`, ..., `bytes32` (only read access for now).
+ * Bugfix: Type checker crash for wrong number of base constructor parameters.
+
+### 0.2.1 (2016-01-30)
+
+ * Inline arrays, i.e. `var y = [1,x,f()];` if there is a common type for `1`, `x` and `f()`. Note that the result is always a fixed-length memory array and conversion to dynamic-length memory arrays is not yet possible.
+ * Import similar to ECMAScript6 import (`import "abc.sol" as d` and `import {x, y} from "abc.sol"`).
+ * Commandline compiler solc automatically resolves missing imports and allows for "include directories".
+ * Conditional: `x ? y : z`
+ * Bugfix: Fixed several bugs where the optimizer generated invalid code.
+ * Bugfix: Enums and structs were not accessible to other contracts.
+ * Bugfix: Fixed segfault connected to function paramater types, appeared during gas estimation.
+ * Bugfix: Type checker crash for wrong number of base constructor parameters.
+ * Bugfix: Allow function overloads with different array types.
+ * Bugfix: Allow assignments of type `(x) = 7`.
+ * Bugfix: Type `uint176` was not available.
+ * Bugfix: Fixed crash during type checking concerning constructor calls.
+ * Bugfix: Fixed crash during code generation concerning invalid accessors for struct types.
+ * Bugfix: Fixed crash during code generating concerning computing a hash of a struct type.
+
+### 0.2.0 (2015-12-02)
+
+ * **Breaking Change**: `new ContractName.value(10)()` has to be written as `(new ContractName).value(10)()`
+ * Added `selfdestruct` as an alias for `suicide`.
+ * Allocation of memory arrays using `new`.
+ * Binding library functions to types via `using x for y`
+ * `addmod` and `mulmod` (modular addition and modular multiplication with arbitrary intermediate precision)
+ * Bugfix: Constructor arguments of fixed array type were not read correctly.
+ * Bugfix: Memory allocation of structs containing arrays or strings.
+ * Bugfix: Data location for explicit memory parameters in libraries was set to storage.
+
+### 0.1.7 (2015-11-17)
+
+ * Improved error messages for unexpected tokens.
+ * Proof-of-concept transcompilation to why3 for formal verification of contracts.
+ * Bugfix: Arrays (also strings) as indexed parameters of events.
+ * Bugfix: Writing to elements of `bytes` or `string` overwrite others.
+ * Bugfix: "Successor block not found" on Windows.
+ * Bugfix: Using string literals in tuples.
+ * Bugfix: Cope with invalid commit hash in version for libraries.
+ * Bugfix: Some test framework fixes on windows.
+
+### 0.1.6 (2015-10-16)
+
+ * `.push()` for dynamic storage arrays.
+ * Tuple expressions (`(1,2,3)` or `return (1,2,3);`)
+ * Declaration and assignment of multiple variables (`var (x,y,) = (1,2,3,4,5);` or `var (x,y) = f();`)
+ * Destructuring assignment (`(x,y,) = (1,2,3)`)
+ * Bugfix: Internal error about usage of library function with invalid types.
+ * Bugfix: Correctly parse `Library.structType a` at statement level.
+ * Bugfix: Correctly report source locations of parenthesized expressions (as part of "tuple" story).
+
+### 0.1.5 (2015-10-07)
+
+ * Breaking change in storage encoding: Encode short byte arrays and strings together with their length in storage.
+ * Report warnings
+ * Allow storage reference types for public library functions.
+ * Access to types declared in other contracts and libraries via `.`.
+ * Version stamp at beginning of runtime bytecode of libraries.
+ * Bugfix: Problem with initialized string state variables and dynamic data in constructor.
+ * Bugfix: Resolve dependencies concerning `new` automatically.
+ * Bugfix: Allow four indexed arguments for anonymous events.
+ * Bugfix: Detect too large integer constants in functions that accept arbitrary parameters.
+
+### 0.1.4 (2015-09-30)
+
+ * Bugfix: Returning fixed-size arrays.
+ * Bugfix: combined-json output of solc.
+ * Bugfix: Accessing fixed-size array return values.
+ * Bugfix: Disallow assignment from literal strings to storage pointers.
+ * Refactoring: Move type checking into its own module.
+
+### 0.1.3 (2015-09-25)
+
+ * `throw` statement.
+ * Libraries that contain functions which are called via CALLCODE.
+ * Linker stage for compiler to insert other contract's addresses (used for libraries).
+ * Compiler option to output runtime part of contracts.
+ * Compile-time out of bounds check for access to fixed-size arrays by integer constants.
+ * Version string includes libevmasm/libethereum's version (contains the optimizer).
+ * Bugfix: Accessors for constant public state variables.
+ * Bugfix: Propagate exceptions in clone contracts.
+ * Bugfix: Empty single-line comments are now treated properly.
+ * Bugfix: Properly check the number of indexed arguments for events.
+ * Bugfix: Strings in struct constructors.
+
+### 0.1.2 (2015-08-20)
+
+ * Improved commandline interface.
+ * Explicit conversion between `bytes` and `string`.
+ * Bugfix: Value transfer used in clone contracts.
+ * Bugfix: Problem with strings as mapping keys.
+ * Bugfix: Prevent usage of some operators.
+
+### 0.1.1 (2015-08-04)
+
+ * Strings can be used as mapping keys.
+ * Clone contracts.
+ * Mapping members are skipped for structs in memory.
+ * Use only a single stack slot for storage references.
+ * Improved error message for wrong argument count. (#2456)
+ * Bugfix: Fix comparison between `bytesXX` types. (#2087)
+ * Bugfix: Do not allow floats for integer literals. (#2078)
+ * Bugfix: Some problem with many local variables. (#2478)
+ * Bugfix: Correctly initialise `string` and `bytes` state variables.
+ * Bugfix: Correctly compute gas requirements for callcode.
+
+### 0.1.0 (2015-07-10)

README.md

@@ -6,7 +6,7 @@ To get started you can find a basic introduction to the language in the [Solidit
 
 You can start using [Solidity in your browser](https://ethereum.github.io/browser-solidity/) with no need to download or compile anything.
 
-[Changelog](https://github.com/ethereum/wiki/wiki/Solidity-Changelog)
+[Changelog](https://github.com/ethereum/solidity/blob/develop/Changelog.md)
 
 The [Solidity Features](https://github.com/ethereum/wiki/wiki/Solidity-Features) page contains a list of already completed Solidity feature stories with explanations and demonstrations, it is being updated continuously. More technical information you can find in the [Pivotal Tracker](https://www.pivotaltracker.com/n/projects/1189488).