Merge pull request #9460 from ethereum/prepare0612

Prepare for 0.6.12 release.

Author: chriseth

Diff for: Changelog.md

@@ -1,27 +1,30 @@
-### 0.6.12 (unreleased)
+### 0.6.12 (2020-07-22)
 
 Language Features:
+ * NatSpec: Implement tag ``@inheritdoc`` to copy documentation from a specific base contract.
  * Wasm backend: Add ``i32.ctz``, ``i64.ctz``, ``i32.popcnt``, and ``i64.popcnt``.
 
+
 Compiler Features:
+ * Code Generator: Avoid double cleanup when copying to memory.
  * Code Generator: Evaluate ``keccak256`` of string literals at compile-time.
+ * Optimizer: Add rule to remove shifts inside the byte opcode.
+ * Peephole Optimizer: Add rule to remove swap after dup.
  * Peephole Optimizer: Remove unnecessary masking of tags.
  * Yul EVM Code Transform: Free stack slots directly after visiting the right-hand-side of variable declarations instead of at the end of the statement only.
- * NatSpec: Implement tag ``@inheritdoc`` to copy documentation from a specific contract.
+
 
 Bugfixes:
+ * SMTChecker: Fix error in events with indices of type static array.
+ * SMTChecker: Fix internal error in sequential storage array pushes (``push().push()``).
  * SMTChecker: Fix internal error when using bitwise operators on fixed bytes type.
  * SMTChecker: Fix internal error when using compound bitwise operator assignments on array indices inside branches.
- * SMTChecker: Fix error in events with indices of type static array.
- * SMTChecker: Fix internal error in sequential storage array pushes (``push().push()`).
- * Type Checker: Fix overload resolution in combination with ``{value: ...}``.
  * Type Checker: Fix internal compiler error related to oversized types.
- * Code Generator: Avoid double cleanup when copying to memory.
+ * Type Checker: Fix overload resolution in combination with ``{value: ...}``.
 
-Compiler Features:
- * Build System: Update internal dependency of jsoncpp to 1.9.3.
- * Optimizer: Add rule to remove shifts inside the byte opcode.
- * Peephole Optimizer: Add rule to remove swap after dup.
+
+Build System:
+ * Update internal dependency of jsoncpp to 1.9.3.
 
 
 ### 0.6.11 (2020-07-07)

Diff for: docs/bugs_by_version.json

@@ -1113,6 +1113,10 @@
         "bugs": [],
         "released": "2020-07-07"
     },
+    "0.6.12": {
+        "bugs": [],
+        "released": "2020-07-22"
+    },
     "0.6.2": {
         "bugs": [
             "MissingEscapingInFormatting",