Bump version to v0.12 (#592)

Author: qinsoon

CHANGELOG.md

@@ -1,3 +1,26 @@
+0.12.0 (2022-05-13)
+===
+
+GC Plans
+---
+* Introduced `trait PlanTraceObject` and procedural macros to derive implementation for it for all the current plans.
+* Introduced a work packet type `PlanProcessEdges` that uses `PlanTraceObject`. All the current plans use this type for tracing objects.
+
+Policy
+---
+* Introduced `trait PolicyTraceObject`. Added an implementation for each policy.
+
+API
+---
+* Preliminary support for Java-style weak reference is added (set the option `no_reference_types=false` to enable it). Related APIs are slightly changed.
+* The type parameter `TransitiveClosure` in `Scanning::scan_object()/scan_objects()` is now replaced with `vm::EdgeVisitor`.
+* Minor changes to `Scanning::scan_object()/scan_objects()` so they are more consistent.
+
+Misc
+---
+* Fixed a bug in object forwarding: an object can leave the being-forwarded state without actually being forwarded, and this
+  now won't cause a panic.
+
 0.11.0 (2022-04-01)
 ===
 

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mmtk"
-version = "0.11.0"
+version = "0.12.0"
 authors = ["The MMTk Developers <>"]
 edition = "2018"
 license = "MIT OR Apache-2.0"
@@ -19,7 +19,7 @@ doctest = false
 
 [dependencies]
 # MMTk macros
-mmtk-macros = { version = "0.11.0", path = "macros/" }
+mmtk-macros = { version = "0.12.0", path = "macros/" }
 
 custom_derive = "0.1"
 enum_derive = "0.1"

macros/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "mmtk-macros"
 # the macro crate uses the same version as mmtk-core
-version = "0.11.0"
+version = "0.12.0"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "MMTk macros provides procedural macros used by mmtk-core."