Bump version to v0.21.0 (#257)

Co-authored-by: mmtkgc-bot <[email protected]>

Author: wks

CHANGELOG.md

@@ -1,3 +1,12 @@
+0.21.0 (2023-11-03)
+===
+
+## What's Changed
+* Update to mmtk-core PR #988 by @qinsoon in https://github.com/mmtk/mmtk-openjdk/pull/255
+* Update to MMTk core PR #949 by @qinsoon in https://github.com/mmtk/mmtk-openjdk/pull/240
+
+**Full Changelog**: https://github.com/mmtk/mmtk-openjdk/compare/v0.20.0...v0.21.0
+
 0.20.0 (2023-09-29)
 ===
 

mmtk/Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "mmtk_openjdk"
-version = "0.20.0"
+version = "0.21.0"
 authors = [" <>"]
 rust-version = "1.70.0"
 build = "build.rs"
@@ -32,7 +32,7 @@ memoffset = "0.9.0"
 # - change branch
 # - change repo name
 # But other changes including adding/removing whitespaces in commented lines may break the CI.
-mmtk = { git = "https://github.com/mmtk/mmtk-core.git", rev = "57af17fbfd94ff0df2cd3b1e504abe299ce4f0ab" }
+mmtk = { git = "https://github.com/mmtk/mmtk-core.git", rev = "39d237189fdfa22873eeb529f3e97b7578d9b246" }
 # Uncomment the following to build locally
 # mmtk = { path = "../repos/mmtk-core" }