Bump version to v0.20 (#250)

Author: qinsoon

CHANGELOG.md

@@ -1,3 +1,20 @@
+0.20.0 (2023-09-29)
+===
+
+## What's Changed
+* Updating code to reflect API change by @udesou in https://github.com/mmtk/mmtk-openjdk/pull/238
+* Fix Cargo.lock by @wenyuzhao in https://github.com/mmtk/mmtk-openjdk/pull/239
+* Update tests to use dacapo-23.9-RC3-chopin by @qinsoon in https://github.com/mmtk/mmtk-openjdk/pull/241
+* Check results for new CI, allow some benchmarks to fail by @qinsoon in https://github.com/mmtk/mmtk-openjdk/pull/211
+* Fix ignored env var options by @wks in https://github.com/mmtk/mmtk-openjdk/pull/244
+* Update pgo-build script to use the pinned Rust toolchain by @caizixian in https://github.com/mmtk/mmtk-openjdk/pull/236
+* Compressed Oops Support by @wenyuzhao in https://github.com/mmtk/mmtk-openjdk/pull/235
+
+## New Contributors
+* @udesou made their first contribution in https://github.com/mmtk/mmtk-openjdk/pull/238
+
+**Full Changelog**: https://github.com/mmtk/mmtk-openjdk/compare/v0.19.0...v0.20.0
+
 0.19.0 (2023-08-18)
 ===
 

mmtk/Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "mmtk_openjdk"
-version = "0.19.0"
+version = "0.20.0"
 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 = "15e19a1afa9de3403bd9f1405e4aaa78f7d1a68d" }
+mmtk = { git = "https://github.com/mmtk/mmtk-core.git", rev = "9a676e68dd41272b57e6812dc404ffa6391668e2" }
 # Uncomment the following to build locally
 # mmtk = { path = "../repos/mmtk-core" }