diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1730b4c33..50941edc5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,10 +4,21 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Prerelease] - Unreleased
 
+## [v0.12.0] - 2025-12-09
+
+### Fixed
+* Fix guest tracing deadlock when exception happens during tracing data serialization by @dblnz in https://github.com/hyperlight-dev/hyperlight/pull/1066
+* Fix StackOverflow produced by guest logging by @dblnz in https://github.com/hyperlight-dev/hyperlight/pull/1067
+* Fix guest call to `halt` not dropping allocated trace data leading to memory leak  by @dblnz in https://github.com/hyperlight-dev/hyperlight/pull/1072
+* Update the interrupt handler for 16byte alignment by @jsturtevant in https://github.com/hyperlight-dev/hyperlight/pull/1037
+
+### Added
+* Guest function improvements and macros by @jprendes in https://github.com/hyperlight-dev/hyperlight/pull/851
+* Add metric for erroneous vCPU kicks from stale cancellations by @Copilot in https://github.com/hyperlight-dev/hyperlight/pull/1034
+
 ### Removed
 * Remove outdated `is_supported_platform` (use `is_hypervisor_present` instead) and unused `ExtraAllowedSyscall` by @ludfjig in https://github.com/hyperlight-dev/hyperlight/pull/1062
 
-
 ## [v0.11.0] - 2025-11-04
 
 ### Fixed
@@ -225,7 +236,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 The Initial Hyperlight Release 🎉 
 
 
-[Prerelease]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.11.0..HEAD>
+[Prerelease]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.12.0..HEAD>
+[v0.12.0]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.10.0...v0.12.0>
 [v0.11.0]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.10.0...v0.11.0>
 [v0.10.0]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.9.0...v0.10.0>
 [v0.9.0]: <https://github.com/hyperlight-dev/hyperlight/compare/v0.8.0...v0.9.0>
diff --git a/Cargo.lock b/Cargo.lock
index 22067ba0a..966d257ef 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1382,7 +1382,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-common"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "anyhow",
  "arbitrary",
@@ -1395,7 +1395,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-component-macro"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "env_logger",
  "hyperlight-component-util",
@@ -1409,7 +1409,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-component-util"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "itertools 0.14.0",
  "log",
@@ -1432,7 +1432,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "anyhow",
  "flatbuffers",
@@ -1444,7 +1444,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-bin"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "buddy_system_allocator",
  "cc",
@@ -1463,7 +1463,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-macro"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -1473,7 +1473,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-tracing"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "hyperlight-common",
  "spin 0.10.0",
@@ -1483,7 +1483,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-host"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "anyhow",
  "bitflags 2.10.0",
@@ -1569,7 +1569,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight_guest_capi"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "cbindgen",
  "flatbuffers",
diff --git a/Cargo.toml b/Cargo.toml
index 6c158160a..6dff13772 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,7 @@ exclude = [
 ]
 
 [workspace.package]
-version = "0.11.0"
+version = "0.12.0"
 edition = "2024"
 rust-version = "1.89"
 license = "Apache-2.0"
@@ -36,15 +36,15 @@ repository = "https://github.com/hyperlight-dev/hyperlight"
 readme = "README.md"
 
 [workspace.dependencies]
-hyperlight-common = { path = "src/hyperlight_common", version = "0.11.0", default-features = false }
-hyperlight-host = { path = "src/hyperlight_host", version = "0.11.0", default-features = false }
-hyperlight-guest = { path = "src/hyperlight_guest", version = "0.11.0", default-features = false }
-hyperlight-guest-bin = { path = "src/hyperlight_guest_bin", version = "0.11.0", default-features = false }
-hyperlight-guest-macro = { path = "src/hyperlight_guest_macro", version = "0.11.0", default-features = false }
+hyperlight-common = { path = "src/hyperlight_common", version = "0.12.0", default-features = false }
+hyperlight-host = { path = "src/hyperlight_host", version = "0.12.0", default-features = false }
+hyperlight-guest = { path = "src/hyperlight_guest", version = "0.12.0", default-features = false }
+hyperlight-guest-bin = { path = "src/hyperlight_guest_bin", version = "0.12.0", default-features = false }
+hyperlight-guest-macro = { path = "src/hyperlight_guest_macro", version = "0.12.0", default-features = false }
 hyperlight-testing = { path = "src/hyperlight_testing", default-features = false }
-hyperlight-guest-tracing = { path = "src/hyperlight_guest_tracing", version = "0.11.0", default-features = false }
-hyperlight-component-util = { path = "src/hyperlight_component_util", version = "0.11.0", default-features = false }
-hyperlight-component-macro = { path = "src/hyperlight_component_macro", version = "0.11.0", default-features = false }
+hyperlight-guest-tracing = { path = "src/hyperlight_guest_tracing", version = "0.12.0", default-features = false }
+hyperlight-component-util = { path = "src/hyperlight_component_util", version = "0.12.0", default-features = false }
+hyperlight-component-macro = { path = "src/hyperlight_component_macro", version = "0.12.0", default-features = false }
 
 [workspace.lints.rust]
 unsafe_op_in_unsafe_fn = "deny"
diff --git a/src/tests/rust_guests/dummyguest/Cargo.lock b/src/tests/rust_guests/dummyguest/Cargo.lock
index e43391031..51a6aed35 100644
--- a/src/tests/rust_guests/dummyguest/Cargo.lock
+++ b/src/tests/rust_guests/dummyguest/Cargo.lock
@@ -82,7 +82,7 @@ checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
 
 [[package]]
 name = "hyperlight-common"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "anyhow",
  "flatbuffers",
@@ -93,7 +93,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "anyhow",
  "flatbuffers",
@@ -105,7 +105,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-bin"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "buddy_system_allocator",
  "cc",
@@ -124,7 +124,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-macro"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -134,7 +134,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-tracing"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "hyperlight-common",
  "spin 0.10.0",
diff --git a/src/tests/rust_guests/simpleguest/Cargo.lock b/src/tests/rust_guests/simpleguest/Cargo.lock
index 5706c2017..032791dab 100644
--- a/src/tests/rust_guests/simpleguest/Cargo.lock
+++ b/src/tests/rust_guests/simpleguest/Cargo.lock
@@ -74,7 +74,7 @@ checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
 
 [[package]]
 name = "hyperlight-common"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "anyhow",
  "flatbuffers",
@@ -85,7 +85,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "anyhow",
  "flatbuffers",
@@ -97,7 +97,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-bin"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "buddy_system_allocator",
  "cc",
@@ -116,7 +116,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-macro"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -126,7 +126,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-tracing"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "hyperlight-common",
  "spin 0.10.0",
diff --git a/src/tests/rust_guests/witguest/Cargo.lock b/src/tests/rust_guests/witguest/Cargo.lock
index eb5642641..7933a0903 100644
--- a/src/tests/rust_guests/witguest/Cargo.lock
+++ b/src/tests/rust_guests/witguest/Cargo.lock
@@ -184,7 +184,7 @@ checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
 
 [[package]]
 name = "hyperlight-common"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "anyhow",
  "flatbuffers",
@@ -195,7 +195,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-component-macro"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "env_logger",
  "hyperlight-component-util",
@@ -209,7 +209,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-component-util"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "itertools",
  "log",
@@ -222,7 +222,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "anyhow",
  "flatbuffers",
@@ -234,7 +234,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-bin"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "buddy_system_allocator",
  "cc",
@@ -253,7 +253,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-macro"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
@@ -263,7 +263,7 @@ dependencies = [
 
 [[package]]
 name = "hyperlight-guest-tracing"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "hyperlight-common",
  "spin 0.10.0",