diff --git a/VERSION b/VERSION
index 1cf0537c..5a03fb73 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.19.0
+0.20.0
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
new file mode 100644
index 00000000..28f36ada
--- /dev/null
+++ b/docs/CHANGELOG.md
@@ -0,0 +1,76 @@
+# Changelog
+
+All notable changes to `planet` are documented here.
+
+This project follows the repository versioning rule:
+
+- `feature` -> `+0.1.0`
+- `bugfix` -> `+0.0.1`
+
+## 0.20.0
+
+Released: 2026-03-26
+
+### Highlights
+
+- Stabilized the Earth big-screen module for longer-running sessions.
+- Fixed satellite orbit generation by correcting TLE handling end to end.
+- Added a reusable backend TLE helper and exposed `tle_line1 / tle_line2` to the Earth frontend.
+
+### Added
+
+- Added a dedicated Earth module remediation plan in [earth-module-plan.md](/home/ray/dev/linkong/planet/docs/earth-module-plan.md).
+- Added backend TLE helpers in [satellite_tle.py](/home/ray/dev/linkong/planet/backend/app/core/satellite_tle.py).
+- Added backend support for returning `tle_line1` and `tle_line2` from the satellite visualization API.
+
+### Improved
+
+- Reworked the Earth module lifecycle with cleaner init, reload, and destroy paths.
+- Improved scene cleanup for cables, landing points, satellite markers, and related runtime state.
+- Reduced Earth interaction overhead by reusing hot-path math and pointer objects.
+- Switched satellite animation timing to real delta-based updates for more stable motion.
+- Reduced fragile global-state coupling inside the legacy Earth runtime.
+
+### Fixed
+
+- Fixed white-screen risk caused by iframe cleanup behavior in development mode.
+- Fixed incorrect client-side TLE generation:
+  - corrected line 2 field ordering
+  - corrected eccentricity formatting
+  - added checksum generation
+- Fixed fallback orbit issues affecting some Starlink satellites such as `STARLINK-36158`.
+- Fixed partial Earth data load failures so one failed source is less likely to break the whole view.
+
+### Notes
+
+- The Earth frontend now prefers backend-provided raw TLE lines.
+- Older satellite records can still fall back to backend-generated TLE lines when raw lines are unavailable.
+- This release is primarily focused on Earth module stability rather than visible admin UI changes.
+
+## 0.19.0
+
+Released: 2026-03-25
+
+### Highlights
+
+- Refined data collection storage and history handling.
+- Moved collected data away from several strongly coupled legacy columns.
+- Improved data list filtering, metadata-driven detail rendering, and collection workflows.
+
+### Added
+
+- Added collected data history planning docs.
+- Added metadata backfill and removal-readiness scripts.
+- Added version history tracking.
+
+### Improved
+
+- Improved datasource task tracking and collection status flow.
+- Improved collected data search, filtering, and metadata rendering.
+- Improved configuration center layout consistency across admin pages.
+
+### Fixed
+
+- Fixed several collected-data field mapping issues.
+- Fixed frontend table layout inconsistencies across multiple admin pages.
+- Fixed TOP500 parsing and related metadata alignment issues.
diff --git a/docs/version-history.md b/docs/version-history.md
index c2217fe6..c4ba134d 100644
--- a/docs/version-history.md
+++ b/docs/version-history.md
@@ -16,7 +16,7 @@
 ## Current Version
 
 - `main` 当前主线历史推导到：`0.16.5`
-- `dev` 当前开发分支历史推导到：`0.19.0`
+- `dev` 当前开发分支历史推导到：`0.20.0`
 
 ## Timeline
 
@@ -61,6 +61,7 @@
 | `0.18.0` | feature | `dev` | `ef0fefdf` | persist system settings and refine admin layouts |
 | `0.18.1` | bugfix | `dev` | `cc5f16f8` | fix settings layout and frontend startup checks |
 | `0.19.0` | feature | `dev` | `020c1d50` | refine data management and collection workflows |
+| `0.20.0` | feature | `dev` | `ce5feba3` | stabilize Earth module and fix satellite TLE handling |
 
 ## Maintenance Commits Not Counted as Version Bumps
 
diff --git a/frontend/package.json b/frontend/package.json
index 4e2d4472..9c15708c 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "planet-frontend",
-  "version": "0.19.0",
+  "version": "0.20.0",
   "private": true,
   "dependencies": {
     "@ant-design/icons": "^5.2.6",
diff --git a/pyproject.toml b/pyproject.toml
index 19ede2a2..7c18b658 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "planet"
-version = "0.19.0"
+version = "0.20.0"
 description = "智能星球计划 - 态势感知系统"
 requires-python = ">=3.14"
 dependencies = [
diff --git a/uv.lock b/uv.lock
index c94250c3..ed6ae818 100644
--- a/uv.lock
+++ b/uv.lock
@@ -475,7 +475,7 @@ wheels = [
 
 [[package]]
 name = "planet"
-version = "0.19.0"
+version = "0.20.0"
 source = { virtual = "." }
 dependencies = [
     { name = "aiofiles" },