diff --git a/CHANGELOG-2.x.md b/CHANGELOG-2.x.md
index 747bb70845..985b7f18cf 100644
--- a/CHANGELOG-2.x.md
+++ b/CHANGELOG-2.x.md
@@ -1,5 +1,49 @@
 # Docusaurus 2 Changelog
 
+## 2.0.0-alpha.50 (2020-04-02)
+
+**HOTFIX for 2.0.0-alpha.49**.
+
+#### :bug: Bug Fix
+
+- `docusaurus-theme-classic`, `docusaurus-theme-live-codeblock`
+  - [#2509](https://github.com/facebook/docusaurus/pull/2509) fix(v2): synchronize code block components changes ([@lex111](https://github.com/lex111))
+- `docusaurus-theme-classic`
+  - [#2498](https://github.com/facebook/docusaurus/pull/2498) fix(v2): blog item styling ([@yangshun](https://github.com/yangshun))
+  - [#2489](https://github.com/facebook/docusaurus/pull/2489) fix(v2): fix HTML issues nav dropdown and highlight docs item ([@lex111](https://github.com/lex111))
+- `docusaurus`
+  - [#2496](https://github.com/facebook/docusaurus/pull/2496) fix(v2): do not force terminate building when running deploy command ([@lex111](https://github.com/lex111))
+- `docusaurus-utils`
+  - [#2497](https://github.com/facebook/docusaurus/pull/2497) fix(v2): unbreak blog-only mode routing by deplicating starting forward slashes ([@SamChou19815](https://github.com/SamChou19815))
+
+#### :nail_care: Polish
+
+- `docusaurus-theme-classic`
+  - [#2505](https://github.com/facebook/docusaurus/pull/2505) fix(v2): tweak colors for announcement bar ([@yangshun](https://github.com/yangshun))
+  - [#2504](https://github.com/facebook/docusaurus/pull/2504) refactor(v2): improve announcement bar ([@lex111](https://github.com/lex111))
+  - [#2495](https://github.com/facebook/docusaurus/pull/2495) refactor(v2): update HTML markup of pagination for better a11y ([@lex111](https://github.com/lex111))
+- `docusaurus-theme-classic`, `docusaurus-theme-live-codeblock`
+  - [#2502](https://github.com/facebook/docusaurus/pull/2502) fix(v2): make code block nicer ([@yangshun](https://github.com/yangshun))
+- `docusaurus-plugin-content-docs`, `docusaurus`
+  - [#2490](https://github.com/facebook/docusaurus/pull/2490) fix(v2): use lodash instead of array-map-polyfill ([@lex111](https://github.com/lex111))
+
+#### :memo: Documentation
+
+- `docusaurus-theme-classic`
+  - [#2500](https://github.com/facebook/docusaurus/pull/2500) docs(v2): misc docs updates ([@yangshun](https://github.com/yangshun))
+
+#### :house: Internal
+
+- [#2486](https://github.com/facebook/docusaurus/pull/2486) misc: add instructions about test release ([@lex111](https://github.com/lex111))
+
+#### Committers: 5
+
+- Alexey Pyltsyn ([@lex111](https://github.com/lex111))
+- Can Gencer ([@cangencer](https://github.com/cangencer))
+- Richard Chan ([@iWun](https://github.com/iWun))
+- Sam Zhou ([@SamChou19815](https://github.com/SamChou19815))
+- Yangshun Tay ([@yangshun](https://github.com/yangshun))
+
 ## 2.0.0-alpha.49 (2020-04-01)
 
 #### :rocket: New Feature
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/blog.md b/website/versioned_docs/version-2.0.0-alpha.50/blog.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/blog.md
rename to website/versioned_docs/version-2.0.0-alpha.50/blog.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/cli.md b/website/versioned_docs/version-2.0.0-alpha.50/cli.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/cli.md
rename to website/versioned_docs/version-2.0.0-alpha.50/cli.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/configuration.md b/website/versioned_docs/version-2.0.0-alpha.50/configuration.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/configuration.md
rename to website/versioned_docs/version-2.0.0-alpha.50/configuration.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/contributing.md b/website/versioned_docs/version-2.0.0-alpha.50/contributing.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/contributing.md
rename to website/versioned_docs/version-2.0.0-alpha.50/contributing.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/creating-pages.md b/website/versioned_docs/version-2.0.0-alpha.50/creating-pages.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/creating-pages.md
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diff --git a/website/versioned_docs/version-2.0.0-alpha.49/deployment.md b/website/versioned_docs/version-2.0.0-alpha.50/deployment.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/deployment.md
rename to website/versioned_docs/version-2.0.0-alpha.50/deployment.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/design-principles.md b/website/versioned_docs/version-2.0.0-alpha.50/design-principles.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/design-principles.md
rename to website/versioned_docs/version-2.0.0-alpha.50/design-principles.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/docusaurus-core.md b/website/versioned_docs/version-2.0.0-alpha.50/docusaurus-core.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/docusaurus-core.md
rename to website/versioned_docs/version-2.0.0-alpha.50/docusaurus-core.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/docusaurus.config.js.md b/website/versioned_docs/version-2.0.0-alpha.50/docusaurus.config.js.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/docusaurus.config.js.md
rename to website/versioned_docs/version-2.0.0-alpha.50/docusaurus.config.js.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/installation.md b/website/versioned_docs/version-2.0.0-alpha.50/installation.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/installation.md
rename to website/versioned_docs/version-2.0.0-alpha.50/installation.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/introduction.md b/website/versioned_docs/version-2.0.0-alpha.50/introduction.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/introduction.md
rename to website/versioned_docs/version-2.0.0-alpha.50/introduction.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/lifecycle-apis.md b/website/versioned_docs/version-2.0.0-alpha.50/lifecycle-apis.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/lifecycle-apis.md
rename to website/versioned_docs/version-2.0.0-alpha.50/lifecycle-apis.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/markdown-features.mdx b/website/versioned_docs/version-2.0.0-alpha.50/markdown-features.mdx
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/markdown-features.mdx
rename to website/versioned_docs/version-2.0.0-alpha.50/markdown-features.mdx
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/migrating-from-v1-to-v2.md b/website/versioned_docs/version-2.0.0-alpha.50/migrating-from-v1-to-v2.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/migrating-from-v1-to-v2.md
rename to website/versioned_docs/version-2.0.0-alpha.50/migrating-from-v1-to-v2.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/presets.md b/website/versioned_docs/version-2.0.0-alpha.50/presets.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/presets.md
rename to website/versioned_docs/version-2.0.0-alpha.50/presets.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/resources.md b/website/versioned_docs/version-2.0.0-alpha.50/resources.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/resources.md
rename to website/versioned_docs/version-2.0.0-alpha.50/resources.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/search.md b/website/versioned_docs/version-2.0.0-alpha.50/search.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/search.md
rename to website/versioned_docs/version-2.0.0-alpha.50/search.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/sidebar.md b/website/versioned_docs/version-2.0.0-alpha.50/sidebar.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/sidebar.md
rename to website/versioned_docs/version-2.0.0-alpha.50/sidebar.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/static-assets.md b/website/versioned_docs/version-2.0.0-alpha.50/static-assets.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/static-assets.md
rename to website/versioned_docs/version-2.0.0-alpha.50/static-assets.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/styling-layout.md b/website/versioned_docs/version-2.0.0-alpha.50/styling-layout.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/styling-layout.md
rename to website/versioned_docs/version-2.0.0-alpha.50/styling-layout.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/theme-classic.md b/website/versioned_docs/version-2.0.0-alpha.50/theme-classic.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/theme-classic.md
rename to website/versioned_docs/version-2.0.0-alpha.50/theme-classic.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/using-plugins.md b/website/versioned_docs/version-2.0.0-alpha.50/using-plugins.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/using-plugins.md
rename to website/versioned_docs/version-2.0.0-alpha.50/using-plugins.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/using-themes.md b/website/versioned_docs/version-2.0.0-alpha.50/using-themes.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/using-themes.md
rename to website/versioned_docs/version-2.0.0-alpha.50/using-themes.md
diff --git a/website/versioned_docs/version-2.0.0-alpha.49/versioning.md b/website/versioned_docs/version-2.0.0-alpha.50/versioning.md
similarity index 100%
rename from website/versioned_docs/version-2.0.0-alpha.49/versioning.md
rename to website/versioned_docs/version-2.0.0-alpha.50/versioning.md
diff --git a/website/versioned_sidebars/version-2.0.0-alpha.49-sidebars.json b/website/versioned_sidebars/version-2.0.0-alpha.50-sidebars.json
similarity index 56%
rename from website/versioned_sidebars/version-2.0.0-alpha.49-sidebars.json
rename to website/versioned_sidebars/version-2.0.0-alpha.50-sidebars.json
index ed6d5c471a..e9b0e69c86 100644
--- a/website/versioned_sidebars/version-2.0.0-alpha.49-sidebars.json
+++ b/website/versioned_sidebars/version-2.0.0-alpha.50-sidebars.json
@@ -1,24 +1,24 @@
 {
-  "version-2.0.0-alpha.49/docs": [
+  "version-2.0.0-alpha.50/docs": [
     {
       "type": "category",
       "label": "Docusaurus",
       "items": [
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/introduction"
+          "id": "version-2.0.0-alpha.50/introduction"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/design-principles"
+          "id": "version-2.0.0-alpha.50/design-principles"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/contributing"
+          "id": "version-2.0.0-alpha.50/contributing"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/resources"
+          "id": "version-2.0.0-alpha.50/resources"
         }
       ]
     },
@@ -28,11 +28,11 @@
       "items": [
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/installation"
+          "id": "version-2.0.0-alpha.50/installation"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/configuration"
+          "id": "version-2.0.0-alpha.50/configuration"
         }
       ]
     },
@@ -42,15 +42,15 @@
       "items": [
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/creating-pages"
+          "id": "version-2.0.0-alpha.50/creating-pages"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/styling-layout"
+          "id": "version-2.0.0-alpha.50/styling-layout"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/static-assets"
+          "id": "version-2.0.0-alpha.50/static-assets"
         },
         {
           "type": "category",
@@ -58,33 +58,33 @@
           "items": [
             {
               "type": "doc",
-              "id": "version-2.0.0-alpha.49/markdown-features"
+              "id": "version-2.0.0-alpha.50/markdown-features"
             },
             {
               "type": "doc",
-              "id": "version-2.0.0-alpha.49/sidebar"
+              "id": "version-2.0.0-alpha.50/sidebar"
             },
             {
               "type": "doc",
-              "id": "version-2.0.0-alpha.49/versioning"
+              "id": "version-2.0.0-alpha.50/versioning"
             }
           ]
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/blog"
+          "id": "version-2.0.0-alpha.50/blog"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/search"
+          "id": "version-2.0.0-alpha.50/search"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/deployment"
+          "id": "version-2.0.0-alpha.50/deployment"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/migrating-from-v1-to-v2"
+          "id": "version-2.0.0-alpha.50/migrating-from-v1-to-v2"
         }
       ]
     },
@@ -94,15 +94,15 @@
       "items": [
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/using-plugins"
+          "id": "version-2.0.0-alpha.50/using-plugins"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/using-themes"
+          "id": "version-2.0.0-alpha.50/using-themes"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/presets"
+          "id": "version-2.0.0-alpha.50/presets"
         }
       ]
     },
@@ -112,23 +112,23 @@
       "items": [
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/cli"
+          "id": "version-2.0.0-alpha.50/cli"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/docusaurus-core"
+          "id": "version-2.0.0-alpha.50/docusaurus-core"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/docusaurus.config.js"
+          "id": "version-2.0.0-alpha.50/docusaurus.config.js"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/lifecycle-apis"
+          "id": "version-2.0.0-alpha.50/lifecycle-apis"
         },
         {
           "type": "doc",
-          "id": "version-2.0.0-alpha.49/theme-classic"
+          "id": "version-2.0.0-alpha.50/theme-classic"
         }
       ]
     }
diff --git a/website/versions.json b/website/versions.json
index d0f1c4f5df..7a44997923 100644
--- a/website/versions.json
+++ b/website/versions.json
@@ -1,5 +1,5 @@
 [
-  "2.0.0-alpha.49",
+  "2.0.0-alpha.50",
   "2.0.0-alpha.48",
   "2.0.0-alpha.43",
   "2.0.0-alpha.40"