diff --git a/.gitattributes b/.gitattributes
deleted file mode 100644
index 6f71563e6..000000000
--- a/.gitattributes
+++ /dev/null
@@ -1,5 +0,0 @@
-bundle/** linguist-vendored
-autoload/SpaceVim/api/iconv/** linguist-vendored
-lua/spacevim/api/iconv/** linguist-vendored
-docs/** linguist-documentation
-bundle/git.vim/** linguist-detectable
diff --git a/.vintrc.yaml b/.vintrc.yaml
deleted file mode 100644
index 121a0285a..000000000
--- a/.vintrc.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
-cmdargs:
-  # Checking more strictly
-  severity: style_problem
-
-policies:
-  ProhibitImplicitScopeVariable:
-    enabled: false
-  ProhibitAbbreviationOption:
-    enabled: false
-  ProhibitSetNoCompatible:
-    enabled: false
-  ProhibitEqualTildeOperator:
-    enabled : true
diff --git a/codecov.yml b/codecov.yml
deleted file mode 100644
index 20ee421dc..000000000
--- a/codecov.yml
+++ /dev/null
@@ -1,23 +0,0 @@
-comment: off
-codecov:
-  branch: master
-coverage:
-  status:
-    patch:
-      default: false
-    project:
-      default: false  # disable the default status that measures entire project
-      api:  # declare a new status context "api"
-        target: 1%  # we always want 35% coverage here
-        paths:
-          - "autoload/SpaceVim/api/"  # only include coverage in "autoload/SpaceVim/api/" folder
-      plugins:  # declare a new status context "api"
-        target: 15%  # we always want 35% coverage here
-        paths:
-          - "autoload/SpaceVim/plugins/"  # only include coverage in "autoload/SpaceVim/api/" folder
-      all:  # declare a new status context "all"
-        target: 90%  # we always want 35% coverage here
-        paths:
-          - "!tests/"  # remove all files in "tests/"
-          - "!bundle/"  # remove all files in "tests/"
-
diff --git a/docs/index.md b/docs/index.md
index e1c74207d..4ce9bc9a9 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -58,29 +58,7 @@ Follow our twitter: [@SpaceVim](https://twitter.com/SpaceVim)
 
 - Which version of Vim/Neovim is needed?
 
-  SpaceVim has been tested in [github action](https://github.com/SpaceVim/SpaceVim/actions) with following
-  versions of neovim and vim:
-
-  | Program | Version   | Windows | Linux |
-  | ------- | --------- | ------- | ----- |
-  | vim     | v8.2.3995 | √       | √     |
-  | vim     | v8.2.2434 | √       | √     |
-  | vim     | v8.1.2669 | √       | √     |
-  | vim     | v7.0.1453 | √       | √     |
-  | vim     | v7.0.0184 | √       | √     |
-  | vim     | v7.0.0183 | √       | √     |
-  | vim     | v8.0.027  | √       | √     |
-  | vim     | v7.4.1689 | √       | √     |
-  | vim     | v7.4.629  | √       | √     |
-  | vim     | v7.4.052  | √       | √     |
-  | neovim  | v0.6.1    | √       | √     |
-  | neovim  | v0.6.0    | √       | √     |
-  | neovim  | v0.5.1    | √       | √     |
-  | neovim  | v0.5.0    | √       | √     |
-  | neovim  | v0.4.4    | √       | √     |
-  | neovim  | v0.4.3    | √       | √     |
-  | neovim  | v0.4.2    | √       | √     |
-  | neovim  | v0.3.8    | √       | √     |
+  It is recommended to use neovim 0.9.5 or Vim9
 
 For more general questions, please read the SpaceVim [FAQ](faq/).