diff --git a/.github/workflows/job.test.yml b/.github/workflows/job.test.yml
index dc43df385..cec7859d3 100644
--- a/.github/workflows/job.test.yml
+++ b/.github/workflows/job.test.yml
@@ -214,15 +214,16 @@ jobs:
         include:
           # if using 3.6, use an old node
           - python: 3.6
-            # Node 10 end-of-life: April 2021
-            nodejs: '>=10,<11.0.0.a0'
-          # if using 3.7, use newer node, etc...
-          - python: 3.7
             # Node 12 end-of-life: April 2022
             nodejs: '>=12,<13.0.0.a0'
-          - python: 3.8
+          # if using 3.7, use newer node, etc...
+          - python: 3.7
             # Node 14 end-of-life: April 2023
             nodejs: '>=14,<15.0.0.a0'
+          - python: 3.8
+            # TODO: switch to Node 16 once gets merged https://github.com/conda-forge/nodejs-feedstock/pull/189
+            # Node 15 end-of-life: June 2021
+            nodejs: '>=15,<16.0.0.a0'
           # TODO: remove when mambaforge just works on setup-miniconda
           - os: ubuntu
             mambaforge: Linux-x86_64.sh
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1d545d56e..71825ec5e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,11 +6,17 @@
 
   - add ability to deactivate Kernel completions or LSP completion through the settings ([#586], thanks @Carreau)
   - allow to set a priority for LSP server, allowing to choose which server to use when multiple servers are installed ([#588])
+  - add auto-detection of pyright server ([#587], thanks @yuntan)
 
 - bug fixes:
-  - workaround url-parse issue causing problems when using JupyterLab 3.0.15 [#599]
+
+  - workaround url-parse issue causing problems when using JupyterLab 3.0.15 ([#599])
+
+- other changes:
+  - drop Node 10 (EOL 2 weeks ago) testing on CI, add Node 15 ([#587])
 
 [#586]: https://github.com/krassowski/jupyterlab-lsp/pull/586
+[#587]: https://github.com/krassowski/jupyterlab-lsp/pull/587
 [#588]: https://github.com/krassowski/jupyterlab-lsp/pull/588
 [#599]: https://github.com/krassowski/jupyterlab-lsp/pull/599
 
diff --git a/atest/01_Editor.robot b/atest/01_Editor.robot
index 9d2b5ca44..e27ce7650 100644
--- a/atest/01_Editor.robot
+++ b/atest/01_Editor.robot
@@ -43,9 +43,13 @@ Less
 Markdown
     Editor Shows Features for Language    Markdown    example.md    Diagnostics=`Color` is misspelt
 
-Python
+Python (pylsp)
     ${def} =    Set Variable    xpath:(//span[contains(@class, 'cm-variable')][contains(text(), 'fib')])[last()]
-    Editor Shows Features for Language    Python    example.py    Diagnostics=multiple spaces after keyword    Jump to Definition=${def}    Rename=${def}
+    Editor Shows Features for Server    pylsp    Python    example.py    Diagnostics=undefined name 'result' (pyflakes)    Jump to Definition=${def}    Rename=${def}
+
+Python (pyright)
+    ${def} =    Set Variable    xpath:(//span[contains(@class, 'cm-variable')][contains(text(), 'fib')])[last()]
+    Editor Shows Features for Server    pyright    Python    example.py    Diagnostics=is not defined (Pyright)    Jump to Definition=${def}
 
 R
     ${def} =    Set Variable    xpath:(//span[contains(@class, 'cm-variable')][contains(text(), 'fib')])[last()]
@@ -70,6 +74,12 @@ YAML
     Editor Shows Features for Language    YAML    example.yaml    Diagnostics=duplicate key
 
 *** Keywords ***
+Editor Shows Features for Server
+    [Arguments]    ${server}    ${Language}    ${file}    &{features}
+    Configure JupyterLab Plugin
+    ...    {"language_servers": {"${server}": {"priority": 10000}}}
+    Editor Shows Features for Language    ${Language}    ${file}    &{features}
+
 Editor Shows Features for Language
     [Arguments]    ${Language}    ${file}    &{features}
     Prepare File for Editing    ${Language}    editor    ${file}
diff --git a/atest/Keywords.robot b/atest/Keywords.robot
index f6dcfcbb3..a58e011f5 100644
--- a/atest/Keywords.robot
+++ b/atest/Keywords.robot
@@ -375,6 +375,7 @@ Configure JupyterLab Plugin
     Set Editor Content    ${settings json}    ${CSS USER SETTINGS}
     Wait Until Page Contains    No errors found
     Click Element    css:button[title\='Save User Settings']
+    Wait Until Page Contains    No errors found
     Click Element    ${JLAB XP CLOSE SETTINGS}
 
 Clean Up After Working with File and Settings
diff --git a/atest/examples/example.py b/atest/examples/example.py
index 43860557a..65ef1a758 100644
--- a/atest/examples/example.py
+++ b/atest/examples/example.py
@@ -2,7 +2,6 @@
 
 from itertools import  (accumulate, chain); accumulate
 
-
 # fibs :: Integer :: [Integer]
 def fibs(n):
     '''An accumulation of the first n integers in
@@ -27,5 +26,6 @@ def go(ab, _):
     print(
         'First twenty: ' + repr(
             fibs(20)
-        )
+        ),
+        result
     )
diff --git a/package.json b/package.json
index 2363b00ab..9d389a5bb 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,7 @@
     "npm-run-all": "^4.1.5",
     "precise-commits": "^1.0.2",
     "prettier": "^2.1.2",
+    "pyright": "^1.1",
     "sql-language-server": "^0.11.4",
     "typescript": "~4.1.3",
     "unified-language-server": "^0.3.0",
diff --git a/packages/jupyterlab-lsp/schema/plugin.json b/packages/jupyterlab-lsp/schema/plugin.json
index 8893348fa..ce314702b 100644
--- a/packages/jupyterlab-lsp/schema/plugin.json
+++ b/packages/jupyterlab-lsp/schema/plugin.json
@@ -31,7 +31,13 @@
     "language_servers": {
       "title": "Language Server",
       "description": "Language-server specific configuration, keyed by implementation, e.g: \n\npyls: {\n  serverSettings: {\n    pyls: {\n      plugins: {\n        pydocstyle: {\n          enabled: true\n        },\n        pyflakes: {\n          enabled: false\n        },\n        flake8: {\n          enabled: true\n        }\n      }\n    }\n  }\n}\n\nAlternatively, using VSCode's naming convention:\n\npyls: {\n  serverSettings: {\n    \"pyls.plugins.pydocstyle.enabled\": true,\n    \"pyls.plugins.pyflakes.enabled\": false,\n    \"pyls.plugins.flake8.enabled\": true\n  }\n}",
-      "default": {},
+      "default": {
+        "pyright": {
+          "serverSettings": {
+            "python.analysis.useLibraryCodeForTypes": true
+          }
+        }
+      },
       "patternProperties": {
         ".*": {
           "$ref": "#/definitions/language-server"
diff --git a/packages/jupyterlab-lsp/src/connection_manager.ts b/packages/jupyterlab-lsp/src/connection_manager.ts
index 1893ec5fb..926aa3bdd 100644
--- a/packages/jupyterlab-lsp/src/connection_manager.ts
+++ b/packages/jupyterlab-lsp/src/connection_manager.ts
@@ -162,16 +162,28 @@ export class DocumentConnectionManager {
   }
 
   /**
-   * Currently only supports the settings that the language servers
-   * accept using onDidChangeConfiguration messages, under the
-   * "serverSettings" keyword in the setting registry. New keywords can
-   * be added and extra functionality implemented here when needed.
+   * Handles the settings that do not require an existing connection
+   * with a language server (or can influence to which server the
+   * connection will be created, e.g. `priority`).
+   *
+   * This function should be called **before** initialization of servers.
+   */
+  public updateConfiguration(allServerSettings: TLanguageServerConfigurations) {
+    this.language_server_manager.setConfiguration(allServerSettings);
+  }
+
+  /**
+   * Handles the settings that the language servers accept using
+   * `onDidChangeConfiguration` messages, which should be passed under
+   * the "serverSettings" keyword in the setting registry.
+   * Other configuration options are handled by `updateConfiguration` instead.
+   *
+   * This function should be called **after** initialization of servers.
    */
   public updateServerConfigurations(
     allServerSettings: TLanguageServerConfigurations
   ) {
     let language_server_id: TServerKeys;
-    this.language_server_manager.setConfiguration(allServerSettings);
 
     for (language_server_id in allServerSettings) {
       if (!allServerSettings.hasOwnProperty(language_server_id)) {
diff --git a/packages/jupyterlab-lsp/src/index.ts b/packages/jupyterlab-lsp/src/index.ts
index 80de10f02..b8a71e7ba 100644
--- a/packages/jupyterlab-lsp/src/index.ts
+++ b/packages/jupyterlab-lsp/src/index.ts
@@ -179,8 +179,11 @@ export class LSPExtension implements ILSPExtension {
       .then(settings => {
         // Store the initial server settings, to be sent asynchronously
         // when the servers are initialized.
-        this.connection_manager.initial_configurations = (settings.composite
-          .language_servers || {}) as TLanguageServerConfigurations;
+        const initial_configuration = (settings.composite.language_servers ||
+          {}) as TLanguageServerConfigurations;
+        this.connection_manager.initial_configurations = initial_configuration;
+        // update the server-independent part of configuration immediately
+        this.connection_manager.updateConfiguration(initial_configuration);
 
         settings.changed.connect(() => {
           this.updateOptions(settings);
@@ -223,6 +226,10 @@ export class LSPExtension implements ILSPExtension {
 
     const languageServerSettings = (options.language_servers ||
       {}) as TLanguageServerConfigurations;
+
+    this.connection_manager.initial_configurations = languageServerSettings;
+    // TODO: if priorities changed reset connections
+    this.connection_manager.updateConfiguration(languageServerSettings);
     this.connection_manager.updateServerConfigurations(languageServerSettings);
   }
 }
diff --git a/packages/jupyterlab-lsp/src/manager.ts b/packages/jupyterlab-lsp/src/manager.ts
index 2a4e490c9..257cc4c56 100644
--- a/packages/jupyterlab-lsp/src/manager.ts
+++ b/packages/jupyterlab-lsp/src/manager.ts
@@ -90,7 +90,7 @@ export class LanguageServerManager implements ILanguageServerManager {
       }
     }
 
-    return matchingSessionsKeys.sort(this._comparePriorities);
+    return matchingSessionsKeys.sort(this._comparePriorities.bind(this));
   }
 
   get statusCode(): number {
diff --git a/packages/jupyterlab-lsp/src/utils.spec.ts b/packages/jupyterlab-lsp/src/utils.spec.ts
new file mode 100644
index 000000000..f0a66e380
--- /dev/null
+++ b/packages/jupyterlab-lsp/src/utils.spec.ts
@@ -0,0 +1,13 @@
+import { expect } from 'chai';
+
+import { uris_equal } from './utils';
+
+describe('uris_equal', () => {
+  it('should workaround Windows paths/Pyright issues', () => {
+    const result = uris_equal(
+      'file:///d%3A/a/jupyterlab-lsp/jupyterlab-lsp/atest/output/windows_39_4/home/n%C3%B6te%20b%C3%B2%C3%B3ks/example.py',
+      'file:///d:/a/jupyterlab-lsp/jupyterlab-lsp/atest/output/windows_39_4/home/n%C3%B6te%20b%C3%B2%C3%B3ks/example.py'
+    );
+    expect(result).to.equal(true);
+  });
+});
diff --git a/packages/jupyterlab-lsp/src/utils.ts b/packages/jupyterlab-lsp/src/utils.ts
index b61f0a463..ac9c1f262 100644
--- a/packages/jupyterlab-lsp/src/utils.ts
+++ b/packages/jupyterlab-lsp/src/utils.ts
@@ -2,7 +2,7 @@ import { PageConfig } from '@jupyterlab/coreutils';
 import { ReadonlyJSONObject, ReadonlyJSONValue } from '@lumino/coreutils';
 import mergeWith from 'lodash.mergewith';
 
-const RE_PATH_ANCHOR = /^file:\/\/([^\/]+|\/[A-Z]:)/;
+const RE_PATH_ANCHOR = /^file:\/\/([^\/]+|\/[a-zA-Z](?::|%3A))/;
 
 export async function sleep(timeout: number) {
   return new Promise<void>(resolve => {
@@ -142,7 +142,11 @@ export function is_win_path(uri: string) {
  * lowercase the drive component of a URI
  */
 export function normalize_win_path(uri: string) {
-  return uri.replace(RE_PATH_ANCHOR, it => it.toLowerCase());
+  // Pyright encodes colon on Windows, see:
+  // https://github.com/krassowski/jupyterlab-lsp/pull/587#issuecomment-844225253
+  return uri.replace(RE_PATH_ANCHOR, it =>
+    it.replace('%3A', ':').toLowerCase()
+  );
 }
 
 export function uri_to_contents_path(child: string, parent?: string) {
diff --git a/python_packages/jupyter_lsp/jupyter_lsp/specs/__init__.py b/python_packages/jupyter_lsp/jupyter_lsp/specs/__init__.py
index ecd6f4232..9081d342a 100644
--- a/python_packages/jupyter_lsp/jupyter_lsp/specs/__init__.py
+++ b/python_packages/jupyter_lsp/jupyter_lsp/specs/__init__.py
@@ -8,6 +8,7 @@
 from .jedi_language_server import JediLanguageServer
 from .julia_language_server import JuliaLanguageServer
 from .pyls import PalantirPythonLanguageServer
+from .pyright import PyrightLanguageServer
 from .python_lsp_server import PythonLSPServer
 from .r_languageserver import RLanguageServer
 from .sql_language_server import SQLLanguageServer
@@ -28,6 +29,7 @@
 md = UnifiedLanguageServer()
 py_palantir = PalantirPythonLanguageServer()
 py_lsp_server = PythonLSPServer()
+pyright = PyrightLanguageServer()
 r = RLanguageServer()
 tex = Texlab()
 ts = JavascriptTypescriptLanguageServer()
diff --git a/python_packages/jupyter_lsp/jupyter_lsp/specs/pyright.py b/python_packages/jupyter_lsp/jupyter_lsp/specs/pyright.py
new file mode 100644
index 000000000..517dd8acf
--- /dev/null
+++ b/python_packages/jupyter_lsp/jupyter_lsp/specs/pyright.py
@@ -0,0 +1,21 @@
+from .utils import NodeModuleSpec
+
+
+class PyrightLanguageServer(NodeModuleSpec):
+    node_module = key = "pyright"
+    script = ["langserver.index.js"]
+    args = ["--stdio"]
+    languages = ["python"]
+    spec = dict(
+        display_name=key,
+        mime_types=["text/python", "text/x-ipython"],
+        urls=dict(
+            home="https://github.com/microsoft/pyright",
+            issues="https://github.com/microsoft/pyright/issues",
+        ),
+        install=dict(
+            npm="npm install --save-dev {}".format(key),
+            yarn="yarn add --dev {}".format(key),
+            jlpm="jlpm add --dev {}".format(key),
+        ),
+    )
diff --git a/python_packages/jupyter_lsp/setup.cfg b/python_packages/jupyter_lsp/setup.cfg
index 4dddd261d..03851b196 100644
--- a/python_packages/jupyter_lsp/setup.cfg
+++ b/python_packages/jupyter_lsp/setup.cfg
@@ -41,6 +41,7 @@ jupyter_lsp_spec_v1 =
     julia-language-server = jupyter_lsp.specs:julia
     python-language-server = jupyter_lsp.specs:py_palantir
     python-lsp-server = jupyter_lsp.specs:py_lsp_server
+    pyright = jupyter_lsp.specs:pyright
     r-languageserver = jupyter_lsp.specs:r
     texlab = jupyter_lsp.specs:tex
     sql-language-server = jupyter_lsp.specs:sql
diff --git a/yarn.lock b/yarn.lock
index ef8cb0751..f8e9f125c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11445,6 +11445,11 @@ puppeteer@^1.17.0:
     rimraf "^2.6.1"
     ws "^6.1.0"
 
+pyright@^1.1:
+  version "1.1.140"
+  resolved "https://registry.yarnpkg.com/pyright/-/pyright-1.1.140.tgz#2692f67b2769e664983dff3fefee4c0e4d12f4fa"
+  integrity sha512-isJj7cahjEK7xAy5/aLJ4TfzLJGA4SCWqPk1pLJA3k8S6VUo4FIiPrvHOd1LM2gxImqgef4rwUeHRC+vrOKLRQ==
+
 q@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"