diff --git a/.github/ISSUE_TEMPLATE/1_broken_site.md b/.github/ISSUE_TEMPLATE/1_broken_site.md
index d82ff9111..40a869113 100644
--- a/.github/ISSUE_TEMPLATE/1_broken_site.md
+++ b/.github/ISSUE_TEMPLATE/1_broken_site.md
@@ -18,7 +18,7 @@ title: ''
 
 <!--
 Carefully read and work through this check list in order to prevent the most common mistakes and misuse of youtube-dl:
-- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2020.03.08. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
+- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2020.03.24. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
 - Make sure that all provided video/audio/playlist URLs (if any) are alive and playable in a browser.
 - Make sure that all URLs and arguments with special characters are properly quoted or escaped as explained in http://yt-dl.org/escape.
 - Search the bugtracker for similar issues: http://yt-dl.org/search-issues. DO NOT post duplicates.
@@ -26,7 +26,7 @@ Carefully read and work through this check list in order to prevent the most com
 -->
 
 - [ ] I'm reporting a broken site support
-- [ ] I've verified that I'm running youtube-dl version **2020.03.08**
+- [ ] I've verified that I'm running youtube-dl version **2020.03.24**
 - [ ] I've checked that all provided URLs are alive and playable in a browser
 - [ ] I've checked that all URLs and arguments with special characters are properly quoted or escaped
 - [ ] I've searched the bugtracker for similar issues including closed ones
@@ -41,7 +41,7 @@ Add the `-v` flag to your command line you run youtube-dl with (`youtube-dl -v <
  [debug] User config: []
  [debug] Command-line args: [u'-v', u'http://www.youtube.com/watch?v=BaW_jenozKcj']
  [debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
- [debug] youtube-dl version 2020.03.08
+ [debug] youtube-dl version 2020.03.24
  [debug] Python version 2.7.11 - Windows-2003Server-5.2.3790-SP2
  [debug] exe versions: ffmpeg N-75573-g1d0487f, ffprobe N-75573-g1d0487f, rtmpdump 2.4
  [debug] Proxy map: {}
diff --git a/.github/ISSUE_TEMPLATE/2_site_support_request.md b/.github/ISSUE_TEMPLATE/2_site_support_request.md
index 04b350f76..7b10df3d4 100644
--- a/.github/ISSUE_TEMPLATE/2_site_support_request.md
+++ b/.github/ISSUE_TEMPLATE/2_site_support_request.md
@@ -19,7 +19,7 @@ labels: 'site-support-request'
 
 <!--
 Carefully read and work through this check list in order to prevent the most common mistakes and misuse of youtube-dl:
-- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2020.03.08. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
+- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2020.03.24. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
 - Make sure that all provided video/audio/playlist URLs (if any) are alive and playable in a browser.
 - Make sure that site you are requesting is not dedicated to copyright infringement, see https://yt-dl.org/copyright-infringement. youtube-dl does not support such sites. In order for site support request to be accepted all provided example URLs should not violate any copyrights.
 - Search the bugtracker for similar site support requests: http://yt-dl.org/search-issues. DO NOT post duplicates.
@@ -27,7 +27,7 @@ Carefully read and work through this check list in order to prevent the most com
 -->
 
 - [ ] I'm reporting a new site support request
-- [ ] I've verified that I'm running youtube-dl version **2020.03.08**
+- [ ] I've verified that I'm running youtube-dl version **2020.03.24**
 - [ ] I've checked that all provided URLs are alive and playable in a browser
 - [ ] I've checked that none of provided URLs violate any copyrights
 - [ ] I've searched the bugtracker for similar site support requests including closed ones
diff --git a/.github/ISSUE_TEMPLATE/3_site_feature_request.md b/.github/ISSUE_TEMPLATE/3_site_feature_request.md
index 6f17ad7bc..04bbcfa68 100644
--- a/.github/ISSUE_TEMPLATE/3_site_feature_request.md
+++ b/.github/ISSUE_TEMPLATE/3_site_feature_request.md
@@ -18,13 +18,13 @@ title: ''
 
 <!--
 Carefully read and work through this check list in order to prevent the most common mistakes and misuse of youtube-dl:
-- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2020.03.08. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
+- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2020.03.24. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
 - Search the bugtracker for similar site feature requests: http://yt-dl.org/search-issues. DO NOT post duplicates.
 - Finally, put x into all relevant boxes (like this [x])
 -->
 
 - [ ] I'm reporting a site feature request
-- [ ] I've verified that I'm running youtube-dl version **2020.03.08**
+- [ ] I've verified that I'm running youtube-dl version **2020.03.24**
 - [ ] I've searched the bugtracker for similar site feature requests including closed ones
 
 
diff --git a/.github/ISSUE_TEMPLATE/4_bug_report.md b/.github/ISSUE_TEMPLATE/4_bug_report.md
index efb179ea5..a9e231817 100644
--- a/.github/ISSUE_TEMPLATE/4_bug_report.md
+++ b/.github/ISSUE_TEMPLATE/4_bug_report.md
@@ -18,7 +18,7 @@ title: ''
 
 <!--
 Carefully read and work through this check list in order to prevent the most common mistakes and misuse of youtube-dl:
-- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2020.03.08. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
+- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2020.03.24. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
 - Make sure that all provided video/audio/playlist URLs (if any) are alive and playable in a browser.
 - Make sure that all URLs and arguments with special characters are properly quoted or escaped as explained in http://yt-dl.org/escape.
 - Search the bugtracker for similar issues: http://yt-dl.org/search-issues. DO NOT post duplicates.
@@ -27,7 +27,7 @@ Carefully read and work through this check list in order to prevent the most com
 -->
 
 - [ ] I'm reporting a broken site support issue
-- [ ] I've verified that I'm running youtube-dl version **2020.03.08**
+- [ ] I've verified that I'm running youtube-dl version **2020.03.24**
 - [ ] I've checked that all provided URLs are alive and playable in a browser
 - [ ] I've checked that all URLs and arguments with special characters are properly quoted or escaped
 - [ ] I've searched the bugtracker for similar bug reports including closed ones
@@ -43,7 +43,7 @@ Add the `-v` flag to your command line you run youtube-dl with (`youtube-dl -v <
  [debug] User config: []
  [debug] Command-line args: [u'-v', u'http://www.youtube.com/watch?v=BaW_jenozKcj']
  [debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
- [debug] youtube-dl version 2020.03.08
+ [debug] youtube-dl version 2020.03.24
  [debug] Python version 2.7.11 - Windows-2003Server-5.2.3790-SP2
  [debug] exe versions: ffmpeg N-75573-g1d0487f, ffprobe N-75573-g1d0487f, rtmpdump 2.4
  [debug] Proxy map: {}
diff --git a/.github/ISSUE_TEMPLATE/5_feature_request.md b/.github/ISSUE_TEMPLATE/5_feature_request.md
index cf4874bcc..4a3d32d51 100644
--- a/.github/ISSUE_TEMPLATE/5_feature_request.md
+++ b/.github/ISSUE_TEMPLATE/5_feature_request.md
@@ -19,13 +19,13 @@ labels: 'request'
 
 <!--
 Carefully read and work through this check list in order to prevent the most common mistakes and misuse of youtube-dl:
-- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2020.03.08. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
+- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2020.03.24. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
 - Search the bugtracker for similar feature requests: http://yt-dl.org/search-issues. DO NOT post duplicates.
 - Finally, put x into all relevant boxes (like this [x])
 -->
 
 - [ ] I'm reporting a feature request
-- [ ] I've verified that I'm running youtube-dl version **2020.03.08**
+- [ ] I've verified that I'm running youtube-dl version **2020.03.24**
 - [ ] I've searched the bugtracker for similar feature requests including closed ones
 
 
diff --git a/ChangeLog b/ChangeLog
index 84b43c642..f753972c4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,30 @@
+version 2020.03.24
+
+Core
+- [utils] Revert support for cookie files with spaces used instead of tabs
+
+Extractors
+* [teachable] Update upskillcourses and gns3 domains
+* [generic] Look for teachable embeds before wistia
++ [teachable] Extract chapter metadata (#24421)
++ [bilibili] Add support for player.bilibili.com (#24402)
++ [bilibili] Add support for new URL schema with BV ids (#24439, #24442)
+* [limelight] Remove disabled API requests (#24255)
+* [soundcloud] Fix download URL extraction (#24394)
++ [cbc:watch] Add support for authentication (#19160)
+* [hellporno] Fix extraction (#24399)
+* [xtube] Fix formats extraction (#24348)
+* [ndr] Fix extraction (#24326)
+* [nhk] Update m3u8 URL and use native HLS downloader (#24329)
+- [nhk] Remove obsolete rtmp formats (#24329)
+* [nhk] Relax URL regular expression (#24329)
+- [vimeo] Revert fix showcase password protected video extraction (#24224)
+
+
 version 2020.03.08
 
 Core
-+ [utils] Add support for cookie files with spaces
++ [utils] Add support for cookie files with spaces used instead of tabs
 
 Extractors
 + [pornhub] Add support for pornhubpremium.com (#24288)
diff --git a/docs/supportedsites.md b/docs/supportedsites.md
index 02bc088ab..174b83bf3 100644
--- a/docs/supportedsites.md
+++ b/docs/supportedsites.md
@@ -98,6 +98,7 @@
  - **BiliBili**
  - **BilibiliAudio**
  - **BilibiliAudioAlbum**
+ - **BiliBiliPlayer**
  - **BioBioChileTV**
  - **BIQLE**
  - **BitChute**
diff --git a/youtube_dl/extractor/generic.py b/youtube_dl/extractor/generic.py
index d1ec56be9..a495ee15a 100644
--- a/youtube_dl/extractor/generic.py
+++ b/youtube_dl/extractor/generic.py
@@ -2536,6 +2536,11 @@ class GenericIE(InfoExtractor):
             return self.playlist_from_matches(
                 dailymail_urls, video_id, video_title, ie=DailyMailIE.ie_key())
 
+        # Look for Teachable embeds, must be before Wistia
+        teachable_url = TeachableIE._extract_url(webpage, url)
+        if teachable_url:
+            return self.url_result(teachable_url)
+
         # Look for embedded Wistia player
         wistia_urls = WistiaIE._extract_urls(webpage)
         if wistia_urls:
@@ -3141,10 +3146,6 @@ class GenericIE(InfoExtractor):
             return self.playlist_from_matches(
                 peertube_urls, video_id, video_title, ie=PeerTubeIE.ie_key())
 
-        teachable_url = TeachableIE._extract_url(webpage, url)
-        if teachable_url:
-            return self.url_result(teachable_url)
-
         indavideo_urls = IndavideoEmbedIE._extract_urls(webpage)
         if indavideo_urls:
             return self.playlist_from_matches(
diff --git a/youtube_dl/extractor/teachable.py b/youtube_dl/extractor/teachable.py
index 4316a6962..a75369dbe 100644
--- a/youtube_dl/extractor/teachable.py
+++ b/youtube_dl/extractor/teachable.py
@@ -7,7 +7,9 @@ from .wistia import WistiaIE
 from ..utils import (
     clean_html,
     ExtractorError,
+    int_or_none,
     get_element_by_class,
+    strip_or_none,
     urlencode_postdata,
     urljoin,
 )
@@ -19,8 +21,8 @@ class TeachableBaseIE(InfoExtractor):
 
     _SITES = {
         # Only notable ones here
-        'upskillcourses.com': 'upskill',
-        'academy.gns3.com': 'gns3',
+        'v1.upskillcourses.com': 'upskill',
+        'gns3.teachable.com': 'gns3',
         'academyhacker.com': 'academyhacker',
         'stackskills.com': 'stackskills',
         'market.saleshacker.com': 'saleshacker',
@@ -109,27 +111,29 @@ class TeachableIE(TeachableBaseIE):
                     ''' % TeachableBaseIE._VALID_URL_SUB_TUPLE
 
     _TESTS = [{
-        'url': 'http://upskillcourses.com/courses/essential-web-developer-course/lectures/1747100',
+        'url': 'https://gns3.teachable.com/courses/gns3-certified-associate/lectures/6842364',
         'info_dict': {
-            'id': 'uzw6zw58or',
-            'ext': 'mp4',
-            'title': 'Welcome to the Course!',
-            'description': 'md5:65edb0affa582974de4625b9cdea1107',
-            'duration': 138.763,
-            'timestamp': 1479846621,
-            'upload_date': '20161122',
+            'id': 'untlgzk1v7',
+            'ext': 'bin',
+            'title': 'Overview',
+            'description': 'md5:071463ff08b86c208811130ea1c2464c',
+            'duration': 736.4,
+            'timestamp': 1542315762,
+            'upload_date': '20181115',
+            'chapter': 'Welcome',
+            'chapter_number': 1,
         },
         'params': {
             'skip_download': True,
         },
     }, {
-        'url': 'http://upskillcourses.com/courses/119763/lectures/1747100',
+        'url': 'http://v1.upskillcourses.com/courses/119763/lectures/1747100',
         'only_matching': True,
     }, {
-        'url': 'https://academy.gns3.com/courses/423415/lectures/6885939',
+        'url': 'https://gns3.teachable.com/courses/423415/lectures/6885939',
         'only_matching': True,
     }, {
-        'url': 'teachable:https://upskillcourses.com/courses/essential-web-developer-course/lectures/1747100',
+        'url': 'teachable:https://v1.upskillcourses.com/courses/essential-web-developer-course/lectures/1747100',
         'only_matching': True,
     }]
 
@@ -173,11 +177,34 @@ class TeachableIE(TeachableBaseIE):
 
         title = self._og_search_title(webpage, default=None)
 
+        chapter = None
+        chapter_number = None
+        section_item = self._search_regex(
+            r'(?s)(?P<li><li[^>]+\bdata-lecture-id=["\']%s[^>]+>.+?</li>)' % video_id,
+            webpage, 'section item', default=None, group='li')
+        if section_item:
+            chapter_number = int_or_none(self._search_regex(
+                r'data-ss-position=["\'](\d+)', section_item, 'section id',
+                default=None))
+            if chapter_number is not None:
+                sections = []
+                for s in re.findall(
+                        r'(?s)<div[^>]+\bclass=["\']section-title[^>]+>(.+?)</div>', webpage):
+                    section = strip_or_none(clean_html(s))
+                    if not section:
+                        sections = []
+                        break
+                    sections.append(section)
+                if chapter_number <= len(sections):
+                    chapter = sections[chapter_number - 1]
+
         entries = [{
             '_type': 'url_transparent',
             'url': wistia_url,
             'ie_key': WistiaIE.ie_key(),
             'title': title,
+            'chapter': chapter,
+            'chapter_number': chapter_number,
         } for wistia_url in wistia_urls]
 
         return self.playlist_result(entries, video_id, title)
@@ -192,20 +219,20 @@ class TeachableCourseIE(TeachableBaseIE):
                         /(?:courses|p)/(?:enrolled/)?(?P<id>[^/?#&]+)
                     ''' % TeachableBaseIE._VALID_URL_SUB_TUPLE
     _TESTS = [{
-        'url': 'http://upskillcourses.com/courses/essential-web-developer-course/',
+        'url': 'http://v1.upskillcourses.com/courses/essential-web-developer-course/',
         'info_dict': {
             'id': 'essential-web-developer-course',
             'title': 'The Essential Web Developer Course (Free)',
         },
         'playlist_count': 192,
     }, {
-        'url': 'http://upskillcourses.com/courses/119763/',
+        'url': 'http://v1.upskillcourses.com/courses/119763/',
         'only_matching': True,
     }, {
-        'url': 'http://upskillcourses.com/courses/enrolled/119763',
+        'url': 'http://v1.upskillcourses.com/courses/enrolled/119763',
         'only_matching': True,
     }, {
-        'url': 'https://academy.gns3.com/courses/enrolled/423415',
+        'url': 'https://gns3.teachable.com/courses/enrolled/423415',
         'only_matching': True,
     }, {
         'url': 'teachable:https://learn.vrdev.school/p/gear-vr-developer-mini',
diff --git a/youtube_dl/version.py b/youtube_dl/version.py
index 0f768f7c1..5aedd3268 100644
--- a/youtube_dl/version.py
+++ b/youtube_dl/version.py
@@ -1,3 +1,3 @@
 from __future__ import unicode_literals
 
-__version__ = '2020.03.08'
+__version__ = '2020.03.24'