diff --git a/dev-docs/pmc-chair.adoc b/dev-docs/pmc-chair.adoc
index 9c0c9b0e5f44..f0b0393325cc 100644
--- a/dev-docs/pmc-chair.adoc
+++ b/dev-docs/pmc-chair.adoc
@@ -48,7 +48,7 @@ Once their ICLA is on file, the Infra team will set up their account and grant t
 
 If the person already has an ICLA on file, anyone on the PMC can go to the  https://whimsy.apache.org/roster/committee/lucene[Lucene roster in Whimsy] and add the person.
 
-See also http://apache.org/dev/pmc.html#noncommitter for details on the process.
+See also https://apache.org/dev/pmc.html#noncommitter for details on the process.
 
 === Jira and Confluence Permissions
 
@@ -70,7 +70,7 @@ The board will not respond. After 72 hours, check that the mail appears in the B
 
 Once the 72 hours has passed, the Chair can go to the https://whimsy.apache.org/roster/committee/lucene[Lucene roster in Whimsy] and change the person from a Committer to a member of the PMC.
 
-See also: http://www.apache.org/dev/pmc.html#newpmc.
+See also: https://www.apache.org/dev/pmc.html#newpmc.
 
 == Security Issues
 
diff --git a/dev-tools/doap/solr.rdf b/dev-tools/doap/solr.rdf
index 899f036a1f39..878a693dc6f0 100644
--- a/dev-tools/doap/solr.rdf
+++ b/dev-tools/doap/solr.rdf
@@ -27,7 +27,7 @@
 
   Note that the canonical URL may redirect to other non-canonical locations.
 -->
-  <Project rdf:about="http://lucene.apache.org/solr/">
+  <Project rdf:about="https://solr.apache.org/">
     <created>2006-01-17</created>
     <license rdf:resource="http://www.apache.org/licenses/LICENSE-2.0"/>
     <name>Apache Solr</name>
diff --git a/dev-tools/scripts/README.md b/dev-tools/scripts/README.md
index 94e696451775..8eb3169b305a 100644
--- a/dev-tools/scripts/README.md
+++ b/dev-tools/scripts/README.md
@@ -92,25 +92,6 @@ of the other tools in this folder.
     Example usage for a Release Manager:
     python3 -u dev-tools/scripts/buildAndPushRelease.py --push-local /tmp/releases/6.0.1 --sign 6E68DA61 --rc-num 1
 
-### addBackcompatIndexes.py
-
-    usage: addBackcompatIndexes.py [-h] [--force] [--no-cleanup] [--temp-dir DIR]
-                                   version
-    
-    Add backcompat index and test for new version.  See:
-    http://wiki.apache.org/lucene-java/ReleaseTodo#Generate_Backcompat_Indexes
-    
-    positional arguments:
-      version         Version to add, of the form X.Y.Z
-    
-    optional arguments:
-      -h, --help      show this help message and exit
-      --force         Redownload the version and rebuild, even if it already
-                      exists
-      --no-cleanup    Do not cleanup the built indexes, so that they can be reused
-                      for adding to another branch
-      --temp-dir DIR  Temp directory to build backcompat indexes within
-
 ### addVersion.py
 
     usage: addVersion.py [-h] version
diff --git a/dev-tools/scripts/addBackcompatIndexes.py b/dev-tools/scripts/addBackcompatIndexes.py
deleted file mode 100755
index 289839bc7f90..000000000000
--- a/dev-tools/scripts/addBackcompatIndexes.py
+++ /dev/null
@@ -1,272 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-
-# For usage information, see:
-# 
-#   http://wiki.apache.org/lucene-java/ReleaseTodo#Generate_Backcompat_Indexes
-
-
-import os
-import sys
-sys.path.append(os.path.dirname(__file__))
-import scriptutil
-
-import argparse
-import urllib.error
-import urllib.request
-import re
-import shutil
-
-def create_and_add_index(source, indextype, index_version, current_version, temp_dir):
-  if not current_version.is_back_compat_with(index_version):
-    prefix = 'unsupported'
-  else:
-    prefix = {
-      'cfs': 'index',
-      'nocfs': 'index',
-      'sorted': 'sorted',
-      'moreterms': 'moreterms',
-      'dvupdates': 'dvupdates',
-      'emptyIndex': 'empty'
-    }[indextype]
-  if indextype in ('cfs', 'nocfs'):
-    dirname = 'index.%s' % indextype
-    filename = '%s.%s-%s.zip' % (prefix, index_version, indextype)
-  else:
-    dirname = indextype
-    filename = '%s.%s.zip' % (prefix, index_version)
-  
-  print('  creating %s...' % filename, end='', flush=True)
-  module = 'backward-codecs'
-  index_dir = os.path.join('lucene', module, 'src/test/org/apache/lucene/backward_index')
-  test_file = os.path.join(index_dir, filename)
-  if os.path.exists(os.path.join(index_dir, filename)):
-    print('uptodate')
-    return
-
-  test = {
-    'cfs': 'testCreateCFS',
-    'nocfs': 'testCreateNoCFS',
-    'sorted': 'testCreateSortedIndex',
-    'moreterms': 'testCreateMoreTermsIndex',
-    'dvupdates': 'testCreateIndexWithDocValuesUpdates',
-    'emptyIndex': 'testCreateEmptyIndex'
-  }[indextype]
-  ant_args = ' '.join([
-    '-Dtests.bwcdir=%s' % temp_dir,
-    '-Dtests.codec=default',
-    '-Dtests.useSecurityManager=false',
-    '-Dtestcase=TestBackwardsCompatibility',
-    '-Dtestmethod=%s' % test
-  ])
-  base_dir = os.getcwd()
-  bc_index_dir = os.path.join(temp_dir, dirname)
-  bc_index_file = os.path.join(bc_index_dir, filename)
-  
-  if os.path.exists(bc_index_file):
-    print('alreadyexists')
-  else:
-    if os.path.exists(bc_index_dir):
-      shutil.rmtree(bc_index_dir)
-    os.chdir(os.path.join(source, module))
-    scriptutil.run('ant test %s' % ant_args)
-    os.chdir(bc_index_dir)
-    scriptutil.run('zip %s *' % filename)
-    print('done')
-  
-  print('  adding %s...' % filename, end='', flush=True)
-  scriptutil.run('cp %s %s' % (bc_index_file, os.path.join(base_dir, index_dir)))
-  os.chdir(base_dir)
-  scriptutil.run('rm -rf %s' % bc_index_dir)
-  print('done')
-
-def update_backcompat_tests(types, index_version, current_version):
-  print('  adding new indexes %s to backcompat tests...' % types, end='', flush=True)
-  module = 'lucene/backward-codecs'
-  filename = '%s/src/test/org/apache/lucene/backward_index/TestBackwardsCompatibility.java' % module
-  if not current_version.is_back_compat_with(index_version):
-    matcher = re.compile(r'final String\[\] unsupportedNames = {|};')
-  elif 'sorted' in types:
-    matcher = re.compile(r'static final String\[\] oldSortedNames = {|};')
-  else:
-    matcher = re.compile(r'static final String\[\] oldNames = {|};')
-
-  strip_dash_suffix_re = re.compile(r'-.*')
-
-  def find_version(x):
-    x = x.strip()
-    x = re.sub(strip_dash_suffix_re, '', x) # remove the -suffix if any
-    return scriptutil.Version.parse(x)
-
-  class Edit(object):
-    start = None
-    def __call__(self, buffer, match, line):
-      if self.start:
-        # find where this version should exist
-        i = len(buffer) - 1
-        previous_version_exists = not ('};' in line and buffer[-1].strip().endswith("{"))
-        if previous_version_exists: # Only look if there is a version here
-          v = find_version(buffer[i])
-          while i >= self.start and v.on_or_after(index_version):
-            i -= 1
-            v = find_version(buffer[i])
-        i += 1 # readjust since we skipped past by 1
-
-        # unfortunately python doesn't have a range remove from list...
-        # here we want to remove any previous references to the version we are adding
-        while i < len(buffer) and index_version.on_or_after(find_version(buffer[i])):
-          buffer.pop(i)
-
-        if i == len(buffer) and previous_version_exists and not buffer[-1].strip().endswith(","):
-          # add comma
-          buffer[-1] = buffer[-1].rstrip() + ",\n" 
-
-        if previous_version_exists:
-          last = buffer[-1]
-          spaces = ' ' * (len(last) - len(last.lstrip()))
-        else:
-          spaces = '    '
-        for (j, t) in enumerate(types):
-          if t == 'sorted':
-            newline = spaces + ('"sorted.%s"') % index_version
-          else:
-            newline = spaces + ('"%s-%s"' % (index_version, t))
-          if j < len(types) - 1 or i < len(buffer):
-            newline += ','
-          buffer.insert(i, newline + '\n')
-          i += 1
-
-        buffer.append(line)
-        return True
-
-      if 'Names = {' in line:
-        self.start = len(buffer) # location of first index name
-      buffer.append(line)
-      return False
-        
-  changed = scriptutil.update_file(filename, matcher, Edit())
-  print('done' if changed else 'uptodate')
-
-def check_backcompat_tests():
-  print('  checking backcompat tests...', end='', flush=True)
-  scriptutil.run('./gradlew -p lucene/backward-codecs test --tests TestBackwardsCompatibility')
-  print('ok')
-
-def download_from_mirror(version, remotename, localname):
-  url = 'http://apache.cs.utah.edu/lucene/java/%s/%s' % (version, remotename)
-  try:
-    urllib.request.urlretrieve(url, localname)
-    return True
-  except urllib.error.URLError as e:
-    if e.code == 404:
-      return False
-    raise e
-
-def download_from_archives(version, remotename, localname):
-  url = 'http://archive.apache.org/dist/lucene/java/%s/%s' % (version, remotename)
-  try:
-    urllib.request.urlretrieve(url, localname)
-    return True
-  except urllib.error.URLError as e:
-    if e.code == 404:
-      return False
-    raise e
-
-def download_release(version, temp_dir, force):
-  print('  downloading %s source release...' % version, end='', flush=True)
-  source = os.path.join(temp_dir, 'lucene-%s' % version) 
-  if os.path.exists(source):
-    if force:
-      shutil.rmtree(source)
-    else:
-      print('uptodate')
-      return source
-
-  filename = 'lucene-%s-src.tgz' % version
-  source_tgz = os.path.join(temp_dir, filename)
-  if not download_from_mirror(version, filename, source_tgz) and \
-     not download_from_archives(version, filename, source_tgz):
-    raise Exception('Could not find version %s in apache mirror or archives' % version)
-
-  olddir = os.getcwd()
-  os.chdir(temp_dir)
-  scriptutil.run('tar -xvzf %s' % source_tgz)
-  os.chdir(olddir) 
-  print('done')
-  return source
-
-def read_config():
-  parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter,
-                                   description='''\
-Add backcompat index and test for new version.  See:
-http://wiki.apache.org/lucene-java/ReleaseTodo#Generate_Backcompat_Indexes
-''')
-  parser.add_argument('--force', action='store_true', default=False,
-                      help='Redownload the version and rebuild, even if it already exists')
-  parser.add_argument('--no-cleanup', dest='cleanup', action='store_false', default=True,
-                      help='Do not cleanup the built indexes, so that they can be reused ' +
-                           'for adding to another branch')
-  parser.add_argument('--temp-dir', metavar='DIR', default='/tmp/lucenebwc',
-                      help='Temp directory to build backcompat indexes within')
-  parser.add_argument('version', type=scriptutil.Version.parse,
-                      help='Version to add, of the form X.Y.Z')
-  c = parser.parse_args()
-
-  return c
-  
-def main():
-  c = read_config() 
-  if not os.path.exists(c.temp_dir):
-    os.makedirs(c.temp_dir)
-
-  print('\nCreating backwards compatibility indexes')
-  source = download_release(c.version, c.temp_dir, c.force)
-  current_version = scriptutil.Version.parse(scriptutil.find_current_version())
-  create_and_add_index(source, 'cfs', c.version, current_version, c.temp_dir)
-  create_and_add_index(source, 'nocfs', c.version, current_version, c.temp_dir)
-  should_make_sorted =     current_version.is_back_compat_with(c.version) \
-                       and (c.version.major > 6 or (c.version.major == 6 and c.version.minor >= 2))
-  if should_make_sorted:
-    create_and_add_index(source, 'sorted', c.version, current_version, c.temp_dir)
-  if c.version.minor == 0 and c.version.bugfix == 0 and c.version.major < current_version.major:
-    create_and_add_index(source, 'moreterms', c.version, current_version, c.temp_dir)
-    create_and_add_index(source, 'dvupdates', c.version, current_version, c.temp_dir)
-    create_and_add_index(source, 'emptyIndex', c.version, current_version, c.temp_dir)
-    print ('\nMANUAL UPDATE REQUIRED: edit TestBackwardsCompatibility to enable moreterms, dvupdates, and empty index testing')
-    
-  print('\nAdding backwards compatibility tests')
-  update_backcompat_tests(['cfs', 'nocfs'], c.version, current_version)
-  if should_make_sorted:
-    update_backcompat_tests(['sorted'], c.version, current_version)
-
-  print('\nTesting changes')
-  check_backcompat_tests()
-
-  if c.cleanup:
-    print('\nCleaning up')
-    print('  deleting %s...' % c.temp_dir, end='', flush=True)
-    shutil.rmtree(c.temp_dir)
-    print('done')
-
-  print()
-
-if __name__ == '__main__':
-  try:
-    main()
-  except KeyboardInterrupt:
-    print('\nRecieved Ctrl-C, exiting early')
diff --git a/dev-tools/scripts/releaseWizard.py b/dev-tools/scripts/releaseWizard.py
index abd670eaa743..8ec5a4979508 100755
--- a/dev-tools/scripts/releaseWizard.py
+++ b/dev-tools/scripts/releaseWizard.py
@@ -1158,7 +1158,7 @@ def configure_pgp(gpg_todo):
             return False
         if length < 4096:
             print("Your key length is < 4096, Please generate a stronger key.")
-            print("Alternatively, follow instructions in http://www.apache.org/dev/release-signing.html#note")
+            print("Alternatively, follow instructions in https://infra.apache.org/release-signing.html#note")
             if not ask_yes_no("Have you configured your gpg to avoid SHA-1?"):
                 print("Please either generate a strong key or reconfigure your client")
                 return False
@@ -1181,7 +1181,7 @@ def configure_pgp(gpg_todo):
         if apache_sigs < 1:
             print(textwrap.dedent("""\
                 Your key is not signed by any other committer. 
-                Please review http://www.apache.org/dev/openpgp.html#apache-wot
+                Please review https://infra.apache.org/openpgp.html#apache-wot
                 and make sure to get your key signed until next time.
                 You may want to run 'gpg --refresh-keys' to refresh your keychain."""))
         uses_apacheid = is_code_signing_key = False
@@ -1191,9 +1191,9 @@ def configure_pgp(gpg_todo):
                 if 'CODE SIGNING KEY' in line.upper():
                     is_code_signing_key = True
         if not uses_apacheid:
-            print("WARNING: Your key should use your apache-id email address, see http://www.apache.org/dev/release-signing.html#user-id")
+            print("WARNING: Your key should use your apache-id email address, see https://infra.apache.org/release-signing.html#user-id")
         if not is_code_signing_key:
-            print("WARNING: You code signing key should be labeled 'CODE SIGNING KEY', see http://www.apache.org/dev/release-signing.html#key-comment")
+            print("WARNING: You code signing key should be labeled 'CODE SIGNING KEY', see https://infra.apache.org/release-signing.html#key-comment")
     except Exception as e:
         print("Could not check signatures of your key: %s" % e)
 
diff --git a/dev-tools/scripts/releaseWizard.yaml b/dev-tools/scripts/releaseWizard.yaml
index b00754f0be95..29db1bc0ca55 100644
--- a/dev-tools/scripts/releaseWizard.yaml
+++ b/dev-tools/scripts/releaseWizard.yaml
@@ -280,10 +280,10 @@ groups:
       voting rules, create a PGP/GPG key for use with signing and more. Please familiarise
       yourself with the resources listed below.
     links:
-    - http://www.apache.org/dev/release-publishing.html
-    - http://www.apache.org/legal/release-policy.html
-    - http://www.apache.org/dev/release-signing.html
-    - https://wiki.apache.org/lucene-java/ReleaseTodo
+    - https://infra.apache.org/release-publishing.html
+    - https://www.apache.org/legal/release-policy.html
+    - https://infra.apache.org/release-signing.html
+    - https://cwiki.apache.org/confluence/display/LUCENE/ReleaseTodo
   - !Todo
     id: tools
     title: Necessary tools are installed
@@ -321,8 +321,8 @@ groups:
         fingerprint for the key.
     function: configure_pgp
     links:
-    - http://www.apache.org/dev/release-signing.html
-    - http://www.apache.org/dev/openpgp.html#apache-wot
+    - https://infra.apache.org/release-signing.html
+    - https://infra.apache.org/openpgp.html#apache-wot
     - https://id.apache.org
     - https://dist.apache.org/repos/dist/release/lucene/KEYS
   - !Todo
@@ -1041,10 +1041,9 @@ groups:
     description: |
       Ensure your refrigerator has at least 2 beers - the svn import operation can take a while,
       depending on your upload bandwidth. We'll publish this directly to the production tree.
-      At the end of the task, the two links below shall work.
+      At the end of the task, the link below shall work.
     links:
-    - http://lucene.apache.org/core/{{ version }}
-    - http://lucene.apache.org/solr/{{ version }}
+    - https://solr.apache.org/{{ version }}
     vars:
       release_tag: releases/lucene-solr/{{ release_version }}
       version: "{{ release_version_major }}_{{ release_version_minor }}_{{ release_version_bugfix }}"
@@ -1250,15 +1249,13 @@ groups:
     post_description: |
       Wait a few minutes for the build to happen. You can follow the site build at https://ci2.apache.org/#/builders/3
 
-      Verify on https://lucene.apache.org that the site is OK.
+      Verify on https://solr.apache.org that the site is OK.
 
-      You can now also verify that http://lucene.apache.org/solr/api/solr-core/ and http://lucene.apache.org/core/api/core/
-      redirects to the latest version
+      You can now also verify that https://solr.apache.org/api/solr-core/ redirects to the latest version
     links:
       - https://ci2.apache.org/#/builders/3
-      - https://lucene.apache.org
-      - http://lucene.apache.org/solr/api/solr-core/
-      - http://lucene.apache.org/core/api/core/
+      - https://solr.apache.org
+      - https://solr.apache.org/api/solr-core/
   - !Todo
     id: update_doap
     title: Update the DOAP files
@@ -1522,114 +1519,6 @@ groups:
       - !Command
         cmd: git add -u .  && git commit -m "Add next bugfix version {{ next_version }}"  && git push
         logfile: commit-stable.log
-  - !Todo
-    id: backcompat_release
-    title: Generate Backcompat Indexes for release branch
-    description: |
-      After each version of Lucene is released, compressed CFS, non-CFS, and sorted indexes created with 
-      the newly released version are added to `lucene/backwards-codecs/src/test/org/apache/lucene/index/`, 
-      for use in testing backward index compatibility via org.apache.lucene.index.TestBackwardsCompatibility, 
-      which is also located under the `backwards-codecs/` module. There are also three indexes created only 
-      with major Lucene versions: moreterms, empty, and dvupdates. These indexes are created via methods 
-      on `TestBackwardsCompatibility` itself - see comments in the source for more information.
-
-      There is a script (`dev-tools/scripts/addBackcompatIndexes.py`) that automates most of the process.
-      It downloads the source for the specified release; generates indexes for the current release using 
-      `TestBackwardsCompatibility`; compresses the indexes and places them in the correct place in the source 
-      tree; modifies TestBackwardsCompatibility.java to include the generated indexes in the list of indexes 
-      to test; and then runs `TestBackwardsCompatibility`.
-      
-      In this and the next two steps we'll guide you through using this tool on each of the branches.
-    depends: 
-    - increment_release_version
-    vars:
-      temp_dir: "{{ [release_folder, 'backcompat'] | path_join }}"
-    commands: !Commands
-      root_folder: '{{ git_checkout_folder }}'
-      commands_text: Run these commands to add back-compat indices to release branch
-      commands:
-      - !Command
-        cmd: git checkout {{ release_branch }} && git pull --ff-only && git clean -df && git checkout -- .
-        tee: true
-        logfile: checkout.log
-      - !Command
-        cmd: "{{ gradle_cmd }} clean"
-      - !Command
-        cmd: python3 -u dev-tools/scripts/addBackcompatIndexes.py --no-cleanup  --temp-dir {{ temp_dir }} {{ release_version }}  && git add lucene/backward-codecs/src/test/org/apache/lucene/index/
-        logfile: add-backcompat.log
-      - !Command
-        cmd: git diff --staged
-        comment: Check the git diff before committing
-        tee: true
-      - !Command
-        cmd: git commit -m "Add back-compat indices for {{ release_version }}"  && git push
-        logfile: commit.log
-  - !Todo
-    id: backcompat_stable
-    title: Generate Backcompat Indexes for stable branch
-    description: |
-      Now generate back-compat for stable branch ({{ stable_branch }})
-    depends: 
-    - increment_release_version
-    vars:
-      temp_dir: "{{ [release_folder, 'backcompat'] | path_join }}"
-    commands: !Commands
-      root_folder: '{{ git_checkout_folder }}'
-      commands_text: Run these commands to add back-compat indices to {{ stable_branch }}
-      commands:
-      - !Command
-        cmd: git checkout {{ stable_branch }} && git pull --ff-only && git clean -df && git checkout -- .
-        tee: true
-        logfile: checkout.log
-      - !Command
-        cmd: "{{ gradle_cmd }} clean"
-      - !Command
-        cmd: python3 -u dev-tools/scripts/addBackcompatIndexes.py --no-cleanup  --temp-dir {{ temp_dir }} {{ release_version }}  && git add lucene/backward-codecs/src/test/org/apache/lucene/index/  
-        logfile: add-backcompat.log
-      - !Command
-        cmd: git diff --staged
-        comment: Check the git diff before committing
-        tee: true
-      - !Command
-        cmd: git commit -m "Add back-compat indices for {{ release_version }}"  && git push
-        logfile: commit.log
-  - !Todo
-    id: backcompat_master
-    title: Generate Backcompat Indexes for unstable branch
-    description: |
-      Now generate back-compat for unstable (master) branch.
-      Note that this time we do not specify `--no-cleanup` meaning the tmp folder will be deleted
-    depends: 
-    - increment_release_version
-    vars:
-      temp_dir: "{{ [release_folder, 'backcompat'] | path_join }}"
-      version: "{{ set_java_home(master_version) }}"
-    commands: !Commands
-      root_folder: '{{ git_checkout_folder }}'
-      commands_text: Run these commands to add back-compat indices to master
-      commands:
-      - !Command
-        cmd: git checkout master && git pull --ff-only && git clean -df && git checkout -- .
-        tee: true
-        logfile: checkout.log
-      - !Command
-        cmd: "{{ gradle_cmd }} clean"
-      - !Command
-        cmd: python3 -u dev-tools/scripts/addBackcompatIndexes.py  --temp-dir {{ temp_dir }}  {{ release_version }}  && git add lucene/backward-codecs/src/test/org/apache/lucene/index/  
-        logfile: add-backcompat.log
-      - !Command
-        cmd: git diff --staged
-        comment: Check the git diff before committing
-        tee: true
-      - !Command
-        cmd: git commit -m "Add back-compat indices for {{ release_version }}"  && git push
-        logfile: commit.log
-    post_description: |
-      When doing a major version release, eg. 8.0.0, you might also need to reenable some 
-      backward compatibility tests for corner cases. To find them, run grep -r assume 
-      lucene/backward-codecs/, which should find tests that have been disabled on master 
-      because there was no released Lucene version to test against.
-      {{ set_java_home(release_version) }}
   - !Todo
     id: jira_release
     title: Mark version as released in JIRA
diff --git a/gradle/maven/defaults-maven.gradle b/gradle/maven/defaults-maven.gradle
index 9e41b38ca7f2..0ad4b9e8294f 100644
--- a/gradle/maven/defaults-maven.gradle
+++ b/gradle/maven/defaults-maven.gradle
@@ -99,7 +99,7 @@ configure(subprojects.findAll { it.path in rootProject.published }) { prj ->
           licenses {
             license {
               name = 'Apache 2'
-              url = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+              url = 'https://apache.org/licenses/LICENSE-2.0.txt'
             }
           }
 
diff --git a/solr/README.md b/solr/README.md
index 2401e2ba6eaa..1a9b2570bbb2 100644
--- a/solr/README.md
+++ b/solr/README.md
@@ -148,7 +148,7 @@ example/
 dist/solr-<component>-XX.jar
   The Apache Solr libraries.  To compile Apache Solr Plugins,
   one or more of these will be required.  The core library is
-  required at a minimum. (see http://wiki.apache.org/solr/SolrPlugins
+  required at a minimum. (see https://solr.apache.org/guide/solr-plugins.html
   for more information).
 
 docs/index.html
@@ -195,7 +195,7 @@ possession, use, and/or re-export to another country, of
 encryption software.  BEFORE using any encryption software, please
 check your country's laws, regulations and policies concerning the
 import, possession, or use, and re-export of encryption software, to
-see if this is permitted.  See <http://www.wassenaar.org/> for more
+see if this is permitted.  See <https://www.wassenaar.org/> for more
 information.
 
 The U.S. Government Department of Commerce, Bureau of Industry and
@@ -213,4 +213,4 @@ software:
 
 Apache Solr uses the Apache Tika which uses the Bouncy Castle generic encryption libraries for
 extracting text content and metadata from encrypted PDF files.
-See http://www.bouncycastle.org/ for more details on Bouncy Castle.
+See https://www.bouncycastle.org/ for more details on Bouncy Castle.
diff --git a/solr/bin/install_solr_service.sh b/solr/bin/install_solr_service.sh
index 6cfb6a578e3e..fddeebbc31a9 100755
--- a/solr/bin/install_solr_service.sh
+++ b/solr/bin/install_solr_service.sh
@@ -79,7 +79,7 @@ for command in "grep -E \"^NAME=\" /etc/os-release" \
       distro=SUSE
     elif [[ ${distro_string,,} == *"darwin"* ]]; then
       echo "Sorry, this script does not support macOS. You'll need to setup Solr as a service manually using the documentation provided in the Solr Reference Guide."
-      echo "You could also try installing via Homebrew (http://brew.sh/), e.g. brew install solr"
+      echo "You could also try installing via Homebrew (https://brew.sh/), e.g. brew install solr"
       exit 1
     fi
     if [[ $distro ]] ; then break ; fi
diff --git a/solr/bin/post b/solr/bin/post
index 4c629d105937..25c30ea7cf83 100755
--- a/solr/bin/post
+++ b/solr/bin/post
@@ -94,7 +94,7 @@ function print_usage() {
   echo "* XML files: $THIS_SCRIPT -c records article*.xml"
   echo "* CSV file: $THIS_SCRIPT -c signals LATEST-signals.csv"
   echo "* Directory of files: $THIS_SCRIPT -c myfiles ~/Documents"
-  echo "* Web crawl: $THIS_SCRIPT -c gettingstarted http://lucene.apache.org/solr -recursive 1 -delay 1"
+  echo "* Web crawl: $THIS_SCRIPT -c gettingstarted https://solr.apache.org/ -recursive 1 -delay 1"
   echo "* Standard input (stdin): echo '{"commit": {}}' | $THIS_SCRIPT -c my_collection -type application/json -out yes -d"
   echo "* Data as string: $THIS_SCRIPT -c signals -type text/csv -out yes -d $'id,value\n1,0.47'"
   echo ""
@@ -115,7 +115,7 @@ ARGS=()
 
 while [ $# -gt 0 ]; do
   # TODO: natively handle the optional parameters to SPT
-  #       but for now they can be specified as bin/post -c collection-name delay=5 http://lucidworks.com
+  #       but for now they can be specified as bin/post -c collection-name delay=5 https://lucidworks.com
 
   if [[ -d "$1" ]]; then
     # Directory
diff --git a/solr/bin/solr b/solr/bin/solr
index f28fb6c46697..be107b48dbbe 100755
--- a/solr/bin/solr
+++ b/solr/bin/solr
@@ -2034,7 +2034,7 @@ if [ "$GC_LOG_OPTS" != "" ]; then
       GC_LOG_OPTS+=($JAVA8_GC_LOG_FILE_OPTS)
     fi
   else
-    # http://openjdk.java.net/jeps/158
+    # https://openjdk.java.net/jeps/158
     for i in "${!GC_LOG_OPTS[@]}";
     do
       # for simplicity, we only look at the prefix '-Xlog:gc'
diff --git a/solr/contrib/analysis-extras/src/java/org/apache/solr/update/processor/OpenNLPExtractNamedEntitiesUpdateProcessorFactory.java b/solr/contrib/analysis-extras/src/java/org/apache/solr/update/processor/OpenNLPExtractNamedEntitiesUpdateProcessorFactory.java
index 575d9082b9b4..9fcf5caadac1 100644
--- a/solr/contrib/analysis-extras/src/java/org/apache/solr/update/processor/OpenNLPExtractNamedEntitiesUpdateProcessorFactory.java
+++ b/solr/contrib/analysis-extras/src/java/org/apache/solr/update/processor/OpenNLPExtractNamedEntitiesUpdateProcessorFactory.java
@@ -74,7 +74,7 @@
  *   &lt;/fieldType&gt;
  * </pre>
  *
- * <p>See the <a href="http://opennlp.apache.org/models.html">OpenNLP website</a>
+ * <p>See the <a href="https://opennlp.apache.org/models.html">OpenNLP website</a>
  * for information on downloading pre-trained models.</p>
  *
  * Note that in order to use model files larger than 1MB on SolrCloud,
diff --git a/solr/contrib/extraction/README.md b/solr/contrib/extraction/README.md
index f3fdb5c7fb5b..1e425ca09957 100644
--- a/solr/contrib/extraction/README.md
+++ b/solr/contrib/extraction/README.md
@@ -7,11 +7,11 @@ Introduction
 Apache Solr Extraction provides a means for extracting and indexing content contained in "rich" documents, such
 as Microsoft Word, Adobe PDF, etc.  (Each name is a trademark of their respective owners)  This contrib module
 uses Apache Tika to extract content and metadata from the files, which can then be indexed.  For more information,
-see http://wiki.apache.org/solr/ExtractingRequestHandler
+see https://solr.apache.org/guide/uploading-data-with-solr-cell-using-apache-tika.html
 
 Getting Started
 ---------------
 You will need Solr up and running.  Then, simply add the extraction JAR file, plus the Tika dependencies (in the ./lib folder)
-to your Solr Home lib directory.  See http://wiki.apache.org/solr/ExtractingRequestHandler for more details on hooking it in
+to your Solr Home lib directory.  See https://solr.apache.org/guide/uploading-data-with-solr-cell-using-apache-tika.html for more details on hooking it in
  and configuring.
 
diff --git a/solr/contrib/extraction/src/java/org/apache/solr/handler/extraction/ExtractingDocumentLoader.java b/solr/contrib/extraction/src/java/org/apache/solr/handler/extraction/ExtractingDocumentLoader.java
index f74e7b264c52..75a4a25784e8 100644
--- a/solr/contrib/extraction/src/java/org/apache/solr/handler/extraction/ExtractingDocumentLoader.java
+++ b/solr/contrib/extraction/src/java/org/apache/solr/handler/extraction/ExtractingDocumentLoader.java
@@ -191,7 +191,7 @@ public void load(SolrQueryRequest req, SolrQueryResponse rsp,
           if (xpathExpr != null) {
             Matcher matcher =
                     PARSER.parse(xpathExpr);
-            serializer.startDocument();//The MatchingContentHandler does not invoke startDocument.  See http://tika.markmail.org/message/kknu3hw7argwiqin
+            serializer.startDocument();//The MatchingContentHandler does not invoke startDocument.  See https://lists.apache.org/thread.html/5ec63e104e564a2363e45f74d5aced6520b7d32b4b625762ef56cb86%401226775505%40%3Cdev.tika.apache.org%3E
             parsingHandler = new MatchingContentHandler(serializer, matcher);
           } else {
             parsingHandler = serializer;
diff --git a/solr/contrib/langid/src/java/org/apache/solr/update/processor/LangDetectLanguageIdentifierUpdateProcessor.java b/solr/contrib/langid/src/java/org/apache/solr/update/processor/LangDetectLanguageIdentifierUpdateProcessor.java
index 8b4161ae8b0f..e1e6fa3a5416 100644
--- a/solr/contrib/langid/src/java/org/apache/solr/update/processor/LangDetectLanguageIdentifierUpdateProcessor.java
+++ b/solr/contrib/langid/src/java/org/apache/solr/update/processor/LangDetectLanguageIdentifierUpdateProcessor.java
@@ -34,9 +34,10 @@
 import org.slf4j.LoggerFactory;
 
 /**
- * Identifies the language of a set of input fields using http://code.google.com/p/language-detection
+ * Identifies the language of a set of input fields using https://github.com/shuyo/language-detection
  * <p>
- * See <a href="http://wiki.apache.org/solr/LanguageDetection">http://wiki.apache.org/solr/LanguageDetection</a>
+ * See <a href="https://solr.apache.org/guide/detecting-languages-during-indexing.html">Detecting Languages During
+ * Indexing</a> in the Solr Ref Guide
  * @since 3.5
  */
 public class LangDetectLanguageIdentifierUpdateProcessor extends LanguageIdentifierUpdateProcessor {
diff --git a/solr/core/src/java/org/apache/solr/handler/admin/LukeRequestHandler.java b/solr/core/src/java/org/apache/solr/handler/admin/LukeRequestHandler.java
index 67b60090536a..be091a9d74e2 100644
--- a/solr/core/src/java/org/apache/solr/handler/admin/LukeRequestHandler.java
+++ b/solr/core/src/java/org/apache/solr/handler/admin/LukeRequestHandler.java
@@ -715,7 +715,7 @@ private static List<String> toListOfStringDests(List<CopyField> raw) {
 
   @Override
   public String getDescription() {
-    return "Lucene Index Browser.  Inspired and modeled after Luke: http://www.getopt.org/luke/";
+    return "Lucene Index Browser.  Inspired and modeled after Luke: https://code.google.com/archive/p/luke/";
   }
 
   @Override
diff --git a/solr/core/src/java/org/apache/solr/servlet/CheckLoggingConfiguration.java b/solr/core/src/java/org/apache/solr/servlet/CheckLoggingConfiguration.java
index 202696f36526..2b44365bbc9d 100644
--- a/solr/core/src/java/org/apache/solr/servlet/CheckLoggingConfiguration.java
+++ b/solr/core/src/java/org/apache/solr/servlet/CheckLoggingConfiguration.java
@@ -29,7 +29,7 @@ static void check() {
       throw new NoClassDefFoundError("Failed to initialize Apache Solr: "
           +"Could not find necessary SLF4j logging jars. If using Jetty, the SLF4j logging jars need to go in "
           +"the jetty lib/ext directory. For other containers, the corresponding directory should be used. "
-          +"For more information, see: http://wiki.apache.org/solr/SolrLogging");
+          +"For more information, see: https://cwiki.apache.org/confluence/display/solr/SolrLogging#SolrLogging-UsingtheexampleloggingsetupincontainersotherthanJetty");
     }  
   }
   
diff --git a/solr/core/src/java/org/apache/solr/servlet/SolrRequestParsers.java b/solr/core/src/java/org/apache/solr/servlet/SolrRequestParsers.java
index 2592950c9967..96cc66dd2c88 100644
--- a/solr/core/src/java/org/apache/solr/servlet/SolrRequestParsers.java
+++ b/solr/core/src/java/org/apache/solr/servlet/SolrRequestParsers.java
@@ -213,7 +213,7 @@ private SolrQueryRequest buildRequestFrom(SolrCore core, SolrParams params, Coll
     strs = params.getParams( CommonParams.STREAM_FILE );
     if( strs != null ) {
       if( !enableRemoteStreams ) {
-        throw new SolrException( ErrorCode.BAD_REQUEST, "Remote Streaming is disabled. See http://lucene.apache.org/solr/guide/requestdispatcher-in-solrconfig.html for help" );
+        throw new SolrException( ErrorCode.BAD_REQUEST, "Remote Streaming is disabled. See https://solr.apache.org/guide/requestdispatcher-in-solrconfig.html for help" );
       }
       for( final String file : strs ) {
         ContentStreamBase stream = new ContentStreamBase.FileStream( new File(file) );
@@ -228,7 +228,7 @@ private SolrQueryRequest buildRequestFrom(SolrCore core, SolrParams params, Coll
     strs = params.getParams( CommonParams.STREAM_BODY );
     if( strs != null ) {
       if( !enableStreamBody ) {
-        throw new SolrException( ErrorCode.BAD_REQUEST, "Stream Body is disabled. See http://lucene.apache.org/solr/guide/requestdispatcher-in-solrconfig.html for help" );
+        throw new SolrException( ErrorCode.BAD_REQUEST, "Stream Body is disabled. See https://solr.apache.org/guide/requestdispatcher-in-solrconfig.html for help" );
       }
       for( final String body : strs ) {
         ContentStreamBase stream = new ContentStreamBase.StringStream( body );
diff --git a/solr/core/src/java/org/apache/solr/util/SimplePostTool.java b/solr/core/src/java/org/apache/solr/util/SimplePostTool.java
index 54ec6b2999ee..d38ec52b99af 100644
--- a/solr/core/src/java/org/apache/solr/util/SimplePostTool.java
+++ b/solr/core/src/java/org/apache/solr/util/SimplePostTool.java
@@ -1137,7 +1137,7 @@ public PageFetcherResult readPageFromUrl(URL u) {
         }
         res.httpStatus = 404;
         HttpURLConnection conn = (HttpURLConnection) u.openConnection();
-        conn.setRequestProperty("User-Agent", "SimplePostTool-crawler/"+VERSION_OF_THIS_TOOL+" (http://lucene.apache.org/solr/)");
+        conn.setRequestProperty("User-Agent", "SimplePostTool-crawler/"+VERSION_OF_THIS_TOOL+" (https://solr.apache.org/)");
         conn.setRequestProperty("Accept-Encoding", "gzip, deflate");
         conn.connect();
         res.httpStatus = conn.getResponseCode();
diff --git a/solr/documentation/src/markdown/index.template.md b/solr/documentation/src/markdown/index.template.md
index e1d11be3d876..e81c10bdb9bb 100644
--- a/solr/documentation/src/markdown/index.template.md
+++ b/solr/documentation/src/markdown/index.template.md
@@ -1,5 +1,5 @@
 <div>
-  <a href="http://lucene.apache.org/solr/">
+  <a href="https://solr.apache.org/">
     <img src="solr.svg" style="width:210px; margin:22px 0px 7px 20px; border:none;" title="Apache Solr Logo" alt="Solr" />
   </a>
   <div style="z-index:100;position:absolute;top:25px;left:226px">
diff --git a/solr/documentation/src/markdown/online-link.template.md b/solr/documentation/src/markdown/online-link.template.md
index 345f1349859a..64f208719c9f 100644
--- a/solr/documentation/src/markdown/online-link.template.md
+++ b/solr/documentation/src/markdown/online-link.template.md
@@ -1,5 +1,5 @@
 <div>
-  <a href="http://lucene.apache.org/solr/">
+  <a href="https://solr.apache.org/">
     <img src="solr.svg" style="width:210px; margin:22px 0px 7px 20px; border:none;" title="Apache Solr Logo" alt="Solr" />
   </a>
   <div style="z-index:100;position:absolute;top:25px;left:226px">
diff --git a/solr/solr-ref-guide/src/enabling-ssl.adoc b/solr/solr-ref-guide/src/enabling-ssl.adoc
index bf681b20db8f..95e9cd82242b 100644
--- a/solr/solr-ref-guide/src/enabling-ssl.adoc
+++ b/solr/solr-ref-guide/src/enabling-ssl.adoc
@@ -300,7 +300,7 @@ C:\> bin\solr.cmd -cloud -s cloud\node1 -z server1:2181,server2:2181,server3:218
 
 [IMPORTANT]
 ====
-curl on OS X Mavericks (10.9) has degraded SSL support. For more information and workarounds to allow one-way SSL, see http://curl.haxx.se/mail/archive-2013-10/0036.html. curl on OS X Yosemite (10.10) is improved - 2-way SSL is possible - see http://curl.haxx.se/mail/archive-2014-10/0053.html.
+curl on OS X Mavericks (10.9) has degraded SSL support. For more information and workarounds to allow one-way SSL, see https://curl.se/mail/archive-2013-10/0036.html. curl on OS X Yosemite (10.10) is improved - 2-way SSL is possible - see https://curl.se/mail/archive-2014-10/0053.html.
 
 The curl commands in the following sections will not work with the system `curl` on OS X Yosemite (10.10). Instead, the certificate supplied with the `-E` parameter must be in PKCS12 format, and the file supplied with the `--cacert` parameter must contain only the CA certificate, and no key (see <<Convert the Certificate and Key to PEM Format for Use with curl,above>> for instructions on creating this file):
 
@@ -309,7 +309,7 @@ $ curl -E solr-ssl.keystore.p12:secret --cacert solr-ssl.cacert.pem ...
 
 ====
 
-NOTE: If your operating system does not include curl, you can download binaries here: http://curl.haxx.se/download.html
+NOTE: If your operating system does not include curl, you can download binaries here: https://curl.se/download.html
 
 === Create a SolrCloud Collection using bin/solr
 
diff --git a/solr/solr-ref-guide/src/filter-descriptions.adoc b/solr/solr-ref-guide/src/filter-descriptions.adoc
index 2c059d202a0a..da285d5c3277 100644
--- a/solr/solr-ref-guide/src/filter-descriptions.adoc
+++ b/solr/solr-ref-guide/src/filter-descriptions.adoc
@@ -2738,7 +2738,7 @@ $ => DIGIT
 . => DIGIT
 \u002C => DIGIT
 
-# Don't split on ZWJ: http://en.wikipedia.org/wiki/Zero-width_joiner
+# Don't split on ZWJ: https://en.wikipedia.org/wiki/Zero-width_joiner
 \u200D => ALPHANUM
 ----
 
diff --git a/solr/solr-ref-guide/src/solr-jdbc-python-jython.adoc b/solr/solr-ref-guide/src/solr-jdbc-python-jython.adoc
index 55f37de7414a..b75157f4d7a1 100644
--- a/solr/solr-ref-guide/src/solr-jdbc-python-jython.adoc
+++ b/solr/solr-ref-guide/src/solr-jdbc-python-jython.adoc
@@ -84,7 +84,7 @@ jython [solr_java_native.py | solr_zxjdbc.py]
 ----
 #!/usr/bin/env jython
 
-# http://www.jython.org/jythonbook/en/1.0/DatabasesAndJython.html
+# https://jython.readthedocs.io/en/latest/DatabasesAndJython/
 # https://wiki.python.org/jython/DatabaseExamples#SQLite_using_JDBC
 
 import sys
@@ -118,7 +118,7 @@ if __name__ == '__main__':
 ----
 #!/usr/bin/env jython
 
-# http://www.jython.org/jythonbook/en/1.0/DatabasesAndJython.html
+# https://jython.readthedocs.io/en/latest/DatabasesAndJython/
 # https://wiki.python.org/jython/DatabaseExamples#SQLite_using_ziclix
 
 import sys