Migrating and Upgrading to Joomla! 5.x • Re: Can't update from j4.4.10 to j5.2.3

Code:

### @package    Joomla# @copyright  (C) 2005 Open Source Matters, Inc. <https://www.joomla.org># @license    GNU General Public License version 2 or later; see LICENSE.txt##### READ THIS COMPLETELY IF YOU CHOOSE TO USE THIS FILE!## The line 'Options +FollowSymLinks' may cause problems with some server configurations.# It is required for the use of Apache mod_rewrite, but it may have already been set by# your server administrator in a way that disallows changing it in this .htaccess file.# If using it causes your site to produce an error, comment it out (add # to the# beginning of the line), reload your site in your browser and test your sef urls. If# they work, then it has been set by your server administrator and you do not need to# set it here.#### Can be commented out if causes errors, see notes above.Options +FollowSymlinksOptions -Indexes## No directory listings<IfModule mod_autoindex.c>IndexIgnore *</IfModule>## Suppress mime type detection in browsers for unknown types<IfModule mod_headers.c>Header always set X-Content-Type-Options "nosniff"</IfModule>## Protect against certain cross-origin requests. More information can be found here:## https://developer.mozilla.org/en-US/docs/Web/HTTP/Cross-Origin_Resource_Policy_(CORP)## https://web.dev/why-coop-coep/#<IfModule mod_headers.c>#Header always set Cross-Origin-Resource-Policy "same-origin"#Header always set Cross-Origin-Embedder-Policy "require-corp"#</IfModule>## Disable inline JavaScript when directly opening SVG files or embedding them with the object-tag<FilesMatch "\.svg$">  <IfModule mod_headers.c>    Header always set Content-Security-Policy "script-src 'none'"  </IfModule></FilesMatch>## These directives are only enabled if the Apache mod_rewrite module is enabled<IfModule mod_rewrite.c>RewriteEngine On## Begin - Rewrite rules to block out some common exploits.# If you experience problems on your site then comment out the operations listed# below by adding a # to the beginning of the line.# This attempts to block the most common type of exploit `attempts` on Joomla!## Block any script trying to base64_encode data within the URL.RewriteCond %{QUERY_STRING} base64_encode[^(]*\([^)]*\) [OR]# Block any script that includes a <script> tag in URL.RewriteCond %{QUERY_STRING} (<|%3C)([^s]*s)+cript.*(>|%3E) [NC,OR]# Block any script trying to set a PHP GLOBALS variable via URL.RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]# Block any script trying to modify a _REQUEST variable via URL.RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})# Return 403 Forbidden header and show the content of the root home pageRewriteRule .* index.php [F]### End - Rewrite rules to block out some common exploits.## Begin - Custom redirects## If you need to redirect some pages, or set a canonical non-www to# www redirect (or vice versa), place that code here. Ensure those# redirects use the correct RewriteRule syntax and the [R=301,L] flags.### End - Custom redirects### Uncomment the following line if your webserver's URL# is not directly related to physical file paths.# Update Your Joomla! Directory (just / for root).### RewriteBase /## Begin - Joomla! core SEF Section.## PHP FastCGI fix for HTTP Authorization, required for the API applicationRewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]# -- SEF URLs for the API application# If the requested path starts with /api, the file is not /api/index.php# and the request has not already been internally rewritten to the# api/index.php scriptRewriteCond %{REQUEST_URI} ^/api/RewriteCond %{REQUEST_URI} !^/api/index\.php# and the requested path and file doesn't directly match a physical fileRewriteCond %{REQUEST_FILENAME} !-f# and the requested path and file doesn't directly match a physical folderRewriteCond %{REQUEST_FILENAME} !-d# internally rewrite the request to the /api/index.php scriptRewriteRule .* api/index.php [L]# -- SEF URLs for the public frontend application# If the requested path and file is not /index.php and the request# has not already been internally rewritten to the index.php scriptRewriteCond %{REQUEST_URI} !^/index\.php# and the requested path and file doesn't directly match a physical fileRewriteCond %{REQUEST_FILENAME} !-f# and the requested path and file doesn't directly match a physical folderRewriteCond %{REQUEST_FILENAME} !-d# internally rewrite the request to the index.php scriptRewriteRule .* index.php [L]### End - Joomla! core SEF Section.</IfModule>## These directives are only enabled if the Apache mod_rewrite module is disabled<IfModule !mod_rewrite.c><IfModule mod_alias.c># When Apache mod_rewrite is not available, we instruct a temporary redirect# of the start page to the front controller explicitly so that the website# and the generated links can still be used.RedirectMatch 302 ^/$ /index.php/# RedirectTemp cannot be used instead</IfModule></IfModule>## These directives are only enabled if the Apache mod_headers module is enabled.## This section will check if a .gz file exists and if so will stream it##     directly or fallback to gzip any asset on the fly## If your site starts to look strange after enabling this, and you see##     ERR_CONTENT_DECODING_FAILED in your browser console network tab,##     then your server is already gzipping css and js files and you don't need this##     block enabled in your .htaccess<IfModule mod_headers.c># Serve gzip compressed CSS files if they exist# and the client accepts gzip.RewriteCond "%{HTTP:Accept-encoding}" "gzip"RewriteCond "%{REQUEST_FILENAME}\.gz" -sRewriteRule "^(.*)\.css" "$1\.css\.gz" [QSA]# Serve gzip compressed JS files if they exist# and the client accepts gzip.RewriteCond "%{HTTP:Accept-encoding}" "gzip"RewriteCond "%{REQUEST_FILENAME}\.gz" -sRewriteRule "^(.*)\.js" "$1\.js\.gz" [QSA]# Serve correct content types, and prevent mod_deflate double gzip.RewriteRule "\.css\.gz$" "-" [T=text/css,E=no-gzip:1]RewriteRule "\.js\.gz$" "-" [T=text/javascript,E=no-gzip:1]<FilesMatch "(\.js\.gz|\.css\.gz)$"># Serve correct encoding type.Header append Content-Encoding gzip# Force proxies to cache gzipped &# non-gzipped css/js files separately.Header append Vary Accept-Encoding</FilesMatch></IfModule>