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'''Tip:''' The [http://techie-buzz.com/wordpress-plugins/wordpress-automatic-upgrade-plugin.html WordPress Automatic Upgrade plugin] can greatly simplify the upgrade process, allowing you to upgrade your blog in about 2 minutes by clicking through a series of on-screen tasks. If you use the plugin, choose the manual rather than automatic mode. | '''Tip:''' The [http://techie-buzz.com/wordpress-plugins/wordpress-automatic-upgrade-plugin.html WordPress Automatic Upgrade plugin] can greatly simplify the upgrade process, allowing you to upgrade your blog in about 2 minutes by clicking through a series of on-screen tasks. If you use the plugin, choose the manual rather than automatic mode. | ||
==Detailed Instructions== | ==Detailed Instructions== | ||
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===Overview of the Upgrade Process=== | ===Overview of the Upgrade Process=== | ||
# [[WordPress:#Step 1: Backup your database|Backup your database]]. Read [[WordPress:Backing Up Your Database]] for a detailed explanation. | # [[WordPress:#Step 1: Backup your database|Backup your database]]. Read [[WordPress:Backing Up Your Database]] for a detailed explanation. | ||
# [[WordPress:#Step 2: Backup ALL your WordPress files|Backup ALL your WordPress files]] in your WordPress directory. Don't forget your [[WordPress:Glossary#.htaccess<|<tt>.htaccess</tt>]] file. | # [[WordPress:#Step 2: Backup ALL your WordPress files|Backup ALL your WordPress files]] in your WordPress directory. Don't forget your [[WordPress:Glossary#.htaccess<|<tt>.htaccess</tt>]] file. | ||
# [[WordPress:#Step 3: Verify the backups|Verify the backups]] you created are there and usable. This is essential. | # [[WordPress:#Step 3: Verify the backups|Verify the backups]] you created are there and usable. This is essential. | ||
# [[WordPress:#Step 4: Deactivate ALL your Plugins|Deactivate ALL your Plugins]]. | # [[WordPress:#Step 4: Deactivate ALL your Plugins|Deactivate ALL your Plugins]]. | ||
# [[WordPress:#Step 5: Ensure first four steps are completed|Ensure first four steps are completed]]. Do not attempt the upgrade unless you have completed the first four steps. | # [[WordPress:#Step 5: Ensure first four steps are completed|Ensure first four steps are completed]]. Do not attempt the upgrade unless you have completed the first four steps. | ||
# [[WordPress:#Step 6: Download and extract the WordPress package|Download and extract the WordPress package]] from http://wordpress.org/download/. | # [[WordPress:#Step 6: Download and extract the WordPress package|Download and extract the WordPress package]] from http://wordpress.org/download/. | ||
# [[WordPress:#Step 7: Delete the old WordPress files|Delete the old WordPress files]] on your site, but '''<span style="color:red">DO NOT DELETE</span>''' | # [[WordPress:#Step 7: Delete the old WordPress files|Delete the old WordPress files]] on your site, but '''<span style="color:red">DO NOT DELETE</span>''' | ||
#*<code><span style="color:red">wp-config.php</span></code> file; | #*<code><span style="color:red">wp-config.php</span></code> file; | ||
#*<code><span style="color:red">wp-content</span></code> folder; Special Exception: the <code>wp-content/cache</code> and the <code>wp-content/plugins/widgets</code> folders should be deleted. | #*<code><span style="color:red">wp-content</span></code> folder; Special Exception: the <code>wp-content/cache</code> and the <code>wp-content/plugins/widgets</code> folders should be deleted. | ||
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#*<code><span style="color:red">.htaccess</span></code> file--if you have added custom rules to your <code>.htaccess</code>, do not delete it; | #*<code><span style="color:red">.htaccess</span></code> file--if you have added custom rules to your <code>.htaccess</code>, do not delete it; | ||
#*<code><span style="color:red">robots.txt</span></code> file--if your blog lives in the root of your site (ie. the blog is the site) and you have created such a file, do not delete it. | #*<code><span style="color:red">robots.txt</span></code> file--if your blog lives in the root of your site (ie. the blog is the site) and you have created such a file, do not delete it. | ||
# [[WordPress:#Step 8: Upload the new files|Upload the new files]] from your computer's hard drive to the appropriate WordPress folder on your site. | # [[WordPress:#Step 8: Upload the new files|Upload the new files]] from your computer's hard drive to the appropriate WordPress folder on your site. | ||
# [[WordPress:#Step 9: Run the WordPress upgrade program|Run the WordPress upgrade program]] and follow the instructions on the screen. | # [[WordPress:#Step 9: Run the WordPress upgrade program|Run the WordPress upgrade program]] and follow the instructions on the screen. | ||
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# [[WordPress:#Step 12: Reactivate Plugins|Reactivate Plugins]] | # [[WordPress:#Step 12: Reactivate Plugins|Reactivate Plugins]] | ||
# [[WordPress:#Step 13: Review what has changed in WordPress|Review what has changed in WordPress]]. | # [[WordPress:#Step 13: Review what has changed in WordPress|Review what has changed in WordPress]]. | ||
That's the overview of the upgrade process. Please continue reading the Detailed Upgrade Instructions. | That's the overview of the upgrade process. Please continue reading the Detailed Upgrade Instructions. | ||
Remember, if you do encounter problems, re-read the Instructions below to insure you've followed the proper procedures and consult [[WordPress:Installing_WordPress#Common_Installation_Problems|Troubleshooting: Common Installation Problems]]. | Remember, if you do encounter problems, re-read the Instructions below to insure you've followed the proper procedures and consult [[WordPress:Installing_WordPress#Common_Installation_Problems|Troubleshooting: Common Installation Problems]]. | ||
===Detailed Upgrade Instructions for 1.5.x, 2.0.x, 2.1.x, 2.2.x, 2.3.x, or 2.5.x, to {{CurrentVersion}}=== | ===Detailed Upgrade Instructions for 1.5.x, 2.0.x, 2.1.x, 2.2.x, 2.3.x, or 2.5.x, to {{CurrentVersion}}=== | ||
The following are the instructions that explain the above steps in more detail. Please read all of the instructions before starting. | The following are the instructions that explain the above steps in more detail. Please read all of the instructions before starting. | ||
====Step 1: Back up your database==== | ====Step 1: Back up your database==== | ||
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It is extremely important to back up your database before beginning the upgrade. If, for some reason, you find it necessary to revert back to the 'old' version of WordPress, you may have to restore your database from these backups. | It is extremely important to back up your database before beginning the upgrade. If, for some reason, you find it necessary to revert back to the 'old' version of WordPress, you may have to restore your database from these backups. | ||
====Step 2: Back up ALL your WordPress files==== | ====Step 2: Back up ALL your WordPress files==== | ||
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If you have made changes to any core WordPress files, or if you've got customized Plugins or Themes, you will want to have a good backup of those files. It is extremely important to back up your files before beginning the upgrade. If for some reason you find it necessary to revert back to the 'old' version of WordPress you will need to upload these files. | If you have made changes to any core WordPress files, or if you've got customized Plugins or Themes, you will want to have a good backup of those files. It is extremely important to back up your files before beginning the upgrade. If for some reason you find it necessary to revert back to the 'old' version of WordPress you will need to upload these files. | ||
====Step 3: Verify the backups==== | ====Step 3: Verify the backups==== | ||
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====Step 4: Deactivate ALL your Plugins==== | ====Step 4: Deactivate ALL your Plugins==== | ||
In your [[WordPress:Administration Panels|Administration panel]], under the Plugins choice, deactivate any Plugins. Because of the changes to WordPress, some Plugins may conflict with the upgrade process. | In your [[WordPress:Administration Panels|Administration panel]], under the Plugins choice, deactivate any Plugins. Because of the changes to WordPress, some Plugins may conflict with the upgrade process. | ||
====Step 5: Ensure first four steps are completed==== | ====Step 5: Ensure first four steps are completed==== | ||
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====Step 6: Download and extract the WordPress package==== | ====Step 6: Download and extract the WordPress package==== | ||
Download and unzip the WordPress package from http://wordpress.org/download/. | Download and unzip the WordPress package from http://wordpress.org/download/. | ||
* If you will be uploading WordPress to a remote web server, download the WordPress package to your computer with your favorite web browser and unzip the package. | * If you will be uploading WordPress to a remote web server, download the WordPress package to your computer with your favorite web browser and unzip the package. | ||
* If you have [[WordPress:Glossary#Shell|shell]] access to your web server, and are comfortable using console-based tools, you may wish to download WordPress directly to your [[WordPress:Glossary#Web server|web server]]. You can do so using <tt>wget</tt> , <tt>lynx</tt> or another console-based web browser, which are valuable if you want to avoid [[WordPress:Glossary#FTP|FTPing]]. Place the package in a directory parallel to your current wordpress directory (like "uploads," for example). Then, unzip it using: <tt>gunzip -c wordpress-{{CurrentVersion}}.tar.gz | tar -xf -</tt> or by using: <tt>tar -xzvf latest.tar.gz </tt> | * If you have [[WordPress:Glossary#Shell|shell]] access to your web server, and are comfortable using console-based tools, you may wish to download WordPress directly to your [[WordPress:Glossary#Web server|web server]]. You can do so using <tt>wget</tt> , <tt>lynx</tt> or another console-based web browser, which are valuable if you want to avoid [[WordPress:Glossary#FTP|FTPing]]. Place the package in a directory parallel to your current wordpress directory (like "uploads," for example). Then, unzip it using: <tt>gunzip -c wordpress-{{CurrentVersion}}.tar.gz | tar -xf -</tt> or by using: <tt>tar -xzvf latest.tar.gz </tt> | ||
The WordPress package will be extracted into a folder called <tt>wordpress</tt>. | The WordPress package will be extracted into a folder called <tt>wordpress</tt>. | ||
====Step 7: Delete the old WordPress files==== | ====Step 7: Delete the old WordPress files==== | ||
'''Why Delete?''' Generally, it is a good idea to delete whatever is possible because the uploading (or upgrading through cPanel) process may not correctly overwrite an existing file and that may cause problems later. | '''Why Delete?''' Generally, it is a good idea to delete whatever is possible because the uploading (or upgrading through cPanel) process may not correctly overwrite an existing file and that may cause problems later. | ||
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*<code>.htaccess</code> file--if you have added custom rules to your <code>.htaccess</code>, do not delete it; | *<code>.htaccess</code> file--if you have added custom rules to your <code>.htaccess</code>, do not delete it; | ||
*Custom Content and/or Plugins--if you have any images or other custom content or Plugins inside the <code>wp-content</code> folder, do NOT delete them. | *Custom Content and/or Plugins--if you have any images or other custom content or Plugins inside the <code>wp-content</code> folder, do NOT delete them. | ||
'''Delete these Files and Folders:''' | '''Delete these Files and Folders:''' | ||
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*<code>wp-content/plugins/widgets</code> folder; You only see this folder if you previously installed the Sidebar Widgets plugin. The Sidebar Widgets code conflicts with the built-in widget ability. | *<code>wp-content/plugins/widgets</code> folder; You only see this folder if you previously installed the Sidebar Widgets plugin. The Sidebar Widgets code conflicts with the built-in widget ability. | ||
'''How to Delete?''' There are several ways to delete the files from your WordPress site. You can use your FTP Client, or if you have access to Telenet or SSH you can use that. Some host providers also provide the ability to delete files and folders. | '''How to Delete?''' There are several ways to delete the files from your WordPress site. You can use your FTP Client, or if you have access to Telenet or SSH you can use that. Some host providers also provide the ability to delete files and folders. | ||
;Using FTP to delete files and folders :The same [[WordPress:FTP_Clients|FTP client]] you use for [[WordPress:Uploading_WordPress_to_a_remote_host|uploading]] can be used to delete files and folders. If your [[WordPress:FTP_Clients|FTP client]] does not appear to permit you to delete non-empty folders, check the available options for your [[WordPress:FTP_Clients|FTP client]]. You'll usually find an option that permits deleting non-empty folders. Deleting non-empty folders is a quick and thorough method cleaning out an old installation of WordPress. It is recommended that once the deleting is done, you switch back to the original setting for safety reasons. | ;Using FTP to delete files and folders :The same [[WordPress:FTP_Clients|FTP client]] you use for [[WordPress:Uploading_WordPress_to_a_remote_host|uploading]] can be used to delete files and folders. If your [[WordPress:FTP_Clients|FTP client]] does not appear to permit you to delete non-empty folders, check the available options for your [[WordPress:FTP_Clients|FTP client]]. You'll usually find an option that permits deleting non-empty folders. Deleting non-empty folders is a quick and thorough method cleaning out an old installation of WordPress. It is recommended that once the deleting is done, you switch back to the original setting for safety reasons. | ||
;Using Telnet or SSH to delete file :If you have a command-line login (telnet or ssh), you can enter the following commands to make backup copies of the files you need to keep and to delete ONLY the wordpress files in your directory (plus .htaccess). If you've customized other files (like <code>index.php</code>) not included by the <code>cp</code> commands below, copy them as well: | ;Using Telnet or SSH to delete file :If you have a command-line login (telnet or ssh), you can enter the following commands to make backup copies of the files you need to keep and to delete ONLY the wordpress files in your directory (plus .htaccess). If you've customized other files (like <code>index.php</code>) not included by the <code>cp</code> commands below, copy them as well: | ||
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:* After you have finished with the upgrade, you can restore any customizations to your templates or plugins from your backup directory. For example, use <code>cp backup/index.php .</code> to restore <code>index.php</code>. | :* After you have finished with the upgrade, you can restore any customizations to your templates or plugins from your backup directory. For example, use <code>cp backup/index.php .</code> to restore <code>index.php</code>. | ||
: Alternatively, using SSH, you could copy <code>wp-config.php, .htaccess</code>, and any content files you've added or altered into the ''new'' wordpress directory. Then, rename the old one (to archive it), and move the new one into its place. | : Alternatively, using SSH, you could copy <code>wp-config.php, .htaccess</code>, and any content files you've added or altered into the ''new'' wordpress directory. Then, rename the old one (to archive it), and move the new one into its place. | ||
====Step 8: Upload the new files==== | ====Step 8: Upload the new files==== | ||
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'''NOTE: If you did not delete the <code>wp-content</code> folder, you will need to overwrite some files during the upload.''' | '''NOTE: If you did not delete the <code>wp-content</code> folder, you will need to overwrite some files during the upload.''' | ||
The <code>wp-content</code> folder holds your WordPress Themes and Plugins. These should remain. Upload everything else first, then upload only those WordPress files that are new or changed to your new <code>wp-content</code> folder. Overwrite any old versions of default plugins with the new ones. | The <code>wp-content</code> folder holds your WordPress Themes and Plugins. These should remain. Upload everything else first, then upload only those WordPress files that are new or changed to your new <code>wp-content</code> folder. Overwrite any old versions of default plugins with the new ones. | ||
The WordPress default theme has changed so you will want to upload the <code>wp-content/themes/default</code> folder. If you have custom changes to the default theme, those changes will need to be reviewed and installed after the upgrade. | The WordPress default theme has changed so you will want to upload the <code>wp-content/themes/default</code> folder. If you have custom changes to the default theme, those changes will need to be reviewed and installed after the upgrade. | ||
====Step 9: Run the WordPress upgrade program==== | ====Step 9: Run the WordPress upgrade program==== | ||
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If you experience difficulties with login after your upgrade, it is worth clearing your browser's cookies. | If you experience difficulties with login after your upgrade, it is worth clearing your browser's cookies. | ||
====Step 10: Update Permalinks and .htaccess==== | ====Step 10: Update Permalinks and .htaccess==== | ||
In your [[WordPress:Permalinks_Options_SubPanel|Options->Permalinks]] panel update your Permalink Structure and, if necessary, place the rules in your [[WordPress:Glossary#.htaccess<|<tt>.htaccess</tt>]] file. Also see [[WordPress:Using_Permalinks|Using Permalinks]] for details regarding Permalinks and the [[WordPress:Glossary#.htaccess<|<tt>.htaccess</tt>]] file. | In your [[WordPress:Permalinks_Options_SubPanel|Options->Permalinks]] panel update your Permalink Structure and, if necessary, place the rules in your [[WordPress:Glossary#.htaccess<|<tt>.htaccess</tt>]] file. Also see [[WordPress:Using_Permalinks|Using Permalinks]] for details regarding Permalinks and the [[WordPress:Glossary#.htaccess<|<tt>.htaccess</tt>]] file. | ||
====Step 11: Install updated Plugins and Themes==== | ====Step 11: Install updated Plugins and Themes==== | ||
Please review the [[WordPress:Plugins/Plugin_Compatibility|Plugin Compatibility List]] and [[WordPress:Themes/Theme_Compatibility|Theme Compatibility List]], or plugin/theme authors, to find plugins and themes compatible with your new WordPress version. Upload and install new versions of your Plugins and Themes, if necessary. | Please review the [[WordPress:Plugins/Plugin_Compatibility|Plugin Compatibility List]] and [[WordPress:Themes/Theme_Compatibility|Theme Compatibility List]], or plugin/theme authors, to find plugins and themes compatible with your new WordPress version. Upload and install new versions of your Plugins and Themes, if necessary. | ||
====Step 12: Reactivate Plugins==== | ====Step 12: Reactivate Plugins==== | ||
Use your Administration Panel, Plugins, to activate your Plugins. | Use your Administration Panel, Plugins, to activate your Plugins. | ||
<!--Please note that if you are using the new WordPress Database Backup Plugin you may need to change the permissions on your <code>wp-content</code> folder to make it writeable by your webserver (either mode 666 or even 777). See [[WordPress:Changing_File_Permissions|Changing File Permissions]] for more details. | <!--Please note that if you are using the new WordPress Database Backup Plugin you may need to change the permissions on your <code>wp-content</code> folder to make it writeable by your webserver (either mode 666 or even 777). See [[WordPress:Changing_File_Permissions|Changing File Permissions]] for more details. | ||
--> | --> | ||
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Note: Remember that the above line should be added somewhere inside/between the PHP beginning '''<nowiki><?php</nowiki>''' and ending '''<nowiki>?></nowiki>''' code. | Note: Remember that the above line should be added somewhere inside/between the PHP beginning '''<nowiki><?php</nowiki>''' and ending '''<nowiki>?></nowiki>''' code. | ||
====Step 14: Review what has changed in WordPress==== | ====Step 14: Review what has changed in WordPress==== | ||
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*[[WordPress:Version_2.6|Version 2.6 Details]] | *[[WordPress:Version_2.6|Version 2.6 Details]] | ||
*[http://wordpress.org/development/ WordPress Development Blog] | *[http://wordpress.org/development/ WordPress Development Blog] | ||
=====Special note for Fantastico Upgrades===== | =====Special note for Fantastico Upgrades===== | ||
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<!-- saving for later upgrades | <!-- saving for later upgrades | ||
===Upgrade 2.0.6 to {{CurrentVersion}} === | ===Upgrade 2.0.6 to {{CurrentVersion}} === | ||
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As with all WordPress upgrades, the contents of your <code>/wp-content/</code> folder should remain intact and unchanged except as noted below. | As with all WordPress upgrades, the contents of your <code>/wp-content/</code> folder should remain intact and unchanged except as noted below. | ||
# Delete <code>/wp-admin/</code> folder. | # Delete <code>/wp-admin/</code> folder. | ||
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That's it. | That's it. | ||
Volunteers are assisting with problems on the [http://wordpress.org/support/ WordPress Support Forums]. | Volunteers are assisting with problems on the [http://wordpress.org/support/ WordPress Support Forums]. | ||
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==Other languages== | ==Other languages== | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
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| Ukrainian, украї́нська мо́ва || [http://hip.org.ua/wordpress/upgrade-wordpress-new.html any 2.0.x to 2.3.x], [http://ribel.org.ua/?p=97/ 2.0.5 to 2.0.6] | | Ukrainian, украї́нська мо́ва || [http://hip.org.ua/wordpress/upgrade-wordpress-new.html any 2.0.x to 2.3.x], [http://ribel.org.ua/?p=97/ 2.0.5 to 2.0.6] | ||
|} | |} | ||
==Troubleshooting== | ==Troubleshooting== | ||
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;Made Custom Changes/Hacks? :If you have made changes to other WordPress files ("hacked" WordPress), you are supposed to keep track of your changes. You will have to transfer your edits into the new code. [[WordPress:WordPress Versions]] lists the files that have changed in each release. | ;Made Custom Changes/Hacks? :If you have made changes to other WordPress files ("hacked" WordPress), you are supposed to keep track of your changes. You will have to transfer your edits into the new code. [[WordPress:WordPress Versions]] lists the files that have changed in each release. | ||
;Resist Using Old Code :Upgrading gives you the newest and best code. Using your old code, no matter how much you have customised it, almost certainly will cause problems. The temptation just to use your old modified code will be great, but the chances of errors are much greater. | ;Resist Using Old Code :Upgrading gives you the newest and best code. Using your old code, no matter how much you have customised it, almost certainly will cause problems. The temptation just to use your old modified code will be great, but the chances of errors are much greater. | ||
;Can I Go Back to Old Versions :You can, but it is usually not recommended to rollback (revert) your current version to an older version. That is because newer versions often include security updates and a rollback may put your site at risk. Second, the change between the database structure between versions may cause complications in maintaining your site content, posts, comments, and plugins that are dependent upon the information stored in the database. If you are still intent on this, proceed at your own risk. '''Please note, that without a backup of your entire site and your database, made prior to your upgrade attempt, a successful rollback is near impossible.''' Delete all WordPress files except for <tt>wp-config</tt>. [[WordPress:Uploading_WordPress_to_a_remote_host|Upload]] the files from your backup to your server and [[WordPress:Restoring_Your_Database_From_Backup|restore your database backup]]. Remember, you must have good backups for the rollback to work. For older WordPress versions, a rollback might not work. | ;Can I Go Back to Old Versions :You can, but it is usually not recommended to rollback (revert) your current version to an older version. That is because newer versions often include security updates and a rollback may put your site at risk. Second, the change between the database structure between versions may cause complications in maintaining your site content, posts, comments, and plugins that are dependent upon the information stored in the database. If you are still intent on this, proceed at your own risk. '''Please note, that without a backup of your entire site and your database, made prior to your upgrade attempt, a successful rollback is near impossible.''' Delete all WordPress files except for <tt>wp-config</tt>. [[WordPress:Uploading_WordPress_to_a_remote_host|Upload]] the files from your backup to your server and [[WordPress:Restoring_Your_Database_From_Backup|restore your database backup]]. Remember, you must have good backups for the rollback to work. For older WordPress versions, a rollback might not work. | ||
;Get More Help :If you get any errors following an upgrade, check [[WordPress:Installing_WordPress#Common_Installation_Problems|Troubleshooting: Common Installation Problems]], [[WordPress:Troubleshooting]], and the [http://codex.wordpress.org/Category:Installation Codex Installation Category of Articles]. If you can't find an answer, post a clear question on the [http://www.wordpress.org/support WordPress Suppport Forums]. You will be asked if you have used any old code. You'll be told to change it then, so you may as well change it now :) | ;Get More Help :If you get any errors following an upgrade, check [[WordPress:Installing_WordPress#Common_Installation_Problems|Troubleshooting: Common Installation Problems]], [[WordPress:Troubleshooting]], and the [http://codex.wordpress.org/Category:Installation Codex Installation Category of Articles]. If you can't find an answer, post a clear question on the [http://www.wordpress.org/support WordPress Suppport Forums]. You will be asked if you have used any old code. You'll be told to change it then, so you may as well change it now :) | ||
==Old Upgrade Information== | ==Old Upgrade Information== | ||
If you are considering upgrading to WordPress Version {{CurrentVersion}}, but you are at Version 1.2, then follow the 1.2 to 1.5 upgrade as describe in [[WordPress:Upgrade_1.2_to_1.5|Upgrading From WordPress Version 1.2 to 1.5]]. Once you are upgraded to Version 1.5.x, then follow the instructions as listed above to upgrade from 1.5 to {{CurrentVersion}}. | If you are considering upgrading to WordPress Version {{CurrentVersion}}, but you are at Version 1.2, then follow the 1.2 to 1.5 upgrade as describe in [[WordPress:Upgrade_1.2_to_1.5|Upgrading From WordPress Version 1.2 to 1.5]]. Once you are upgraded to Version 1.5.x, then follow the instructions as listed above to upgrade from 1.5 to {{CurrentVersion}}. | ||