Help:Installation/Upgrade from SMW 1.9+ for MW 1.19 - 1.21

Installation
Upgrading from SMW 1.9.x or 2.0 (MW 1.19+ / non-native Composer support).
Further Information
Installation type:	upgrade
Installation method:	Composer
MediaWiki version:	N/A
Table of Contents
Contents 1 References

Backup your database and installation.
Change the following line depending on which version you used before in the "require" section of the "composer.json" file in the …/extensions/ExtensionInstaller/ directory (MW 1.19.x - MW 1.21.x)^[1] or from the base directory (MW 1.22+)^[2].
```
"mediawiki/semantic-media-wiki": "~1.9"
```
or
```
"mediawiki/semantic-media-wiki": "~2.0"
```
to
```
"mediawiki/semantic-media-wiki": "~2.1"
```
Run the update script from the base directory^[2] of your MediaWiki installation:^[3]
```
php composer.phar update
```
See the page "Special:Version" on your wiki to verify that the extension was successfully updated.
Run the setup script from the base directory^[2] of your MediaWiki installation:
```
php maintenance/update.php
```
Run the refresh database script from the base directory^[2] of your MediaWiki installation:^[4]
```
php extensions/SemanticMediaWiki/maintenance/SMW_refreshData.php -d 50 -v
```
Done!

References

↑ See also the example "composer.json" file, which already contains the line to be added here.
↑ ^2.0 ^2.1 ^2.2 ^2.3 Cite error: Invalid <ref> tag; no text was provided for refs named base
↑ Cite error: Invalid <ref> tag; no text was provided for refs named comglob
↑ Cite error: Invalid <ref> tag; no text was provided for refs named refresh

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